Substance materials in 3ds Max with Redshift IPR render
I have never been able to use Substances inside of 3ds Max with the Redshift renderer and IPR correctly. Your documentation says it's supported but it does not work and the Redshift developers claim in their forum that they are waiting for Substance developers to make the next move.
https://www.redshift3d.com/forums/viewthread/26393/
Please fix this!
