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Fix: Add missing transformation for normalized normals.

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This commit is contained in:
Kim Kulling
2023-10-29 10:05:25 +01:00
committed by Kim Kulling
parent c44e3427aa
commit 25aee03f66
1 changed files with 4 additions and 7 deletions
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code/PostProcessing/PretransformVertices.cpp
+4 -7
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@@ -290,12 +290,6 @@ void PretransformVertices::ComputeAbsoluteTransform(aiNode *pcNode) {
}
}
static void normalizeVectorArray(aiVector3D *vectorArrayIn, aiVector3D *vectorArrayOut, size_t numVectors) {
for (size_t i=0; i<numVectors; ++i) {
vectorArrayOut[i] = vectorArrayIn[i].Normalize();
}
}
// ------------------------------------------------------------------------------------------------
// Apply the node transformation to a mesh
void PretransformVertices::ApplyTransform(aiMesh *mesh, const aiMatrix4x4 &mat) const {
@@ -322,8 +316,11 @@ void PretransformVertices::ApplyTransform(aiMesh *mesh, const aiMatrix4x4 &mat)
const aiMatrix3x3 m = aiMatrix3x3(mat).Inverse().Transpose();
if (mesh->HasNormals()) {
normalizeVectorArray(mesh->mNormals, mesh->mNormals, mesh->mNumVertices);
for (unsigned int i = 0; i < mesh->mNumVertices; ++i) {
mesh->mNormals[i] = (m * mesh->mNormals[i]).Normalize();
}
}
if (mesh->HasTangentsAndBitangents()) {
for (unsigned int i = 0; i < mesh->mNumVertices; ++i) {
mesh->mTangents[i] = (m * mesh->mTangents[i]).Normalize();