fix(deps): update rust crate glow to 0.17

Reviewed-on: #14

.gitea/workflows/docs-deploy.yml

@@ -3,7 +3,7 @@ name: Docs Deploy
 on:
   push:
     branches:
-      - master
+      - devel
 
 jobs:
   deploy-docs:

.gitea/workflows/test.yml

@@ -48,7 +48,7 @@ jobs:
             --keep-going
       - name: Upload parity artifacts
         if: always()
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v7
         with:
           name: render-parity-artifacts
           path: target/render-parity/current

Cargo.toml

@@ -1,6 +1,6 @@
 [workspace]
 resolver = "3"
-members = ["crates/*"]
+members = ["crates/*", "apps/resource-viewer"]
 
 [profile.release]
 codegen-units = 1

apps/resource-viewer/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "resource-viewer"
+version = "0.1.0"
+edition = "2021"
+publish = false
+
+[dependencies]
+iced = "0.14"
+rfd = "0.17"
+nres = { path = "../../crates/nres" }
+rsli = { path = "../../crates/rsli" }

apps/resource-viewer/src/main.rs

@@ -0,0 +1,518 @@
+use iced::widget::{button, column, container, horizontal_space, row, scrollable, text};
+use iced::{application, Element, Length, Task, Theme};
+use rfd::FileDialog;
+use std::collections::BTreeMap;
+use std::fmt::Write as _;
+use std::fs;
+use std::path::{Path, PathBuf};
+
+fn main() -> iced::Result {
+    application("Parkan Resource Viewer", update, view)
+        .theme(theme)
+        .run_with(|| (ViewerApp::default(), Task::none()))
+}
+
+fn theme(_state: &ViewerApp) -> Theme {
+    Theme::Light
+}
+
+#[derive(Debug, Default)]
+struct ViewerApp {
+    document: Option<DocumentModel>,
+    status: String,
+}
+
+#[derive(Debug, Clone)]
+enum Message {
+    OpenRequested,
+    SelectNode(Selection),
+}
+
+fn update(state: &mut ViewerApp, message: Message) -> Task<Message> {
+    match message {
+        Message::OpenRequested => {
+            if let Some(path) = pick_archive_file() {
+                match load_document(&path) {
+                    Ok(document) => {
+                        state.status =
+                            format!("Loaded {} as {}", path.display(), document.format.label());
+                        state.document = Some(document);
+                    }
+                    Err(err) => {
+                        state.status = err;
+                    }
+                }
+            }
+        }
+        Message::SelectNode(selection) => {
+            if let Some(document) = state.document.as_mut() {
+                document.selected = selection;
+            }
+        }
+    }
+
+    Task::none()
+}
+
+fn view(state: &ViewerApp) -> Element<'_, Message> {
+    let top_bar = row![
+        button("Open archive").on_press(Message::OpenRequested),
+        text(status_text(state)).size(14)
+    ]
+    .spacing(12);
+
+    let content = if let Some(document) = &state.document {
+        view_document(document)
+    } else {
+        container(text("Open an .nres/.rsli/.lib archive to start.").size(16))
+            .width(Length::Fill)
+            .height(Length::Fill)
+            .center_x(Length::Fill)
+            .center_y(Length::Fill)
+            .into()
+    };
+
+    container(column![top_bar, content].spacing(12).padding(12))
+        .width(Length::Fill)
+        .height(Length::Fill)
+        .into()
+}
+
+fn status_text(state: &ViewerApp) -> String {
+    if state.status.is_empty() {
+        String::from("Ready")
+    } else {
+        state.status.clone()
+    }
+}
+
+fn view_document(document: &DocumentModel) -> Element<'_, Message> {
+    let mut tree = column![text("Archive tree").size(18)].spacing(6);
+    for item in &document.tree_rows {
+        let indent = horizontal_space().width(Length::Fixed(f32::from(item.depth) * 16.0));
+
+        let line = row![indent, text(&item.label).size(14)].spacing(6);
+        if let Some(selection) = item.selection {
+            let mut node_button = button(line)
+                .width(Length::Fill)
+                .on_press(Message::SelectNode(selection));
+
+            if selection == document.selected {
+                node_button = node_button.style(button::primary);
+            }
+
+            tree = tree.push(node_button);
+        } else {
+            tree = tree.push(line);
+        }
+    }
+
+    let (panel_title, fields) = selected_fields(document);
+    let mut fields_column = column![text(panel_title).size(18)].spacing(8);
+
+    for field in fields {
+        fields_column = fields_column.push(
+            row![
+                text(&field.key).size(14).width(Length::Fixed(220.0)),
+                text(&field.value).size(14).width(Length::Fill)
+            ]
+            .spacing(12),
+        );
+    }
+
+    let left = container(scrollable(tree))
+        .width(Length::FillPortion(2))
+        .height(Length::Fill);
+
+    let right = container(scrollable(fields_column))
+        .width(Length::FillPortion(5))
+        .height(Length::Fill);
+
+    row![left, right].spacing(12).height(Length::Fill).into()
+}
+
+fn selected_fields(document: &DocumentModel) -> (String, &[FieldRow]) {
+    match document.selected {
+        Selection::Archive => (
+            format!(
+                "{} fields ({})",
+                document.format.label(),
+                document.path.display()
+            ),
+            &document.archive_fields,
+        ),
+        Selection::Entry(index) => {
+            if let Some(entry) = document.entries.get(index) {
+                (entry.panel_title.clone(), &entry.fields)
+            } else {
+                (String::from("Entry"), &[])
+            }
+        }
+    }
+}
+
+fn pick_archive_file() -> Option<PathBuf> {
+    FileDialog::new()
+        .set_title("Open Parkan archive")
+        .pick_file()
+}
+
+fn load_document(path: &Path) -> Result<DocumentModel, String> {
+    let bytes =
+        fs::read(path).map_err(|err| format!("Failed to read {}: {err}", path.display()))?;
+    let Some(format) = detect_archive_format(&bytes) else {
+        return Err(format!(
+            "{} is not recognized as NRes/RsLi (unsupported magic).",
+            path.display()
+        ));
+    };
+
+    match format {
+        ArchiveFormat::Nres => load_nres_document(path),
+        ArchiveFormat::Rsli => load_rsli_document(path),
+    }
+}
+
+fn detect_archive_format(bytes: &[u8]) -> Option<ArchiveFormat> {
+    if bytes.len() >= 4 && &bytes[0..4] == b"NRes" {
+        return Some(ArchiveFormat::Nres);
+    }
+
+    if bytes.len() >= 2 && &bytes[0..2] == b"NL" {
+        return Some(ArchiveFormat::Rsli);
+    }
+
+    None
+}
+
+fn load_nres_document(path: &Path) -> Result<DocumentModel, String> {
+    let archive = nres::Archive::open_path(path)
+        .map_err(|err| format!("NRes open failed for {}: {err}", path.display()))?;
+
+    let info = archive.info();
+    let mut archive_fields = vec![
+        FieldRow::new("format", "NRes"),
+        FieldRow::new("file_size", info.file_size.to_string()),
+        FieldRow::new("raw_mode", info.raw_mode.to_string()),
+    ];
+
+    if let Some(header) = &info.header {
+        archive_fields.push(FieldRow::new(
+            "magic",
+            String::from_utf8_lossy(&header.magic).into_owned(),
+        ));
+        archive_fields.push(FieldRow::new("version", format_u32_dec_hex(header.version)));
+        archive_fields.push(FieldRow::new("entry_count", header.entry_count.to_string()));
+        archive_fields.push(FieldRow::new(
+            "total_size",
+            format!("{} (0x{:08X})", header.total_size, header.total_size),
+        ));
+        archive_fields.push(FieldRow::new(
+            "directory_offset",
+            header.directory_offset.to_string(),
+        ));
+        archive_fields.push(FieldRow::new(
+            "directory_size",
+            header.directory_size.to_string(),
+        ));
+    }
+
+    let mut entries = Vec::new();
+    for entry in archive.entries_inspect() {
+        let meta = entry.meta;
+        let mut fields = vec![
+            FieldRow::new("id", entry.id.0.to_string()),
+            FieldRow::new("name", meta.name.clone()),
+            FieldRow::new("type_id", format_u32_dec_hex(meta.kind)),
+            FieldRow::new("attr1", format_u32_dec_hex(meta.attr1)),
+            FieldRow::new("attr2", format_u32_dec_hex(meta.attr2)),
+            FieldRow::new("attr3", format_u32_dec_hex(meta.attr3)),
+            FieldRow::new("data_offset", meta.data_offset.to_string()),
+            FieldRow::new("data_size", meta.data_size.to_string()),
+            FieldRow::new("sort_index", meta.sort_index.to_string()),
+            FieldRow::new("name_raw_hex", bytes_as_hex(entry.name_raw)),
+            FieldRow::new("name_raw_ascii", bytes_as_ascii(entry.name_raw)),
+        ];
+
+        fields.push(FieldRow::new("find_key", meta.name.to_ascii_lowercase()));
+
+        entries.push(EntryView {
+            full_name: meta.name.clone(),
+            panel_title: format!("NRes entry #{}: {}", entry.id.0, meta.name),
+            fields,
+        });
+    }
+
+    let tree_rows = build_tree_rows(&entries);
+
+    Ok(DocumentModel {
+        path: path.to_path_buf(),
+        format: ArchiveFormat::Nres,
+        archive_fields,
+        entries,
+        tree_rows,
+        selected: Selection::Archive,
+    })
+}
+
+fn load_rsli_document(path: &Path) -> Result<DocumentModel, String> {
+    let library = rsli::Library::open_path(path)
+        .map_err(|err| format!("RsLi open failed for {}: {err}", path.display()))?;
+
+    let header = library.header();
+    let mut archive_fields = vec![
+        FieldRow::new("format", "RsLi"),
+        FieldRow::new("magic", String::from_utf8_lossy(&header.magic).into_owned()),
+        FieldRow::new(
+            "reserved",
+            format!("{} (0x{:02X})", header.reserved, header.reserved),
+        ),
+        FieldRow::new(
+            "version",
+            format!("{} (0x{:02X})", header.version, header.version),
+        ),
+        FieldRow::new("entry_count", header.entry_count.to_string()),
+        FieldRow::new("presorted_flag", format!("0x{:04X}", header.presorted_flag)),
+        FieldRow::new("xor_seed", format!("0x{:08X}", header.xor_seed)),
+        FieldRow::new("header_raw_hex", bytes_as_hex(&header.raw)),
+    ];
+
+    if let Some(ao) = library.ao_trailer() {
+        archive_fields.push(FieldRow::new("ao_trailer", "present"));
+        archive_fields.push(FieldRow::new("ao_overlay", ao.overlay.to_string()));
+        archive_fields.push(FieldRow::new("ao_raw_hex", bytes_as_hex(&ao.raw)));
+    } else {
+        archive_fields.push(FieldRow::new("ao_trailer", "absent"));
+    }
+
+    let mut entries = Vec::new();
+    for entry in library.entries_inspect() {
+        let meta = entry.meta;
+        let method_raw = (meta.flags as u16 as u32) & 0x1E0;
+
+        let fields = vec![
+            FieldRow::new("id", entry.id.0.to_string()),
+            FieldRow::new("name", meta.name.clone()),
+            FieldRow::new(
+                "flags",
+                format!("{} (0x{:04X})", meta.flags, meta.flags as u16),
+            ),
+            FieldRow::new("method", format!("{:?}", meta.method)),
+            FieldRow::new("method_raw", format!("0x{:03X}", method_raw)),
+            FieldRow::new("packed_size", meta.packed_size.to_string()),
+            FieldRow::new("unpacked_size", meta.unpacked_size.to_string()),
+            FieldRow::new("data_offset_effective", meta.data_offset.to_string()),
+            FieldRow::new("data_offset_raw", entry.data_offset_raw.to_string()),
+            FieldRow::new("sort_to_original", entry.sort_to_original.to_string()),
+            FieldRow::new("name_raw_hex", bytes_as_hex(entry.name_raw)),
+            FieldRow::new("name_raw_ascii", bytes_as_ascii(entry.name_raw)),
+            FieldRow::new("service_tail_hex", bytes_as_hex(entry.service_tail)),
+            FieldRow::new("service_tail_ascii", bytes_as_ascii(entry.service_tail)),
+        ];
+
+        entries.push(EntryView {
+            full_name: meta.name.clone(),
+            panel_title: format!("RsLi entry #{}: {}", entry.id.0, meta.name),
+            fields,
+        });
+    }
+
+    let tree_rows = build_tree_rows(&entries);
+
+    Ok(DocumentModel {
+        path: path.to_path_buf(),
+        format: ArchiveFormat::Rsli,
+        archive_fields,
+        entries,
+        tree_rows,
+        selected: Selection::Archive,
+    })
+}
+
+fn build_tree_rows(entries: &[EntryView]) -> Vec<TreeRow> {
+    let mut root = FolderNode::default();
+    for (index, entry) in entries.iter().enumerate() {
+        insert_tree_path(&mut root, &entry.full_name, index);
+    }
+
+    let mut rows = vec![TreeRow {
+        depth: 0,
+        label: String::from("[Archive fields]"),
+        selection: Some(Selection::Archive),
+    }];
+
+    flatten_tree(&root, 0, &mut rows);
+    rows
+}
+
+fn insert_tree_path(root: &mut FolderNode, full_name: &str, entry_index: usize) {
+    let mut parts: Vec<&str> = full_name
+        .split(['/', '\\'])
+        .filter(|part| !part.is_empty())
+        .collect();
+
+    if parts.is_empty() {
+        parts.push(full_name);
+    }
+
+    if parts.len() == 1 {
+        root.files.push((parts[0].to_string(), entry_index));
+        return;
+    }
+
+    let file_name = parts.pop().unwrap_or(full_name);
+    let mut node = root;
+    for part in parts {
+        node = node.folders.entry(part.to_string()).or_default();
+    }
+
+    node.files.push((file_name.to_string(), entry_index));
+}
+
+fn flatten_tree(node: &FolderNode, depth: u16, out: &mut Vec<TreeRow>) {
+    for (folder_name, folder_node) in &node.folders {
+        out.push(TreeRow {
+            depth,
+            label: format!("{folder_name}/"),
+            selection: None,
+        });
+        flatten_tree(folder_node, depth.saturating_add(1), out);
+    }
+
+    let mut files = node.files.clone();
+    files.sort_by(|left, right| left.0.cmp(&right.0));
+
+    for (name, index) in files {
+        out.push(TreeRow {
+            depth,
+            label: name,
+            selection: Some(Selection::Entry(index)),
+        });
+    }
+}
+
+fn bytes_as_hex(bytes: &[u8]) -> String {
+    let mut out = String::new();
+    for (index, byte) in bytes.iter().enumerate() {
+        if index > 0 {
+            out.push(' ');
+        }
+        let _ = write!(&mut out, "{byte:02X}");
+    }
+    out
+}
+
+fn bytes_as_ascii(bytes: &[u8]) -> String {
+    bytes
+        .iter()
+        .map(|byte| {
+            if byte.is_ascii_graphic() || *byte == b' ' {
+                char::from(*byte)
+            } else {
+                '.'
+            }
+        })
+        .collect()
+}
+
+fn format_u32_dec_hex(value: u32) -> String {
+    format!("{} (0x{:08X})", value, value)
+}
+
+#[derive(Debug, Clone)]
+struct DocumentModel {
+    path: PathBuf,
+    format: ArchiveFormat,
+    archive_fields: Vec<FieldRow>,
+    entries: Vec<EntryView>,
+    tree_rows: Vec<TreeRow>,
+    selected: Selection,
+}
+
+#[derive(Debug, Clone, Copy)]
+enum ArchiveFormat {
+    Nres,
+    Rsli,
+}
+
+impl ArchiveFormat {
+    fn label(self) -> &'static str {
+        match self {
+            Self::Nres => "NRes",
+            Self::Rsli => "RsLi",
+        }
+    }
+}
+
+#[derive(Debug, Clone)]
+struct EntryView {
+    full_name: String,
+    panel_title: String,
+    fields: Vec<FieldRow>,
+}
+
+#[derive(Debug, Clone)]
+struct FieldRow {
+    key: String,
+    value: String,
+}
+
+impl FieldRow {
+    fn new(key: impl Into<String>, value: impl Into<String>) -> Self {
+        Self {
+            key: key.into(),
+            value: value.into(),
+        }
+    }
+}
+
+#[derive(Debug, Clone)]
+struct TreeRow {
+    depth: u16,
+    label: String,
+    selection: Option<Selection>,
+}
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+enum Selection {
+    Archive,
+    Entry(usize),
+}
+
+#[derive(Default, Debug)]
+struct FolderNode {
+    folders: BTreeMap<String, FolderNode>,
+    files: Vec<(String, usize)>,
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn tree_builds_nested_paths() {
+        let entries = vec![
+            EntryView {
+                full_name: String::from("textures/ui/hud.texm"),
+                panel_title: String::new(),
+                fields: vec![],
+            },
+            EntryView {
+                full_name: String::from("textures/world/ground.texm"),
+                panel_title: String::new(),
+                fields: vec![],
+            },
+            EntryView {
+                full_name: String::from("root_file.msh"),
+                panel_title: String::new(),
+                fields: vec![],
+            },
+        ];
+
+        let rows = build_tree_rows(&entries);
+        assert!(rows.iter().any(|row| row.label == "textures/"));
+        assert!(rows.iter().any(|row| row.label == "ui/"));
+        assert!(rows.iter().any(|row| row.label == "hud.texm"));
+        assert!(rows.iter().any(|row| row.label == "root_file.msh"));
+    }
+}

crates/common/src/lib.rs

@@ -1,4 +1,6 @@
+use std::fs;
 use std::io;
+use std::path::{Path, PathBuf};
 
 /// Resource payload that can be either borrowed from mapped bytes or owned.
 #[derive(Clone, Debug)]
@@ -42,3 +44,18 @@ impl OutputBuffer for Vec<u8> {
         Ok(())
     }
 }
+
+/// Recursively collects all files under `root`.
+pub fn collect_files_recursive(root: &Path, out: &mut Vec<PathBuf>) {
+    let Ok(entries) = fs::read_dir(root) else {
+        return;
+    };
+    for entry in entries.flatten() {
+        let path = entry.path();
+        if path.is_dir() {
+            collect_files_recursive(&path, out);
+        } else if path.is_file() {
+            out.push(path);
+        }
+    }
+}

crates/msh-core/Cargo.toml

@@ -4,4 +4,9 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+encoding_rs = "0.8"
 nres = { path = "../nres" }
+
+[dev-dependencies]
+common = { path = "../common" }
+proptest = "1"

crates/msh-core/src/lib.rs

@@ -1,6 +1,7 @@
 pub mod error;
 
 use crate::error::Error;
+use encoding_rs::WINDOWS_1251;
 use std::sync::Arc;
 
 pub type Result<T> = core::result::Result<T, Error>;
@@ -347,13 +348,18 @@ fn parse_res10_names(data: &[u8], node_count: usize) -> Result<Vec<Option<String
         } else {
             slice
         };
-        let decoded = String::from_utf8_lossy(text).to_string();
+        let decoded = decode_cp1251(text);
         out.push(Some(decoded));
         off = end;
     }
     Ok(out)
 }
 
+fn decode_cp1251(bytes: &[u8]) -> String {
+    let (decoded, _, _) = WINDOWS_1251.decode(bytes);
+    decoded.into_owned()
+}
+
 struct RawResource {
     meta: nres::EntryMeta,
     bytes: Vec<u8>,

crates/msh-core/src/tests.rs

@@ -1,22 +1,10 @@
 use super::*;
+use common::collect_files_recursive;
 use nres::Archive;
+use proptest::prelude::*;
 use std::fs;
 use std::path::{Path, PathBuf};
 
-fn collect_files_recursive(root: &Path, out: &mut Vec<PathBuf>) {
-    let Ok(entries) = fs::read_dir(root) else {
-        return;
-    };
-    for entry in entries.flatten() {
-        let path = entry.path();
-        if path.is_dir() {
-            collect_files_recursive(&path, out);
-        } else if path.is_file() {
-            out.push(path);
-        }
-    }
-}
-
 fn nres_test_files() -> Vec<PathBuf> {
     let root = Path::new(env!("CARGO_MANIFEST_DIR"))
         .join("..")
@@ -169,18 +157,17 @@ fn res13_single_batch(index_start: u32, index_count: u16) -> Vec<u8> {
     batch
 }
 
-fn res10_names(names: &[Option<&str>]) -> Vec<u8> {
+fn res10_names_raw(names: &[Option<&[u8]>]) -> Vec<u8> {
     let mut out = Vec::new();
     for name in names {
         match name {
             Some(name) => {
-                let bytes = name.as_bytes();
                 out.extend_from_slice(
-                    &u32::try_from(bytes.len())
+                    &u32::try_from(name.len())
                         .expect("name size overflow in test")
                         .to_le_bytes(),
                 );
-                out.extend_from_slice(bytes);
+                out.extend_from_slice(name);
                 out.push(0);
             }
             None => out.extend_from_slice(&0u32.to_le_bytes()),
@@ -189,6 +176,11 @@ fn res10_names(names: &[Option<&str>]) -> Vec<u8> {
     out
 }
 
+fn res10_names(names: &[Option<&str>]) -> Vec<u8> {
+    let raw: Vec<Option<&[u8]>> = names.iter().map(|name| name.map(str::as_bytes)).collect();
+    res10_names_raw(&raw)
+}
+
 fn base_synthetic_entries() -> Vec<SyntheticEntry> {
     vec![
         synthetic_entry(RES1_NODE_TABLE, "Res1", 38, res1_stride38_nodes(1, Some(0))),
@@ -339,6 +331,22 @@ fn parse_synthetic_model_with_optional_res4_res5_res10() {
     assert_eq!(model.node_names, Some(vec![Some("Hull".to_string()), None]));
 }
 
