Ratio, from 0 to 1, that this surface is facing the camera.
Returns flat normals to give a polygonal, faceted look. Plug this into the Override node (after PBR) to achieve the effect.
Returns the view vector reflected over the surface normal.
Returns the view vector refracted through the surface.
Returns the projected UV coordinate when used with Loop ( Triplanar UV ).
Direction vector from the surface position to the camera.
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