Attention: Here be dragons
This is the
(unstable) version of this documentation, which may document features
not available in or compatible with released stable versions of Godot.
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.