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Merge branch 'master' into kimkulling/mikktspace_issue-2363

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Kim Kulling
2025-07-18 19:45:07 +02:00
committed by GitHub
parent 11899f0120 a79dc358cf
commit f56a0b4592
1126 changed files with 41188 additions and 15571 deletions
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14
code/PostProcessing/CalcTangentsProcess.cpp
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@@ -189,9 +189,9 @@ bool CalcTangentsProcess::ProcessMesh(aiMesh *pMesh, unsigned int meshIndex) {
tangent.x = (w.x * sy - v.x * ty) * dirCorrection;
tangent.y = (w.y * sy - v.y * ty) * dirCorrection;
tangent.z = (w.z * sy - v.z * ty) * dirCorrection;
bitangent.x = (- w.x * sx + v.x * tx) * dirCorrection;
bitangent.y = (- w.y * sx + v.y * tx) * dirCorrection;
bitangent.z = (- w.z * sx + v.z * tx) * dirCorrection;
bitangent.x = (w.x * sx - v.x * tx) * dirCorrection;
bitangent.y = (w.y * sx - v.y * tx) * dirCorrection;
bitangent.z = (w.z * sx - v.z * tx) * dirCorrection;
// store for every vertex of that face
for (unsigned int b = 0; b < face.mNumIndices; ++b) {
@@ -199,13 +199,15 @@ bool CalcTangentsProcess::ProcessMesh(aiMesh *pMesh, unsigned int meshIndex) {
// project tangent and bitangent into the plane formed by the vertex' normal
aiVector3D localTangent = tangent - meshNorm[p] * (tangent * meshNorm[p]);
aiVector3D localBitangent = bitangent - meshNorm[p] * (bitangent * meshNorm[p]) - localTangent * (bitangent * localTangent);
aiVector3D localBitangent = bitangent - meshNorm[p] * (bitangent * meshNorm[p]);
localTangent.NormalizeSafe();
localBitangent.NormalizeSafe();
// reconstruct tangent/bitangent according to normal and bitangent/tangent when it's infinite or NaN.
bool invalid_tangent = is_special_float(localTangent.x) || is_special_float(localTangent.y) || is_special_float(localTangent.z);
bool invalid_bitangent = is_special_float(localBitangent.x) || is_special_float(localBitangent.y) || is_special_float(localBitangent.z);
bool invalid_tangent = is_special_float(localTangent.x) || is_special_float(localTangent.y) || is_special_float(localTangent.z)
|| (-0.5f < localTangent.x && localTangent.x < 0.5f && -0.5f < localTangent.y && localTangent.y < 0.5f && -0.5f < localTangent.z && localTangent.z < 0.5f);
bool invalid_bitangent = is_special_float(localBitangent.x) || is_special_float(localBitangent.y) || is_special_float(localBitangent.z)
|| (-0.5f < localBitangent.x && localBitangent.x < 0.5f && -0.5f < localBitangent.y && localBitangent.y < 0.5f && -0.5f < localBitangent.z && localBitangent.z < 0.5f);
if (invalid_tangent != invalid_bitangent) {
if (invalid_tangent) {
localTangent = meshNorm[p] ^ localBitangent;