For rendering with Vray you can use maps exported from Substance Painter or the Substance plugin. In order to render with Vray from Substance Painter's default metal/rough shader, the Substance outputs will need to be converted to inputs that can be used with the Vray material. You will need the following maps:
These maps can only be converted from the metallic/roughness workflow which is the default workflow in both Substance Designer and Substance Painter.
- Export maps from Substance Painter using the Vray preset to create the converted maps from metal/rough.
- For custom Substances, you can use the basecolor_metallic_roughness converted node set to the Vray preset to create the custom outputs.
- The current 3ds Max plugin contains a script to easily convert the Substance to a Vray material.
- In Maya, convert the Substance outputs in the shader graph or use a blended material with the metallic map as the mask.