I’m trying to understand how many Vraylight domes can be used at the same time on a scene.
I have an array of 4 cars: every single car is lit by a different, single dome light with customized HDR (to have the correct reflections), light that excludes the other cars.
In the scene, however, only two dome lights at a time seem to work, the others have no effect: is there a documented limit to the number of dome lights that can work on the scene?
This is a known issue, which has already been reported to our developers and is on their to-do lists. As a workaround, you may use the standalone application to render out your scene correctly (.vrscene exporter>export and render).
Another thing you can do is to control the reflections on a per material basis by plugging your HDRs in the Environment slot of your VRayMtls. This would eliminate the need for multiple dome lights, however, note that you should disable the ‘affect reflections’ in the light itself (so as not to override the environment reflections).