Substance Painter : How to Bake an Opacity Map

Final Result on Sketchfab : https://skfb.ly/6SVqH
1/ Bake only the Normal Maps without diffusion (Dilation, padding, etc).
2/ Export this Normal Map to Photoshop, change the color layer to white, the background to black. Export this as an opacity map.
3/ Bake all the Mesh Maps and the the Normal Map again, but with bleeding this time (diffusion / padding)
4/ Import into Substance Painter's Shelf the Opacity map that you just made in Photoshop.
5/ In Substance Painger, add a Texture Set Settings : Opacity
6/ Change Substance's display Shader Settings to "pbr-metal-rough-with-[...]"

Видео Substance Painter : How to Bake an Opacity Map канала Han Solo