FacingRatio

This gizmo will render a facing ratio pass using a normal pass.It internally uses a dot product between a built-in render of camera normal and your normal pass.

You can tweak the result using a falloff slider and you have option to mess with your incoming normal.

The built-in render of camera normal should dynamically adapt to the resolution of your rendered normal pass.

Please visit my website at http://lucienfostier.com and send me some feedback.

v1.0 subject to and willing for improvements :-)

Please send me some feedback