Bounty Object Mask

It creates random colors all of your objects in the scene and copy them to another scene. Use rendered image for postprocessing by selecting different objects easily.

http://www.yafaray.org/community/forum/viewtopic.php?f=13&t=4787&hilit=+passes

From Condar:

ObjectID Mask: Remove all lights from the scene, change all materials to Shiny Diffuse with Pure Black. Change the object you want to mask and set to Shiny Diffuse with Pure White and Emit = 1. Render with Direct lighting WITHOUT ambient Occlusion. three or four render passes with 2 AA samples per pass and threshold=0.003. The Blender version of ObjectID Mask is unusable due the lack of Antialiasing

Script sets 4 AA passes instead of 2.

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