How to make Decals Work on Mobile

Development Rendering
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1

I’ve created two decal materials that I’ve tried setting to Transparent/Transparent and Transparent/DBufferTransparentColor. Both varieties above work fine when I preview in the editor, but neither work when I package and run on Android. If someone can tell me the steps they took to make it work, that would be awesome.

Second question - is it worth getting decals working? Meaning, will they degrade performance enough that I shouldn’t bother? I have a game where the background grunge/damage increases during game-play and it seemed a nice way to do it without having a bunch of static textures. However, if it will kill performance, I’ll spend a few days in 3DCoat creating a bunch of variations. As always, any help is greatly appreciated.

2

The more I think about it, there has to be a performance hit. Given that optimization has to always be near the top of our priority list when developing for mobile, I’m going to develop a clean texture and a super-grungy one in 3dCoat. Then I’ll just LERP between the two in a surface material instance and forget about decals.