View Full Version : Mental ray eating ram for breakfast
07-21-2005, 09:22 PM
I'm trying to render a still from a composition.
I'm building up a fire over a picture to make a short effect, I tried to render with mental ray from a friend advice, but as soon as I hit render, mem goes up to 200mb-300mb(all fine) then suddenly 1000mb 1459mb.....here it stucks for a minute and then Max Crash....
there are 5million poly in the still.....but I never so it blocking....
ever happened to you?
thank you for your help and time.
AMD barton 3200+
2048MB Corsair XMS
07-21-2005, 10:00 PM
I've never had it crash on me like that when using MR...I only have 1.5 gig of ram. It is normal for MR to use a ton of ram when calculating photon emmision, then after that I think it switches over to your pcu. so it is normal for it to use that much.
07-21-2005, 10:51 PM
Bitmap Pager, dont know why max doesn't enable this by default.
07-22-2005, 03:12 AM
Set your systems virtual memory (paging file size) to twice that of your RAM for both minimum and maximum.
To change it go Start>Settings>Control Panel>System>Advanced tab>Performance Options >Change
Reboot after you make your change and it will write to your pagefile when your system runs out of RAM.
there should be an option in Render Settings ('m not a max user :)) to limit the maximum ram amount that mray can use.
07-22-2005, 12:49 PM
and.. well... 5 millions vertexes with GI may be well over the top by the way. admit it, you modeled a high res hedgehog with each spike being meshmoothed??
07-22-2005, 01:58 PM
Thanks for the replies.
PureFire: I will give it a try tonight.
deumilcat: it's actually all particels, it's picture of few houses and there is fire behid the first row, I'm using a PF to make realistic smoke....quite heavy but looks good (still have to improve the texture)
I checked the render time for the video, it will take 2 days..... :(, do you have a render farm to rent? :D
07-22-2005, 01:58 PM
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