Some problems that I found

[evgeny_romanov]

When I try to hide particle system, render stops working. So I have to put object with particle system into hidden collection, that resolve the issue, but I can hide it properly.
The second problem is when I just click on object, render is couting samples again, but nothing is changed.
Third is no material convertor, I think it's pretty easy that simple convertor, as they did in octane for blender.
Fourth is V-Ray doesn't see active UV-map, as I understand it always render the first map.

[daniel.kapsazov]

Hello evgeny_romanov, Thank you for reaching out! Let me address each of the topics you’ve mentioned:

1. Hiding a Particle System:
   In my attempts to reproduce the reported behavior when hiding a particle system, I was unable to observe the issue. Could you provide a screenshot or a more detailed guide to help us reproduce it on our end?
   blender_2025-01-07_17-36-43.gif
2. Performance in Heavy Scenes:
   I was briefly able to reproduce this behavior in a very heavy scene, but there’s a possibility something else caused it on my end. It would be extremely helpful if you could provide a simple scene that highlights the issue or a screen recording demonstrating it.
3. Cycles to V-Ray Material Converter:
   A Cycles-to-V-Ray material converter is definitely a great feature to have and has been a frequent request since the beta release. Currently, our development team is focused on delivering a stable and user-friendly product, with much effort dedicated to under-the-hood changes. That said, features like this are important for the future. I strongly encourage you to submit this suggestion to our Ideas Portal here: Ideas Portal.
4. Active UV Map in V-Ray UVW Mapping Node:
   You can choose the active UV map within the V-Ray UVW Mapping Node when it’s connected to a V-Ray Bitmap, for instance. I’ll provide an example below. If you’re aiming for a different result, please let me know so I can assist you further.blender_2025-01-07_18-29-00.gif