Hi! My setup is 3dsMax2019, last exporter, and glTF format. Using an Arnold Standard Surface material, I haven’t any issue using an albedoTexture with alpha :+1:t5: [image] But if I use a Physical Material, alpha convention isn’t the same (as gltf I suppose?), and the result once in BJS is that a…

Hi @Vinc3r , I believe the alpha transparency convention is different between the material models. From what I gather, Physical Material uses Transparency, where 255 = transparent, 0 = opaque, while Arnold Standard surface uses opacity where 255 = opaque, 0 = transparent. Though I am not 100% on th…

That makes sense, thanks. I’m not used to Arnold so here a very simple and ugly render: [image] Arnold Standard Surface to the left, Physical Material to the right [image]

3dsMax exporter, Physical Material, and inverted alpha convention

Questions

Evgeni_Popov January 22, 2021, 4:32pm 2

Adding @Guillaume_Pelletier in case he has a clue.

Glass material problem

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3dsMax exporter, Physical Material, and inverted alpha convention

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