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15 lines
788 B
XML
15 lines
788 B
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="VisualShaderNodeFaceForward" inherits="VisualShaderNode" version="4.0">
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<brief_description>
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Returns the vector that points in the same direction as a reference vector within the visual shader graph.
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</brief_description>
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<description>
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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.
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</description>
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<tutorials>
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</tutorials>
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<methods>
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</methods>
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<constants>
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</constants>
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</class>
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