Low cpu usage vray 64 max 64 vista 64

[Carrotious]

I'm running a i7 940 with 12gig ram and looking at the performance in the windows task manager, i'm getting 25-40% cpu usage...

 

Anyone seen this. makes no sense to me.

 

On my laptop cpu usage is up at 100 as expected.

 

its very strange...

 

thanks yall

[Carrotious]

it's even stranger really...

when rendering the scene with low setting at 640x480 all 8 cores are at a 100% for the light cache calc and the irradiance and the render.

render te same scene with high setttings and at 1280x960 and the cpu usage percentages jump around from 12% to 60%. surely when redering all cores should be maxed out at 100%, especially at highr render settings?!?

 

i'm most confused...

[Carrotious]

well i figured it out. it was the displacement in my carpet in an evermotion archshaders shader...

 

unchecked and all cores are back to 100%

 

checked and the problem reapears...

 

I was also getting a UNHANDLED EXCEPTION: Irradiance map thread Last marker crash error.

 

I'm going to have to look into displacement more thouroughly. Until now i didn't really use it as my pc was too slow, but now i should be ok to use it...

 

anyway that was weird...

[Dave Oliver]

from what i understand, displacement uses dynamic memory. if you go into the settings tab of your vray, and up the dynamic memory limit to 4 or 6 gigs (which should be fine considering you have 12) you should be able to rendering that displacement no problem.