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API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/FExpressionSkyLightEnvMapSample
References
| Module | Engine |
| Header | /Engine/Source/Runtime/Engine/Public/MaterialHLSLTree.h |
| Include | #include "MaterialHLSLTree.h" |
FExpressionSkyLightEnvMapSample
&40;
const FExpression &42; InDirectionExpression,
const FExpression &42; InRoughnessExpression
&41;