I want to render Z-depth and use it for fog, Ive never done this before. Im using maya and combustion for comp.
I have several render layers of my objects. IIn another layer I want to have a simple greyscale rgb - no special Zdepth info ! Because I want to invert the images and multiply it over the other layers in combustion to achieve white or colored fog.
Is there a way to render this as a greyscale image sequence?
And I dont wanto render all the other objects and lights etc. because I already have them in my render layers just want to have one single greyscale image.
I hope you know what I mean, thanks.