Hi community,
i encountered some strange behavior i can't figure out whether it's intended engine behavior, my stupidness or maybe a buggy thing.
I have a fairly simple dark Studio Setup (sorry for the small render crops but everything is under NDA).
Because of the shape of the product i need to place a light underneath the floor to get the reflection on the product as i want it.
There is some action going on on the floor i cant make the floor refractive as you would do it in real life.
- Therefore i excluded the Floor from the Vray light underneath which works perfectly on CPU (you have to turn on Reflective Caustics in GI to make it work). See Picture 1
- But when i change to GPU with the same settings the bottom light is not showing up anymore in the reflections of the object. See Picture 2
- What irritates me is that you can see the setup behaving properly while calculating the lightcache. But when the renderpass starts its not there? See Picture 3
- No matter what combination i'm trying, ie. turn off cast shadows, visible for reflection etc. i just cannot not make the setup work like in CPU. See Picture 4
Vray Version is the latest: 4.30.02
I hope i explained my problem in an understandable way, please see the attached picture for more information.
I really really would like to get this solved, because RTX really plays out the power so it's rendering like 4 times quicker.
Would be so great to be able to utilize the GPU.
Otherwise it would be another animation i'm stucked to CPU because of little little things
Fingers crossing there's a solution and thanks in advance!
Greetings Olika
i encountered some strange behavior i can't figure out whether it's intended engine behavior, my stupidness or maybe a buggy thing.
I have a fairly simple dark Studio Setup (sorry for the small render crops but everything is under NDA).
Because of the shape of the product i need to place a light underneath the floor to get the reflection on the product as i want it.
There is some action going on on the floor i cant make the floor refractive as you would do it in real life.
- Therefore i excluded the Floor from the Vray light underneath which works perfectly on CPU (you have to turn on Reflective Caustics in GI to make it work). See Picture 1
- But when i change to GPU with the same settings the bottom light is not showing up anymore in the reflections of the object. See Picture 2
- What irritates me is that you can see the setup behaving properly while calculating the lightcache. But when the renderpass starts its not there? See Picture 3
- No matter what combination i'm trying, ie. turn off cast shadows, visible for reflection etc. i just cannot not make the setup work like in CPU. See Picture 4
Vray Version is the latest: 4.30.02
I hope i explained my problem in an understandable way, please see the attached picture for more information.
I really really would like to get this solved, because RTX really plays out the power so it's rendering like 4 times quicker.
Would be so great to be able to utilize the GPU.
Otherwise it would be another animation i'm stucked to CPU because of little little things

Fingers crossing there's a solution and thanks in advance!
Greetings Olika
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