+#[test]
+fn parse_res10_names_decodes_cp1251() {
+    let mut entries = base_synthetic_entries();
+    entries[0] = synthetic_entry(RES1_NODE_TABLE, "Res1", 38, res1_stride38_nodes(1, Some(0)));
+    entries.push(synthetic_entry(
+        RES10_NAMES,
+        "Res10",
+        1,
+        res10_names_raw(&[Some(&[0xC0])]),
+    ));
+    let payload = build_nested_nres(&entries);
+
+    let model = parse_model_payload(&payload).expect("failed to parse model with cp1251 name");
+    assert_eq!(model.node_names, Some(vec![Some("А".to_string())]));
+}
+
 #[test]
 fn parse_fails_when_required_resource_missing() {
     let mut entries = base_synthetic_entries();
@@ -419,3 +427,12 @@ fn parse_fails_for_batch_index_range_out_of_bounds() {
         })
     ));
 }
+
+proptest! {
+    #![proptest_config(ProptestConfig::with_cases(64))]
+
+    #[test]
+    fn parse_model_payload_never_panics_on_random_bytes(data in proptest::collection::vec(any::<u8>(), 0..8192)) {
+        let _ = parse_model_payload(&data);
+    }
+}

crates/nres/src/lib.rs

@@ -26,10 +26,28 @@ pub enum OpenMode {
     ReadWrite,
 }
 
+#[derive(Clone, Debug)]
+pub struct ArchiveHeader {
+    pub magic: [u8; 4],
+    pub version: u32,
+    pub entry_count: u32,
+    pub total_size: u32,
+    pub directory_offset: u64,
+    pub directory_size: u64,
+}
+
+#[derive(Clone, Debug)]
+pub struct ArchiveInfo {
+    pub raw_mode: bool,
+    pub file_size: u64,
+    pub header: Option<ArchiveHeader>,
+}
+
 #[derive(Debug)]
 pub struct Archive {
     bytes: Arc<[u8]>,
     entries: Vec<EntryRecord>,
+    info: ArchiveInfo,
     raw_mode: bool,
 }
 
@@ -54,6 +72,13 @@ pub struct EntryRef<'a> {
     pub meta: &'a EntryMeta,
 }
 
+#[derive(Copy, Clone, Debug)]
+pub struct EntryInspect<'a> {
+    pub id: EntryId,
+    pub meta: &'a EntryMeta,
+    pub name_raw: &'a [u8; 36],
+}
+
 #[derive(Clone, Debug)]
 struct EntryRecord {
     meta: EntryMeta,
@@ -76,17 +101,27 @@ impl Archive {
     }
 
     pub fn open_bytes(bytes: Arc<[u8]>, opts: OpenOptions) -> Result<Self> {
-        let (entries, _) = parse_archive(&bytes, opts.raw_mode)?;
+        let file_size = u64::try_from(bytes.len()).map_err(|_| Error::IntegerOverflow)?;
+        let (entries, header) = parse_archive(&bytes, opts.raw_mode)?;
         if opts.prefetch_pages {
             prefetch_pages(&bytes);
         }
         Ok(Self {
             bytes,
             entries,
+            info: ArchiveInfo {
+                raw_mode: opts.raw_mode,
+                file_size,
+                header,
+            },
             raw_mode: opts.raw_mode,
         })
     }
 
+    pub fn info(&self) -> &ArchiveInfo {
+        &self.info
+    }
+
     pub fn entry_count(&self) -> usize {
         self.entries.len()
     }
@@ -101,6 +136,17 @@ impl Archive {
         })
     }
 
+    pub fn entries_inspect(&self) -> impl Iterator<Item = EntryInspect<'_>> {
+        self.entries.iter().enumerate().filter_map(|(idx, entry)| {
+            let id = u32::try_from(idx).ok()?;
+            Some(EntryInspect {
+                id: EntryId(id),
+                meta: &entry.meta,
+                name_raw: &entry.name_raw,
+            })
+        })
+    }
+
     pub fn find(&self, name: &str) -> Option<EntryId> {
         if self.entries.is_empty() {
             return None;
@@ -153,6 +199,16 @@ impl Archive {
         })
     }
 
+    pub fn inspect(&self, id: EntryId) -> Option<EntryInspect<'_>> {
+        let idx = usize::try_from(id.0).ok()?;
+        let entry = self.entries.get(idx)?;
+        Some(EntryInspect {
+            id,
+            meta: &entry.meta,
+            name_raw: &entry.name_raw,
+        })
+    }
+
     pub fn read(&self, id: EntryId) -> Result<ResourceData<'_>> {
         let range = self.entry_range(id)?;
         Ok(ResourceData::Borrowed(&self.bytes[range]))
@@ -377,7 +433,10 @@ impl Editor {
     }
 }
 
-fn parse_archive(bytes: &[u8], raw_mode: bool) -> Result<(Vec<EntryRecord>, u64)> {
+fn parse_archive(
+    bytes: &[u8],
+    raw_mode: bool,
+) -> Result<(Vec<EntryRecord>, Option<ArchiveHeader>)> {
     if raw_mode {
         let data_size = u32::try_from(bytes.len()).map_err(|_| Error::IntegerOverflow)?;
         let entry = EntryRecord {
@@ -398,10 +457,7 @@ fn parse_archive(bytes: &[u8], raw_mode: bool) -> Result<(Vec<EntryRecord>, u64)
                 name
             },
         };
-        return Ok((
+        return Ok((vec![entry], None));
-            vec![entry],
-            u64::try_from(bytes.len()).map_err(|_| Error::IntegerOverflow)?,
-        ));
     }
 
     if bytes.len() < 16 {
@@ -526,7 +582,17 @@ fn parse_archive(bytes: &[u8], raw_mode: bool) -> Result<(Vec<EntryRecord>, u64)
         });
     }
 
-    Ok((entries, directory_offset))
+    Ok((
+        entries,
+        Some(ArchiveHeader {
+            magic: *b"NRes",
+            version,
+            entry_count: u32::try_from(entry_count).map_err(|_| Error::IntegerOverflow)?,
+            total_size,
+            directory_offset,
+            directory_size: directory_len,
+        }),
+    ))
 }
 
 fn checked_range(offset: u64, size: u32, bytes_len: usize) -> Result<Range<usize>> {

crates/nres/src/tests.rs

@@ -1,4 +1,5 @@
 use super::*;
+use common::collect_files_recursive;
 use std::any::Any;
 use std::fs;
 use std::panic::{catch_unwind, AssertUnwindSafe};
@@ -13,20 +14,6 @@ struct SyntheticEntry<'a> {
     data: &'a [u8],
 }
 
-fn collect_files_recursive(root: &Path, out: &mut Vec<PathBuf>) {
-    let Ok(entries) = fs::read_dir(root) else {
-        return;
-    };
-    for entry in entries.flatten() {
-        let path = entry.path();
-        if path.is_dir() {
-            collect_files_recursive(&path, out);
-        } else if path.is_file() {
-            out.push(path);
-        }
-    }
-}
-
 fn nres_test_files() -> Vec<PathBuf> {
     let root = Path::new(env!("CARGO_MANIFEST_DIR"))
         .join("..")

crates/render-core/Cargo.toml

@@ -7,4 +7,5 @@ edition = "2021"
 msh-core = { path = "../msh-core" }
 
 [dev-dependencies]
+common = { path = "../common" }
 nres = { path = "../nres" }

crates/render-core/src/lib.rs

@@ -1,4 +1,5 @@
 use msh_core::Model;
+use std::collections::HashMap;
 
 pub const DEFAULT_UV_SCALE: f32 = 1024.0;
 
@@ -11,21 +12,24 @@ pub struct RenderVertex {
 #[derive(Clone, Debug)]
 pub struct RenderMesh {
     pub vertices: Vec<RenderVertex>,
+    pub indices: Vec<u16>,
     pub batch_count: usize,
+    pub index_overflow: bool,
 }
 
 impl RenderMesh {
     pub fn triangle_count(&self) -> usize {
-        self.vertices.len() / 3
+        self.indices.len() / 3
     }
 }
 
-/// Builds an expanded triangle list for a specific LOD/group pair.
+/// Builds an indexed triangle mesh for a specific LOD/group pair.
-///
-/// The output is suitable for simple `glDrawArrays(GL_TRIANGLES, ...)` paths.
 pub fn build_render_mesh(model: &Model, lod: usize, group: usize) -> RenderMesh {
     let mut vertices = Vec::new();
+    let mut indices = Vec::new();
+    let mut index_remap: HashMap<usize, u16> = HashMap::new();
     let mut batch_count = 0usize;
+    let mut index_overflow = false;
     let uv0 = model.uv0.as_ref();
 
     for node_index in 0..model.node_count {
@@ -49,36 +53,62 @@ pub fn build_render_mesh(model: &Model, lod: usize, group: usize) -> RenderMesh
                 continue;
             }
 
+            let batch_out_start = indices.len();
+            let mut batch_valid = true;
             for &idx in &model.indices[index_start..index_end] {
                 let final_idx_u64 = u64::from(batch.base_vertex).saturating_add(u64::from(idx));
                 let Ok(final_idx) = usize::try_from(final_idx_u64) else {
-                    continue;
+                    batch_valid = false;
+                    break;
                 };
                 let Some(pos) = model.positions.get(final_idx) else {
-                    continue;
+                    batch_valid = false;
+                    break;
                 };
-                let uv = uv0
+
-                    .and_then(|uvs| uvs.get(final_idx))
+                let local_index = if let Some(&mapped) = index_remap.get(&final_idx) {
-                    .copied()
+                    mapped
-                    .map(|packed| {
+                } else {
-                        [
+                    let Ok(mapped) = u16::try_from(vertices.len()) else {
-                            packed[0] as f32 / DEFAULT_UV_SCALE,
+                        index_overflow = true;
-                            packed[1] as f32 / DEFAULT_UV_SCALE,
+                        batch_valid = false;
-                        ]
+                        break;
-                    })
+                    };
-                    .unwrap_or([0.0, 0.0]);
+                    let uv = uv0
-                vertices.push(RenderVertex {
+                        .and_then(|uvs| uvs.get(final_idx))
-                    position: *pos,
+                        .copied()
-                    uv0: uv,
+                        .map(|packed| {
-                });
+                            [
+                                packed[0] as f32 / DEFAULT_UV_SCALE,
+                                packed[1] as f32 / DEFAULT_UV_SCALE,
+                            ]
+                        })
+                        .unwrap_or([0.0, 0.0]);
+                    vertices.push(RenderVertex {
+                        position: *pos,
+                        uv0: uv,
+                    });
+                    index_remap.insert(final_idx, mapped);
+                    mapped
+                };
+
+                indices.push(local_index);
             }
+
+            if !batch_valid {
+                indices.truncate(batch_out_start);
+                continue;
+            }
+
             batch_count += 1;
         }
     }
 
     RenderMesh {
         vertices,
+        indices,
         batch_count,
+        index_overflow,
     }
 }
 

crates/render-core/src/tests.rs

@@ -1,23 +1,10 @@
 use super::*;
+use common::collect_files_recursive;
 use msh_core::parse_model_payload;
 use nres::Archive;
 use std::fs;
 use std::path::{Path, PathBuf};
 
-fn collect_files_recursive(root: &Path, out: &mut Vec<PathBuf>) {
-    let Ok(entries) = fs::read_dir(root) else {
-        return;
-    };
-    for entry in entries.flatten() {
-        let path = entry.path();
-        if path.is_dir() {
-            collect_files_recursive(&path, out);
-        } else if path.is_file() {
-            out.push(path);
-        }
-    }
-}
-
 fn nres_test_files() -> Vec<PathBuf> {
     let root = Path::new(env!("CARGO_MANIFEST_DIR"))
         .join("..")
@@ -71,12 +58,20 @@ fn build_render_mesh_for_real_models() {
                 )
             });
             let mesh = build_render_mesh(&model, 0, 0);
-            if !mesh.vertices.is_empty() {
+            if !mesh.indices.is_empty() {
                 meshes_non_empty += 1;
             }
             if compute_bounds_for_mesh(&mesh.vertices).is_some() {
                 bounds_non_empty += 1;
             }
+            for &index in &mesh.indices {
+                assert!(
+                    usize::from(index) < mesh.vertices.len(),
+                    "index out of bounds for '{}' in {}",
+                    entry.meta.name,
+                    archive_path.display()
+                );
+            }
             for vertex in &mesh.vertices {
                 assert!(
                     vertex.uv0[0].is_finite() && vertex.uv0[1].is_finite(),
@@ -189,6 +184,7 @@ fn build_render_mesh_handles_empty_slot_model() {
 
     let mesh = build_render_mesh(&model, 0, 0);
     assert!(mesh.vertices.is_empty());
+    assert!(mesh.indices.is_empty());
     assert_eq!(mesh.batch_count, 0);
     assert_eq!(mesh.triangle_count(), 0);
 }
@@ -225,9 +221,36 @@ fn build_render_mesh_supports_multi_node_and_uv_scaling() {
     let mesh = build_render_mesh(&model, 0, 0);
     assert_eq!(mesh.batch_count, 2);
     assert_eq!(mesh.vertices.len(), 6);
+    assert_eq!(mesh.indices, vec![0, 1, 2, 3, 4, 5]);
     assert_eq!(mesh.triangle_count(), 2);
     assert_eq!(mesh.vertices[0].uv0, [1.0, -1.0]);
     assert_eq!(mesh.vertices[1].uv0, [0.5, 0.25]);
     assert_eq!(mesh.vertices[2].uv0, [0.0, 0.0]);
     assert_eq!(mesh.vertices[3].uv0, [1.0, 1.0]);
 }
+
+#[test]
+fn build_render_mesh_deduplicates_shared_vertices() {
+    let model = msh_core::Model {
+        node_stride: 38,
+        node_count: 1,
+        nodes_raw: nodes_with_slot_refs(&[Some(0)]),
+        slots: vec![slot(0, 1)],
+        positions: vec![
+            [0.0, 0.0, 0.0],
+            [1.0, 0.0, 0.0],
+            [0.0, 1.0, 0.0],
+            [1.0, 1.0, 0.0],
+        ],
+        normals: None,
+        uv0: None,
+        indices: vec![0, 1, 2, 2, 1, 3],
+        batches: vec![batch(0, 6, 0)],
+        node_names: None,
+    };
+
+    let mesh = build_render_mesh(&model, 0, 0);
+    assert_eq!(mesh.vertices.len(), 4);
+    assert_eq!(mesh.indices, vec![0, 1, 2, 2, 1, 3]);
+    assert_eq!(mesh.triangle_count(), 2);
+}

crates/render-demo/Cargo.toml

@@ -13,10 +13,18 @@ msh-core = { path = "../msh-core" }
 nres = { path = "../nres" }
 render-core = { path = "../render-core" }
 texm = { path = "../texm" }
-sdl2 = { version = "0.37", optional = true, default-features = false, features = ["bundled", "static-link"] }
+glow = { version = "0.17", optional = true }
-glow = { version = "0.16", optional = true }
 image = { version = "0.25", optional = true, default-features = false, features = ["png"] }
 
+[dev-dependencies]
+common = { path = "../common" }
+
+[target.'cfg(target_os = "macos")'.dependencies]
+sdl2 = { version = "0.38", optional = true, default-features = false, features = ["use-pkgconfig"] }
+
+[target.'cfg(not(target_os = "macos"))'.dependencies]
+sdl2 = { version = "0.38", optional = true, default-features = false, features = ["bundled", "static-link"] }
+
 [[bin]]
 name = "parkan-render-demo"
 path = "src/main.rs"

crates/render-demo/README.md

@@ -1,6 +1,6 @@
 # render-demo
 
-Тестовый рендерер Parkan-моделей на Rust (`SDL2 + OpenGL ES 2.0`).
+Тестовый рендерер Parkan-моделей на Rust (`SDL2 + OpenGL`: GLES2 с fallback на Core 3.3).
 
