[Bf-committers] support internal transmissivity and total internal reflection

Ed Halley ed at halley.cc
Wed Dec 28 06:45:54 CET 2005

A patch has been implemented, tested and uploaded.


A detailed writeup with samples is on the wiki.


This patch cleanly supports the material property of transmissivity (aka 
transmittance), the relative filtering of light over varying thickness. 
This supports it for raytracing, ztransparency, and for transparent shadows.

This patch ALSO adds or improves the handling of total internal 
reflection, the case where a ray could not leave a dense material due to 
its shallow incident angle.

[ e d @ h a l l e y . c c ]

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