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Unreal Engine C++ API Reference > Runtime > Engine > FAnimationRuntime
References
| Module | Engine |
| Header | /Engine/Source/Runtime/Engine/Public/AnimationRuntime.h |
| Include | #include "AnimationRuntime.h" |
| Source | /Engine/Source/Runtime/Engine/Private/Animation/AnimationRuntime.cpp |
static const FTransform & GetComponentSpaceTransformWithCache
&40;
const FReferenceSkeleton & InRefSkeleton,
const TArray< FTransform > & InBoneSpaceTransforms,
int32 BoneIndex,
TArray< FTransform > & CachedTransforms,
TArray< bool > & CachedTransformReady
&41;
Remarks
Calculate the component-space bone transform for the specified bone. This is similar to GetComponentSpaceTransform(), but uses a cached array of transforms to prevent re-calculations when requesting transforms for multiple bones with shared parents. This is only likely to be more efficient than FillUpComponentSpaceTransforms if you only need a relatively small number of bone transforms.
Parameters
| Name | Description |
|---|---|
| InRefSkeleton | The bone hierarchy |
| InBoneSpaceTransforms | Bone-space transforms for all bones in the hierarchy |
| BoneIndex | We calculate the component-space transform of this bone |
| CachedTransforms | An array of transforms which holds the transforms of any bones whose transforms have been previously calculated. Should be initialized with CachedTransforms.SetNumUninitialized(BoneSpaceTransforms.Num()) before first use. |
| CachedTransformReady | An array of flags indicating which bone transforms have been cached. Should be initialized with CachedTransformReady.SetNumZeroed(BoneSpaceTransforms.Num()) before first use. |