MeshletMesh

Remarks

What MeshletBuilder produces and what phase 2 pages into the device. The indirection is two deep on purpose: Triangles holds one byte per corner indexing a cluster's own vertex list, and Vertices maps that list into the source mesh's vertex arrays. A cluster is therefore relocatable — its triangles say nothing about where its vertices ended up — which is what a page pool that evicts needs.

Vertices are the source mesh's, unchanged. Simplification here only ever collapses a vertex onto another vertex that already existed, so no level invents a position, a normal or a skinning weight. That is a real constraint — a quadric's optimal placement is a slightly better surface — and it buys three things worth more than that: attributes need no interpolation and therefore cannot drift, a locked boundary is bit-identical between a parent and its children rather than nearly so, and every level shares one vertex buffer.

Fields and properties (8)

• public Meshlet[] Meshlets

  Every cluster at every level, coarsest last.

• public MeshletGroup[] Groups

  Every DAG edge.

• public int[] Vertices

  Each cluster's vertex list, concatenated: an index into the source mesh's vertices.

• public byte[] Triangles

  Three bytes per triangle, each an index into the owning cluster's vertex list.

• public int[] Roots

  The clusters nothing simplified further, which is what a never-streamed object draws.

• public int LevelCount

  How many levels there are, counting the original mesh as one.

• public int[] Fallback

  The fallback mesh: three source-vertex indices per triangle.

• public int TriangleCount

  How many triangles the whole DAG holds, across every level.

Methods (1)

• public void GetTriangles(in Meshlet meshlet, Span<int> indices)

  The corners of one cluster's triangles, as indices into the source mesh's vertices.

Used by (34)

• VirtualGeometryGameVirtualGeometry
• ClusterRasterTestsVixen.Rendering.Tests
• ClusterResolveTestsVixen.Rendering.Tests
• ClusterTraversalAcceptsTestsVixen.Rendering.Tests
• ClusterTraversalGroupTestsVixen.Rendering.Tests
• GpuClusterCullingVixen.Rendering
• GpuClusterVisibilityVixen.Rendering
• MeshletBuilderVixen.Rendering.VirtualGeometry
• MeshletBuilderTestsVixen.Rendering.VirtualGeometry.Tests
• MeshletCutVixen.Rendering.VirtualGeometry
• MeshletCutTestsVixen.Rendering.VirtualGeometry.Tests
• MeshletPageBuilderVixen.Rendering.VirtualGeometry
• MeshletPageBuilderTestsVixen.Rendering.VirtualGeometry.Tests
• MeshletStreamingTestsVixen.Rendering.Tests
• MeshletValidatorVixen.Rendering.VirtualGeometry
• MeshletValidatorTestsVixen.Rendering.VirtualGeometry.Tests
• SessionVixen.Rendering.VirtualGeometry
• SkinnedClusterTestsVixen.Rendering.Tests
• SoftwareRasterTestsVixen.Rendering.Tests
• TypeRegistrationVixen.Rendering
• VirtualGeometryAssetVixen.Rendering
• VirtualGeometryContentVixen.Rendering
• VirtualGeometryContentTestsVixen.Rendering.Tests
• VirtualGeometryDeviceTestsVixen.Graphics.Golden.Tests
• VirtualGeometryFrameTestsVixen.Rendering.Tests
• VirtualGeometryGoldenTestsVixen.Graphics.Golden.Tests
• VirtualGeometryRenderFeatureVixen.Rendering
• VisibilityResolveTestsVixen.Rendering.Tests
• Vixen_Rendering_VirtualGeometryAssetSerializerVixen.Rendering
• Vixen_Rendering_VirtualGeometry_MeshletMeshSerializerVixen.Rendering.VirtualGeometry
• ModelCompilerVixen.Editor.Assets
• ModelImporterVixen.Editor.Assets
• ModelImporterTestsVixen.Editor.Assets.Tests
• SkinnedPageTestsVixen.Editor.Assets.Tests