Category: "RSL"

Creating multiple masks with Renderman

August 31st, 2008

 This tip describes how to create multiple masks with Renderman. This technique comes to expand the simple RGBA as masks technique.
The problem with masks is usually anti-aliasing. If you use an object channel, it can only have a discreet value for each pixel, meaning the each pixel can hold only one object id value (as demonstrated in the image below,) and this means no anti-aliasing.

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