RT Activeshade locks up max UI

[Morne]

Hi all

I have a GTX 670 with 4GB ram. When I use RT activeshade CUDA (Vray 3.3) and I want to change camera settings or light settings, I have to stop the render before I can see the controls of the lights or cams. Its asif the GPU uses too much resources or something and doesn't leave enough for MAX. Is there a way we can limit this like with adv and the dynamic ram limit?

I get excited everytime a new version is released, but since 2007 when I 1st saw RT, I'm yet to use it succesfully on a single production

[yavor.rubenov]

Hello,

You could lower Rays per pixel and/or the Ray bundle size parameters in the Performance section of the V-Ray RT - this will make the user interface more responsive. More details here:
http://docs.chaosgroup.com/display/V...cingtheGPULoad

Best Regards,
Yavor

[savage309]

By default RT GPU tries its best to fully utilize the hardware. If you have multi GPU setup you can leave one GPU for viewport/monitor and render with the rest. If you don't you can try http://docs.chaosgroup.com/plugins/s.../view/10390214 section "Balancing the GPU load". You can go with rays per pixel / ray bundle size as low as 1 / 16.

Edit: Yavor got it first

[Morne]

I changed the defaults from 192/8 to 128/4 and then to 64/2 but still not helping

[Morne]

Even on 4/1 it's still the same (but the rendering obviously much slower)

[savage309]

It is weird that it doesn't have any Max performance improvement.
The best we can do in that case is to check the scene and see why is that. I guess if you can mail it to support@chaosgroup.com with link to this topic it could help us for further improvements. Keep in mind that because of the holidays we might be a bit slower than usual with the support requests.

[Morne]

I started a new scene and imported all except 1 object. Working now. The 1 object was from a 3rd party