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API > API/Plugins > API/Plugins/GeometryCache > API/Plugins/GeometryCache/FGeomCacheTrackProxy
Description
Find the two frames closest to the given time InterpolationFactor gives the position of the requested time slot between the two returned frames. 0.0 => We are very close to OutFrameIndex 1.0 => We are very close to OutNextFrameIndex If bIsPlayingBackwards it will return exactly the same indexes but in the reversed order. The InterpolationFactor will also be updated accordingly
| Name | FindSampleIndexesFromTime |
| Type | function |
| Header File | /Engine/Plugins/Runtime/GeometryCache/Source/GeometryCache/Public/GeometryCacheSceneProxy.h |
| Include Path | #include "GeometryCacheSceneProxy.h" |
| Source | /Engine/Plugins/Runtime/GeometryCache/Source/GeometryCache/Private/GeometryCacheSceneProxy.cpp |
virtual void FindSampleIndexesFromTime
(
float Time,
bool bLooping,
bool bIsPlayingBackwards,
int32 & OutFrameIndex,
int32 & OutNextFrameIndex,
float & InInterpolationFactor
)
Parameters
| Name | Remarks |
|---|---|
| Time | (Elapsed)Time to check against |
| bLooping | Whether or not the animation is being played in a loop |
| bIsPlayingBackwards | Whether the animation is playing backwards or forwards |
| OutFrameIndex | The closest frame index that corresponds to the given time |
| OutNextFrameIndex | The frame index that follows OutFrameIndex |
| InterpolationFactor | The interpolation value between the two frame times |