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API > API/Developer > API/Developer/NaniteUtilities > API/Developer/NaniteUtilities/FDisplacementMap
Description
Hierarchical sample warping for perfect importance sampling according to probability density represented by image (not required to be normalized). [ Clarberg, et al., "Wavelet importance sampling: efficiently evaluating products of complex functions" ]
| Name | WarpSample |
| Type | function |
| Header File | /Engine/Source/Developer/NaniteUtilities/Public/DisplacementMap.h |
| Include Path | #include "DisplacementMap.h" |
| Source | /Engine/Source/Developer/NaniteUtilities/Private/DisplacementMap.cpp |
FVector2f WarpSample
(
const FVector2f & UV
) const