CPU usage 100%

[Daithi800]

Hi guys Im using Vray now for a while with some nice results.
Im running it on a sony vaio
Intel Core2 Duo processor 2.10 GHz,with 4Gb ram.

But Im having a problem with an interior scene at the moment.
Its size is 32mb and while rendering the screen goes black.

The microsoft toolbar at the bottom of screen is fully functional and I can access windows task manager.

Task manager says its is using 95-100% CPU.
It says the process is still running but with no visual feedback I cant know for certain.


Is this common with large files?
Any help would be greatly appreciated.
Thanks guys

[Micha_cg]

Re: CPU usage 100%

From my experience a file size of 350MB is large.

Hmm, do you mean, the whole screen is black, or only Rhino viewports or the framebuffer? Could be a heat problem. Is it after a long while rendering only?

[Daithi800]

Re: CPU usage 100%

the whole screen above the microsoft toolbar-ie the start/windows icon.
After it happens and I close rhino the screen above still remains black.

Im not sure if its a problem with my laptop its only new?
Im using windows vista could that be a factor?
It may well be a heat problem as it was running for over 8 hours.
Clearly if 350mb is large than size really shouldn't be an issue with this file.
Have you encounterd problems like this before?
Thanks :'(

[dalomar_cg]

Re: CPU usage 100%

It depends on what that 32 mb file is...I can make a 32 mb file that would be absolutely a pain to mesh, may cause Rhino to crash/lockout, or a number of things. What exactly are you doing when the screen goes black? Also, if you have Show Calc Phase disabled, you won't get any visual feedback on the prepasses.

[Daithi800]

Re: CPU usage 100%

The prepasses go fine,I get visual feedback from them,the screen goes black about an hour into the render,sometimes it will comeback and I can see whats happening only to go again very shortly after.
When I have a render running I dont touch the computer and turn off all other programs.
The scene is very complicated,
Just a bar/countertop and a few emmitter materials with one large light for illumintaion.
Cheers for your replies

[dalomar_cg]

Re: CPU usage 100%

Hmmm....what kind of screensaver and what kind of video card are you running??? that almost seams like you're trying to run a "heavy" screensaver while having you're cpu maxed out and it just can't get it going.

BTW, when the render finishes, is the screen back to normal? If you set up the file to autosave after the rendering is the image still saved?

[Daithi800]

Re: CPU usage 100%

Hey guys the screen saver was the problem thanks for your I love when the solution is so simple really makes me feel clever or not hahaha.
Anyways thanks for your time I really appreciate it
Cheers

[dalomar_cg]

Re: CPU usage 100%

Yea, I thought it was that...glad it was a simple solution