Editor view is jerky in Cinema 4D

[alex_obrist]

Hello everyone,

I know it's not directly Vray but maybe you can still help me. I have a large Scene with multiple houses from ARCHICAD
Imported and I can hardly move the Scene in Cinema 4D.

As soon as I move the mouse I have to wait a long time before it moves again. When i load the scene in rhino 7 it moves like butter.
Is there a better setting in the editor? Even if I make many objects invisible, it doesn't get any better.
ok a little..

I have 4 graphics cards, can Cinema 4D be controlled in the editor using multiple graphics cards? if so where do i put it?


many thanks for your help,


Michi

[sirio76]

You can not use more than one GPU for the viewport, that being said I'm 99% sure that the GPU is not the issue. Most likely the problem comes from your scene setup and since the viewport is single threaded the bottleneck is in your CPU.
My advice is to learn how to optimize your scene using render/multi instances, connecting objects when possible, avoid procedural geometry and generators when possible etc. On the Vray side there's very little you can do, try to not use large resolution for the texture in the material preview and use low resolution for your proxy/Cosmos assets.
For example this is recorded on a small laptop and without a discrete GPU:
https://www.youtube.com/watch?v=_ZiqxUZDlCI&t=2s
As you can see there are no issues in moving many polygons in C4D.
If your scene is already optimized and your problems persist then you may have some other issues, maybe also driver issues.

[tomschmid]

Cinema has a command to optimize archicad imports. Use the cinema 4d search and type archicad. It will create a single object for each material. So all glasses are then 1 object. Cinema4d editor dont like to many objects. Polygons are not the problem but objects

[alex_obrist]

Thank you very much for the help