Physically Based Materials in 3.5? ?

[landrvr1]

Is this actual support for PBR? The new 3.5 features list PHYSICALLY-BASED MATERIALS, but I'm thinking it's just marketing-speak?

[vlado]

All V-Ray materials are physically-based.

The fact that someone decided to use the "PBR" abbreviation to mean something else, doesn't mean that all other materials everywhere suddenly cease to be physical.

Best regards,
Vlado

[landrvr1]

lol. Nice.

[Dariusz Makowski (Dadal)]

Priceless....

[Morbid Angel]

Priceless....

But I want pbr on unbiased mtl with ppt?!

[^Lele^]

All V-Ray materials are physically-based.

The fact that someone decided to use the "PBR" abbreviation to mean something else, doesn't mean that all other materials everywhere suddenly cease to be physical.

https://media.giphy.com/media/1Z02vuppxP1Pa/giphy.gif

[Mokiki]

Slightly related though. Are there any plans to allow straight metal/roughness maps from packages like substance designer/painter. Or would the inclusion of those maps screw with the vraymtl?

[vlado]

In terms of roughness, there is a checkbox in the VRayMtl material in V-Ray 3.5 whether it should use roughness or glossiness.

I'm still contemplating the metalness. It's generally a non-physical parameter. Metals and non-metals behave very differently and a blend between them makes no sense. The original alSurface material got this right by having a switch from dielectric to metal mode, and we'll implement something similar into the VRayALSurface port at some point.

Best regards,
Vlado

[Mokiki]

Thanks for the info Vlado. Luckily substance designer and painter have tools available to convert metal roughness to spec gloss. This whole thing would just be a convenience issue I guess.