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Add correction of fbx model rotation (#5494)

pull/5491/head^2
Kim Kulling 2024-03-17 17:46:28 +01:00 committed by GitHub
parent 727774f181
commit fcb1444b84
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GPG Key ID: B5690EEEBB952194
1 changed files with 49 additions and 0 deletions
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49
code/AssetLib/FBX/FBXConverter.cpp
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@ -76,6 +76,53 @@ using namespace Util;
#define CONVERT_FBX_TIME(time) static_cast<double>(time) / 46186158000LL
static void correctRootTransform(const aiScene *scene) {
if (scene == nullptr) {
return;
}
if (scene->mMetaData == nullptr) {
return;
}
int32_t UpAxis = 1, UpAxisSign = 1, FrontAxis = 2, FrontAxisSign = 1, CoordAxis = 0, CoordAxisSign = 1;
double UnitScaleFactor = 1.0;
for (unsigned MetadataIndex = 0; MetadataIndex < scene->mMetaData->mNumProperties; ++MetadataIndex) {
if (strcmp(scene->mMetaData->mKeys[MetadataIndex].C_Str(), "UpAxis") == 0) {
scene->mMetaData->Get<int32_t>(MetadataIndex, UpAxis);
}
if (strcmp(scene->mMetaData->mKeys[MetadataIndex].C_Str(), "UpAxisSign") == 0) {
scene->mMetaData->Get<int32_t>(MetadataIndex, UpAxisSign);
}
if (strcmp(scene->mMetaData->mKeys[MetadataIndex].C_Str(), "FrontAxis") == 0) {
scene->mMetaData->Get<int32_t>(MetadataIndex, FrontAxis);
}
if (strcmp(scene->mMetaData->mKeys[MetadataIndex].C_Str(), "FrontAxisSign") == 0) {
scene->mMetaData->Get<int32_t>(MetadataIndex, FrontAxisSign);
}
if (strcmp(scene->mMetaData->mKeys[MetadataIndex].C_Str(), "CoordAxis") == 0) {
scene->mMetaData->Get<int32_t>(MetadataIndex, CoordAxis);
}
if (strcmp(scene->mMetaData->mKeys[MetadataIndex].C_Str(), "CoordAxisSign") == 0) {
scene->mMetaData->Get<int32_t>(MetadataIndex, CoordAxisSign);
}
if (strcmp(scene->mMetaData->mKeys[MetadataIndex].C_Str(), "UnitScaleFactor") == 0) {
scene->mMetaData->Get<double>(MetadataIndex, UnitScaleFactor);
}
}
aiVector3D upVec, forwardVec, rightVec;
upVec[UpAxis] = UpAxisSign * static_cast<float>(UnitScaleFactor);
forwardVec[FrontAxis] = FrontAxisSign * static_cast<float>(UnitScaleFactor);
rightVec[CoordAxis] = CoordAxisSign * (float)UnitScaleFactor;
aiMatrix4x4 mat(rightVec.x, rightVec.y, rightVec.z, 0.0f,
upVec.x, upVec.y, upVec.z, 0.0f,
forwardVec.x, forwardVec.y, forwardVec.z, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f);
scene->mRootNode->mTransformation *= mat;
}
FBXConverter::FBXConverter(aiScene *out, const Document &doc, bool removeEmptyBones) :
defaultMaterialIndex(),
mMeshes(),
@ -133,6 +180,8 @@ FBXConverter::FBXConverter(aiScene *out, const Document &doc, bool removeEmptyBo
// need not contain geometry (i.e. camera animations, raw armatures).
if (out->mNumMeshes == 0) {
out->mFlags |= AI_SCENE_FLAGS_INCOMPLETE;
} else {
correctRootTransform(mSceneOut);
}
}