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almost nail down the rendering

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bird_egop
2026-06-06 01:24:09 +03:00
parent 0d8e4ba491
commit 776bb9fcb3
4 changed files with 141 additions and 86 deletions
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NResUI/Rendering/Viewport/Meshes/PrimitiveMeshes.cs
+138 -78
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@@ -1,5 +1,4 @@
using System;
using System.Collections.Generic;
using System.Numerics;
using Silk.NET.OpenGL;
namespace NResUI.Rendering.Viewport.Meshes;
@@ -8,50 +7,64 @@ public static unsafe class PrimitiveMeshes
{
public static GpuMesh CreateCube(GL gl)
{
// position.xyz, color.rgb
float[] vertices =
{
// front
-1, -1, 1, 1, 0, 0,
1, -1, 1, 0, 1, 0,
1, 1, 1, 0, 0, 1,
-1, 1, 1, 1, 1, 0,
var vertices = new List<float>();
var indices = new List<uint>();
// back
-1, -1, -1, 1, 0, 1,
1, -1, -1, 0, 1, 1,
1, 1, -1, 1, 1, 1,
-1, 1, -1, 0.5f, 0.5f, 0.5f,
};
AddCubeFace(
vertices, indices,
new Vector3(-1, -1, 1),
new Vector3( 1, -1, 1),
new Vector3( 1, 1, 1),
new Vector3(-1, 1, 1),
new Vector3(0, 0, 1),
new Vector3(1, 0, 0));
uint[] indices =
{
// front
0, 1, 2,
2, 3, 0,
AddCubeFace(
vertices, indices,
new Vector3( 1, -1, -1),
new Vector3(-1, -1, -1),
new Vector3(-1, 1, -1),
new Vector3( 1, 1, -1),
new Vector3(0, 0, -1),
new Vector3(0, 1, 0));
// right
1, 5, 6,
6, 2, 1,
AddCubeFace(
vertices, indices,
new Vector3(-1, -1, -1),
new Vector3(-1, -1, 1),
new Vector3(-1, 1, 1),
new Vector3(-1, 1, -1),
new Vector3(-1, 0, 0),
new Vector3(0, 0, 1));
// back
5, 4, 7,
7, 6, 5,
AddCubeFace(
vertices, indices,
new Vector3(1, -1, 1),
new Vector3(1, -1, -1),
new Vector3(1, 1, -1),
new Vector3(1, 1, 1),
new Vector3(1, 0, 0),
new Vector3(1, 1, 0));
// left
4, 0, 3,
3, 7, 4,
AddCubeFace(
vertices, indices,
new Vector3(-1, 1, 1),
new Vector3( 1, 1, 1),
new Vector3( 1, 1, -1),
new Vector3(-1, 1, -1),
new Vector3(0, 1, 0),
new Vector3(1, 0, 1));
// top
3, 2, 6,
6, 7, 3,
AddCubeFace(
vertices, indices,
new Vector3(-1, -1, -1),
new Vector3( 1, -1, -1),
new Vector3( 1, -1, 1),
new Vector3(-1, -1, 1),
new Vector3(0, -1, 0),
new Vector3(0, 1, 1));
// bottom
4, 5, 1,
1, 0, 4,
};
return CreateIndexedMesh(gl, vertices, indices, PrimitiveType.Triangles);
return CreateColoredIndexedMesh(gl, vertices, indices, PrimitiveType.Triangles);
}
public static GpuMesh CreateWorldGrid(
@@ -72,25 +85,15 @@ public static unsafe class PrimitiveMeshes
var vertices = new List<float>();
var indices = new List<uint>();
void AddVertex(float x, float y, float z, float r, float g, float b)
{
vertices.Add(x);
vertices.Add(y);
vertices.Add(z);
vertices.Add(r);
vertices.Add(g);
vertices.Add(b);
}
void AddLine(
float x0, float y0, float z0,
float x1, float y1, float z1,
float r, float g, float b)
{
var startIndex = (uint)(vertices.Count / 6);
var startIndex = (uint)(vertices.Count / 9);
AddVertex(x0, y0, z0, r, g, b);
AddVertex(x1, y1, z1, r, g, b);
AddVertex(vertices, x0, y0, z0, r, g, b, 0, 1, 0);
AddVertex(vertices, x1, y1, z1, r, g, b, 0, 1, 0);
indices.Add(startIndex);
indices.Add(startIndex + 1);
@@ -132,30 +135,88 @@ public static unsafe class PrimitiveMeshes
return CreateIndexedMesh(gl, vertices.ToArray(), indices.ToArray(), PrimitiveType.Lines);
