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PBR Texture maps to Principal shader?

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Hi,

Can someone tell me how to link substance painter generated PBR texture maps (albedo/transparency, Metallic/Smoothness, Normal) to Principled Shader?

I have Albedo, Metallness, Roughness, and Normal maps. I linked Albedo to base color on the surface textures tab and it seems to work fine along with the normal map on the Bumps & Normals tab.

My problem is with metallic and roughness. If I link these to the corresponding channels on the Surface textures map, it is not rendered correctly. Metalness is not visible at all and roughness is also incorrect.

What is the proper way to use these maps?

Thanks a lot for any advice!

 

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If you install substance plugin for Houdini, you could take a look into: $HOME/houdini16.0/dso/substance/SubstanceToPrincipled.cfg. You have a mapping with parms and textures there. 

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make sure you have set the Shaders parameters: roughness and metallic both to 1 on the principled shader!

Otherwise it will output 0 for metallic and 0.3 x the texture for roughness. 

Edited by Doudini

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