Author Topic: PBR Spec Gloss or spec Gloss workflow?  (Read 1559 times)

Hi guys,

I'm having trouble figuring out the difference between PBR Spec Gloss and spec Gloss is?

The first thing that comes to mind is that one is based on physical lights and the other is not, seems obvious. However since we are creating the same texture maps how can than this be done. Surely PBR spec gloss is the same as PBR Metallic/rough, no?

The reason I'm researching this topic is for rendering in Maya using Mental ray and so therefore I have to use the spec gloss workflow.

Thanks to anyone who helps. :)

The spec gloss shader doesn't light the object using the environment map but just a single directional light.
There is also no energy conservation and there is no way to create reflective looking surfaces since the environment is not sampled or reflected.