hello, here is my shader to paint unlit with alpha test support
https://share.substance3d.com/libraries/6773To work with it u just need to 0) Copy it to ..\Allegorithmic\Substance Painter\resources\shelf\allegorithmic\shaders
1) select the shader 2) add opacity channel 3) add fill layer with zero trancparency
and instantiate it over all of your sets
check this out
