C++ USkeletalMesh::CalculateInvRefMatrices方法代码示例

PyObject *py_ue_skeletal_mesh_set_skeleton(ue_PyUObject * self, PyObject * args)
{
	ue_py_check(self);

	PyObject *py_skeleton;
	if (!PyArg_ParseTuple(args, "O:skeletal_mesh_set_skeleton", &py_skeleton))
		return nullptr;

	USkeletalMesh *mesh = ue_py_check_type<USkeletalMesh>(self);
	if (!mesh)
		return PyErr_Format(PyExc_Exception, "UObject is not a USkeletalMesh.");

	USkeleton *skeleton = ue_py_check_type<USkeleton>(py_skeleton);
	if (!skeleton)
		return PyErr_Format(PyExc_Exception, "argument is not a USkeleton.");

	mesh->ReleaseResources();
	mesh->ReleaseResourcesFence.Wait();

	mesh->Skeleton = skeleton;

	mesh->RefSkeleton = skeleton->GetReferenceSkeleton();

	mesh->RefBasesInvMatrix.Empty();
	mesh->CalculateInvRefMatrices();

#if WITH_EDITOR
	mesh->PostEditChange();
#endif
	mesh->InitResources();
	mesh->MarkPackageDirty();

	Py_RETURN_NONE;
}

//.........这里部分代码省略.........
			FStaticLODModel& LODModel = *new (ImportedResource->LODModels) FStaticLODModel();

			SkeletalMesh->LODInfo.Empty();
			SkeletalMesh->LODInfo.AddZeroed();
			SkeletalMesh->LODInfo[0].LODHysteresis = 0.02f;
			FSkeletalMeshOptimizationSettings Settings;
			// set default reduction settings values
			SkeletalMesh->LODInfo[0].ReductionSettings = Settings;

			// Create initial bounding box based on expanded version of reference pose for meshes without physics assets. Can be overridden by artist.
// 			FBox BoundingBox(SkelMeshImportDataPtr->Points.GetData(), SkelMeshImportDataPtr->Points.Num());
// 			FBox Temp = BoundingBox;
// 			FVector MidMesh = 0.5f*(Temp.Min + Temp.Max);
// 			BoundingBox.Min = Temp.Min + 1.0f*(Temp.Min - MidMesh);
// 			BoundingBox.Max = Temp.Max + 1.0f*(Temp.Max - MidMesh);
// 			// Tuck up the bottom as this rarely extends lower than a reference pose's (e.g. having its feet on the floor).
// 			// Maya has Y in the vertical, other packages have Z.
// 			//BEN const int32 CoordToTuck = bAssumeMayaCoordinates ? 1 : 2;
// 			//BEN BoundingBox.Min[CoordToTuck]	= Temp.Min[CoordToTuck] + 0.1f*(Temp.Min[CoordToTuck] - MidMesh[CoordToTuck]);
// 			BoundingBox.Min[2] = Temp.Min[2] + 0.1f*(Temp.Min[2] - MidMesh[2]);
// 			SkeletalMesh->Bounds = FBoxSphereBounds(BoundingBox);

			// Store whether or not this mesh has vertex colors
// 			SkeletalMesh->bHasVertexColors = SkelMeshImportDataPtr->bHasVertexColors;

			// Pass the number of texture coordinate sets to the LODModel.  Ensure there is at least one UV coord
			LODModel.NumTexCoords = 1;// FMath::Max<uint32>(1, SkelMeshImportDataPtr->NumTexCoords);


			// Create the reference skeleton and update LOD0
			FReferenceSkeleton& RefSkeleton = SkeletalMesh->RefSkeleton;
			HierarchyBuilder.CopyToRefSkeleton(RefSkeleton);
			SkeletalMesh->CalculateRequiredBones(LODModel, RefSkeleton, /*BonesToRemove=*/ nullptr);
			SkeletalMesh->CalculateInvRefMatrices();

			// Initialize the skeleton asset
			EntitySkeleton->MergeAllBonesToBoneTree(SkeletalMesh);

			// Point the mesh and skeleton at each other
			SkeletalMesh->Skeleton = EntitySkeleton;
			EntitySkeleton->SetPreviewMesh(SkeletalMesh);

			// Create the animations
			for (const FSpriterAnimation& Animation : Entity.Animations)
			{
				//@TODO: That thing I said...

				const FString TargetAnimationName = Animation.Name;
				const FString TargetAnimationPath = LongPackagePath / TEXT("Animations");
				UAnimSequence* AnimationAsset = CastChecked<UAnimSequence>(CreateNewAsset(UAnimSequence::StaticClass(), TargetAnimationPath, TargetAnimationName, Flags));

				AnimationAsset->SetSkeleton(EntitySkeleton);

				// if you have one pose(thus 0.f duration), it still contains animation, so we'll need to consider that as MINIMUM_ANIMATION_LENGTH time length
				const float DurationInSeconds = Animation.LengthInMS * 0.001f;
				AnimationAsset->SequenceLength = FMath::Max<float>(DurationInSeconds, MINIMUM_ANIMATION_LENGTH);

				const bool bSourceDataExists = (AnimationAsset->SourceRawAnimationData.Num() > 0);
				TArray<struct FRawAnimSequenceTrack>& RawAnimationData = bSourceDataExists ? AnimationAsset->SourceRawAnimationData : AnimationAsset->RawAnimationData;




				int32 TotalNumKeys = 0;
				for (const FSpriterTimeline& Timeline : Animation.Timelines)
				{