<?xml version="1.0" encoding="UTF-8" ?> <class name="VisualShaderNodeFaceForward" inherits="VisualShaderNode" version="4.0"> <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> <methods> </methods> <constants> </constants> </class>