Seperate the particles and projected image into two renders using two scanline render nodes. Then zmerge/deep them after you grade them.
On 18 August 2012 08:48, poiboy <[email protected]> wrote: > ** > Aloha e na po`e... > > SO question: > > I have a simple sprite based particle system emitting particlesa along the > ground. I have a separate premulted image projected on a card that is also > in the scene. I am using the projected image to render with the particles, > so that through the camera some of the particles pass behind the image and > in front of the image. However, i would like to be able to separate the > projected image from the particles after ti's been rendered through the > scan line renderer so that I can grade each piece of the image separately. > But the alpha for both the particles AND the projected premulted image are > passed through together. How would one be able to control which alpha came > through/rendered. I would like to be alble to grade the particles seprately > from the projected image. Any ideas? > > _______________________________________________ > Nuke-users mailing list > [email protected], http://forums.thefoundry.co.uk/ > http://support.thefoundry.co.uk/cgi-bin/mailman/listinfo/nuke-users >
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