How to use an object as mask

#1

Hi,

Lets say I have a mask object. This mask object must prevent the pixels being rendered behind itself. How can i get this effect?

Thanks.

#2

I’m not in front of XSI right now, but I recently did this (normally called a black hole shader) using one of the new mental ray mip (production) shaders.

#3

There’s a matte shadow shader, but i think i is a bit hidden away. Not sure why, maybe they were embarrassed that it had taken so long to code one :slight_smile:

Go into the Softimage\Data\DSPresets\Shaders\Material\mental images dir theres a file called mip_Matte_Shadow.Preset, it has heaps of options for a matte material.

#4

Thank you very much, it was very helpful

#5

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