Render Masks

[RobSteady]

Is there any way to render out masks for specific objects (black and white)?
I know I can select objects via Mat ID Channel in Photoshop but for very small and detailed Objects it doesn't work.

Thanks.

[truerender]

I want black and white mask too.

[gueoct]

Is there any way to render out masks for specific objects (black and white)?
I know I can select objects via Mat ID Channel in Photoshop but for very small and detailed Objects it doesn't work.

You are so right; it does not work. it´s impossible to get a clean selection!

[DIO]

An RGB Mask like the multimatte render element would be fantastic, to be able to choose which
material or object ID is on which channel.

The current Material ID option is useless for animation.
I´m rendering my masks with selfilluminating red, green and blue materials with scanline ... pretty annoying.