mental Ray occlusion: dont self shade?

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Old 08 August 2007   #1
mental Ray occlusion: dont self shade?


i am just trying to render an occlusion pass with mr, where i have stand in geometry for the background.

since i want to composit that result over live footage, i dont want the stand in objects to shade themselves (e.g. a stair where the steps shade themselves in the edges.. that would result in double occlusion: the real one and the rendered one).

i saw the Id_nonself in the mib_amb_occlusion shader but i really have no idea how it works.
no matter what i enter there the rendering stays the same.

any clues or hints?


"A computer program does what you tell it to do, not what you want it to do." Greer's Third Law.
Old 08 August 2007   #2
ok.. found the solution.. but not thanks to the documentation


"A computer program does what you tell it to do, not what you want it to do." Greer's Third Law.

Last edited by alexx : 08 August 2007 at 05:33 PM.
Old 08 August 2007   #3
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