View Full Version : camera output shader question

05 May 2009, 10:33 PM
what's the difference between connecting lens shaders to the camara lense shader slot and the camera output shader slot?

what is this output shader for exactly?

05 May 2009, 10:16 PM
A lens shader is used to modify the ray which is sent into the scene at rendertime and works like other rendershaders on a per sample basis. e.g. if the ray is manipulated it can look like an fisheye.

An output shader can modify the final image(s) and works on a per pixel basis what means after the image is filtered. e.g with an output shader you can add motionblur to your image based on an motion vector image.

An output shader is more like a non interactive compositing tool. In theory it would be possible to built a complete compositing package based on mentalray with output shaders. Would be interesting....

05 May 2009, 02:49 PM
ok that's clear thanks alot

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05 May 2009, 02:49 PM
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