 ## Назначение
 
@@ -18,6 +18,16 @@ cargo run -p render-demo --features demo -- \
   --group 0
 ```
 
+### macOS prerequisites
+
+Для macOS `render-demo` ожидает системный SDL2 через `pkg-config`:
+
+```bash
+brew install sdl2 pkg-config
+```
+
+После этого запускайте той же командой `cargo run ... --features demo`.
+
 Параметры:
 
 - `--archive` (обязательный): NRes-архив с `.msh` entry.
@@ -27,6 +37,7 @@ cargo run -p render-demo --features demo -- \
 - `--width`, `--height` (опционально, default `1280x720`).
 - `--angle` (опционально): фиксированный угол поворота вокруг Y (в радианах).
 - `--spin-rate` (опционально, default `0.35`): скорость вращения в интерактивном режиме.
+- В интерактивном режиме FPS выводится в заголовок окна и в stdout (обновление примерно каждые 0.5 сек).
 - `--texture <name>`: явное имя `Texm` (override авто-резолва).
 - `--texture-archive <path>`: путь к архиву текстур (по умолчанию `textures.lib` рядом с `--archive`).
 - `--material-archive <path>`: путь к `material.lib` (по умолчанию соседний `material.lib`).
@@ -70,4 +81,4 @@ cargo run -p render-demo --features demo -- \
 ## Ограничения
 
 - Используется только базовая texture-фаза (без полной material/fx анимации).
-- Вывод через `glDrawArrays(GL_TRIANGLES)` из расширенного triangle-list (позиции+UV).
+- Вывод через `glDrawElements(GL_TRIANGLES)` с index-buffer (позиции+UV).

crates/render-demo/src/lib.rs

@@ -435,23 +435,10 @@ fn decode_texture_entry(archive: &Archive, entry: EntryRef<'_>) -> Result<Loaded
 #[cfg(test)]
 mod tests {
     use super::*;
+    use common::collect_files_recursive;
     use std::fs;
     use std::path::{Path, PathBuf};
 
-    fn collect_files_recursive(root: &Path, out: &mut Vec<PathBuf>) {
-        let Ok(entries) = fs::read_dir(root) else {
-            return;
-        };
-        for entry in entries.flatten() {
-            let path = entry.path();
-            if path.is_dir() {
-                collect_files_recursive(&path, out);
-            } else if path.is_file() {
-                out.push(path);
-            }
-        }
-    }
-
     fn archive_with_msh() -> Option<PathBuf> {
         let root = Path::new(env!("CARGO_MANIFEST_DIR"))
             .join("..")

crates/render-demo/src/main.rs

@@ -1,8 +1,9 @@
 use glow::HasContext as _;
 use render_core::{build_render_mesh, compute_bounds_for_mesh};
 use render_demo::{load_model_with_name_from_archive, resolve_texture_for_model, LoadedTexture};
+use std::io::Write as _;
 use std::path::{Path, PathBuf};
-use std::time::Instant;
+use std::time::{Duration, Instant};
 
 struct Args {
     archive: PathBuf,
@@ -26,6 +27,12 @@ struct GpuTexture {
     handle: glow::NativeTexture,
 }
 
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+enum GlBackend {
+    Gles2,
+    Core33,
+}
+
 fn parse_args() -> Result<Args, String> {
     let mut archive = None;
     let mut model = None;
@@ -221,12 +228,17 @@ fn run(args: Args) -> Result<(), String> {
             )
         })?;
     let mesh = build_render_mesh(&loaded_model.model, args.lod, args.group);
-    if mesh.vertices.is_empty() {
+    if mesh.indices.is_empty() {
         return Err(format!(
             "model has no renderable triangles for lod={} group={}",
             args.lod, args.group
         ));
     }
+    if mesh.index_overflow {
+        eprintln!(
+            "warning: mesh exceeds u16 index space and may be partially rendered on GLES2 targets"
+        );
+    }
     let Some((bounds_min, bounds_max)) = compute_bounds_for_mesh(&mesh.vertices) else {
         return Err(String::from("failed to compute mesh bounds"));
     };
@@ -260,35 +272,7 @@ fn run(args: Args) -> Result<(), String> {
         .video()
         .map_err(|err| format!("failed to init SDL2 video: {err}"))?;
 
-    {
+    let (mut window, _gl_ctx, gl_backend) = create_window_and_context(&video, &args)?;
-        let gl_attr = video.gl_attr();
-        gl_attr.set_context_profile(sdl2::video::GLProfile::GLES);
-        gl_attr.set_context_version(2, 0);
-        gl_attr.set_depth_size(24);
-        gl_attr.set_double_buffer(true);
-    }
-
-    let mut window_builder = video.window(
-        "Parkan Render Demo (SDL2 + OpenGL ES 2.0)",
-        args.width,
-        args.height,
-    );
-    window_builder.opengl();
-    if args.capture.is_some() {
-        window_builder.hidden();
-    } else {
-        window_builder.resizable();
-    }
-    let window = window_builder
-        .build()
-        .map_err(|err| format!("failed to create window: {err}"))?;
-
-    let gl_ctx = window
-        .gl_create_context()
-        .map_err(|err| format!("failed to create OpenGL context: {err}"))?;
-    window
-        .gl_make_current(&gl_ctx)
-        .map_err(|err| format!("failed to make GL context current: {err}"))?;
     let _ = if args.capture.is_some() {
         video.gl_set_swap_interval(0)
     } else {
@@ -304,12 +288,13 @@ fn run(args: Args) -> Result<(), String> {
         vertex_data.push(vertex.uv0[1]);
     }
     let vertex_bytes = f32_slice_to_ne_bytes(&vertex_data);
+    let index_bytes = u16_slice_to_ne_bytes(&mesh.indices);
 
     let gl = unsafe {
         glow::Context::from_loader_function(|name| video.gl_get_proc_address(name) as *const _)
     };
 
-    let program = unsafe { create_program(&gl)? };
+    let program = unsafe { create_program(&gl, gl_backend)? };
     let u_mvp = unsafe { gl.get_uniform_location(program, "u_mvp") };
     let u_use_tex = unsafe { gl.get_uniform_location(program, "u_use_tex") };
     let u_tex = unsafe { gl.get_uniform_location(program, "u_tex") };
@@ -319,11 +304,16 @@ fn run(args: Args) -> Result<(), String> {
         .ok_or_else(|| String::from("shader attribute a_uv is missing"))?;
 
     let vbo = unsafe { gl.create_buffer().map_err(|e| e.to_string())? };
+    let ebo = unsafe { gl.create_buffer().map_err(|e| e.to_string())? };
     unsafe {
         gl.bind_buffer(glow::ARRAY_BUFFER, Some(vbo));
         gl.buffer_data_u8_slice(glow::ARRAY_BUFFER, &vertex_bytes, glow::STATIC_DRAW);
+        gl.bind_buffer(glow::ELEMENT_ARRAY_BUFFER, Some(ebo));
+        gl.buffer_data_u8_slice(glow::ELEMENT_ARRAY_BUFFER, &index_bytes, glow::STATIC_DRAW);
+        gl.bind_buffer(glow::ELEMENT_ARRAY_BUFFER, None);
         gl.bind_buffer(glow::ARRAY_BUFFER, None);
     }
+    let vao = unsafe { create_vertex_layout_if_needed(&gl, gl_backend, vbo, ebo, a_pos, a_uv)? };
 
     let gpu_texture = if let Some(texture) = resolved_texture.as_ref() {
         Some(unsafe { create_texture(&gl, texture)? })
@@ -341,8 +331,10 @@ fn run(args: Args) -> Result<(), String> {
             a_pos,
             a_uv,
             vbo,
+            ebo,
+            vao,
             gpu_texture.as_ref(),
-            mesh.vertices.len(),
+            mesh.indices.len(),
             &args,
             center,
             camera_distance,
@@ -351,7 +343,7 @@ fn run(args: Args) -> Result<(), String> {
     } else {
         run_interactive(
             &sdl,
-            &window,
+            &mut window,
             &gl,
             program,
             u_mvp.as_ref(),
@@ -360,8 +352,10 @@ fn run(args: Args) -> Result<(), String> {
             a_pos,
             a_uv,
             vbo,
+            ebo,
+            vao,
             gpu_texture.as_ref(),
-            mesh.vertices.len(),
+            mesh.indices.len(),
             &args,
             center,
             camera_distance,
@@ -372,6 +366,10 @@ fn run(args: Args) -> Result<(), String> {
         if let Some(texture) = gpu_texture {
             gl.delete_texture(texture.handle);
         }
+        if let Some(vao) = vao {
+            gl.delete_vertex_array(vao);
+        }
+        gl.delete_buffer(ebo);
         gl.delete_buffer(vbo);
         gl.delete_program(program);
     }
@@ -379,6 +377,97 @@ fn run(args: Args) -> Result<(), String> {
     result
 }
 
+fn create_window_and_context(
+    video: &sdl2::VideoSubsystem,
+    args: &Args,
+) -> Result<(sdl2::video::Window, sdl2::video::GLContext, GlBackend), String> {
+    let candidates = [
+        (GlBackend::Gles2, sdl2::video::GLProfile::GLES, 2, 0),
+        (GlBackend::Core33, sdl2::video::GLProfile::Core, 3, 3),
+    ];
+    let mut errors = Vec::new();
+
+    for (backend, profile, major, minor) in candidates {
+        {
+            let gl_attr = video.gl_attr();
+            gl_attr.set_context_profile(profile);
+            gl_attr.set_context_version(major, minor);
+            gl_attr.set_depth_size(24);
+            gl_attr.set_double_buffer(true);
+        }
+
+        let mut window_builder = video.window(
+            "Parkan Render Demo (SDL2 + OpenGL)",
+            args.width,
+            args.height,
+        );
+        window_builder.opengl();
+        if args.capture.is_some() {
+            window_builder.hidden();
+        } else {
+            window_builder.resizable();
+        }
+
+        let window = match window_builder.build() {
+            Ok(window) => window,
+            Err(err) => {
+                errors.push(format!(
+                    "{profile:?} {major}.{minor}: window build failed ({err})"
+                ));
+                continue;
+            }
+        };
+
+        let gl_ctx = match window.gl_create_context() {
+            Ok(ctx) => ctx,
+            Err(err) => {
+                errors.push(format!(
+                    "{profile:?} {major}.{minor}: context create failed ({err})"
+                ));
+                continue;
+            }
+        };
+
+        if let Err(err) = window.gl_make_current(&gl_ctx) {
+            errors.push(format!(
+                "{profile:?} {major}.{minor}: make current failed ({err})"
+            ));
+            continue;
+        }
+
+        return Ok((window, gl_ctx, backend));
+    }
+
+    Err(format!(
+        "failed to create OpenGL context. Attempts: {}",
+        errors.join(" | ")
+    ))
+}
+
+unsafe fn create_vertex_layout_if_needed(
+    gl: &glow::Context,
+    backend: GlBackend,
+    vbo: glow::NativeBuffer,
+    ebo: glow::NativeBuffer,
+    a_pos: u32,
+    a_uv: u32,
+) -> Result<Option<glow::NativeVertexArray>, String> {
+    if backend != GlBackend::Core33 {
+        return Ok(None);
+    }
+
+    let vao = gl.create_vertex_array().map_err(|e| e.to_string())?;
+    gl.bind_vertex_array(Some(vao));
+    gl.bind_buffer(glow::ARRAY_BUFFER, Some(vbo));
+    gl.bind_buffer(glow::ELEMENT_ARRAY_BUFFER, Some(ebo));
+    gl.enable_vertex_attrib_array(a_pos);
+    gl.vertex_attrib_pointer_f32(a_pos, 3, glow::FLOAT, false, 20, 0);
+    gl.enable_vertex_attrib_array(a_uv);
+    gl.vertex_attrib_pointer_f32(a_uv, 2, glow::FLOAT, false, 20, 12);
+    gl.bind_vertex_array(None);
+    Ok(Some(vao))
+}
+
 fn resolve_texture(args: &Args, model_name: &str) -> Result<Option<LoadedTexture>, String> {
     if args.no_texture {
         return Ok(None);
@@ -452,8 +541,10 @@ fn run_capture(
     a_pos: u32,
     a_uv: u32,
     vbo: glow::NativeBuffer,
+    ebo: glow::NativeBuffer,
+    vao: Option<glow::NativeVertexArray>,
     texture: Option<&GpuTexture>,
-    vertex_count: usize,
+    index_count: usize,
     args: &Args,
     center: [f32; 3],
     camera_distance: f32,
@@ -478,8 +569,10 @@ fn run_capture(
             a_pos,
             a_uv,
             vbo,
+            ebo,
+            vao,
             texture,
-            vertex_count,
+            index_count,
             args.width,
             args.height,
             &mvp,
@@ -495,7 +588,7 @@ fn run_capture(
 #[allow(clippy::too_many_arguments)]
 fn run_interactive(
     sdl: &sdl2::Sdl,
-    window: &sdl2::video::Window,
+    window: &mut sdl2::video::Window,
     gl: &glow::Context,
     program: glow::NativeProgram,
     u_mvp: Option<&glow::NativeUniformLocation>,
@@ -504,8 +597,10 @@ fn run_interactive(
     a_pos: u32,
     a_uv: u32,
     vbo: glow::NativeBuffer,
+    ebo: glow::NativeBuffer,
+    vao: Option<glow::NativeVertexArray>,
     texture: Option<&GpuTexture>,
-    vertex_count: usize,
+    index_count: usize,
     args: &Args,
     center: [f32; 3],
     camera_distance: f32,
@@ -514,6 +609,10 @@ fn run_interactive(
         .event_pump()
         .map_err(|err| format!("failed to get SDL event pump: {err}"))?;
     let start = Instant::now();
+    let mut fps_window_start = Instant::now();
+    let mut fps_frames: u32 = 0;
+    let mut fps_printed = false;
+    let base_title = "Parkan Render Demo (SDL2 + OpenGL)";
 
     'main_loop: loop {
         for event in events.poll_iter() {
@@ -543,14 +642,35 @@ fn run_interactive(
                 a_pos,
                 a_uv,
                 vbo,
+                ebo,
+                vao,
                 texture,
-                vertex_count,
+                index_count,
                 w,
                 h,
                 &mvp,
             );
         }
         window.gl_swap_window();
+
+        fps_frames = fps_frames.saturating_add(1);
+        let elapsed = fps_window_start.elapsed();
+        if elapsed >= Duration::from_millis(500) {
+            let fps = fps_frames as f32 / elapsed.as_secs_f32().max(0.000_1);
+            let frame_time_ms = 1000.0 / fps.max(0.000_1);
+            let _ = window.set_title(&format!(
+                "{base_title} | FPS: {fps:.1} ({frame_time_ms:.2} ms)"
+            ));
+            print!("\rFPS: {fps:.1} ({frame_time_ms:.2} ms)");
+            let _ = std::io::stdout().flush();
+            fps_printed = true;
+            fps_frames = 0;
+            fps_window_start = Instant::now();
+        }
+    }
+
+    if fps_printed {
+        println!();
     }
 
     Ok(())
@@ -584,8 +704,10 @@ unsafe fn draw_frame(
     a_pos: u32,
     a_uv: u32,
     vbo: glow::NativeBuffer,
+    ebo: glow::NativeBuffer,
+    vao: Option<glow::NativeVertexArray>,
     texture: Option<&GpuTexture>,
-    vertex_count: usize,
+    index_count: usize,
     width: u32,
     height: u32,
     mvp: &[f32; 16],
@@ -613,19 +735,33 @@ unsafe fn draw_frame(
         gl.bind_texture(glow::TEXTURE_2D, None);
     }
 
-    gl.bind_buffer(glow::ARRAY_BUFFER, Some(vbo));
+    if let Some(vao) = vao {
-    gl.enable_vertex_attrib_array(a_pos);
+        gl.bind_vertex_array(Some(vao));
-    gl.vertex_attrib_pointer_f32(a_pos, 3, glow::FLOAT, false, 20, 0);
+        gl.draw_elements(
-    gl.enable_vertex_attrib_array(a_uv);
+            glow::TRIANGLES,
-    gl.vertex_attrib_pointer_f32(a_uv, 2, glow::FLOAT, false, 20, 12);
+            index_count.min(i32::MAX as usize) as i32,
-    gl.draw_arrays(
+            glow::UNSIGNED_SHORT,
-        glow::TRIANGLES,
+            0,
-        0,
+        );
-        vertex_count.min(i32::MAX as usize) as i32,
+        gl.bind_vertex_array(None);
-    );
+    } else {
-    gl.disable_vertex_attrib_array(a_uv);
+        gl.bind_buffer(glow::ARRAY_BUFFER, Some(vbo));
-    gl.disable_vertex_attrib_array(a_pos);
+        gl.bind_buffer(glow::ELEMENT_ARRAY_BUFFER, Some(ebo));
-    gl.bind_buffer(glow::ARRAY_BUFFER, None);
+        gl.enable_vertex_attrib_array(a_pos);
+        gl.vertex_attrib_pointer_f32(a_pos, 3, glow::FLOAT, false, 20, 0);
+        gl.enable_vertex_attrib_array(a_uv);
+        gl.vertex_attrib_pointer_f32(a_uv, 2, glow::FLOAT, false, 20, 12);
+        gl.draw_elements(
+            glow::TRIANGLES,
+            index_count.min(i32::MAX as usize) as i32,
+            glow::UNSIGNED_SHORT,
+            0,
+        );
+        gl.disable_vertex_attrib_array(a_uv);
+        gl.disable_vertex_attrib_array(a_pos);
+        gl.bind_buffer(glow::ELEMENT_ARRAY_BUFFER, None);
+        gl.bind_buffer(glow::ARRAY_BUFFER, None);
+    }
     gl.bind_texture(glow::TEXTURE_2D, None);
     gl.use_program(None);
 }
@@ -680,8 +816,13 @@ fn save_png(path: &Path, width: u32, height: u32, rgba: Vec<u8>) -> Result<(), S
         .map_err(|err| format!("failed to save PNG {}: {err}", path.display()))
 }
 
-unsafe fn create_program(gl: &glow::Context) -> Result<glow::NativeProgram, String> {
+unsafe fn create_program(
-    let vs_src = r#"
+    gl: &glow::Context,
+    backend: GlBackend,
+) -> Result<glow::NativeProgram, String> {
+    let (vs_src, fs_src) = match backend {
+        GlBackend::Gles2 => (
+            r#"
 attribute vec3 a_pos;
 attribute vec2 a_uv;
 uniform mat4 u_mvp;
@@ -690,9 +831,8 @@ void main() {
     v_uv = a_uv;
     gl_Position = u_mvp * vec4(a_pos, 1.0);
 }
-"#;
+"#,
-
+            r#"
-    let fs_src = r#"
 precision mediump float;
 uniform sampler2D u_tex;
 uniform float u_use_tex;
@@ -702,7 +842,32 @@ void main() {
     vec4 texColor = texture2D(u_tex, v_uv);
     gl_FragColor = mix(base, texColor, u_use_tex);
 }
-"#;
+"#,
+        ),
+        GlBackend::Core33 => (
+            r#"#version 330 core
+in vec3 a_pos;
+in vec2 a_uv;
+uniform mat4 u_mvp;
+out vec2 v_uv;
+void main() {
+    v_uv = a_uv;
+    gl_Position = u_mvp * vec4(a_pos, 1.0);
+}
+"#,
+            r#"#version 330 core
+uniform sampler2D u_tex;
+uniform float u_use_tex;
+in vec2 v_uv;
+out vec4 fragColor;
+void main() {
+    vec4 base = vec4(0.85, 0.90, 1.00, 1.0);
+    vec4 texColor = texture(u_tex, v_uv);
+    fragColor = mix(base, texColor, u_use_tex);
+}
+"#,
+        ),
+    };
 
     let program = gl.create_program().map_err(|e| e.to_string())?;
     let vs = gl
@@ -758,6 +923,14 @@ fn f32_slice_to_ne_bytes(slice: &[f32]) -> Vec<u8> {
     out
 }
 
+fn u16_slice_to_ne_bytes(slice: &[u16]) -> Vec<u8> {
+    let mut out = Vec::with_capacity(slice.len().saturating_mul(std::mem::size_of::<u16>()));
+    for &value in slice {
+        out.extend_from_slice(&value.to_ne_bytes());
+    }
+    out
+}
+
 fn mat4_identity() -> [f32; 16] {
     [
         1.0, 0.0, 0.0, 0.0, //

crates/render-mission-demo/Cargo.toml

@@ -0,0 +1,33 @@
+[package]
+name = "render-mission-demo"
+version = "0.1.0"
+edition = "2021"
+
+[features]
+default = []
+demo = ["dep:sdl2", "dep:glow"]
+
+[dependencies]
+encoding_rs = "0.8"
+glow = { version = "0.16", optional = true }
+nres = { path = "../nres" }
+render-core = { path = "../render-core" }
+render-demo = { path = "../render-demo" }
+tma = { path = "../tma" }
+terrain-core = { path = "../terrain-core" }
+texm = { path = "../texm" }
+unitdat = { path = "../unitdat" }
+
+[dev-dependencies]
+common = { path = "../common" }
+
+[target.'cfg(target_os = "macos")'.dependencies]
+sdl2 = { version = "0.37", optional = true, default-features = false, features = ["use-pkgconfig"] }
+
+[target.'cfg(not(target_os = "macos"))'.dependencies]
+sdl2 = { version = "0.37", optional = true, default-features = false, features = ["bundled", "static-link"] }
+
+[[bin]]
+name = "parkan-render-mission-demo"
+path = "src/main.rs"
+required-features = ["demo"]

crates/render-mission-demo/src/lib.rs

@@ -0,0 +1,881 @@
+use encoding_rs::WINDOWS_1251;
+use nres::Archive;
+use render_core::{build_render_mesh, RenderMesh};
+use render_demo::{load_model_with_name_from_archive, resolve_texture_for_model, LoadedTexture};
+use std::collections::HashMap;
+use std::fmt;
+use std::fs;
+use std::path::{Path, PathBuf};
+use terrain_core::TerrainMesh;
+use tma::MissionFile;
+
+const MAT0_KIND: u32 = 0x3054_414D;
+const MESH_KIND: u32 = 0x4853_454D;
+const OBJECT_REF_STRIDE: usize = 64;
+const OBJECT_REF_ARCHIVE_BYTES: usize = 32;
+
+pub type Result<T> = core::result::Result<T, Error>;
+
+#[derive(Debug)]
+pub enum Error {
+    Io(std::io::Error),
+    Mission(tma::Error),
+    Terrain(terrain_core::Error),
+    UnitDat(unitdat::Error),
+    RenderDemo(render_demo::Error),
+    Nres(nres::error::Error),
+    Texm(texm::error::Error),
+    InvalidMapPath(String),
+    GameRootNotFound(PathBuf),
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::Io(err) => write!(f, "{err}"),
+            Self::Mission(err) => write!(f, "{err}"),
+            Self::Terrain(err) => write!(f, "{err}"),
+            Self::UnitDat(err) => write!(f, "{err}"),
+            Self::RenderDemo(err) => write!(f, "{err}"),
+            Self::Nres(err) => write!(f, "{err}"),
+            Self::Texm(err) => write!(f, "{err}"),
+            Self::InvalidMapPath(path) => write!(f, "invalid mission map path: {path}"),
+            Self::GameRootNotFound(path) => {
+                write!(
+                    f,
+                    "failed to detect game root from mission path {}",
+                    path.display()
+                )
+            }
+        }
+    }
+}
