I'm developing a course on PBR materials using Substance 3D Painter. I'm finding the tutorials offered here to be excellent for introducing most concepts.
I haven't seen anything there addressing refraction maps. I'm about to look at some on YouTube, the most recent being about 6 months old. I'd like to ask this community though - is there something you would recomend?
Likewise emissive materials, if there's anything you like for those.
What shaders can use a transmissive channel?
Transmissive is currently unused by the default shaders and there is no support for refraction in Painter at the moment.
Thanks for that.
Does refraction work in Iray? I ask because this video seems to show refraction at work in Iray. It's a few years old though. It hasn't worked for me, but I guessed maybe it doesn't work with the environment background image, and I haven't built a model to test it.
I also noticed that some materials I see in videos have refraction parameters. I haven't found any that do though, and again those videos are probably a year old or older. Can I still create a material that has a refraction parameter? Of course I won't see refraction in Painter, maybe in Iray, or when the material is exported to another application?