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VisualShaderNodeFaceForward¶
Inherits: VisualShaderNodeVectorBase < VisualShaderNode < Resource < RefCounted < Object
Returns the vector that points in the same direction as a reference vector within the visual shader graph.
Description¶
Translates to faceforward(N, I, Nref)
in the shader language. The function has three vector parameters: N
, the vector to orient, I
, the incident vector, and Nref
, the reference vector. If the dot product of I
and Nref
is smaller than zero the return value is N
. Otherwise, -N
is returned.