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feat(animation): recover Node38 fallback hierarchy

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This commit is contained in:
Valentin Popov
2026-07-18 16:25:20 +04:00
parent 858dcd0d1d
commit 1a8e1eaed1
7 changed files with 281 additions and 38 deletions
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adapters/fparkan-render-vulkan/src/asset_mesh.rs
+11 -11
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@@ -2,7 +2,7 @@
use crate::{VulkanStaticDrawRange, VulkanStaticMesh, VulkanStaticVertex};
use fparkan_msh::{
draw_batches, node38_fallback_pose, selected_slot, Group, Lod, ModelAsset, NodeId,
draw_batches, node38_fallback_hierarchy, selected_slot, Group, Lod, ModelAsset, NodeId,
};
use fparkan_render::{LegacyIron3dEulerTransform, LegacyPipelineState};
use fparkan_terrain_format::LandMeshDocument;
@@ -261,11 +261,10 @@ pub fn project_msh_to_static_mesh_in_world_space_with_transform(
/// Projects a standard `Node38` model using each selected node's decoded
/// fallback pose before its recovered `Iron3D` placement transform.
///
/// This is deliberately not a skeleton evaluator: the source field at
/// `Node38 + 2` is still an unassigned link, so no parent transform is
/// inferred here. Each node's source fallback pose is nevertheless enough to
/// keep independently stored static components at their authored local pose.
/// Models without complete standard-node pose data retain the established
/// The source link at `Node38 + 2` is a parent index: `0xFFFF` marks a root
/// and non-root indices are parent-before-child. The bridge composes the
/// fallback poses through that hierarchy before applying the outer transform.
/// Models without complete standard-node hierarchy data retain the established
/// unposed static bridge.
///
/// # Errors
@@ -289,6 +288,9 @@ pub fn project_msh_to_static_mesh_in_world_space_with_node_fallback_poses(
if model.node_stride != 38 || model.node_count == 0 || model.animation.is_none() {
return project_msh_to_static_mesh_in_world_space_with_transform(model, transform, scale);
}
let Some(hierarchy) = node38_fallback_hierarchy(model) else {
return project_msh_to_static_mesh_in_world_space_with_transform(model, transform, scale);
};
let mut vertices = Vec::new();
let mut indices = Vec::new();
@@ -299,11 +301,7 @@ pub fn project_msh_to_static_mesh_in_world_space_with_node_fallback_poses(
let Some(slot) = selected_slot(model, node, Lod(0), Group(0)) else {
continue;
};
let Some(pose) = node38_fallback_pose(model, node) else {
return project_msh_to_static_mesh_in_world_space_with_transform(
model, transform, scale,
);
};
let pose = hierarchy.poses[node_index];
if !pose
.translation
.iter()
@@ -893,7 +891,9 @@ mod tests {
#[test]
fn world_space_msh_applies_each_node_fallback_pose_before_root_transform() {
let mut nodes = vec![0_u8; 76];
nodes[2..4].copy_from_slice(&u16::MAX.to_le_bytes());
nodes[8..10].copy_from_slice(&0_u16.to_le_bytes());
nodes[38 + 2..38 + 4].copy_from_slice(&0_u16.to_le_bytes());
nodes[38 + 6..38 + 8].copy_from_slice(&1_u16.to_le_bytes());
nodes[38 + 8..38 + 10].copy_from_slice(&1_u16.to_le_bytes());
let source = ModelAsset {