}
private static void AddCubeFace(
List<float> vertices,
List<uint> indices,
Vector3 a,
Vector3 b,
Vector3 c,
Vector3 d,
Vector3 normal,
Vector3 color)
{
var start = (uint)(vertices.Count / 9);
AddVertex(vertices, a.X, a.Y, a.Z, color.X, color.Y, color.Z, normal.X, normal.Y, normal.Z);
AddVertex(vertices, b.X, b.Y, b.Z, color.X, color.Y, color.Z, normal.X, normal.Y, normal.Z);
AddVertex(vertices, c.X, c.Y, c.Z, color.X, color.Y, color.Z, normal.X, normal.Y, normal.Z);
AddVertex(vertices, d.X, d.Y, d.Z, color.X, color.Y, color.Z, normal.X, normal.Y, normal.Z);
indices.Add(start + 0);
indices.Add(start + 1);
indices.Add(start + 2);
indices.Add(start + 2);
indices.Add(start + 3);
indices.Add(start + 0);
}
public static GpuMesh CreateUnitWireBox(GL gl)
{
float[] vertices =
var vertices = new List<float>();
var indices = new List<uint>();
var color = new Vector3(1.0f, 0.82f, 0.15f);
Vector3[] corners =
{
-1, -1, -1, 1.0f, 0.82f, 0.15f,
1, -1, -1, 1.0f, 0.82f, 0.15f,
1, 1, -1, 1.0f, 0.82f, 0.15f,
-1, 1, -1, 1.0f, 0.82f, 0.15f,
-1, -1, 1, 1.0f, 0.82f, 0.15f,
1, -1, 1, 1.0f, 0.82f, 0.15f,
1, 1, 1, 1.0f, 0.82f, 0.15f,
-1, 1, 1, 1.0f, 0.82f, 0.15f,
new(-1, -1, -1),
new( 1, -1, -1),
new( 1, 1, -1),
new(-1, 1, -1),
new(-1, -1, 1),
new( 1, -1, 1),
new( 1, 1, 1),
new(-1, 1, 1),
};
uint[] indices =
foreach (var corner in corners)
{
AddVertex(vertices, corner.X, corner.Y, corner.Z, color.X, color.Y, color.Z);
}
uint[] lineIndices =
{
0, 1, 1, 2, 2, 3, 3, 0,
4, 5, 5, 6, 6, 7, 7, 4,
0, 4, 1, 5, 2, 6, 3, 7,
};
return CreateIndexedMesh(gl, vertices, indices, PrimitiveType.Lines);
indices.AddRange(lineIndices);
return CreateIndexedMesh(gl, vertices.ToArray(), indices.ToArray(), PrimitiveType.Lines);
}
private static void AddVertex(
List<float> vertices,
float x, float y, float z,
float r, float g, float b,
float nx = 0.0f,
float ny = 1.0f,
float nz = 0.0f)
{
vertices.Add(x);
vertices.Add(y);
vertices.Add(z);
vertices.Add(r);
vertices.Add(g);
vertices.Add(b);
vertices.Add(nx);
vertices.Add(ny);
vertices.Add(nz);
}
public static GpuMesh CreateAxes(GL gl, float length = 1.0f)
@@ -163,26 +224,25 @@ public static unsafe class PrimitiveMeshes
if (length <= 0.0f)
throw new ArgumentOutOfRangeException(nameof(length));
float[] vertices =
var vertices = new List<float>();
var indices = new List<uint>();
void AddLine(Vector3 a, Vector3 b, Vector3 color)
{
0, 0, 0, 1.0f, 0.25f, 0.25f,
length, 0, 0, 1.0f, 0.25f, 0.25f,
var start = (uint)(vertices.Count / 9);
0, 0, 0, 0.25f, 1.0f, 0.25f,
0, length, 0, 0.25f, 1.0f, 0.25f,
AddVertex(vertices, a.X, a.Y, a.Z, color.X, color.Y, color.Z);
AddVertex(vertices, b.X, b.Y, b.Z, color.X, color.Y, color.Z);
0, 0, 0, 0.25f, 0.45f, 1.0f,
0, 0, length, 0.25f, 0.45f, 1.0f,
};
indices.Add(start);
indices.Add(start + 1);
}
uint[] indices =
{
0, 1,
2, 3,
4, 5,
};
AddLine(Vector3.Zero, new Vector3(length, 0, 0), new Vector3(1.0f, 0.25f, 0.25f));
AddLine(Vector3.Zero, new Vector3(0, length, 0), new Vector3(0.25f, 1.0f, 0.25f));
AddLine(Vector3.Zero, new Vector3(0, 0, length), new Vector3(0.25f, 0.45f, 1.0f));
return CreateIndexedMesh(gl, vertices, indices, PrimitiveType.Lines);
return CreateIndexedMesh(gl, vertices.ToArray(), indices.ToArray(), PrimitiveType.Lines);
}
public static GpuMesh CreateColoredIndexedMesh(