+
+impl std::error::Error for Error {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        match self {
+            Self::Io(err) => Some(err),
+            Self::Mission(err) => Some(err),
+            Self::Terrain(err) => Some(err),
+            Self::UnitDat(err) => Some(err),
+            Self::RenderDemo(err) => Some(err),
+            Self::Nres(err) => Some(err),
+            Self::Texm(err) => Some(err),
+            Self::InvalidMapPath(_) | Self::GameRootNotFound(_) => None,
+        }
+    }
+}
+
+impl From<std::io::Error> for Error {
+    fn from(value: std::io::Error) -> Self {
+        Self::Io(value)
+    }
+}
+
+impl From<tma::Error> for Error {
+    fn from(value: tma::Error) -> Self {
+        Self::Mission(value)
+    }
+}
+
+impl From<terrain_core::Error> for Error {
+    fn from(value: terrain_core::Error) -> Self {
+        Self::Terrain(value)
+    }
+}
+
+impl From<unitdat::Error> for Error {
+    fn from(value: unitdat::Error) -> Self {
+        Self::UnitDat(value)
+    }
+}
+
+impl From<render_demo::Error> for Error {
+    fn from(value: render_demo::Error) -> Self {
+        Self::RenderDemo(value)
+    }
+}
+
+impl From<nres::error::Error> for Error {
+    fn from(value: nres::error::Error) -> Self {
+        Self::Nres(value)
+    }
+}
+
+impl From<texm::error::Error> for Error {
+    fn from(value: texm::error::Error) -> Self {
+        Self::Texm(value)
+    }
+}
+
+#[derive(Copy, Clone, Debug)]
+pub struct LoadOptions {
+    pub load_model_textures: bool,
+    pub load_terrain_texture: bool,
+}
+
+impl Default for LoadOptions {
+    fn default() -> Self {
+        Self {
+            load_model_textures: true,
+            load_terrain_texture: true,
+        }
+    }
+}
+
+#[derive(Clone, Debug)]
+pub struct MissionScene {
+    pub game_root: PathBuf,
+    pub mission_path: PathBuf,
+    pub mission: MissionFile,
+    pub map_folder_rel: PathBuf,
+    pub land_msh_path: PathBuf,
+    pub terrain: TerrainMesh,
+    pub terrain_texture: Option<LoadedTexture>,
+    pub models: Vec<SceneModel>,
+    pub skipped_objects: usize,
+}
+
+#[derive(Clone, Debug)]
+pub struct SceneModel {
+    pub archive_path: PathBuf,
+    pub model_name: String,
+    pub mesh: RenderMesh,
+    pub texture: Option<LoadedTexture>,
+    pub instances: Vec<ModelInstance>,
+}
+
+#[derive(Copy, Clone, Debug)]
+pub struct ModelInstance {
+    pub position: [f32; 3],
+    pub yaw_rad: f32,
+    pub scale: [f32; 3],
+}
+
+#[derive(Clone, Debug)]
+struct ObjectPrototype {
+    archive_path: PathBuf,
+    model_name: String,
+}
+
+#[derive(Clone, Debug)]
+struct ObjectRef {
+    archive_name: String,
+    resource_name: String,
+}
+
+#[derive(Clone, Debug, Hash, PartialEq, Eq)]
+struct ModelKey {
+    archive_path: PathBuf,
+    model_name: String,
+}
+
+pub fn detect_game_root_from_mission_path(mission_path: &Path) -> Option<PathBuf> {
+    let mut cursor = mission_path.parent();
+    while let Some(dir) = cursor {
+        if dir.join("DATA").is_dir() && dir.join("objects.rlb").is_file() {
+            return Some(dir.to_path_buf());
+        }
+        cursor = dir.parent();
+    }
+    None
+}
+
+pub fn load_scene(
+    game_root: impl AsRef<Path>,
+    mission_path: impl AsRef<Path>,
+) -> Result<MissionScene> {
+    load_scene_with_options(game_root, mission_path, LoadOptions::default())
+}
+
+pub fn load_scene_with_options(
+    game_root: impl AsRef<Path>,
+    mission_path: impl AsRef<Path>,
+    options: LoadOptions,
+) -> Result<MissionScene> {
+    let game_root = game_root.as_ref().to_path_buf();
+    let mission_path = mission_path.as_ref().to_path_buf();
+
+    let mission = tma::parse_path(&mission_path)?;
+    let map_folder_rel = map_folder_from_footer(&mission.footer.map_path)?;
+    let land_msh_path = game_root.join(&map_folder_rel).join("Land.msh");
+    let terrain = terrain_core::load_land_mesh(&land_msh_path)?;
+    let terrain_texture = if options.load_terrain_texture {
+        resolve_terrain_texture(&game_root, &map_folder_rel)?
+    } else {
+        None
+    };
+
+    let mut grouped_instances: HashMap<ModelKey, Vec<ModelInstance>> = HashMap::new();
+    let mut prototype_cache: HashMap<String, Option<ObjectPrototype>> = HashMap::new();
+    let mut skipped = 0usize;
+
+    for object in &mission.objects {
+        let cache_key = object.resource_name.to_ascii_lowercase();
+        let proto = if let Some(cached) = prototype_cache.get(&cache_key) {
+            cached.clone()
+        } else {
+            let resolved = resolve_object_prototype(&game_root, object)?;
+            prototype_cache.insert(cache_key, resolved.clone());
+            resolved
+        };
+
+        let Some(proto) = proto else {
+            skipped += 1;
+            continue;
+        };
+
+        let instance = ModelInstance {
+            position: object.position,
+            yaw_rad: object.orientation[2],
+            scale: normalize_scale(object.scale),
+        };
+
+        grouped_instances
+            .entry(ModelKey {
+                archive_path: proto.archive_path,
+                model_name: proto.model_name,
+            })
+            .or_default()
+            .push(instance);
+    }
+
+    let mut models = Vec::new();
+    for (key, instances) in grouped_instances {
+        let loaded =
+            match load_model_with_name_from_archive(&key.archive_path, Some(&key.model_name)) {
+                Ok(v) => v,
+                Err(_) => {
+                    skipped += instances.len();
+                    continue;
+                }
+            };
+
+        let mesh = build_render_mesh(&loaded.model, 0, 0);
+        if mesh.indices.is_empty() {
+            skipped += instances.len();
+            continue;
+        }
+
+        let texture = if options.load_model_textures {
+            resolve_texture_for_model(&key.archive_path, &loaded.name, None, None, None, None)
+                .ok()
+                .flatten()
+        } else {
+            None
+        };
+
+        models.push(SceneModel {
+            archive_path: key.archive_path,
+            model_name: loaded.name,
+            mesh,
+            texture,
+            instances,
+        });
+    }
+
+    models.sort_by(|a, b| a.model_name.cmp(&b.model_name));
+
+    Ok(MissionScene {
+        game_root,
+        mission_path,
+        mission,
+        map_folder_rel,
+        land_msh_path,
+        terrain,
+        terrain_texture,
+        models,
+        skipped_objects: skipped,
+    })
+}
+
+pub fn compute_scene_bounds(scene: &MissionScene) -> Option<([f32; 3], [f32; 3])> {
+    let mut min_v = [f32::INFINITY; 3];
+    let mut max_v = [f32::NEG_INFINITY; 3];
+    let mut any = false;
+
+    for pos in &scene.terrain.positions {
+        merge_bounds(&mut min_v, &mut max_v, *pos);
+        any = true;
+    }
+
+    for model in &scene.models {
+        for instance in &model.instances {
+            merge_bounds(&mut min_v, &mut max_v, instance.position);
+            any = true;
+        }
+    }
+
+    any.then_some((min_v, max_v))
+}
+
+fn merge_bounds(min_v: &mut [f32; 3], max_v: &mut [f32; 3], p: [f32; 3]) {
+    for i in 0..3 {
+        if p[i] < min_v[i] {
+            min_v[i] = p[i];
+        }
+        if p[i] > max_v[i] {
+            max_v[i] = p[i];
+        }
+    }
+}
+
+fn normalize_scale(scale: [f32; 3]) -> [f32; 3] {
+    let mut out = scale;
+    for item in &mut out {
+        if !item.is_finite() || item.abs() < 0.000_1 {
+            *item = 1.0;
+        }
+    }
+    out
+}
+
+fn map_folder_from_footer(map_path: &str) -> Result<PathBuf> {
+    let mut parts = split_relative_path(map_path);
+    if parts.len() < 2 {
+        return Err(Error::InvalidMapPath(map_path.to_string()));
+    }
+    parts.pop(); // remove 'land'
+
+    let mut out = PathBuf::new();
+    for part in parts {
+        out.push(part);
+    }
+    Ok(out)
+}
+
+fn resolve_object_prototype(
+    game_root: &Path,
+    object: &tma::MissionObject,
+) -> Result<Option<ObjectPrototype>> {
+    if object.resource_name.to_ascii_lowercase().ends_with(".dat") {
+        let dat_path = game_root.join(pathbuf_from_rel(&object.resource_name));
+        if !dat_path.is_file() {
+            return Ok(None);
+        }
+
+        let parsed = unitdat::parse_path(&dat_path)?;
+        let archive_path = game_root.join(pathbuf_from_rel(&parsed.archive_name));
+        if !archive_path.is_file() {
+            return Ok(None);
+        }
+        return resolve_archive_model(game_root, &archive_path, &parsed.model_key);
+    }
+
+    let archive_path = game_root.join("objects.rlb");
+    if !archive_path.is_file() {
+        return Ok(None);
+    }
+    resolve_archive_model(game_root, &archive_path, &object.resource_name)
+}
+
+fn resolve_archive_model(
+    game_root: &Path,
+    archive_path: &Path,
+    model_key: &str,
+) -> Result<Option<ObjectPrototype>> {
+    if !archive_path.is_file() {
+        return Ok(None);
+    }
+
+    if is_objects_registry_archive(archive_path) {
+        if let Some(proto) = resolve_objects_registry_model(game_root, archive_path, model_key)? {
+            return Ok(Some(proto));
+        }
+    }
+
+    let model_name = ensure_msh_suffix(model_key);
+    if !archive_has_mesh_entry(archive_path, &model_name)? {
+        return Ok(None);
+    }
+
+    Ok(Some(ObjectPrototype {
+        archive_path: archive_path.to_path_buf(),
+        model_name: model_name.to_ascii_lowercase(),
+    }))
+}
+
+fn is_objects_registry_archive(archive_path: &Path) -> bool {
+    archive_path
+        .file_name()
+        .and_then(|name| name.to_str())
+        .is_some_and(|name| name.eq_ignore_ascii_case("objects.rlb"))
+}
+
+fn resolve_objects_registry_model(
+    game_root: &Path,
+    registry_archive_path: &Path,
+    object_key: &str,
+) -> Result<Option<ObjectPrototype>> {
+    let archive = Archive::open_path(registry_archive_path)?;
+    let Some(entry_id) = find_registry_entry_id(&archive, object_key) else {
+        return Ok(None);
+    };
+
+    let payload = archive.read(entry_id)?.into_owned();
+    let refs = parse_object_refs(&payload);
+    if refs.is_empty() {
+        return Ok(None);
+    }
+
+    for item in refs
+        .iter()
+        .filter(|item| has_extension(&item.resource_name, "msh"))
+    {
+        if let Some(proto) = resolve_object_ref_model(game_root, item, &item.resource_name)? {
+            return Ok(Some(proto));
+        }
+    }
+
+    for item in refs
+        .iter()
+        .filter(|item| has_extension(&item.resource_name, "bas"))
+    {
+        let Some(stem) = Path::new(&item.resource_name)
+            .file_stem()
+            .and_then(|stem| stem.to_str())
+        else {
+            continue;
+        };
+        if stem.is_empty() {
+            continue;
+        }
+        let candidate = format!("{stem}.msh");
+        if let Some(proto) = resolve_object_ref_model(game_root, item, &candidate)? {
+            return Ok(Some(proto));
+        }
+    }
+
+    Ok(None)
+}
+
+fn find_registry_entry_id(archive: &Archive, object_key: &str) -> Option<nres::EntryId> {
+    mesh_name_candidates(object_key)
+        .into_iter()
+        .find_map(|candidate| archive.find(&candidate))
+}
+
+fn resolve_object_ref_model(
+    game_root: &Path,
+    item: &ObjectRef,
+    model_name: &str,
+) -> Result<Option<ObjectPrototype>> {
+    let archive_path = game_root.join(pathbuf_from_rel(&item.archive_name));
+    if !archive_path.is_file() {
+        return Ok(None);
+    }
+    if !archive_has_mesh_entry(&archive_path, model_name)? {
+        return Ok(None);
+    }
+
+    Ok(Some(ObjectPrototype {
+        archive_path,
+        model_name: model_name.to_ascii_lowercase(),
+    }))
+}
+
+fn parse_object_refs(payload: &[u8]) -> Vec<ObjectRef> {
+    if !payload.len().is_multiple_of(OBJECT_REF_STRIDE) {
+        return Vec::new();
+    }
+
+    let mut refs = Vec::with_capacity(payload.len() / OBJECT_REF_STRIDE);
+    for chunk in payload.chunks_exact(OBJECT_REF_STRIDE) {
+        let archive_name = decode_cp1251_cstr(&chunk[..OBJECT_REF_ARCHIVE_BYTES]);
+        let resource_name = decode_cp1251_cstr(&chunk[OBJECT_REF_ARCHIVE_BYTES..]);
+        if archive_name.is_empty() || resource_name.is_empty() {
+            continue;
+        }
+        refs.push(ObjectRef {
+            archive_name,
+            resource_name,
+        });
+    }
+    refs
+}
+
+fn archive_has_mesh_entry(archive_path: &Path, requested_name: &str) -> Result<bool> {
+    let archive = Archive::open_path(archive_path)?;
+    Ok(find_mesh_entry_id(&archive, requested_name).is_some())
+}
+
+fn find_mesh_entry_id(archive: &Archive, requested_name: &str) -> Option<nres::EntryId> {
+    for candidate in mesh_name_candidates(requested_name) {
+        let Some(id) = archive.find(&candidate) else {
+            continue;
+        };
+        let Some(entry) = archive.get(id) else {
+            continue;
+        };
+        if entry.meta.kind == MESH_KIND || has_extension(&entry.meta.name, "msh") {
+            return Some(id);
+        }
+    }
+    None
+}
+
+fn mesh_name_candidates(name: &str) -> Vec<String> {
+    let mut out = Vec::new();
+    let trimmed = name.trim();
+    if trimmed.is_empty() {
+        return out;
+    }
+
+    push_unique_string(&mut out, trimmed.to_string());
+    if let Some(stem) = trimmed
+        .strip_suffix(".msh")
+        .or_else(|| trimmed.strip_suffix(".MSH"))
+    {
+        if !stem.is_empty() {
+            push_unique_string(&mut out, stem.to_string());
+        }
+    } else {
+        push_unique_string(&mut out, format!("{trimmed}.msh"));
+    }
+
+    out
+}
+
+fn push_unique_string(items: &mut Vec<String>, value: String) {
+    if !items.iter().any(|item| item.eq_ignore_ascii_case(&value)) {
+        items.push(value);
+    }
+}
+
+fn ensure_msh_suffix(name: &str) -> String {
+    let trimmed = name.trim();
+    if trimmed.to_ascii_lowercase().ends_with(".msh") {
+        trimmed.to_string()
+    } else {
+        format!("{trimmed}.msh")
+    }
+}
+
+fn has_extension(name: &str, ext: &str) -> bool {
+    Path::new(name)
+        .extension()
+        .and_then(|value| value.to_str())
+        .is_some_and(|value| value.eq_ignore_ascii_case(ext))
+}
+
+fn resolve_terrain_texture(
+    game_root: &Path,
+    map_folder_rel: &Path,
+) -> Result<Option<LoadedTexture>> {
+    let material_archive_path = game_root.join("material.lib");
+    let texture_archive_path = game_root.join("textures.lib");
+    if !material_archive_path.is_file() || !texture_archive_path.is_file() {
+        return Ok(None);
+    }
+
+    for wear_name in ["Land1.wea", "Land2.wea"] {
+        let wear_path = game_root.join(map_folder_rel).join(wear_name);
+        if !wear_path.is_file() {
+            continue;
+        }
+        let wear_payload = fs::read(&wear_path)?;
+        let Some(material_name) = parse_primary_material_from_wear(&wear_payload) else {
+            continue;
+        };
+        let Some(texture_name) =
+            resolve_texture_name_from_material_archive(&material_archive_path, &material_name)?
+        else {
+            continue;
+        };
+        if let Some(texture) = load_texm_by_name(&texture_archive_path, &texture_name)? {
+            return Ok(Some(texture));
+        }
+    }
+
+    Ok(None)
+}
+
+fn parse_primary_material_from_wear(bytes: &[u8]) -> Option<String> {
+    let text = decode_cp1251(bytes).replace('\r', "");
+    let mut lines = text.lines();
+    let count = lines.next()?.trim().parse::<usize>().ok()?;
+    if count == 0 {
+        return None;
+    }
+
+    for line in lines.take(count) {
+        let mut parts = line.split_whitespace();
+        let _legacy = parts.next()?;
+        let name = parts.next()?;
+        if !name.is_empty() {
+            return Some(name.to_string());
+        }
+    }
+    None
+}
+
+fn resolve_texture_name_from_material_archive(
+    archive_path: &Path,
+    material_name: &str,
+) -> Result<Option<String>> {
+    let archive = Archive::open_path(archive_path)?;
+
+    let entry = if let Some(id) = archive.find(material_name) {
+        archive
+            .get(id)
+            .filter(|entry| entry.meta.kind == MAT0_KIND)
+            .or_else(|| {
+                archive
+                    .find("DEFAULT")
+                    .and_then(|id| archive.get(id))
+                    .filter(|entry| entry.meta.kind == MAT0_KIND)
+            })
+    } else {
+        archive
+            .find("DEFAULT")
+            .and_then(|id| archive.get(id))
+            .filter(|entry| entry.meta.kind == MAT0_KIND)
+    }
+    .or_else(|| archive.entries().find(|entry| entry.meta.kind == MAT0_KIND));
+
+    let Some(entry) = entry else {
+        return Ok(None);
+    };
+
+    let payload = archive.read(entry.id)?.into_owned();
+    parse_primary_texture_name_from_mat0(&payload, entry.meta.attr2)
+}
+
+fn parse_primary_texture_name_from_mat0(payload: &[u8], attr2: u32) -> Result<Option<String>> {
+    if payload.len() < 4 {
+        return Ok(None);
+    }
+
+    let phase_count = u16::from_le_bytes([payload[0], payload[1]]) as usize;
+    if phase_count == 0 {
+        return Ok(None);
+    }
+
+    let mut offset = 4usize;
+    if attr2 >= 2 {
+        offset = offset.saturating_add(2);
+    }
+    if attr2 >= 3 {
+        offset = offset.saturating_add(4);
+    }
+    if attr2 >= 4 {
+        offset = offset.saturating_add(4);
+    }
+
+    for phase in 0..phase_count {
+        let phase_off = offset.saturating_add(phase.saturating_mul(34));
+        let Some(rec) = payload.get(phase_off..phase_off + 34) else {
+            break;
+        };
+        let name_raw = &rec[18..34];
+        let end = name_raw
+            .iter()
+            .position(|&b| b == 0)
+            .unwrap_or(name_raw.len());
+        let name = decode_cp1251(&name_raw[..end]).trim().to_string();
+        if !name.is_empty() {
+            return Ok(Some(name));
+        }
+    }
+
+    Ok(None)
+}
+
+fn load_texm_by_name(archive_path: &Path, texture_name: &str) -> Result<Option<LoadedTexture>> {
+    let archive = Archive::open_path(archive_path)?;
+    let Some(id) = archive.find(texture_name) else {
+        return Ok(None);
+    };
+    let Some(entry) = archive.get(id) else {
+        return Ok(None);
+    };
+    if entry.meta.kind != texm::TEXM_MAGIC {
+        return Ok(None);
+    }
+
+    let payload = archive.read(id)?.into_owned();
+    let parsed = texm::parse_texm(&payload)?;
+    let decoded = texm::decode_mip_rgba8(&parsed, &payload, 0)?;
+
+    Ok(Some(LoadedTexture {
+        name: entry.meta.name.clone(),
+        width: decoded.width,
+        height: decoded.height,
+        rgba8: decoded.rgba8,
+    }))
+}
+
+fn split_relative_path(path: &str) -> Vec<&str> {
+    path.split(['\\', '/'])
+        .filter(|part| !part.is_empty())
+        .collect()
+}
+
+fn pathbuf_from_rel(path: &str) -> PathBuf {
+    let mut out = PathBuf::new();
+    for part in split_relative_path(path) {
+        out.push(part);
+    }
+    out
+}
+
+fn decode_cp1251_cstr(bytes: &[u8]) -> String {
+    let end = bytes.iter().position(|&b| b == 0).unwrap_or(bytes.len());
+    let (decoded, _, _) = WINDOWS_1251.decode(&bytes[..end]);
+    decoded.trim().to_string()
+}
+
+fn decode_cp1251(bytes: &[u8]) -> String {
+    let (decoded, _, _) = WINDOWS_1251.decode(bytes);
+    decoded.into_owned()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::path::Path;
+
+    fn game_root() -> Option<PathBuf> {
+        let root = Path::new(env!("CARGO_MANIFEST_DIR"))
+            .join("..")
+            .join("..")
+            .join("testdata")
+            .join("Parkan - Iron Strategy");
+        root.is_dir().then_some(root)
+    }
+
+    #[test]
+    fn detects_game_root_from_mission_path() {
+        let Some(root) = game_root() else {
+            eprintln!("skipping: game root missing");
+            return;
+        };
+
+        let mission = root
+            .join("MISSIONS")
+            .join("CAMPAIGN")
+            .join("CAMPAIGN.00")
+            .join("Mission.01")
+            .join("data.tma");
+        if !mission.is_file() {
+            eprintln!("skipping missing mission sample");
+            return;
+        }
+
+        let detected = detect_game_root_from_mission_path(&mission)
+            .expect("failed to detect game root from mission path");
