Inherits: VisualShaderNode < Resource < Reference < Object
Returns the vector that points in the same direction as a reference vector within the visual shader graph.
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
Nref is smaller than zero the return value is
-N is returned.