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Optimize Animated Model rendering with hardware instancing

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All models are using the same global buffer for skinned bones which allows to share shader binding for instancing.
Refactor draw call for batching skinned mesh draws.
Remove `SkinnedMeshDrawData` and merge it into `AnimatedModel` internals.
This commit is contained in:
Wojciech Figat
2026-06-15 17:59:41 +02:00
parent 4d1c627900
commit bc36168318
26 changed files with 430 additions and 367 deletions
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Source/Engine/Graphics/Models/SkinnedMesh.cpp
+12 -4
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@@ -334,6 +334,7 @@ void SkinnedMesh::Draw(const RenderContext& renderContext, const DrawInfo& info,
return;
// Setup draw call
ASSERT(info.SkinningBones);
DrawCall drawCall;
drawCall.Geometry.IndexBuffer = _indexBuffer;
drawCall.Geometry.VertexBuffers[0] = _vertexBuffers[0];
@@ -348,8 +349,11 @@ void SkinnedMesh::Draw(const RenderContext& renderContext, const DrawInfo& info,
drawCall.ObjectRadius = (float)info.Bounds.Radius; // TODO: should it be kept in sync with ObjectPosition?
drawCall.Surface.GeometrySize = _box.GetSize();
drawCall.Surface.PrevWorld = info.DrawState->PrevWorld;
drawCall.Surface.Skinning = info.Skinning;
drawCall.Surface.LODDitherFactor = lodDitherFactor;
drawCall.Surface.Skinning = info.WithPrevBones ? DrawCall::SkinningMode::WithPrevBones : DrawCall::SkinningMode::Active;
drawCall.Surface.SkinningBones = info.SkinningBones;
drawCall.Surface.SkinningBonesOffset = info.SkinningBonesOffset;
drawCall.Surface.PrevBonesOffset = info.PrevBonesOffset;
drawCall.Surface.LODDitherFactor = (byte)(lodDitherFactor * 255);
drawCall.PerInstanceRandom = info.PerInstanceRandom;
drawCall.StencilValue = info.StencilValue;
@@ -376,6 +380,7 @@ void SkinnedMesh::Draw(const RenderContextBatch& renderContextBatch, const DrawI
return;
// Setup draw call
ASSERT(info.SkinningBones);
DrawCall drawCall;
drawCall.Geometry.IndexBuffer = _indexBuffer;
drawCall.Geometry.VertexBuffers[0] = _vertexBuffers[0];
@@ -389,8 +394,11 @@ void SkinnedMesh::Draw(const RenderContextBatch& renderContextBatch, const DrawI
drawCall.ObjectRadius = (float)info.Bounds.Radius; // TODO: should it be kept in sync with ObjectPosition?
drawCall.Surface.GeometrySize = _box.GetSize();
drawCall.Surface.PrevWorld = info.DrawState->PrevWorld;
drawCall.Surface.Skinning = info.Skinning;
drawCall.Surface.LODDitherFactor = lodDitherFactor;
drawCall.Surface.Skinning = info.WithPrevBones ? DrawCall::SkinningMode::WithPrevBones : DrawCall::SkinningMode::Active;
drawCall.Surface.SkinningBones = info.SkinningBones;
drawCall.Surface.SkinningBonesOffset = info.SkinningBonesOffset;
drawCall.Surface.PrevBonesOffset = info.PrevBonesOffset;
drawCall.Surface.LODDitherFactor = (byte)(lodDitherFactor * 255);
drawCall.PerInstanceRandom = info.PerInstanceRandom;
drawCall.StencilValue = info.StencilValue;