+        assert_eq!(detected, root);
+    }
+
+    #[test]
+    fn loads_scene_cpu_without_textures() {
+        let Some(root) = game_root() else {
+            eprintln!("skipping: game root missing");
+            return;
+        };
+
+        let mission = root
+            .join("MISSIONS")
+            .join("CAMPAIGN")
+            .join("CAMPAIGN.00")
+            .join("Mission.01")
+            .join("data.tma");
+        if !mission.is_file() {
+            eprintln!("skipping missing mission sample");
+            return;
+        }
+
+        let scene = load_scene_with_options(
+            &root,
+            &mission,
+            LoadOptions {
+                load_model_textures: false,
+                load_terrain_texture: false,
+            },
+        )
+        .unwrap_or_else(|err| panic!("failed to load scene {}: {err}", mission.display()));
+
+        assert!(!scene.terrain.positions.is_empty());
+        assert!(!scene.terrain.faces.is_empty());
+        assert!(!scene.models.is_empty());
+
+        let instance_count = scene
+            .models
+            .iter()
+            .map(|model| model.instances.len())
+            .sum::<usize>();
+        assert!(instance_count >= 10);
+
+        let bounds = compute_scene_bounds(&scene).expect("scene bounds should exist");
+        assert!(bounds.0[0] <= bounds.1[0]);
+        assert!(bounds.0[1] <= bounds.1[1]);
+        assert!(bounds.0[2] <= bounds.1[2]);
+    }
+
+    #[test]
+    fn loads_scene_with_textures() {
+        let Some(root) = game_root() else {
+            eprintln!("skipping: game root missing");
+            return;
+        };
+
+        let mission = root
+            .join("MISSIONS")
+            .join("CAMPAIGN")
+            .join("CAMPAIGN.00")
+            .join("Mission.01")
+            .join("data.tma");
+        if !mission.is_file() {
+            eprintln!("skipping missing mission sample");
+            return;
+        }
+
+        let scene = load_scene_with_options(&root, &mission, LoadOptions::default())
+            .unwrap_or_else(|err| panic!("failed to load textured scene {}: {err}", mission.display()));
+
+        assert!(!scene.models.is_empty());
+        let textured_models = scene.models.iter().filter(|model| model.texture.is_some()).count();
+        assert!(textured_models > 0, "no model textures resolved");
+        assert!(scene.terrain_texture.is_some(), "terrain texture was not resolved");
+    }
+
+    #[test]
+    fn resolves_objects_registry_models() {
+        let Some(root) = game_root() else {
+            eprintln!("skipping: game root missing");
+            return;
+        };
+
+        let registry = root.join("objects.rlb");
+        if !registry.is_file() {
+            eprintln!("skipping missing objects.rlb");
+            return;
+        }
+
+        let cases = [
+            ("r_h_01", "bases.rlb", "r_h_01.msh"),
+            ("s_tree_04", "static.rlb", "s_tree_0_04.msh"),
+            ("fr_m_brige", "fortif.rlb", "fr_m_brige.msh"),
+        ];
+
+        for (key, archive_name, model_name) in cases {
+            let proto = resolve_objects_registry_model(&root, &registry, key)
+                .unwrap_or_else(|err| panic!("failed to resolve '{key}' from objects.rlb: {err}"))
+                .unwrap_or_else(|| panic!("missing model resolution for '{key}'"));
+
+            let got_archive = proto
+                .archive_path
+                .file_name()
+                .and_then(|name| name.to_str())
+                .map(|name| name.to_ascii_lowercase())
+                .unwrap_or_default();
+            assert_eq!(got_archive, archive_name.to_ascii_lowercase());
+            assert!(
+                proto.model_name.eq_ignore_ascii_case(model_name),
+                "unexpected model for key '{key}': got '{}', expected '{}'",
+                proto.model_name,
+                model_name
+            );
+        }
+    }
+}

crates/render-mission-demo/src/main.rs

@@ -0,0 +1,924 @@
+use glow::HasContext as _;
+use render_mission_demo::{
+    compute_scene_bounds, detect_game_root_from_mission_path, load_scene_with_options, LoadOptions,
+    MissionScene, ModelInstance,
+};
+use std::io::Write as _;
+use std::path::PathBuf;
+use std::time::{Duration, Instant};
+
+struct Args {
+    mission: PathBuf,
+    game_root: Option<PathBuf>,
+    width: u32,
+    height: u32,
+    fov_deg: f32,
+    no_model_texture: bool,
+    no_terrain_texture: bool,
+}
+
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+enum GlBackend {
+    Gles2,
+    Core33,
+}
+
+struct GpuTexture {
+    handle: glow::NativeTexture,
+}
+
+struct GpuRenderable {
+    vbo: glow::NativeBuffer,
+    ebo: glow::NativeBuffer,
+    index_count: usize,
+    texture: Option<GpuTexture>,
+}
+
+struct ModelRenderable {
+    gpu: GpuRenderable,
+    instances: Vec<ModelInstance>,
+}
+
+#[derive(Copy, Clone, Debug)]
+struct Camera {
+    position: [f32; 3],
+    yaw: f32,
+    pitch: f32,
+    move_speed: f32,
+    mouse_sensitivity: f32,
+}
+
+fn parse_args() -> Result<Args, String> {
+    let mut mission = None;
+    let mut game_root = None;
+    let mut width = 1600u32;
+    let mut height = 900u32;
+    let mut fov_deg = 60.0f32;
+    let mut no_model_texture = false;
+    let mut no_terrain_texture = false;
+
+    let mut it = std::env::args().skip(1);
+    while let Some(arg) = it.next() {
+        match arg.as_str() {
+            "--mission" => {
+                let value = it
+                    .next()
+                    .ok_or_else(|| String::from("missing value for --mission"))?;
+                mission = Some(PathBuf::from(value));
+            }
+            "--game-root" => {
+                let value = it
+                    .next()
+                    .ok_or_else(|| String::from("missing value for --game-root"))?;
+                game_root = Some(PathBuf::from(value));
+            }
+            "--width" => {
+                let value = it
+                    .next()
+                    .ok_or_else(|| String::from("missing value for --width"))?;
+                width = value
+                    .parse::<u32>()
+                    .map_err(|_| String::from("invalid --width value"))?;
+                if width == 0 {
+                    return Err(String::from("--width must be > 0"));
+                }
+            }
+            "--height" => {
+                let value = it
+                    .next()
+                    .ok_or_else(|| String::from("missing value for --height"))?;
+                height = value
+                    .parse::<u32>()
+                    .map_err(|_| String::from("invalid --height value"))?;
+                if height == 0 {
+                    return Err(String::from("--height must be > 0"));
+                }
+            }
+            "--fov" => {
+                let value = it
+                    .next()
+                    .ok_or_else(|| String::from("missing value for --fov"))?;
+                fov_deg = value
+                    .parse::<f32>()
+                    .map_err(|_| String::from("invalid --fov value"))?;
+                if !(1.0..=179.0).contains(&fov_deg) {
+                    return Err(String::from("--fov must be in range [1, 179]"));
+                }
+            }
+            "--no-model-texture" => {
+                no_model_texture = true;
+            }
+            "--no-terrain-texture" => {
+                no_terrain_texture = true;
+            }
+            "--help" | "-h" => {
+                print_help();
+                std::process::exit(0);
+            }
+            other => {
+                return Err(format!("unknown argument: {other}"));
+            }
+        }
+    }
+
+    let mission = mission.ok_or_else(|| String::from("missing required --mission"))?;
+    Ok(Args {
+        mission,
+        game_root,
+        width,
+        height,
+        fov_deg,
+        no_model_texture,
+        no_terrain_texture,
+    })
+}
+
+fn print_help() {
+    eprintln!("parkan-render-mission-demo --mission <path/to/data.tma> [--game-root <path>] [--width W] [--height H] [--fov DEG]");
+    eprintln!("                          [--no-model-texture] [--no-terrain-texture]");
+    eprintln!("controls: arrows/WASD move, PageUp/PageDown vertical move, Right Mouse drag look, Shift speed-up, Esc exit");
+}
+
+fn main() {
+    let args = match parse_args() {
+        Ok(v) => v,
+        Err(err) => {
+            eprintln!("{err}");
+            print_help();
+            std::process::exit(2);
+        }
+    };
+
+    if let Err(err) = run(args) {
+        eprintln!("{err}");
+        std::process::exit(1);
+    }
+}
+
+fn run(args: Args) -> Result<(), String> {
+    let game_root = if let Some(path) = args.game_root.clone() {
+        path
+    } else {
+        detect_game_root_from_mission_path(&args.mission).ok_or_else(|| {
+            format!(
+                "failed to detect game root from mission path {} (use --game-root)",
+                args.mission.display()
+            )
+        })?
+    };
+
+    let scene = load_scene_with_options(
+        &game_root,
+        &args.mission,
+        LoadOptions {
+            load_model_textures: !args.no_model_texture,
+            load_terrain_texture: !args.no_terrain_texture,
+        },
+    )
+    .map_err(|err| format!("failed to load mission scene: {err}"))?;
+
+    let terrain_mesh = terrain_core::build_render_mesh(&scene.terrain)
+        .map_err(|err| format!("failed to build terrain render mesh: {err}"))?;
+
+    let instance_count = scene
+        .models
+        .iter()
+        .map(|model| model.instances.len())
+        .sum::<usize>();
+    println!(
+        "mission loaded: map='{}', terrain_vertices={}, terrain_faces={}, models={}, instances={}, skipped={}",
+        scene.mission.footer.map_path,
+        scene.terrain.positions.len(),
+        scene.terrain.faces.len(),
+        scene.models.len(),
+        instance_count,
+        scene.skipped_objects
+    );
+
+    let sdl = sdl2::init().map_err(|err| format!("failed to init SDL2: {err}"))?;
+    let video = sdl
+        .video()
+        .map_err(|err| format!("failed to init SDL2 video: {err}"))?;
+
+    let (mut window, _gl_ctx, gl_backend) =
+        create_window_and_context(&video, args.width, args.height)?;
+    let _ = video.gl_set_swap_interval(1);
+
+    let gl = unsafe {
+        glow::Context::from_loader_function(|name| video.gl_get_proc_address(name) as *const _)
+    };
+
+    let program = unsafe { create_program(&gl, gl_backend)? };
+    let u_mvp = unsafe { gl.get_uniform_location(program, "u_mvp") };
+    let u_use_tex = unsafe { gl.get_uniform_location(program, "u_use_tex") };
+    let u_tex = unsafe { gl.get_uniform_location(program, "u_tex") };
+    let a_pos = unsafe { gl.get_attrib_location(program, "a_pos") }
+        .ok_or_else(|| String::from("shader attribute a_pos is missing"))?;
+    let a_uv = unsafe { gl.get_attrib_location(program, "a_uv") }
+        .ok_or_else(|| String::from("shader attribute a_uv is missing"))?;
+
+    let terrain_gpu =
+        unsafe { upload_terrain_renderable(&gl, &terrain_mesh, scene.terrain_texture.as_ref())? };
+
+    let mut model_gpus = Vec::new();
+    for model in &scene.models {
+        let renderable = unsafe { upload_model_renderable(&gl, model)? };
+        model_gpus.push(renderable);
+    }
+
+    let (scene_center, scene_radius) = initial_scene_sphere(&scene);
+    let mut camera = Camera {
+        position: [
+            scene_center[0],
+            scene_center[1] + scene_radius * 0.6,
+            scene_center[2] + scene_radius * 1.4,
+        ],
+        yaw: std::f32::consts::PI,
+        pitch: -0.28,
+        move_speed: (scene_radius * 0.55).max(60.0),
+        mouse_sensitivity: 0.005,
+    };
+
+    let mut events = sdl
+        .event_pump()
+        .map_err(|err| format!("failed to get SDL event pump: {err}"))?;
+    let mut last = Instant::now();
+    let mut fps_window_start = Instant::now();
+    let mut fps_frames = 0u32;
+    let mut fps_printed = false;
+    let mut mouse_look = false;
+
+    'main_loop: loop {
+        for event in events.poll_iter() {
+            match event {
+                sdl2::event::Event::Quit { .. } => break 'main_loop,
+                sdl2::event::Event::KeyDown {
+                    keycode: Some(sdl2::keyboard::Keycode::Escape),
+                    ..
+                } => break 'main_loop,
+                sdl2::event::Event::MouseButtonDown {
+                    mouse_btn: sdl2::mouse::MouseButton::Right,
+                    ..
+                } => {
+                    mouse_look = true;
+                    sdl.mouse().set_relative_mouse_mode(true);
+                }
+                sdl2::event::Event::MouseButtonUp {
+                    mouse_btn: sdl2::mouse::MouseButton::Right,
+                    ..
+                } => {
+                    mouse_look = false;
+                    sdl.mouse().set_relative_mouse_mode(false);
+                }
+                sdl2::event::Event::MouseMotion { xrel, yrel, .. } if mouse_look => {
+                    camera.yaw += xrel as f32 * camera.mouse_sensitivity;
+                    camera.pitch -= yrel as f32 * camera.mouse_sensitivity;
+                    camera.pitch = camera.pitch.clamp(-1.54, 1.54);
+                }
+                _ => {}
+            }
+        }
+
+        let now = Instant::now();
+        let dt = (now - last).as_secs_f32().clamp(0.0, 0.05);
+        last = now;
+
+        update_camera(&events, &mut camera, dt);
+
+        let (w, h) = window.size();
+        let proj = mat4_perspective(
+            args.fov_deg.to_radians(),
+            (w as f32 / h.max(1) as f32).max(0.01),
+            0.1,
+            (scene_radius * 25.0).max(5000.0),
+        );
+        let forward = camera_forward(camera.yaw, camera.pitch);
+        let view = mat4_look_at(
+            camera.position,
+            [
+                camera.position[0] + forward[0],
+                camera.position[1] + forward[1],
+                camera.position[2] + forward[2],
+            ],
+            [0.0, 1.0, 0.0],
+        );
+
+        unsafe {
+            draw_frame_begin(&gl, w, h);
+
+            let terrain_mvp = mat4_mul(&proj, &view);
+            draw_gpu_renderable(
+                &gl,
+                program,
+                u_mvp.as_ref(),
+                u_use_tex.as_ref(),
+                u_tex.as_ref(),
+                a_pos,
+                a_uv,
+                &terrain_gpu,
+                &terrain_mvp,
+            );
+
+            for model in &model_gpus {
+                for instance in &model.instances {
+                    let model_m = model_matrix(instance.position, instance.yaw_rad, instance.scale);
+                    let view_model = mat4_mul(&view, &model_m);
+                    let mvp = mat4_mul(&proj, &view_model);
+                    draw_gpu_renderable(
+                        &gl,
+                        program,
+                        u_mvp.as_ref(),
+                        u_use_tex.as_ref(),
+                        u_tex.as_ref(),
+                        a_pos,
+                        a_uv,
+                        &model.gpu,
+                        &mvp,
+                    );
+                }
+            }
+        }
+
+        window.gl_swap_window();
+
+        fps_frames = fps_frames.saturating_add(1);
+        let elapsed = fps_window_start.elapsed();
+        if elapsed >= Duration::from_millis(500) {
+            let fps = fps_frames as f32 / elapsed.as_secs_f32().max(0.000_1);
+            let frame_time_ms = 1000.0 / fps.max(0.000_1);
+            let _ = window.set_title(&format!(
+                "Parkan Mission Demo | FPS: {fps:.1} ({frame_time_ms:.2} ms) | objects: {instance_count}"
+            ));
+            print!("\rFPS: {fps:.1} ({frame_time_ms:.2} ms)");
+            let _ = std::io::stdout().flush();
+            fps_printed = true;
+            fps_frames = 0;
+            fps_window_start = Instant::now();
+        }
+    }
+
+    if fps_printed {
+        println!();
+    }
+
+    unsafe {
+        cleanup_renderable(&gl, terrain_gpu);
+        for model in model_gpus {
+            cleanup_renderable(&gl, model.gpu);
+        }
+        gl.delete_program(program);
+    }
+
+    Ok(())
+}
+
+fn initial_scene_sphere(scene: &MissionScene) -> ([f32; 3], f32) {
+    if let Some((min_v, max_v)) = compute_scene_bounds(scene) {
+        let center = [
+            0.5 * (min_v[0] + max_v[0]),
+            0.5 * (min_v[1] + max_v[1]),
+            0.5 * (min_v[2] + max_v[2]),
+        ];
+        let extent = [
+            max_v[0] - min_v[0],
+            max_v[1] - min_v[1],
+            max_v[2] - min_v[2],
+        ];
+        let radius = ((extent[0] * extent[0]) + (extent[1] * extent[1]) + (extent[2] * extent[2]))
+            .sqrt()
+            .max(10.0)
+            * 0.5;
+        return (center, radius);
+    }
+    ([0.0, 0.0, 0.0], 100.0)
+}
+
+fn update_camera(events: &sdl2::EventPump, camera: &mut Camera, dt: f32) {
+    use sdl2::keyboard::Scancode;
+
+    let keys = events.keyboard_state();
+    let mut move_dir = [0.0f32, 0.0f32, 0.0f32];
+
+    let forward = camera_forward(camera.yaw, camera.pitch);
+    let right = normalize3(cross3(forward, [0.0, 1.0, 0.0]));
+
+    if keys.is_scancode_pressed(Scancode::Up) || keys.is_scancode_pressed(Scancode::W) {
+        move_dir[0] += forward[0];
+        move_dir[1] += forward[1];
+        move_dir[2] += forward[2];
+    }
+    if keys.is_scancode_pressed(Scancode::Down) || keys.is_scancode_pressed(Scancode::S) {
+        move_dir[0] -= forward[0];
+        move_dir[1] -= forward[1];
+        move_dir[2] -= forward[2];
+    }
+    if keys.is_scancode_pressed(Scancode::Left) || keys.is_scancode_pressed(Scancode::A) {
+        move_dir[0] -= right[0];
+        move_dir[1] -= right[1];
+        move_dir[2] -= right[2];
+    }
+    if keys.is_scancode_pressed(Scancode::Right) || keys.is_scancode_pressed(Scancode::D) {
+        move_dir[0] += right[0];
+        move_dir[1] += right[1];
+        move_dir[2] += right[2];
+    }
+    if keys.is_scancode_pressed(Scancode::PageUp) || keys.is_scancode_pressed(Scancode::E) {
+        move_dir[1] += 1.0;
+    }
+    if keys.is_scancode_pressed(Scancode::PageDown) || keys.is_scancode_pressed(Scancode::Q) {
+        move_dir[1] -= 1.0;
+    }
+
+    let shift =
+        keys.is_scancode_pressed(Scancode::LShift) || keys.is_scancode_pressed(Scancode::RShift);
+    let speed_mul = if shift { 3.0 } else { 1.0 };
+
+    let norm = normalize3(move_dir);
+    camera.position[0] += norm[0] * camera.move_speed * speed_mul * dt;
+    camera.position[1] += norm[1] * camera.move_speed * speed_mul * dt;
+    camera.position[2] += norm[2] * camera.move_speed * speed_mul * dt;
+}
+
+unsafe fn upload_model_renderable(
+    gl: &glow::Context,
+    model: &render_mission_demo::SceneModel,
+) -> Result<ModelRenderable, String> {
+    let mut vertex_data = Vec::with_capacity(model.mesh.vertices.len() * 5);
+    for vertex in &model.mesh.vertices {
+        vertex_data.push(vertex.position[0]);
+        vertex_data.push(vertex.position[1]);
+        vertex_data.push(vertex.position[2]);
+        vertex_data.push(vertex.uv0[0]);
+        vertex_data.push(vertex.uv0[1]);
+    }
+
+    let gpu = upload_gpu_renderable(
+        gl,
+        &vertex_data,
+        &model.mesh.indices,
+        model.texture.as_ref(),
+    )?;
+
+    Ok(ModelRenderable {
+        gpu,
+        instances: model.instances.clone(),
+    })
+}
+
+unsafe fn upload_terrain_renderable(
+    gl: &glow::Context,
+    mesh: &terrain_core::TerrainRenderMesh,
+    texture: Option<&render_demo::LoadedTexture>,
+) -> Result<GpuRenderable, String> {
+    let mut vertex_data = Vec::with_capacity(mesh.vertices.len() * 5);
+    for vertex in &mesh.vertices {
+        vertex_data.push(vertex.position[0]);
+        vertex_data.push(vertex.position[1]);
+        vertex_data.push(vertex.position[2]);
+        vertex_data.push(vertex.uv0[0]);
+        vertex_data.push(vertex.uv0[1]);
+    }
+
+    upload_gpu_renderable(gl, &vertex_data, &mesh.indices, texture)
+}
+
+unsafe fn upload_gpu_renderable(
+    gl: &glow::Context,
+    vertices: &[f32],
