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Add PackNormal/UnpackNormal and GetInt/SetInt to MeshAccessor

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This commit is contained in:
Wojtek Figat
2025-01-12 21:22:35 +01:00
parent 344d342610
commit d751c6a6c6
5 changed files with 90 additions and 15 deletions
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16
Source/Engine/Level/Actors/AnimatedModel.cpp
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@@ -653,9 +653,10 @@ void AnimatedModel::RunBlendShapeDeformer(const MeshBase* mesh, MeshDeformationD
{
const BlendShapeVertex& blendShapeVertex = q.First.Vertices[i];
Float3 normal = normalStream.GetFloat3(blendShapeVertex.VertexIndex) * 2.0f - 1.0f;
Float3 normal = normalStream.GetFloat3(blendShapeVertex.VertexIndex);
MeshAccessor::UnpackNormal(normal);
normal = normal + blendShapeVertex.NormalDelta * q.Second;
normal = normal * 0.5f + 0.5f; // TODO: optimize unpacking and packing to just apply it to the normal delta
MeshAccessor::PackNormal(normal); // TODO: optimize unpacking and packing to just apply it to the normal delta
normalStream.SetFloat3(blendShapeVertex.VertexIndex, normal);
}
}
@@ -667,18 +668,21 @@ void AnimatedModel::RunBlendShapeDeformer(const MeshBase* mesh, MeshDeformationD
auto tangentStream = accessor.Tangent();
for (uint32 vertexIndex = minVertexIndex; vertexIndex <= maxVertexIndex; vertexIndex++)
{
Float3 normal = normalStream.GetFloat3(vertexIndex) * 2.0f - 1.0f;
Float3 normal = normalStream.GetFloat3(vertexIndex);
MeshAccessor::UnpackNormal(normal);
normal.Normalize();
normal = normal * 0.5f + 0.5f;
MeshAccessor::PackNormal(normal);
normalStream.SetFloat3(vertexIndex, normal);
if (tangentStream.IsValid())
{
Float4 tangentRaw = normalStream.GetFloat4(vertexIndex);
Float3 tangent = Float3(tangentRaw) * 2.0f - 1.0f;
Float3 tangent = Float3(tangentRaw);
MeshAccessor::UnpackNormal(tangent);
tangent = tangent - ((tangent | normal) * normal);
tangent.Normalize();
tangentRaw = Float4(tangent * 0.5f + 0.5f, tangentRaw.W);
MeshAccessor::PackNormal(tangent);
tangentRaw = Float4(tangent, tangentRaw.W);
tangentStream.SetFloat4(vertexIndex, tangentRaw);
}
}