Render layer question

[Yan]

Hi!

This may be a newbie question....I have an animation that I already rendered and now I need a mask for one object in the animation (a sphere).

Can I render just the mask of the object without the beauty in order to speed up the render? It's working in the live viewer, but when I start the picture viewer render it seems to render the beauty and after that the mask. I want just the mask.

Thank you!

[aoktar]

Yes, it should work without beauty passes. Because it's for isolating the some objects from rest of scene.