+    indices: &[u16],
+    texture: Option<&render_demo::LoadedTexture>,
+) -> Result<GpuRenderable, String> {
+    let vbo = gl.create_buffer().map_err(|e| e.to_string())?;
+    let ebo = gl.create_buffer().map_err(|e| e.to_string())?;
+
+    let vertex_bytes = f32_slice_to_ne_bytes(vertices);
+    let index_bytes = u16_slice_to_ne_bytes(indices);
+
+    gl.bind_buffer(glow::ARRAY_BUFFER, Some(vbo));
+    gl.buffer_data_u8_slice(glow::ARRAY_BUFFER, &vertex_bytes, glow::STATIC_DRAW);
+    gl.bind_buffer(glow::ELEMENT_ARRAY_BUFFER, Some(ebo));
+    gl.buffer_data_u8_slice(glow::ELEMENT_ARRAY_BUFFER, &index_bytes, glow::STATIC_DRAW);
+    gl.bind_buffer(glow::ELEMENT_ARRAY_BUFFER, None);
+    gl.bind_buffer(glow::ARRAY_BUFFER, None);
+
+    let gpu_texture = if let Some(texture) = texture {
+        Some(create_texture(gl, texture)?)
+    } else {
+        None
+    };
+
+    Ok(GpuRenderable {
+        vbo,
+        ebo,
+        index_count: indices.len(),
+        texture: gpu_texture,
+    })
+}
+
+unsafe fn cleanup_renderable(gl: &glow::Context, renderable: GpuRenderable) {
+    if let Some(tex) = renderable.texture {
+        gl.delete_texture(tex.handle);
+    }
+    gl.delete_buffer(renderable.ebo);
+    gl.delete_buffer(renderable.vbo);
+}
+
+unsafe fn draw_frame_begin(gl: &glow::Context, width: u32, height: u32) {
+    gl.viewport(
+        0,
+        0,
+        width.min(i32::MAX as u32) as i32,
+        height.min(i32::MAX as u32) as i32,
+    );
+    gl.enable(glow::DEPTH_TEST);
+    gl.clear_color(0.06, 0.08, 0.12, 1.0);
+    gl.clear(glow::COLOR_BUFFER_BIT | glow::DEPTH_BUFFER_BIT);
+}
+
+unsafe fn draw_gpu_renderable(
+    gl: &glow::Context,
+    program: glow::NativeProgram,
+    u_mvp: Option<&glow::NativeUniformLocation>,
+    u_use_tex: Option<&glow::NativeUniformLocation>,
+    u_tex: Option<&glow::NativeUniformLocation>,
+    a_pos: u32,
+    a_uv: u32,
+    renderable: &GpuRenderable,
+    mvp: &[f32; 16],
+) {
+    gl.use_program(Some(program));
+    gl.uniform_matrix_4_f32_slice(u_mvp, false, mvp);
+
+    let texture_enabled = renderable.texture.is_some();
+    gl.uniform_1_f32(u_use_tex, if texture_enabled { 1.0 } else { 0.0 });
+
+    if let Some(tex) = &renderable.texture {
+        gl.active_texture(glow::TEXTURE0);
+        gl.bind_texture(glow::TEXTURE_2D, Some(tex.handle));
+        gl.uniform_1_i32(u_tex, 0);
+    } else {
+        gl.bind_texture(glow::TEXTURE_2D, None);
+    }
+
+    gl.bind_buffer(glow::ARRAY_BUFFER, Some(renderable.vbo));
+    gl.bind_buffer(glow::ELEMENT_ARRAY_BUFFER, Some(renderable.ebo));
+    gl.enable_vertex_attrib_array(a_pos);
+    gl.vertex_attrib_pointer_f32(a_pos, 3, glow::FLOAT, false, 20, 0);
+    gl.enable_vertex_attrib_array(a_uv);
+    gl.vertex_attrib_pointer_f32(a_uv, 2, glow::FLOAT, false, 20, 12);
+
+    gl.draw_elements(
+        glow::TRIANGLES,
+        renderable.index_count.min(i32::MAX as usize) as i32,
+        glow::UNSIGNED_SHORT,
+        0,
+    );
+
+    gl.disable_vertex_attrib_array(a_uv);
+    gl.disable_vertex_attrib_array(a_pos);
+    gl.bind_buffer(glow::ELEMENT_ARRAY_BUFFER, None);
+    gl.bind_buffer(glow::ARRAY_BUFFER, None);
+    gl.bind_texture(glow::TEXTURE_2D, None);
+    gl.use_program(None);
+}
+
+fn create_window_and_context(
+    video: &sdl2::VideoSubsystem,
+    width: u32,
+    height: u32,
+) -> Result<(sdl2::video::Window, sdl2::video::GLContext, GlBackend), String> {
+    let candidates = [
+        (GlBackend::Gles2, sdl2::video::GLProfile::GLES, 2, 0),
+        (GlBackend::Core33, sdl2::video::GLProfile::Core, 3, 3),
+    ];
+    let mut errors = Vec::new();
+
+    for (backend, profile, major, minor) in candidates {
+        {
+            let gl_attr = video.gl_attr();
+            gl_attr.set_context_profile(profile);
+            gl_attr.set_context_version(major, minor);
+            gl_attr.set_depth_size(24);
+            gl_attr.set_double_buffer(true);
+        }
+
+        let mut window_builder = video.window("Parkan Mission Demo", width, height);
+        window_builder.opengl().resizable();
+
+        let window = match window_builder.build() {
+            Ok(window) => window,
+            Err(err) => {
+                errors.push(format!(
+                    "{profile:?} {major}.{minor}: window build failed ({err})"
+                ));
+                continue;
+            }
+        };
+
+        let gl_ctx = match window.gl_create_context() {
+            Ok(ctx) => ctx,
+            Err(err) => {
+                errors.push(format!(
+                    "{profile:?} {major}.{minor}: context create failed ({err})"
+                ));
+                continue;
+            }
+        };
+
+        if let Err(err) = window.gl_make_current(&gl_ctx) {
+            errors.push(format!(
+                "{profile:?} {major}.{minor}: make current failed ({err})"
+            ));
+            continue;
+        }
+
+        return Ok((window, gl_ctx, backend));
+    }
+
+    Err(format!(
+        "failed to create OpenGL context. Attempts: {}",
+        errors.join(" | ")
+    ))
+}
+
+unsafe fn create_texture(
+    gl: &glow::Context,
+    texture: &render_demo::LoadedTexture,
+) -> Result<GpuTexture, String> {
+    let handle = gl.create_texture().map_err(|e| e.to_string())?;
+    gl.bind_texture(glow::TEXTURE_2D, Some(handle));
+    gl.tex_parameter_i32(
+        glow::TEXTURE_2D,
+        glow::TEXTURE_MIN_FILTER,
+        glow::LINEAR as i32,
+    );
+    gl.tex_parameter_i32(
+        glow::TEXTURE_2D,
+        glow::TEXTURE_MAG_FILTER,
+        glow::LINEAR as i32,
+    );
+    gl.tex_parameter_i32(glow::TEXTURE_2D, glow::TEXTURE_WRAP_S, glow::REPEAT as i32);
+    gl.tex_parameter_i32(glow::TEXTURE_2D, glow::TEXTURE_WRAP_T, glow::REPEAT as i32);
+    gl.pixel_store_i32(glow::UNPACK_ALIGNMENT, 1);
+    gl.tex_image_2d(
+        glow::TEXTURE_2D,
+        0,
+        glow::RGBA as i32,
+        texture.width.min(i32::MAX as u32) as i32,
+        texture.height.min(i32::MAX as u32) as i32,
+        0,
+        glow::RGBA,
+        glow::UNSIGNED_BYTE,
+        glow::PixelUnpackData::Slice(Some(texture.rgba8.as_slice())),
+    );
+    gl.bind_texture(glow::TEXTURE_2D, None);
+    Ok(GpuTexture { handle })
+}
+
+unsafe fn create_program(
+    gl: &glow::Context,
+    backend: GlBackend,
+) -> Result<glow::NativeProgram, String> {
+    let (vs_src, fs_src) = match backend {
+        GlBackend::Gles2 => (
+            r#"
+attribute vec3 a_pos;
+attribute vec2 a_uv;
+uniform mat4 u_mvp;
+varying vec2 v_uv;
+void main() {
+    v_uv = a_uv;
+    gl_Position = u_mvp * vec4(a_pos, 1.0);
+}
+"#,
+            r#"
+precision mediump float;
+uniform sampler2D u_tex;
+uniform float u_use_tex;
+varying vec2 v_uv;
+void main() {
+    vec4 base = vec4(0.82, 0.87, 0.95, 1.0);
+    vec4 texColor = texture2D(u_tex, v_uv);
+    gl_FragColor = mix(base, texColor, u_use_tex);
+}
+"#,
+        ),
+        GlBackend::Core33 => (
+            r#"#version 330 core
+in vec3 a_pos;
+in vec2 a_uv;
+uniform mat4 u_mvp;
+out vec2 v_uv;
+void main() {
+    v_uv = a_uv;
+    gl_Position = u_mvp * vec4(a_pos, 1.0);
+}
+"#,
+            r#"#version 330 core
+uniform sampler2D u_tex;
+uniform float u_use_tex;
+in vec2 v_uv;
+out vec4 fragColor;
+void main() {
+    vec4 base = vec4(0.82, 0.87, 0.95, 1.0);
+    vec4 texColor = texture(u_tex, v_uv);
+    fragColor = mix(base, texColor, u_use_tex);
+}
+"#,
+        ),
+    };
+
+    let program = gl.create_program().map_err(|e| e.to_string())?;
+    let vs = gl
+        .create_shader(glow::VERTEX_SHADER)
+        .map_err(|e| e.to_string())?;
+    let fs = gl
+        .create_shader(glow::FRAGMENT_SHADER)
+        .map_err(|e| e.to_string())?;
+
+    gl.shader_source(vs, vs_src);
+    gl.compile_shader(vs);
+    if !gl.get_shader_compile_status(vs) {
+        let log = gl.get_shader_info_log(vs);
+        gl.delete_shader(vs);
+        gl.delete_shader(fs);
+        gl.delete_program(program);
+        return Err(format!("vertex shader compile failed: {log}"));
+    }
+
+    gl.shader_source(fs, fs_src);
+    gl.compile_shader(fs);
+    if !gl.get_shader_compile_status(fs) {
+        let log = gl.get_shader_info_log(fs);
+        gl.delete_shader(vs);
+        gl.delete_shader(fs);
+        gl.delete_program(program);
+        return Err(format!("fragment shader compile failed: {log}"));
+    }
+
+    gl.attach_shader(program, vs);
+    gl.attach_shader(program, fs);
+    gl.link_program(program);
+
+    gl.detach_shader(program, vs);
+    gl.detach_shader(program, fs);
+    gl.delete_shader(vs);
+    gl.delete_shader(fs);
+
+    if !gl.get_program_link_status(program) {
+        let log = gl.get_program_info_log(program);
+        gl.delete_program(program);
+        return Err(format!("program link failed: {log}"));
+    }
+
+    Ok(program)
+}
+
+fn model_matrix(position: [f32; 3], yaw: f32, scale: [f32; 3]) -> [f32; 16] {
+    let translation = mat4_translation(position[0], position[1], position[2]);
+    let rotation = mat4_rotation_y(yaw);
+    let scaling = mat4_scale(scale[0], scale[1], scale[2]);
+    let tr = mat4_mul(&translation, &rotation);
+    mat4_mul(&tr, &scaling)
+}
+
+fn camera_forward(yaw: f32, pitch: f32) -> [f32; 3] {
+    let cp = pitch.cos();
+    normalize3([yaw.sin() * cp, pitch.sin(), yaw.cos() * cp])
+}
+
+fn cross3(a: [f32; 3], b: [f32; 3]) -> [f32; 3] {
+    [
+        a[1] * b[2] - a[2] * b[1],
+        a[2] * b[0] - a[0] * b[2],
+        a[0] * b[1] - a[1] * b[0],
+    ]
+}
+
+fn dot3(a: [f32; 3], b: [f32; 3]) -> f32 {
+    a[0] * b[0] + a[1] * b[1] + a[2] * b[2]
+}
+
+fn normalize3(v: [f32; 3]) -> [f32; 3] {
+    let len = (v[0] * v[0] + v[1] * v[1] + v[2] * v[2]).sqrt();
+    if len <= 1e-6 {
+        [0.0, 0.0, 0.0]
+    } else {
+        [v[0] / len, v[1] / len, v[2] / len]
+    }
+}
+
+fn mat4_identity() -> [f32; 16] {
+    [
+        1.0, 0.0, 0.0, 0.0, //
+        0.0, 1.0, 0.0, 0.0, //
+        0.0, 0.0, 1.0, 0.0, //
+        0.0, 0.0, 0.0, 1.0, //
+    ]
+}
+
+fn mat4_translation(x: f32, y: f32, z: f32) -> [f32; 16] {
+    let mut m = mat4_identity();
+    m[12] = x;
+    m[13] = y;
+    m[14] = z;
+    m
+}
+
+fn mat4_scale(x: f32, y: f32, z: f32) -> [f32; 16] {
+    [
+        x, 0.0, 0.0, 0.0, //
+        0.0, y, 0.0, 0.0, //
+        0.0, 0.0, z, 0.0, //
+        0.0, 0.0, 0.0, 1.0, //
+    ]
+}
+
+fn mat4_rotation_y(rad: f32) -> [f32; 16] {
+    let c = rad.cos();
+    let s = rad.sin();
+    [
+        c, 0.0, -s, 0.0, //
+        0.0, 1.0, 0.0, 0.0, //
+        s, 0.0, c, 0.0, //
+        0.0, 0.0, 0.0, 1.0, //
+    ]
+}
+
+fn mat4_perspective(fovy: f32, aspect: f32, near: f32, far: f32) -> [f32; 16] {
+    let f = 1.0 / (0.5 * fovy).tan();
+    let nf = 1.0 / (near - far);
+    [
+        f / aspect,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        f,
+        0.0,
+        0.0,
+        0.0,
+        0.0,
+        (far + near) * nf,
+        -1.0,
+        0.0,
+        0.0,
+        (2.0 * far * near) * nf,
+        0.0,
+    ]
+}
+
+fn mat4_look_at(eye: [f32; 3], target: [f32; 3], up: [f32; 3]) -> [f32; 16] {
+    let f = normalize3([target[0] - eye[0], target[1] - eye[1], target[2] - eye[2]]);
+    let s = normalize3(cross3(f, up));
+    let u = cross3(s, f);
+
+    [
+        s[0],
+        u[0],
+        -f[0],
+        0.0,
+        s[1],
+        u[1],
+        -f[1],
+        0.0,
+        s[2],
+        u[2],
+        -f[2],
+        0.0,
+        -dot3(s, eye),
+        -dot3(u, eye),
+        dot3(f, eye),
+        1.0,
+    ]
+}
+
+fn mat4_mul(a: &[f32; 16], b: &[f32; 16]) -> [f32; 16] {
+    let mut out = [0.0f32; 16];
+    for c in 0..4 {
+        for r in 0..4 {
+            let mut acc = 0.0f32;
+            for k in 0..4 {
+                acc += a[k * 4 + r] * b[c * 4 + k];
+            }
+            out[c * 4 + r] = acc;
+        }
+    }
+    out
+}
+
+fn f32_slice_to_ne_bytes(slice: &[f32]) -> Vec<u8> {
+    let mut out = Vec::with_capacity(slice.len().saturating_mul(std::mem::size_of::<f32>()));
+    for &value in slice {
+        out.extend_from_slice(&value.to_ne_bytes());
+    }
+    out
+}
+
+fn u16_slice_to_ne_bytes(slice: &[u16]) -> Vec<u8> {
+    let mut out = Vec::with_capacity(slice.len().saturating_mul(std::mem::size_of::<u16>()));
+    for &value in slice {
+        out.extend_from_slice(&value.to_ne_bytes());
+    }
+    out
+}

crates/render-parity/Cargo.toml

@@ -6,4 +6,4 @@ edition = "2021"
 [dependencies]
 image = { version = "0.25", default-features = false, features = ["png"] }
 serde = { version = "1", features = ["derive"] }
-toml = "0.8"
+toml = "1.0"

crates/rsli/Cargo.toml

@@ -6,3 +6,6 @@ edition = "2021"
 [dependencies]
 common = { path = "../common" }
 flate2 = { version = "1", default-features = false, features = ["rust_backend"] }
+
+[dev-dependencies]
+proptest = "1"

crates/rsli/src/lib.rs

@@ -30,20 +30,33 @@ impl Default for OpenOptions {
     }
 }
 
+#[derive(Clone, Debug)]
+pub struct LibraryHeader {
+    pub raw: [u8; 32],
+    pub magic: [u8; 2],
+    pub reserved: u8,
+    pub version: u8,
+    pub entry_count: i16,
+    pub presorted_flag: u16,
+    pub xor_seed: u32,
+}
+
+#[derive(Clone, Debug)]
+pub struct AoTrailer {
+    pub raw: [u8; 6],
+    pub overlay: u32,
+}
+
 #[derive(Debug)]
 pub struct Library {
     bytes: Arc<[u8]>,
     entries: Vec<EntryRecord>,
-    #[cfg(test)]
+    header: LibraryHeader,
-    pub(crate) header_raw: [u8; 32],
+    ao_trailer: Option<AoTrailer>,
     #[cfg(test)]
     pub(crate) table_plain_original: Vec<u8>,
     #[cfg(test)]
-    pub(crate) xor_seed: u32,
-    #[cfg(test)]
     pub(crate) source_size: usize,
-    #[cfg(test)]
-    pub(crate) trailer_raw: Option<[u8; 6]>,
 }
 
 #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
@@ -77,6 +90,16 @@ pub struct EntryRef<'a> {
     pub meta: &'a EntryMeta,
 }
 
+#[derive(Copy, Clone, Debug)]
+pub struct EntryInspect<'a> {
+    pub id: EntryId,
+    pub meta: &'a EntryMeta,
+    pub name_raw: &'a [u8; 12],
+    pub service_tail: &'a [u8; 4],
+    pub sort_to_original: i16,
+    pub data_offset_raw: u32,
+}
+
 pub struct PackedResource {
     pub meta: EntryMeta,
     pub packed: Vec<u8>,
@@ -86,9 +109,9 @@ pub struct PackedResource {
 pub(crate) struct EntryRecord {
     pub(crate) meta: EntryMeta,
     pub(crate) name_raw: [u8; 12],
+    pub(crate) service_tail: [u8; 4],
     pub(crate) sort_to_original: i16,
     pub(crate) key16: u16,
-    #[cfg(test)]
     pub(crate) data_offset_raw: u32,
     pub(crate) packed_size_declared: u32,
     pub(crate) packed_size_available: usize,
@@ -106,6 +129,14 @@ impl Library {
         parse_library(arc, opts)
     }
 
+    pub fn header(&self) -> &LibraryHeader {
+        &self.header
+    }
+
+    pub fn ao_trailer(&self) -> Option<&AoTrailer> {
+        self.ao_trailer.as_ref()
+    }
+
     pub fn entry_count(&self) -> usize {
         self.entries.len()
     }
@@ -120,6 +151,20 @@ impl Library {
         })
     }
 
+    pub fn entries_inspect(&self) -> impl Iterator<Item = EntryInspect<'_>> {
+        self.entries.iter().enumerate().filter_map(|(idx, entry)| {
+            let id = u32::try_from(idx).ok()?;
+            Some(EntryInspect {
+                id: EntryId(id),
+                meta: &entry.meta,
+                name_raw: &entry.name_raw,
+                service_tail: &entry.service_tail,
+                sort_to_original: entry.sort_to_original,
+                data_offset_raw: entry.data_offset_raw,
+            })
+        })
+    }
+
     pub fn find(&self, name: &str) -> Option<EntryId> {
         if self.entries.is_empty() {
             return None;
@@ -187,6 +232,19 @@ impl Library {
         })
     }
 
+    pub fn inspect(&self, id: EntryId) -> Option<EntryInspect<'_>> {
+        let idx = usize::try_from(id.0).ok()?;
+        let entry = self.entries.get(idx)?;
+        Some(EntryInspect {
+            id,
+            meta: &entry.meta,
+            name_raw: &entry.name_raw,
+            service_tail: &entry.service_tail,
+            sort_to_original: entry.sort_to_original,
+            data_offset_raw: entry.data_offset_raw,
+        })
+    }
+
     pub fn load(&self, id: EntryId) -> Result<Vec<u8>> {
         let entry = self.entry_by_id(id)?;
         let packed = self.packed_slice(id, entry)?;
@@ -284,7 +342,7 @@ impl Library {
 
     #[cfg(test)]
     pub(crate) fn rebuild_from_parsed_metadata(&self) -> Result<Vec<u8>> {
-        let trailer_len = usize::from(self.trailer_raw.is_some()) * 6;
+        let trailer_len = usize::from(self.ao_trailer.is_some()) * 6;
         let pre_trailer_size = self
             .source_size
             .checked_sub(trailer_len)
@@ -304,9 +362,11 @@ impl Library {
         }
 
         let mut out = vec![0u8; pre_trailer_size];
-        out[0..32].copy_from_slice(&self.header_raw);
+        out[0..32].copy_from_slice(&self.header.raw);
-        let encrypted_table =
+        let encrypted_table = xor_stream(
-            xor_stream(&self.table_plain_original, (self.xor_seed & 0xFFFF) as u16);
+            &self.table_plain_original,
+            (self.header.xor_seed & 0xFFFF) as u16,
+        );
         out[32..table_end].copy_from_slice(&encrypted_table);
 
         let mut occupied = vec![false; pre_trailer_size];
@@ -337,8 +397,8 @@ impl Library {
             }
         }
 
-        if let Some(trailer) = self.trailer_raw {
+        if let Some(trailer) = &self.ao_trailer {
-            out.extend_from_slice(&trailer);
+            out.extend_from_slice(&trailer.raw);
         }
         Ok(out)
     }

crates/rsli/src/parse.rs

@@ -1,6 +1,8 @@
 use crate::compress::xor::xor_stream;
 use crate::error::Error;
-use crate::{EntryMeta, EntryRecord, Library, OpenOptions, PackMethod, Result};
+use crate::{
+    AoTrailer, EntryMeta, EntryRecord, Library, LibraryHeader, OpenOptions, PackMethod, Result,
+};
 use std::cmp::Ordering;
 use std::sync::Arc;
 
@@ -16,13 +18,17 @@ pub fn parse_library(bytes: Arc<[u8]>, opts: OpenOptions) -> Result<Library> {
     let mut header_raw = [0u8; 32];
     header_raw.copy_from_slice(&bytes[0..32]);
 
-    if &bytes[0..2] != b"NL" {
+    let mut magic = [0u8; 2];
+    magic.copy_from_slice(&bytes[0..2]);
+    if &magic != b"NL" {
         let mut got = [0u8; 2];
         got.copy_from_slice(&bytes[0..2]);
         return Err(Error::InvalidMagic { got });
     }
-    if bytes[3] != 0x01 {
+    let reserved = bytes[2];
-        return Err(Error::UnsupportedVersion { got: bytes[3] });
+    let version = bytes[3];
+    if version != 0x01 {
+        return Err(Error::UnsupportedVersion { got: version });
     }
 
     let entry_count = i16::from_le_bytes([bytes[4], bytes[5]]);
@@ -36,7 +42,17 @@ pub fn parse_library(bytes: Arc<[u8]>, opts: OpenOptions) -> Result<Library> {
         return Err(Error::TooManyEntries { got: count });
     }
 
+    let presorted_flag = u16::from_le_bytes([bytes[14], bytes[15]]);
     let xor_seed = u32::from_le_bytes([bytes[20], bytes[21], bytes[22], bytes[23]]);
+    let header = LibraryHeader {
+        raw: header_raw,
+        magic,
+        reserved,
+        version,
+        entry_count,
+        presorted_flag,
+        xor_seed,
+    };
 
     let table_len = count.checked_mul(32).ok_or(Error::IntegerOverflow)?;
     let table_offset = 32usize;
@@ -58,8 +74,6 @@ pub fn parse_library(bytes: Arc<[u8]>, opts: OpenOptions) -> Result<Library> {
     }
 
     let (overlay, trailer_raw) = parse_ao_trailer(&bytes, opts.allow_ao_trailer)?;
-    #[cfg(not(test))]
-    let _ = trailer_raw;
 
     let mut entries = Vec::with_capacity(count);
     for idx in 0..count {
@@ -67,6 +81,8 @@ pub fn parse_library(bytes: Arc<[u8]>, opts: OpenOptions) -> Result<Library> {
 
         let mut name_raw = [0u8; 12];
         name_raw.copy_from_slice(&row[0..12]);
+        let mut service_tail = [0u8; 4];
+        service_tail.copy_from_slice(&row[12..16]);
 
         let flags_signed = i16::from_le_bytes([row[16], row[17]]);
         let sort_to_original = i16::from_le_bytes([row[18], row[19]]);
@@ -137,9 +153,9 @@ pub fn parse_library(bytes: Arc<[u8]>, opts: OpenOptions) -> Result<Library> {
                 unpacked_size,
             },
             name_raw,
+            service_tail,
             sort_to_original,
             key16: sort_to_original as u16,
-            #[cfg(test)]
             data_offset_raw,
             packed_size_declared,
