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Adding an opacity channel

Adding an opacity channel: Substance Painter: Petrol Pump Game Asset
Adding an opacity channel: Substance Painter: Petrol Pump Game Asset

Opacity is something taken for granted in offline rendering, but in a game engine, we sometimes need to specifically set up an Opacity channel and then enable it. This indeed, is the case in painter where we need to choose from either the alpha blending or alpha test shaders, as well as set up a new opacity channel to use.

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