42 lines
1.1 KiB
Ucode
42 lines
1.1 KiB
Ucode
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/**
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* Copyright 1998-2013 Epic Games, Inc. All Rights Reserved.
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*/
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/**
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* Allows the artists to quickly set up a Fresnel term. Returns:
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*
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* pow(1 - max(Normal dot Camera,0),Exponent)
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*/
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class MaterialExpressionFresnel extends MaterialExpression
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native(Material)
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collapsecategories
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hidecategories(Object);
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/** The exponent to pass into the pow() function */
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var() float Exponent;
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/** The normal to dot with the camera vector */
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var ExpressionInput Normal;
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cpptext
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{
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virtual INT Compile(FMaterialCompiler* Compiler, INT OutputIndex);
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virtual FString GetCaption() const
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{
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return FString(TEXT("Fresnel"));
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}
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/**
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* Replaces references to the passed in expression with references to a different expression or NULL.
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* @param OldExpression Expression to find reference to.
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* @param NewExpression Expression to replace reference with.
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*/
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virtual void SwapReferenceTo(UMaterialExpression* OldExpression,UMaterialExpression* NewExpression = NULL);
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}
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defaultproperties
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{
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Exponent=3.0
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MenuCategories(0)="VectorOps"
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}
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