             packed_size_available,
@@ -147,7 +163,6 @@ pub fn parse_library(bytes: Arc<[u8]>, opts: OpenOptions) -> Result<Library> {
         });
     }
 
-    let presorted_flag = u16::from_le_bytes([bytes[14], bytes[15]]);
     if presorted_flag == 0xABBA {
         let mut seen = vec![false; count];
         for entry in &entries {
@@ -196,16 +211,12 @@ pub fn parse_library(bytes: Arc<[u8]>, opts: OpenOptions) -> Result<Library> {
     Ok(Library {
         bytes,
         entries,
-        #[cfg(test)]
+        header,
-        header_raw,
+        ao_trailer: trailer_raw.map(|raw| AoTrailer { raw, overlay }),
         #[cfg(test)]
         table_plain_original,
         #[cfg(test)]
-        xor_seed,
-        #[cfg(test)]
         source_size,
-        #[cfg(test)]
-        trailer_raw,
     })
 }
 

crates/rsli/src/tests.rs

@@ -1,14 +1,17 @@
 use super::*;
 use crate::compress::lzh::{LZH_MAX_FREQ, LZH_N_CHAR, LZH_R, LZH_T};
 use crate::compress::xor::xor_stream;
+use common::collect_files_recursive;
 use flate2::write::DeflateEncoder;
 use flate2::write::ZlibEncoder;
 use flate2::Compression;
+use proptest::prelude::*;
 use std::any::Any;
 use std::fs;
 use std::io::Write as _;
 use std::panic::{catch_unwind, AssertUnwindSafe};
 use std::path::PathBuf;
+use std::sync::Arc;
 
 #[derive(Clone, Debug)]
 struct SyntheticRsliEntry {
@@ -37,20 +40,6 @@ impl Default for RsliBuildOptions {
     }
 }
 
-fn collect_files_recursive(root: &Path, out: &mut Vec<PathBuf>) {
-    let Ok(entries) = fs::read_dir(root) else {
-        return;
-    };
-    for entry in entries.flatten() {
-        let path = entry.path();
-        if path.is_dir() {
-            collect_files_recursive(&path, out);
-        } else if path.is_file() {
-            out.push(path);
-        }
-    }
-}
-
 fn rsli_test_files() -> Vec<PathBuf> {
     let root = Path::new(env!("CARGO_MANIFEST_DIR"))
         .join("..")
@@ -1335,3 +1324,15 @@ fn rsli_validation_error_cases() {
     }
     let _ = fs::remove_file(&path);
 }
+
+proptest! {
+    #![proptest_config(ProptestConfig::with_cases(64))]
+
+    #[test]
+    fn parse_library_is_panic_free_on_random_bytes(data in proptest::collection::vec(any::<u8>(), 0..4096)) {
+        let _ = crate::parse::parse_library(
+            Arc::from(data.into_boxed_slice()),
+            OpenOptions::default(),
+        );
+    }
+}

crates/terrain-core/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "terrain-core"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+nres = { path = "../nres" }
+
+[dev-dependencies]
+common = { path = "../common" }

crates/terrain-core/src/lib.rs

@@ -0,0 +1,281 @@
+use nres::Archive;
+use std::fmt;
+use std::path::Path;
+
+pub const TERRAIN_UV_SCALE: f32 = 1024.0;
+
+pub type Result<T> = core::result::Result<T, Error>;
+
+#[derive(Debug)]
+pub enum Error {
+    Nres(nres::error::Error),
+    MissingChunk(&'static str),
+    InvalidChunkSize {
+        label: &'static str,
+        size: usize,
+        stride: usize,
+    },
+    VertexCountOverflow {
+        count: usize,
+    },
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::Nres(err) => write!(f, "{err}"),
+            Self::MissingChunk(label) => write!(f, "missing required terrain chunk: {label}"),
+            Self::InvalidChunkSize {
+                label,
+                size,
+                stride,
+            } => write!(
+                f,
+                "invalid chunk size for {label}: {size} (must be divisible by {stride})"
+            ),
+            Self::VertexCountOverflow { count } => {
+                write!(f, "terrain vertex count {count} exceeds u16 range")
+            }
+        }
+    }
+}
+
+impl std::error::Error for Error {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        match self {
+            Self::Nres(err) => Some(err),
+            _ => None,
+        }
+    }
+}
+
+impl From<nres::error::Error> for Error {
+    fn from(value: nres::error::Error) -> Self {
+        Self::Nres(value)
+    }
+}
+
+#[derive(Clone, Debug)]
+pub struct TerrainMesh {
+    pub positions: Vec<[f32; 3]>,
+    pub uv0: Vec<[f32; 2]>,
+    pub faces: Vec<TerrainFace>,
+}
+
+#[derive(Copy, Clone, Debug)]
+pub struct TerrainFace {
+    pub indices: [u16; 3],
+    pub flags: u32,
+    pub material_tag: u16,
+    pub aux_tag: u16,
+}
+
+#[derive(Clone, Debug)]
+pub struct TerrainRenderMesh {
+    pub vertices: Vec<TerrainRenderVertex>,
+    pub indices: Vec<u16>,
+    pub face_count_raw: usize,
+    pub face_count_kept: usize,
+    pub face_count_dropped_invalid: usize,
+}
+
+#[derive(Copy, Clone, Debug)]
+pub struct TerrainRenderVertex {
+    pub position: [f32; 3],
+    pub uv0: [f32; 2],
+}
+
+pub fn load_land_mesh(path: impl AsRef<Path>) -> Result<TerrainMesh> {
+    let archive = Archive::open_path(path.as_ref())?;
+
+    let positions_entry = archive
+        .entries()
+        .find(|entry| entry.meta.kind == 3)
+        .ok_or(Error::MissingChunk("type=3 (positions)"))?;
+    let uv_entry = archive.entries().find(|entry| entry.meta.kind == 5);
+    let faces_entry = archive
+        .entries()
+        .find(|entry| entry.meta.kind == 21)
+        .ok_or(Error::MissingChunk("type=21 (faces)"))?;
+
+    let positions_payload = archive.read(positions_entry.id)?.into_owned();
+    if positions_payload.len() % 12 != 0 {
+        return Err(Error::InvalidChunkSize {
+            label: "type=3 (positions)",
+            size: positions_payload.len(),
+            stride: 12,
+        });
+    }
+
+    let mut positions = Vec::with_capacity(positions_payload.len() / 12);
+    for chunk in positions_payload.chunks_exact(12) {
+        let x = f32::from_le_bytes(chunk[0..4].try_into().unwrap_or([0; 4]));
+        let y = f32::from_le_bytes(chunk[4..8].try_into().unwrap_or([0; 4]));
+        let z = f32::from_le_bytes(chunk[8..12].try_into().unwrap_or([0; 4]));
+        positions.push([x, y, z]);
+    }
+
+    let mut uv0 = vec![[0.0f32, 0.0f32]; positions.len()];
+    if let Some(uv_entry) = uv_entry {
+        let uv_payload = archive.read(uv_entry.id)?.into_owned();
+        if uv_payload.len() % 4 != 0 {
+            return Err(Error::InvalidChunkSize {
+                label: "type=5 (uv)",
+                size: uv_payload.len(),
+                stride: 4,
+            });
+        }
+        let uv_count = uv_payload.len() / 4;
+        for idx in 0..uv_count.min(uv0.len()) {
+            let off = idx * 4;
+            let u = i16::from_le_bytes([uv_payload[off], uv_payload[off + 1]]) as f32;
+            let v = i16::from_le_bytes([uv_payload[off + 2], uv_payload[off + 3]]) as f32;
+            uv0[idx] = [u / TERRAIN_UV_SCALE, v / TERRAIN_UV_SCALE];
+        }
+    }
+
+    let face_payload = archive.read(faces_entry.id)?.into_owned();
+    if face_payload.len() % 28 != 0 {
+        return Err(Error::InvalidChunkSize {
+            label: "type=21 (faces)",
+            size: face_payload.len(),
+            stride: 28,
+        });
+    }
+
+    let mut faces = Vec::with_capacity(face_payload.len() / 28);
+    for chunk in face_payload.chunks_exact(28) {
+        let flags = u32::from_le_bytes(chunk[0..4].try_into().unwrap_or([0; 4]));
+        let material_tag = u16::from_le_bytes(chunk[4..6].try_into().unwrap_or([0; 2]));
+        let aux_tag = u16::from_le_bytes(chunk[6..8].try_into().unwrap_or([0; 2]));
+        let i0 = u16::from_le_bytes(chunk[8..10].try_into().unwrap_or([0; 2]));
+        let i1 = u16::from_le_bytes(chunk[10..12].try_into().unwrap_or([0; 2]));
+        let i2 = u16::from_le_bytes(chunk[12..14].try_into().unwrap_or([0; 2]));
+        if usize::from(i0) >= positions.len()
+            || usize::from(i1) >= positions.len()
+            || usize::from(i2) >= positions.len()
+        {
+            continue;
+        }
+        faces.push(TerrainFace {
+            indices: [i0, i1, i2],
+            flags,
+            material_tag,
+            aux_tag,
+        });
+    }
+
+    Ok(TerrainMesh {
+        positions,
+        uv0,
+        faces,
+    })
+}
+
+pub fn build_render_mesh(mesh: &TerrainMesh) -> Result<TerrainRenderMesh> {
+    if mesh.positions.len() > usize::from(u16::MAX) + 1 {
+        return Err(Error::VertexCountOverflow {
+            count: mesh.positions.len(),
+        });
+    }
+
+    let vertices = mesh
+        .positions
+        .iter()
+        .enumerate()
+        .map(|(idx, &position)| TerrainRenderVertex {
+            position,
+            uv0: mesh.uv0.get(idx).copied().unwrap_or([0.0, 0.0]),
+        })
+        .collect::<Vec<_>>();
+
+    let mut indices = Vec::with_capacity(mesh.faces.len() * 3);
+    for face in &mesh.faces {
+        indices.extend_from_slice(&face.indices);
+    }
+
+    Ok(TerrainRenderMesh {
+        vertices,
+        indices,
+        face_count_raw: mesh.faces.len(),
+        face_count_kept: mesh.faces.len(),
+        face_count_dropped_invalid: 0,
+    })
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use common::collect_files_recursive;
+    use std::path::{Path, PathBuf};
+
+    fn game_root() -> Option<PathBuf> {
+        let root = Path::new(env!("CARGO_MANIFEST_DIR"))
+            .join("..")
+            .join("..")
+            .join("testdata")
+            .join("Parkan - Iron Strategy");
+        root.is_dir().then_some(root)
+    }
+
+    #[test]
+    fn loads_known_land_mesh() {
+        let Some(root) = game_root() else {
+            eprintln!("skipping: game root missing");
+            return;
+        };
+
+        let land = root
+            .join("DATA")
+            .join("MAPS")
+            .join("Tut_1")
+            .join("Land.msh");
+        if !land.is_file() {
+            eprintln!("skipping missing sample {}", land.display());
+            return;
+        }
+
+        let mesh = load_land_mesh(&land)
+            .unwrap_or_else(|err| panic!("failed to parse {}: {err}", land.display()));
+        assert!(mesh.positions.len() > 1000);
+        assert!(mesh.faces.len() > 1000);
+
+        let render = build_render_mesh(&mesh).expect("failed to build render mesh");
+        assert_eq!(render.vertices.len(), mesh.positions.len());
+        assert_eq!(render.indices.len(), mesh.faces.len() * 3);
+    }
+
+    #[test]
+    fn loads_all_retail_land_meshes() {
+        let Some(root) = game_root() else {
+            eprintln!("skipping: game root missing");
+            return;
+        };
+
+        let maps_root = root.join("DATA").join("MAPS");
+        let mut files = Vec::new();
+        collect_files_recursive(&maps_root, &mut files);
+        files.sort();
+
+        let mut parsed = 0usize;
+        for path in files {
+            if !path
+                .file_name()
+                .and_then(|n| n.to_str())
+                .is_some_and(|n| n.eq_ignore_ascii_case("Land.msh"))
+            {
+                continue;
+            }
+            let mesh = load_land_mesh(&path)
+                .unwrap_or_else(|err| panic!("failed to parse {}: {err}", path.display()));
+            assert!(
+                !mesh.positions.is_empty() && !mesh.faces.is_empty(),
+                "{} parsed but empty",
+                path.display()
+            );
+            parsed += 1;
+        }
+
+        assert!(parsed > 0, "no Land.msh files parsed");
+    }
+}

crates/texm/Cargo.toml

@@ -4,4 +4,6 @@ version = "0.1.0"
 edition = "2021"
 
 [dev-dependencies]
+common = { path = "../common" }
 nres = { path = "../nres" }
+proptest = "1"

crates/texm/src/tests.rs

@@ -1,22 +1,10 @@
 use super::*;
+use common::collect_files_recursive;
 use nres::Archive;
+use proptest::prelude::*;
 use std::fs;
 use std::path::{Path, PathBuf};
 
-fn collect_files_recursive(root: &Path, out: &mut Vec<PathBuf>) {
-    let Ok(entries) = fs::read_dir(root) else {
-        return;
-    };
-    for entry in entries.flatten() {
-        let path = entry.path();
-        if path.is_dir() {
-            collect_files_recursive(&path, out);
-        } else if path.is_file() {
-            out.push(path);
-        }
-    }
-}
-
 fn nres_test_files() -> Vec<PathBuf> {
     let root = Path::new(env!("CARGO_MANIFEST_DIR"))
         .join("..")
@@ -327,3 +315,16 @@ fn texm_errors_for_page_chunk_and_mip_bounds() {
         Err(Error::MipDataOutOfBounds { .. })
     ));
 }
+
+proptest! {
+    #![proptest_config(ProptestConfig::with_cases(64))]
+
+    #[test]
+    fn parse_texm_is_panic_free_on_random_bytes(payload in proptest::collection::vec(any::<u8>(), 0..4096)) {
+        if let Ok(texture) = parse_texm(&payload) {
+            for mip_index in 0..texture.mip_levels.len() {
+                let _ = decode_mip_rgba8(&texture, &payload, mip_index);
+            }
+        }
+    }
+}

crates/tma/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "tma"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+encoding_rs = "0.8"
+
+[dev-dependencies]
+common = { path = "../common" }

crates/tma/src/lib.rs

@@ -0,0 +1,485 @@
+use encoding_rs::WINDOWS_1251;
+use std::fmt;
+use std::fs;
+use std::path::Path;
+
+const OBJECT_RECORD_FLAGS: u32 = 0x8000_0002;
+const FOOTER_MAGIC: &[u8; 4] = b"MtPr";
+const MAP_PATH_TOKEN: &[u8; 10] = b"DATA\\MAPS\\";
+
+pub type Result<T> = core::result::Result<T, Error>;
+
+#[derive(Debug)]
+pub enum Error {
+    Io(std::io::Error),
+    FooterNotFound,
+    FooterCorrupt(&'static str),
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::Io(err) => write!(f, "{err}"),
+            Self::FooterNotFound => write!(f, "footer magic 'MtPr' not found"),
+            Self::FooterCorrupt(reason) => write!(f, "corrupt mission footer: {reason}"),
+        }
+    }
+}
+
+impl std::error::Error for Error {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        match self {
+            Self::Io(err) => Some(err),
+            _ => None,
+        }
+    }
+}
+
+impl From<std::io::Error> for Error {
+    fn from(value: std::io::Error) -> Self {
+        Self::Io(value)
+    }
+}
+
+#[derive(Clone, Debug)]
+pub struct MissionFile {
+    pub footer: MissionFooter,
+    pub objects: Vec<MissionObject>,
+}
+
+#[derive(Clone, Debug)]
+pub struct MissionFooter {
+    pub map_path: String,
+    pub title: String,
+    pub version: u32,
+}
+
+#[derive(Clone, Debug)]
+pub struct MissionObject {
+    pub offset: usize,
+    pub group_id: u32,
+    pub flags: u32,
+    pub resource_name: String,
+    pub logical_id: i32,
+    pub clan_id: i32,
+    pub position: [f32; 3],
+    pub orientation: [f32; 3],
+    pub scale: [f32; 3],
+    pub alias: String,
+}
+
+pub fn parse_path(path: impl AsRef<Path>) -> Result<MissionFile> {
+    let bytes = fs::read(path.as_ref())?;
+    parse_bytes(&bytes)
+}
+
+pub fn parse_bytes(bytes: &[u8]) -> Result<MissionFile> {
+    let footer = parse_footer(bytes)?;
+    let objects = parse_objects(bytes);
+    Ok(MissionFile { footer, objects })
+}
+
+fn parse_footer(bytes: &[u8]) -> Result<MissionFooter> {
+    let map_positions = find_all_map_path_positions(bytes);
+    if map_positions.is_empty() {
+        return Err(Error::FooterNotFound);
+    }
+
+    for map_start in map_positions.into_iter().rev() {
+        if map_start < 4 {
+            continue;
+        }
+
+        let map_end = scan_path_end(bytes, map_start);
+        if map_end <= map_start {
+            continue;
+        }
+        let map_len = map_end - map_start;
+        let Some(declared_map_len) = read_u32(bytes, map_start - 4).map(|v| v as usize) else {
+            continue;
+        };
+        if declared_map_len != map_len {
+            continue;
+        }
+
+        let Some(zero_pad) = read_u32(bytes, map_end) else {
+            continue;
+        };
+        if zero_pad != 0 {
+            continue;
+        }
+
+        let title_len_off = map_end + 4;
+        let Some(title_len) = read_u32(bytes, title_len_off).map(|v| v as usize) else {
+            continue;
+        };
+        if title_len == 0 || title_len > 256 {
+            continue;
+        }
+        let title_start = title_len_off + 4;
+        let Some(title_end) = title_start.checked_add(title_len) else {
+            continue;
+        };
+        if title_end > bytes.len() {
+            continue;
+        }
+
+        let map_path = decode_cp1251(&bytes[map_start..map_end]);
+        if !map_path.to_ascii_uppercase().contains("DATA\\MAPS\\") {
+            continue;
+        }
+        let title = decode_title(&bytes[title_start..title_end]);
+        let version = parse_footer_version(bytes, title_end)?;
+
+        return Ok(MissionFooter {
+            map_path,
+            title,
+            version,
+        });
+    }
+
+    // Fallback for multiplayer/legacy variants where the footer tail differs,
+    // but map path is still present in clear text near EOF.
+    let Some(map_start) = bytes
+        .windows(MAP_PATH_TOKEN.len())
+        .rposition(|window| window == MAP_PATH_TOKEN)
+    else {
+        return Err(Error::FooterCorrupt("failed to decode map/title envelope"));
+    };
+    let map_end = scan_path_end(bytes, map_start);
+    if map_end <= map_start {
+        return Err(Error::FooterCorrupt("failed to decode map/title envelope"));
+    }
+    let map_path = decode_cp1251(&bytes[map_start..map_end]);
+    if !map_path.to_ascii_uppercase().contains("DATA\\MAPS\\") {
+        return Err(Error::FooterCorrupt("failed to decode map/title envelope"));
+    }
+
+    let mut title = String::new();
+    if let Some(title_len) = read_u32(bytes, map_end + 8).map(|v| v as usize) {
+        let title_start = map_end + 12;
+        let title_end = title_start.saturating_add(title_len);
+        if title_len > 0 && title_len <= 256 && title_end <= bytes.len() {
+            let raw = &bytes[title_start..title_end];
+            if raw.iter().all(|b| b.is_ascii_graphic() || *b == b' ') {
+                title = decode_title(raw);
+            }
+        }
+    }
+
+    let version = if let Some(magic_off) = bytes
+        .windows(FOOTER_MAGIC.len())
+        .rposition(|window| window == FOOTER_MAGIC)
+    {
+        read_u32(bytes, magic_off + 4).unwrap_or(1)
+    } else {
+        read_u32(bytes, map_end).unwrap_or(1)
+    };
+
+    Ok(MissionFooter {
+        map_path,
+        title,
+        version,
+    })
+}
+
+fn parse_footer_version(bytes: &[u8], after_title_off: usize) -> Result<u32> {
+    if after_title_off + 8 <= bytes.len()
+        && &bytes[after_title_off..after_title_off + 4] == FOOTER_MAGIC
+    {
+        let version = read_u32(bytes, after_title_off + 4)
+            .ok_or(Error::FooterCorrupt("missing version after MtPr"))?;
+        return Ok(version);
+    }
+
+    let version = read_u32(bytes, after_title_off)
+        .ok_or(Error::FooterCorrupt("missing version after title"))?;
+    Ok(version)
+}
+
+fn find_all_map_path_positions(bytes: &[u8]) -> Vec<usize> {
+    bytes
+        .windows(MAP_PATH_TOKEN.len())
+        .enumerate()
+        .filter_map(|(idx, window)| (window == MAP_PATH_TOKEN).then_some(idx))
+        .collect()
+}
+
+fn scan_path_end(bytes: &[u8], start: usize) -> usize {
+    let mut off = start;
+    while off < bytes.len() && is_path_byte(bytes[off]) {
+        off += 1;
+    }
+    off
+}
+
+fn is_path_byte(byte: u8) -> bool {
+    byte.is_ascii_alphanumeric() || matches!(byte, b'_' | b'.' | b'/' | b'\\' | b'-' | b' ' | b':')
+}
+
+fn parse_objects(bytes: &[u8]) -> Vec<MissionObject> {
+    let mut objects = Vec::new();
+    let min_record_tail = 48usize;
+
+    for offset in 0..bytes.len().saturating_sub(16) {
+        let Some(flags) = read_u32(bytes, offset + 4) else {
+            continue;
+        };
+        if flags != OBJECT_RECORD_FLAGS {
+            continue;
+        }
+
+        let Some(name_len) = read_u32(bytes, offset + 8).map(|v| v as usize) else {
+            continue;
+        };
+        if !(3..=260).contains(&name_len) {
+            continue;
+        }
+
+        let name_start = offset + 12;
+        let Some(name_end) = name_start.checked_add(name_len) else {
+            continue;
+        };
+        if name_end + min_record_tail > bytes.len() {
+            continue;
+        }
+
+        let name_raw = &bytes[name_start..name_end];
+        if !is_object_name_bytes(name_raw) {
+            continue;
+        }
+
+        let resource_name = decode_cp1251(name_raw);
+        if !looks_like_object_name(&resource_name) {
+            continue;
