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feat(rhi): add NoAccess ops, axis conversion, meshlet color

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Added NoAccess to attachment ops for depth/stencil, updated D3D12 and RenderGraph to handle new ops, and improved axis/handedness conversion in mesh loading. Enabled meshlet color hashing in test shader. Changed default rasterizer winding, added format helpers, and updated camera transform for correct mesh orientation. JobScheduler usage commented out for now.
This commit is contained in:
Misaki
2026-04-01 19:57:27 +09:00
parent eb41f23582
commit e32a24739d
11 changed files with 79 additions and 51 deletions
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37
src/Test/Ghost.Graphics.Test/Utilities/MeshUtility.cs
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@@ -1,6 +1,5 @@
using Ghost.Core;
using Ghost.Graphics.RHI;
using Ghost.Graphics.Utilities;
using Ghost.MeshOptimizer;
using Ghost.Ufbx;
using Misaki.HighPerformance.LowLevel;
@@ -8,12 +7,14 @@ using Misaki.HighPerformance.LowLevel.Buffer;
using Misaki.HighPerformance.LowLevel.Collections;
using Misaki.HighPerformance.LowLevel.Utilities;
using Misaki.HighPerformance.Mathematics;
using System.Runtime.CompilerServices;
using System.Text;
namespace Ghost.Graphics.Test.Utilities;
internal static class MeshUtility
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static float4 ComputeTangent(float3 t, float3 n, float3 b)
{
var proj = n * math.dot(n, t);
@@ -22,6 +23,12 @@ internal static class MeshUtility
return new float4(t.xyz, w);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static float3 RightHandToLeft(float3 p)
{
return new float3(p.x, p.y, -p.z);
}
public static unsafe Result LoadMesh(string filePath, Allocator allocator, out UnsafeList<Vertex> vertices, out UnsafeList<uint> indices)
{
vertices = default;
@@ -38,7 +45,25 @@ internal static class MeshUtility
return Result.Failure("Unsupported file format. Only .obj and .fbx are supported.");
}
var load_Opts = new ufbx_load_opts();
var load_Opts = new ufbx_load_opts
{
target_axes = new ufbx_coordinate_axes
{
right = ufbx_coordinate_axis.UFBX_COORDINATE_AXIS_POSITIVE_X,
up = ufbx_coordinate_axis.UFBX_COORDINATE_AXIS_POSITIVE_Y,
front = ufbx_coordinate_axis.UFBX_COORDINATE_AXIS_POSITIVE_Z
},
obj_axes = new ufbx_coordinate_axes
{
right = ufbx_coordinate_axis.UFBX_COORDINATE_AXIS_POSITIVE_X,
up = ufbx_coordinate_axis.UFBX_COORDINATE_AXIS_POSITIVE_Y,
front = ufbx_coordinate_axis.UFBX_COORDINATE_AXIS_NEGATIVE_Z
},
// Force X-axis mirroring to correctly convert handedness to Left-Handed,
// while preserving correct left/right orientation when viewed from the front.
handedness_conversion_axis = ufbx_mirror_axis.UFBX_MIRROR_AXIS_X,
space_conversion = ufbx_space_conversion.UFBX_SPACE_CONVERSION_MODIFY_GEOMETRY,
};
var error = new ufbx_error();
using var pool = new MemoryPool<VirtualStack, VirtualStack.CreationOpts>(new VirtualStack.CreationOpts
@@ -81,7 +106,7 @@ internal static class MeshUtility
}
var maxScratchIndices = (int)(pMesh->max_face_triangles * 3u);
using var triIndicesArray = new UnsafeArray<uint>(maxScratchIndices, scope1.AllocationHandle);
for (var j = 0u; j < pMesh->num_faces; j++)
@@ -95,12 +120,9 @@ internal static class MeshUtility
{
var ufbxTopologyIndex = triIndicesArray[k];
// TODO: Check if normals/UVs exist before accessing .flatIndices.data
// If it does not exist, we leave uv as (0,0) and compute normals/tangents later
var posIdx = pMesh->vertex_position.indices.data[ufbxTopologyIndex];
var normIdx = pMesh->vertex_normal.exists ? pMesh->vertex_normal.indices.data[ufbxTopologyIndex] : uint.MaxValue;
var tanIdx = pMesh->vertex_tangent.exists ? pMesh->vertex_tangent.indices.data[ufbxTopologyIndex] : uint.MaxValue;
var tanIdx = pMesh->vertex_tangent.exists ? pMesh->vertex_tangent.indices.data[ufbxTopologyIndex] : uint.MaxValue;
var uvIdx = pMesh->vertex_uv.exists ? pMesh->vertex_uv.indices.data[ufbxTopologyIndex] : uint.MaxValue;
var colIdx = pMesh->vertex_color.exists ? pMesh->vertex_color.indices.data[ufbxTopologyIndex] : uint.MaxValue;
var btanIdx = pMesh->vertex_bitangent.exists ? pMesh->vertex_bitangent.indices.data[ufbxTopologyIndex] : uint.MaxValue;
@@ -124,7 +146,6 @@ internal static class MeshUtility
var newIndex = (uint)flatVertices.Count;
flatVertices.Add(vertex);
//flatIndices.Add(newIndex);
if (!needComputeNormals)
{