Render Element Question

[james_hill]

Anyone know of a method to render an alpha/matte of an object hidden by others in a scene? For example, I want to later (in AE) highlight the entire box that is partially inside of the sphere. I can use a Multi-Matte pass but the sphere always covers it up, as expected. Any way to override that? Or another method without rendering the entire animation again?

[vladimir_krastev]

Hi, thanks for posting. The best method of doing this is rendering twice as far as I know.

[suzanne_doherty]

You might be able to use the Alpha pass, set the Alpha Contribution to 0 on the objects you don't want to see.

But I agree with Vladimir, it's probably easier just to re-render with only the object visible.