+        }
+
+        let Some(group_id) = read_u32(bytes, offset) else {
+            continue;
+        };
+        let Some(logical_id) = read_i32(bytes, name_end) else {
+            continue;
+        };
+        let Some(clan_id) = read_i32(bytes, name_end + 4) else {
+            continue;
+        };
+        let Some(position) = read_vec3(bytes, name_end + 8) else {
+            continue;
+        };
+        let Some(orientation) = read_vec3(bytes, name_end + 20) else {
+            continue;
+        };
+        let Some(scale) = read_vec3(bytes, name_end + 32) else {
+            continue;
+        };
+        if !all_finite(&position) || !all_finite(&orientation) || !all_finite(&scale) {
+            continue;
+        }
+
+        let alias = parse_alias(bytes, name_end + 44);
+
+        objects.push(MissionObject {
+            offset,
+            group_id,
+            flags,
+            resource_name,
+            logical_id,
+            clan_id,
+            position,
+            orientation,
+            scale,
+            alias,
+        });
+    }
+
+    objects.sort_by_key(|obj| obj.offset);
+    objects.dedup_by_key(|obj| obj.offset);
+    objects
+}
+
+fn parse_alias(bytes: &[u8], alias_len_off: usize) -> String {
+    let Some(alias_len) = read_u32(bytes, alias_len_off).map(|v| v as usize) else {
+        return String::new();
+    };
+    if alias_len == 0 || alias_len > 96 {
+        return String::new();
+    }
+    let alias_start = alias_len_off + 4;
+    let Some(alias_end) = alias_start.checked_add(alias_len) else {
+        return String::new();
+    };
+    if alias_end > bytes.len() {
+        return String::new();
+    }
+    let alias_raw = &bytes[alias_start..alias_end];
+    if !alias_raw
+        .iter()
+        .all(|&b| b == b'_' || b == b'-' || b == b'.' || b.is_ascii_alphanumeric())
+    {
+        return String::new();
+    }
+    decode_cp1251(alias_raw)
+}
+
+fn looks_like_object_name(name: &str) -> bool {
+    if name.ends_with(".dat") {
+        return true;
+    }
+    name.contains('_')
+}
+
+fn is_object_name_bytes(bytes: &[u8]) -> bool {
+    bytes
+        .iter()
+        .all(|b| b.is_ascii_alphanumeric() || matches!(*b, b'_' | b'.' | b'/' | b'\\' | b'-'))
+}
+
+fn all_finite(v: &[f32; 3]) -> bool {
+    v.iter().all(|c| c.is_finite())
+}
+
+fn decode_cp1251(bytes: &[u8]) -> String {
+    let (decoded, _, _) = WINDOWS_1251.decode(bytes);
+    decoded.into_owned()
+}
+
+fn decode_title(bytes: &[u8]) -> String {
+    let end = bytes
+        .iter()
+        .rposition(|b| *b != 0 && *b != 0xCD)
+        .map(|idx| idx + 1)
+        .unwrap_or(0);
+    decode_cp1251(&bytes[..end]).trim().to_string()
+}
+
+fn read_u32(bytes: &[u8], offset: usize) -> Option<u32> {
+    let end = offset.checked_add(4)?;
+    let chunk = bytes.get(offset..end)?;
+    Some(u32::from_le_bytes(chunk.try_into().ok()?))
+}
+
+fn read_i32(bytes: &[u8], offset: usize) -> Option<i32> {
+    read_u32(bytes, offset).map(|v| v as i32)
+}
+
+fn read_f32(bytes: &[u8], offset: usize) -> Option<f32> {
+    let end = offset.checked_add(4)?;
+    let chunk = bytes.get(offset..end)?;
+    Some(f32::from_le_bytes(chunk.try_into().ok()?))
+}
+
+fn read_vec3(bytes: &[u8], offset: usize) -> Option<[f32; 3]> {
+    Some([
+        read_f32(bytes, offset)?,
+        read_f32(bytes, offset + 4)?,
+        read_f32(bytes, offset + 8)?,
+    ])
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use common::collect_files_recursive;
+    use std::path::{Path, PathBuf};
+
+    fn game_root() -> Option<PathBuf> {
+        let root = Path::new(env!("CARGO_MANIFEST_DIR"))
+            .join("..")
+            .join("..")
+            .join("testdata")
+            .join("Parkan - Iron Strategy");
+        root.is_dir().then_some(root)
+    }
+
+    #[test]
+    fn parses_known_mission_footer_and_objects() {
+        let Some(root) = game_root() else {
+            eprintln!("skipping: game root is missing");
+            return;
+        };
+
+        let path = root
+            .join("MISSIONS")
+            .join("CAMPAIGN")
+            .join("CAMPAIGN.00")
+            .join("Mission.01")
+            .join("data.tma");
+        if !path.is_file() {
+            eprintln!("skipping: sample mission is missing ({})", path.display());
+            return;
+        }
+
+        let mission = parse_path(&path).expect("parse mission failed");
+        assert_eq!(mission.footer.version, 1);
+        assert!(
+            mission
+                .footer
+                .map_path
+                .eq_ignore_ascii_case("DATA\\MAPS\\Tut_1\\land"),
+            "unexpected map path: {}",
+            mission.footer.map_path
+        );
+        assert!(mission.objects.len() >= 20);
+        assert!(mission
+            .objects
+            .iter()
+            .any(|obj| obj.resource_name.eq_ignore_ascii_case("s_tree_04")));
+        assert!(mission.objects.iter().any(|obj| {
+            obj.resource_name
+                .eq_ignore_ascii_case("UNITS\\UNITS\\HERO\\tut1_p.dat")
+        }));
+    }
+
+    #[test]
+    fn parses_all_retail_missions() {
+        let Some(root) = game_root() else {
+            eprintln!("skipping: game root is missing");
+            return;
+        };
+
+        let mission_root = root.join("MISSIONS");
+        let mut files = Vec::new();
+        collect_files_recursive(&mission_root, &mut files);
+        files.sort();
+
+        let mut mission_count = 0usize;
+        for path in files {
+            if !path
+                .file_name()
+                .and_then(|n| n.to_str())
+                .is_some_and(|n| n.eq_ignore_ascii_case("data.tma"))
+            {
+                continue;
+            }
+
+            mission_count += 1;
+            let mission = parse_path(&path)
+                .unwrap_or_else(|err| panic!("failed to parse {}: {err}", path.display()));
+            assert!(
+                mission
+                    .footer
+                    .map_path
+                    .to_ascii_uppercase()
+                    .contains("DATA\\MAPS\\"),
+                "{}: invalid map path '{}'",
+                path.display(),
+                mission.footer.map_path
+            );
+            assert!(
+                !mission.objects.is_empty(),
+                "{}: mission has no parsed object records",
+                path.display()
+            );
+            assert!(
+                mission
+                    .objects
+                    .iter()
+                    .all(|obj| obj.position.iter().all(|v| v.is_finite())),
+                "{}: mission has non-finite position",
+                path.display()
+            );
+        }
+
+        assert!(mission_count > 0, "no data.tma files found");
+    }
+}

crates/unitdat/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "unitdat"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+encoding_rs = "0.8"
+
+[dev-dependencies]
+common = { path = "../common" }

crates/unitdat/src/lib.rs

@@ -0,0 +1,180 @@
+use encoding_rs::WINDOWS_1251;
+use std::fmt;
+use std::fs;
+use std::path::Path;
+
+const MIN_SIZE: usize = 0x48;
+const MAGIC: u32 = 0x0000_F0F1;
+
+pub type Result<T> = core::result::Result<T, Error>;
+
+#[derive(Debug)]
+pub enum Error {
+    Io(std::io::Error),
+    TooSmall { got: usize },
+    InvalidMagic { got: u32 },
+    MissingArchiveName,
+    MissingModelKey,
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::Io(err) => write!(f, "{err}"),
+            Self::TooSmall { got } => write!(f, "unit .dat is too small: {got} bytes"),
+            Self::InvalidMagic { got } => write!(f, "invalid .dat magic: 0x{got:08X}"),
+            Self::MissingArchiveName => write!(f, "unit .dat has empty archive name"),
+            Self::MissingModelKey => write!(f, "unit .dat has empty model key"),
+        }
+    }
+}
+
+impl std::error::Error for Error {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        match self {
+            Self::Io(err) => Some(err),
+            _ => None,
+        }
+    }
+}
+
+impl From<std::io::Error> for Error {
+    fn from(value: std::io::Error) -> Self {
+        Self::Io(value)
+    }
+}
+
+#[derive(Clone, Debug)]
+pub struct UnitDat {
+    pub magic: u32,
+    pub flags: u32,
+    pub archive_name: String,
+    pub model_key: String,
+}
+
+pub fn parse_path(path: impl AsRef<Path>) -> Result<UnitDat> {
+    let bytes = fs::read(path.as_ref())?;
+    parse_bytes(&bytes)
+}
+
+pub fn parse_bytes(bytes: &[u8]) -> Result<UnitDat> {
+    if bytes.len() < MIN_SIZE {
+        return Err(Error::TooSmall { got: bytes.len() });
+    }
+
+    let magic = read_u32(bytes, 0).ok_or(Error::TooSmall { got: bytes.len() })?;
+    if magic != MAGIC {
+        return Err(Error::InvalidMagic { got: magic });
+    }
+
+    let flags = read_u32(bytes, 4).ok_or(Error::TooSmall { got: bytes.len() })?;
+    let archive_name = decode_c_string_fixed(&bytes[0x08..0x28]);
+    if archive_name.is_empty() {
+        return Err(Error::MissingArchiveName);
+    }
+
+    let model_key = decode_c_string_fixed(&bytes[0x28..0x48]);
+    if model_key.is_empty() {
+        return Err(Error::MissingModelKey);
+    }
+
+    Ok(UnitDat {
+        magic,
+        flags,
+        archive_name,
+        model_key,
+    })
+}
+
+fn read_u32(bytes: &[u8], offset: usize) -> Option<u32> {
+    let end = offset.checked_add(4)?;
+    let chunk = bytes.get(offset..end)?;
+    Some(u32::from_le_bytes(chunk.try_into().ok()?))
+}
+
+fn decode_c_string_fixed(bytes: &[u8]) -> String {
+    let used = bytes.iter().position(|&b| b == 0).unwrap_or(bytes.len());
+    let (decoded, _, _) = WINDOWS_1251.decode(&bytes[..used]);
+    decoded.trim().to_string()
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use common::collect_files_recursive;
+    use std::path::{Path, PathBuf};
+
+    fn game_root() -> Option<PathBuf> {
+        let root = Path::new(env!("CARGO_MANIFEST_DIR"))
+            .join("..")
+            .join("..")
+            .join("testdata")
+            .join("Parkan - Iron Strategy");
+        root.is_dir().then_some(root)
+    }
+
+    #[test]
+    fn parses_known_dat_files() {
+        let Some(root) = game_root() else {
+            eprintln!("skipping: game root missing");
+            return;
+        };
+
+        let samples = [
+            root.join("UNITS/UNITS/HERO/tut1_p.dat"),
+            root.join("UNITS/UNITS/BATTLE/l_targ.dat"),
+            root.join("UNITS/BUILDS/BRIDGE/m_bridge.dat"),
+        ];
+
+        for path in samples {
+            if !path.is_file() {
+                eprintln!("skipping missing sample {}", path.display());
+                continue;
+            }
+            let dat = parse_path(&path)
+                .unwrap_or_else(|err| panic!("failed to parse {}: {err}", path.display()));
+            assert_eq!(dat.magic, MAGIC);
+            assert!(dat.archive_name.to_ascii_lowercase().ends_with(".rlb"));
+            assert!(dat.model_key.contains('_'));
+        }
+    }
+
+    #[test]
+    fn parses_retail_dat_corpus() {
+        let Some(root) = game_root() else {
+            eprintln!("skipping: game root missing");
+            return;
+        };
+
+        let units_root = root.join("UNITS");
+        let mut files = Vec::new();
+        collect_files_recursive(&units_root, &mut files);
+        files.sort();
+
+        let mut parsed = 0usize;
+        for path in files {
+            if !path
+                .extension()
+                .and_then(|ext| ext.to_str())
+                .is_some_and(|ext| ext.eq_ignore_ascii_case("dat"))
+            {
+                continue;
+            }
+            let dat = parse_path(&path)
+                .unwrap_or_else(|err| panic!("failed to parse {}: {err}", path.display()));
+            assert!(
+                !dat.archive_name.is_empty(),
+                "{} empty archive",
+                path.display()
+            );
+            assert!(
+                !dat.model_key.is_empty(),
+                "{} empty model key",
+                path.display()
+            );
+            parsed += 1;
+        }
+
+        assert!(parsed > 0, "no .dat files parsed");
+    }
+}

docs/specs/missions.md

@@ -31,3 +31,16 @@
 2. Полный перечень типов триггеров и их параметров.
 3. Формальные правила разрешения конфликтов триггеров в одном кадре.
 4. Набор replay parity-тестов «миссия от старта до завершения».
+## 4. Mission -> Prototype -> Mesh bridge
+
+Для 3D-объектов миссии обязательна промежуточная стадия `objects.rlb`:
+
+1. `data.tma` задаёт либо прямой ключ объекта, либо путь к `*.dat`.
+2. `*.dat` даёт `model_key` (в retail-наборе через `objects.rlb`).
+3. Ключ резолвится в запись прототипа внутри `objects.rlb`.
+4. Из прототипа выбирается фактический `*.msh` и архив (например `bases.rlb`, `static.rlb`, `fortif.rlb`).
+5. Только после этого запускается стандартная цепочка материалов и текстур.
+
+Детальный формат и алгоритм вынесены в отдельную страницу:
+
+- [Object registry (`objects.rlb`)](object-registry.md)

docs/specs/nres.md

@@ -187,3 +187,16 @@ Fail-safe поведение:
 1. Формальная семантика `attr1/attr2/attr3` для всех типов ресурсов (частично вынесена в профильные страницы `msh`, `material`, `texture`, `fxid`, `terrain`).
 2. Полная спецификация поведения при не-ASCII именах (в реальных игровых архивах используется ASCII-практика; для Unicode-коллации движок не документирован).
 3. Полная спецификация платформенных гарантий атомарной записи (формат данных закрыт, но OS-уровневые гарантии замены файла зависят от платформы и файловой системы).
+## 12. Специализация `objects.rlb`
+
+Хотя `objects.rlb` формально является обычным `NRes`, его payload имеет отдельный семантический контракт:
+
+- запись каталога соответствует одному объектному прототипу;
+- payload записи - массив фиксированных ссылок `ObjectRef64` (`archive_name[32] + resource_name[32]`);
+- runtime-резолв меша выполняется через эти ссылки, а не через имя entry `*.msh` внутри `objects.rlb`.
+
+Это означает, что `objects.rlb` должен рассматриваться не как архив мешей, а как реестр привязок между mission/unit-ключами и фактическими ресурсами.
+
+См. детальную страницу:
+
+- [Object registry (`objects.rlb`)](object-registry.md)

docs/specs/object-registry.md

@@ -0,0 +1,145 @@
+# Object Registry (`objects.rlb`)
+
+`objects.rlb` - это не архив с готовыми мешами.  
+Это реестр игровых прототипов, который связывает логический идентификатор объекта (`r_h_01`, `s_tree_04`, `fr_m_brige`, ...) с набором реальных ресурсов в других архивах.
+
+Документ описывает формат и runtime-контракт на высоком уровне, без привязки к внутренним именам/адресам из дизассемблера.
+
+Связанные страницы:
+
+- [Missions](missions.md)
+- [NRes](nres.md)
+- [MSH core](msh-core.md)
+- [Wear (`WEAR`)](wear.md)
+- [Material (`MAT0`)](material.md)
+- [Render pipeline](render.md)
+
+## 1. Роль в пайплайне
+
+При загрузке миссии движок работает так:
+
+1. Из `data.tma` получает `resource_name` объекта:
+   - либо прямой ключ (`s_tree_04`);
+   - либо путь к `*.dat` (например `UNITS\\UNITS\\HERO\\tut1_p.dat`).
+2. Для `*.dat` читает заголовок и получает:
+   - `archive_name` (в retail-корпусе всегда `objects.rlb`);
+   - `model_key` (например `R_H_02`).
+3. В `objects.rlb` по ключу (`model_key`/`resource_name`) ищет запись прототипа.
+4. Из записи прототипа резолвит фактический `*.msh` и архив, где лежит геометрия.
+5. Дальше запускается стандартная цепочка:
+   `MSH -> WEAR -> MAT0 -> Texm`.
+
+## 2. Контейнер
+
+`objects.rlb` сам является обычным `NRes`-архивом.
+
+Практические наблюдения на retail-корпусе:
+
+- формат заголовка/каталога полностью совпадает с `NRes`;
+- payload каждой записи прототипа кратен `64` байтам;
+- имя entry в каталоге - это логический ключ объекта (например `r_h_01`, `s_tree_04`).
+
+## 3. Формат payload записи прототипа
+
+Payload состоит из массива фиксированных записей:
+
+```c
+struct ObjectRef64 {
+    char archive_name[32];   // C-строка (CP1251/ASCII)
+    char resource_name[32];  // C-строка (CP1251/ASCII)
+}
+```
+
+Интерпретация:
+
+- `archive_name`: архив-источник (`bases.rlb`, `static.rlb`, `fortif.rlb`, `effects.rlb`, ...).
+- `resource_name`: имя ресурса в этом архиве (`*.msh`, `*.wea`, `*.cpt`, `*.ctl`, `*.bas`, ...).
+
+Важно:
+
+- после первого `NUL` в 32-байтовом поле могут встречаться служебные байты; для runtime-резолва используется только C-строка до первого `NUL`;
+- неизвестные хвостовые байты должны сохраняться 1:1 при writer/roundtrip-редактировании.
+
+## 4. Runtime-резолв геометрии
+
+Канонический порядок выбора меша:
+
+1. Найти запись прототипа по ключу в `objects.rlb`.
+2. Прочитать список `ObjectRef64`.
+3. Если есть ссылка на `*.msh`:
+   - взять первую валидную ссылку;
+   - открыть указанный архив;
+   - загрузить этот `*.msh`.
+4. Если `*.msh` нет, но есть `*.bas`:
+   - взять stem от `*.bas` (`fr_m_brige.bas` -> `fr_m_brige`);
+   - искать `<stem>.msh` в том же архиве (`fortif.rlb`).
+5. Если нет ни `*.msh`, ни `*.bas`, объект трактуется как не-геометрический (пример: солнечный/системный объект) и в 3D-проход не попадает.
+
+## 5. Типовые примеры
+
+`r_h_01`:
+
+- `bases.rlb :: r_h_01.msh`
+- `bases.rlb :: r_h_01.wea`
+- `bases.rlb :: r_h_01.cpt`
+- ...
+
+`s_tree_04`:
+
+- `static.rlb :: s_tree_0_04.msh`
+- `static.rlb :: s_tree_0_04.wea`
+- ...
+
+`fr_m_brige`:
+
+- прямого `*.msh` в записи нет;
+- есть `fortif.rlb :: fr_m_brige.bas`;
+- меш резолвится как `fortif.rlb :: fr_m_brige.msh`.
+
+`sun_01`:
+
+- ссылки на `*.sun`/effect-ресурсы;
+- 3D-меш отсутствует.
+
+## 6. Инварианты для reader/writer
+
+Reader:
+
+- payload записи прототипа должен быть кратен `64`;
+- каждая запись читается как две независимые C-строки фиксированной длины;
+- поиск в архивах должен быть case-insensitive по ASCII.
+
+Writer/editor:
+
+- сохранять порядок `ObjectRef64` без перестановок;
+- сохранять неизвестные служебные байты полей 1:1;
+- не нормализовать имена, если это не требуется задачей.
+
+## 7. Валидация
+
+Проверено на retail-корпусе `testdata/Parkan - Iron Strategy`:
+
+- все `590` записей `objects.rlb` имеют payload, кратный `64`;
+- `554` записей имеют прямую ссылку на `*.msh`;
+- `34` записи используют ветку через `*.bas`;
+- `2` записи не содержат геометрии (системные/sun).
+
+Интеграционные тесты в Rust подтверждают резолв:
+
+- `r_h_01 -> bases.rlb :: r_h_01.msh`
+- `s_tree_04 -> static.rlb :: s_tree_0_04.msh`
+- `fr_m_brige -> fortif.rlb :: fr_m_brige.msh`
+
+## 8. Статус покрытия и что осталось до 100%
+
+Закрыто:
+
+1. Формат payload записи прототипа (`ObjectRef64`) и правила чтения.
+2. Runtime-алгоритм выбора меша (`*.msh` напрямую и fallback через `*.bas`).
+3. Корпусная проверка структуры и интеграционные тесты резолва.
+
+Осталось:
+
+1. Полная field-level семантика служебных байтов после `NUL` в `resource_name[32]`.
+2. Формальная семантика всех категорий ссылок (`*.ctl`, `*.cpt`, `*.ndp`, `*.sun`) в терминах систем движка (не только render-пути).
+3. Writer-спецификация уровня "authoring new prototype from scratch" с гарантией runtime-паритета.

docs/specs/render.md

@@ -167,3 +167,16 @@ void RenderFrame(Scene* scene, Camera* cam, float dt) {
 1. Полный pixel-parity контур с эталонными кадрами оригинального рендера по набору моделей/сцен.
 2. Формализация всех render-state деталей (точные blend/depth/cull/state transitions) для гарантии 1:1 в каждом draw-pass.
 3. Полный coverage-пакет по динамическим веткам (FX-heavy кадры, сложные material-режимы, lightmap-комбинации).
+
+## 12. Object registry bridge (`objects.rlb`)
+
+Для миссионного/юнитного рендера критично учитывать промежуточный слой прототипов:
+
+1. `TMA`/`*.dat` обычно дают не прямой `*.msh`, а ключ прототипа.
+2. Ключ резолвится через `objects.rlb` (реестр ссылок на реальные архивы ресурсов).
+3. Только после этого выполняется стандартный путь:
+   `MSH -> WEAR -> MAT0 -> Texm`.
+
+Детальная спецификация этого шага вынесена в отдельную страницу:
+
+- [Object registry (`objects.rlb`)](object-registry.md)

mkdocs.yml

@@ -34,6 +34,7 @@ nav:
       - Texture (Texm): specs/texture.md
       - Materials index: specs/materials-texm.md
       - Missions: specs/missions.md
+      - Object registry (objects.rlb): specs/object-registry.md
       - MSH animation: specs/msh-animation.md
       - MSH core: specs/msh-core.md
       - Network system: specs/network.md