I am trying to create a mask for a decal but I can’t find the way to do it.
In decal’s object properties the “visible in masks” is checked. In assigned material everything look normal.
The decal is visible in beauty and reflection elements. However, no matter what mask I am trying to create (RGB, Monochromatic, Wirecolour, MaskID), it doesn’t show up.
Sorry, i confused masks with alpha channel, however i tried quickly to setup basic scene and i was able to get distinct decal mask in CMasking_ID with Instance ID mode. Can you try this and see if it works for you?
I’m not sure if it works only in this setup, it was the first thing that i tried and it worked - i didn’t look further. Is there a reason why CMasking_ID is not good enough in your case?
According to my tests, RGB, monochromatic, wirecolour and ID (with Material ID selected) don’t work. Which they should. Sure, Mask ID (with instance ID selected) can do the job but that doesn’t mean this isn’t something that has to be checked and possible be fixed. What if I had to make RGB masks for animation for example?
You’re welcome! I don’t have time to check other options now, but if you think that some masking options should work with decals, but they doesn’t, you can report this in bug reporting board here on the forum, or open support ticket at Chaos help portal https://support.chaos.com/hc/en-us/requests/new and the team will look at the issue.