Vray Next - reflections bug when "Visible to Reflection/Refraction" is turned off

[Alex_M]

There seems to be a bug in Vray Next where turning off "Visible to Reflection/Refraction" make objects reflect black color instead of the HDRI map in the dome light. I just installed 3.6 and everything works fine there. In my scene I have a chrome object, a VrayPlane object with reflections turned off and a dome light with an HDRI map. Rendering this results in black reflections where the VrayPlane is. Please check the attached image.

Is there a workaround for this? If not, I'll be forced to downgrade to 3.6 since the project I'm working on at the moment requires this to work properly.

[Svetlozar Draganov]

This is a known issue which is not yet addressed.
As a workaround try to exclude objects from VRay Properties > Reflect/Refract list, this should work fine until the fix comes out.

[Alex_M]

Thanks, I'll try.

[hristo.dimitrov]

The issue that we are aware is not exactly the same as the issue described here.
Please send us a simple scene with the issue to support@chaosgroup.com for investigation so we can address it as a bug in our system.

[Alex_M]

Ok, you should have received my email with the scene. Support ticket number is 343-899-529.

[fexmedia]

We are having the same issue with black reflections of a HDRI behind a studio with "visible in reflections/refraction" off. Is there already a solution? We are using Maya with VRay Next Hotfix 1.

[hristo.dimitrov]

This bug is not fixed yet but there is a workaround.
For each object that has a reflection, use Reflection exclude ... in V-Ray object properties and turn off the object that you do not want to be visible in the reflection.

[fexmedia]

I also tried that workaround, but the issue persists. Not sure if I did it right, wo I explain it in detail:

I have scene with a studio setup, the product sitting on a white background. To check the problem i created a mirror sphere (vraymtl, diffuse black, reflection white, glossiness 1, fresnel off). For that sphere I created an "object property" and under "Exclude list" I checked Use reflection Exclude list, same for refraction. In the list-set I only added the background plane. But still having black relections where the ground would be, instead of the desired HDRI-map of the domelight. Can't upload the scene right now since I had to downgrade to 3.6 because of a tight deadline. Is that the workaround you are talking about? For me it didn't work that way.

[hristo.dimitrov]

Actually, I just checked, this bug is fixed in Vray Next Update 1.1

[Arch.Hany]

its working for me :/

vray next update 1.1

[fexmedia]

Is it possible that it is only not working in scenes created with vray 3.6 and then opened with vray next?