Getting rid of Specular? ( vray )

#1

Pretty sick of the way it looks, sick of getting blackness from bright objects, I’d really like the option to raytrace glossy reflections all the way to 0.0, instead of being switched to Spec at about 0.7. If you have a gloss map that ranges from 0.6 to 0.8, you’ll get an obvious line wherever it hits the threshold and switches from raytrace to spec, or vice versa.

Switching off spec in lights does not turn on raytrace reflection in its place, it just reduces the total reflectance

Is there a switch I’m missing or node I don’t know about? As far as I can tell, there’s absolutely no way to trace rough reflections with the VrayMtl. Maybe worth learning to write a simple OSL shader just to do this.

#2

I really never experienced such problem, the Vray material is really versatile, maybe something went wrong on your installation.

#3

@guccione My understanding was that the spec part in vray is raytraced and not a fake reflection. I certainly could be wrong about this but the way I understood it was that it is part of the MIS sampling and they work as a combination. Ie one is results of sampling the light source and one is results of sampling the BRDF.

Would need a vray dev to confirm/deny that.

Best,

RIchard

#4

It’s not a problem, it’s just the way Vray is designed to render, and it saves lots of render time, which is great if you don’t mind the way Spec looks monochrome, ignores objects and only has 1 effective bounce.

#5

Depends on your definition of “fake” I guess, but it doesn’t raytrace / reflect objects, not even a self illuminated object set to a million will show up in it.

#6

WOW what a brain-fart. Of course vray traces all objects incl. self illumination all the way down to 0.0 glossiness. I must have been smoking some great stuff that day.

It just won’t do that with lights, you have to replace them with luminous cards ( which I’ve actually done before )

But even that is a constant irritant - death to spec!!