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API > API/Runtime > API/Runtime/Engine > API/Runtime/Engine/FExpressionParameter
- FExpression::GetPreviewExpression()
- FExpressionParameter::GetPreviewExpression()
References
| Module | Engine |
| Header | /Engine/Source/Runtime/Engine/Public/MaterialHLSLTree.h |
| Include | #include "MaterialHLSLTree.h" |
| Source | /Engine/Source/Runtime/Engine/Private/Materials/MaterialHLSLTree.cpp |
virtual const FExpression * GetPreviewExpression
(
FTree & Tree
) const
Remarks
Non-numeric expressions need to override and return numeric preview expressions. Returns this expression itself by default