Forgive my tired and foggy brain… I want to render an interior using sunlight and VraySky. And I want the window glass to be invisible to the VraySky skylight. (not the Sun, Sun is working fine through glass) I want to comp in a background photo later of the view out the window, so I need to rende…

Was trying to work this out myself yesterday. Im sure in the past it was as simple as using environment refraction override in the render settings, but it’s been a while since i had to do it. Need to know also.

I’m not in front of a computer right now so I may be remembering wrong but… make vray override material with your normal glass in the base slot and copy that glass into the refraction slot. For the new refraction glass, add an environment override of vray color set to black. You may need to make …

[image] Interior lit by HDRI DomeLight - am I insane? I’m not in front of a computer right now so I may be remembering wrong but… make vray override material with your normal glass in the base slot and copy that glass into the refraction slot. For the new refraction glass, add an environment ov…

Just checked this in front of a computer… it works for me just creating an override material that has a a duplicate glass in the refraction slot and a black color in the environment slot. Is your glass by any chance a single plane? This seems to kill it working for me. As long as the glass is a …

worked!!! Silly me - I forgot to turn off the environment overrides - now it is working as planned. The only minor hassle is seeing though on open door - but that was easily fixed by creating a distant box with a similar material. Can’t thank you enough mate - really appreciated.

Glad to help. I struggled years ago to find a solution to this for just the reasons you mentioned. I think this was before the override material was available so I never got a suitable solution.

Well this is awesome, no fudge second pass with hacks to get the glass right - I have a climbing vine backlit in the sun seen both through window glass and through an open door, and this was needing a bunch of special attention… not anymore. Have I thanked you recently enough? So including HAL9000…

This is exactly what I need, but I’m using a dome light with HDRI and the above solution doesn’t seem to work. I want the HDRI visible in all object reflections (i.e. floor, polished marble worktops etc) but I want the glass to just have a solid black colour. If not, then you get that horrible ha…

But isn’t this correct? The windows need to reflect something besides black otherwise the opposite would happen, you’d end up with the windows reflecting the interior of the room with black holes where the window reflections are. IMO this will look wrong when you try to comp in the background as …

You’re correct, it is technically correct, the main problem is with the HDRI itself, being half sky, half black. It would be more consistent for the comp if it was all black. Otherwise I get the inverse again, if I comp into that as it is, then the lower half of the backplate becomes much darker t…

How to make glass render black environment with VRay sky?

V-Ray V-Ray for 3ds Max General

davexl April 4, 2016, 12:55am 4

Cannot get it to work, I tried with and without checking not visible to refraction (have to leave reflection on, as it is needed)

(But thank you for the tip, I had completely forgotten the override material - it has given me some ideas to try.)

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How to make glass render black environment with VRay sky?

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