Consider for antialiasing on Multimatte

[pjkw]

I would like to have a checkbox for "consider for antialiasing" on multimattes, similar to VrayExtraTex.

We often add content to displays afterwards and that means we need well antialiased masks which in some situation we're unable to get.
For example when adding content to a black iPhones display we leave the display black in the render, but since theres also a black border around the display (essentially you don't see where the screen ends if its not turned on) vray (correctly) doesn't sample the edge between the display and the border very well, which leaves us with grainy mattes to cut our screen content with.

Let me know if theres a workaround or something else Im missing.

[joconnell]

One sneaky way to force this is if you use an extra tex, put a solid white colour as your texture and use the include / exclude lists to pick your black screen object only. If you leave consider for anti aliasing on for this element, it'll see the visible edge between your white inner screen object and the black border object and that contrast will drive the anti aliaser to clean up that edge that wouldn't be visible to it otherwise.

[pjkw]

Yea Ive used extra tex aswell, in a more complicated way tho, forgot theres exclude/include for it. So thanks for that idea
Still think it would be nice to not have to trick vray into it tho

[joconnell]

Hmm - what could possibly work too is an extra tex with a multi sub tex with random colours from id 1 to 100, set to face id. In this way you'll get plenty of color contrast between each of your different matte id's from the multisub without needing to bother with include / exclude lists.

[Art48]

+1 Please add it to MM.

[vlado]

Ok, will see what can be done about it.

Best regards,
Vlado