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<?xml version="1.0" encoding="UTF-8" ?>
<class name="VisualShaderNodeFaceForward" inherits="VisualShaderNodeVectorBase" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
<brief_description>
Returns the vector that points in the same direction as a reference vector within the visual shader graph.
</brief_description>
<description>
Translates to [code]faceforward(N, I, Nref)[/code] in the shader language. The function has three vector parameters: [code]N[/code], the vector to orient, [code]I[/code], the incident vector, and [code]Nref[/code], the reference vector. If the dot product of [code]I[/code] and [code]Nref[/code] is smaller than zero the return value is [code]N[/code]. Otherwise, [code]-N[/code] is returned.
</description>
<tutorials>
</tutorials>
</class>
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