Hi there
first congrats for this update… 
i’m experience a lagg when in interactive render.. super simple scene with some scatter objects and start IPR (even on VFB or view port) the movement of the viewport takes time to update on IPR. I’ve reported this on previeous version and it was corrected as expected.
can you confirm this ?
thanks
best regards
nuno
by the way I’m using C4D 2025.1.2 and Vray 7.00
best
nuno
I’ve just confirm that this only happen with chaos scatter if we use the native c4d cloner works perfectly
I can share a file showing that
best
nuno
Hi @nunomatos Thank you for taking the time to share!
Could you please let me know your machine specifications?
Also, sharing a file would be useful. Please, make sure to use File > Save project with Assets.
Hi @viktor_angelov thanks for the prompt answer
here it goes the file
https://www.dropbox.com/t/Im4qaKiAugYBSbwB
my ps spec:
processor AMD Ryzen 3990
RAM 128gb
Graphic card - Nvidia 3090
windows 11 Pro version 23H2
best
nuno
Hi @nunomatos we have encountered similar issue before that caused by the AMD. Could you please install the latest Stable build and test if the issue still persists?
You can find it here: Chaos
Hi! I have problems with Scatter too
AMD Ryzen 9 3900X 12-Core Processor
Nvidia 3070
Now I will intall the latest Stable build
Hi @Juan_Ferreira ,
Can you make sure that you scatter object has no additional transformations i.e. it’s translation/rotation/scale are 0 and it’s parents objects don’t have any non-zero transformations either. For one reason or another we had to change this in V-Ray 7.
I’m sorry for not answering sooner but this morning while reviewing the scene I saw that by mistake there was a null object inside the grass scatter and that was what caused the error I think.
Sorry again for the delay in posting it.
IT have just installed v7.20.00 with C4D2025.3 and I’m having the same lag. No scattering or any other shenanigans, just straight up geo with standard shaders. I try and rotate the vehicle and it’s about a 1-2 second lockup before it rotates and updates the preview. I’ve been using v6 (last update) with C4D 2024.3 and no lag whatsoever. Just glad I kept it installed.
Was there any update on this lag issue? My work wants us to get onto v7, but this IPR lag is a major pain.
Hi @KernitTheFont What are the Cinema and V-Ray versions that reproduce the issue?
Please, test with the latest Stable build and let me know if it’s the same: LINK
Is it reproducible with any scene or a specific one? Simple scene as well?
How does it reproduce? Please, share a video recording so we can observe it.
All of this you can do here or feel free to open a ticket via our system if you want to.
Oh, I should have also stated that it’s a Mac Studio M2 Ultra, running Tahoe 26.3. Apparently, our Windows boys don’t have this issue. I’ll have to get IT to install the latest stable build temporarily, which may take a while. I’ll DM you the videos as it’s an embargoed vehicle and test with another scene. Cheers Viktor!