nerd opened this issue on Jul 13, 2015 ยท 554 posts
bagginsbill posted Wed, 15 July 2015 at 2:23 PM
Yes - parameter modulation. I have it pretty straightforward in matmatic - one line of code, actually will make a PBR shader in Poser.
But - there's so much more than PBR. PBR doesn't do subsurface scattering. PBR doesn't do anisotropic reflections. PBR doesn't do refraction or volumes. All of these things are possible with Cycles!!!! PBR is the gaming boys catching up to US. We have had physically accurate for a long time.
Meanwhile, I think the PBR parameterization is excellent because it standardizes the PARAMETERS. The physics is assumed. So it's a really nice thing to work with. And look at all this detail packed into just a few texture maps - and it works perfectly in Poser, Daz, Blender - whatever. PBR is a great idea, but it doesn't cover everything I render. For SciFi helmets and guns, though ... awesome.
Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)