GI fills memory?

wannabeArtist · Post by **wannabeArtist** » 04 Jun 2010, 12:14

Hi all,

I'm having some trouble with GI. If I try to render several frames with GI, or just regions to test - it seems to leave the photon maps in memory and fill it up until XSI crashes. Is there a way to prevent this? I already checked all the boxes in preferences for "empty rendering cache", but it seems to have no effect.

I'm using 7.01

Thanks!

Hirazi Blue · Post by **Hirazi Blue** » 04 Jun 2010, 13:09

What kind of graphics card are you using?
Could it be this or a similar ATI related memory leak?

wannabeArtist · Post by **wannabeArtist** » 04 Jun 2010, 13:14

Hi,

This machine has NVIDIA GeForce 9400 GT, so it's not an ATI card.

But can the graphics card be related here - I mean it's the main memory of the machine that gets filled up - all 8 GB of it!

Hirazi Blue · Post by **Hirazi Blue** » 04 Jun 2010, 13:21

Okay, that was simply the first thing that came into my mind concerning any kind of memory leak.
I will do a more thorough search and hopefully get back to you...

edit: you're sure it's GI related. Rendering without GI doesn't cause the crash?

wannabeArtist · Post by **wannabeArtist** » 04 Jun 2010, 13:36

Thanks,

I will also post here, if I figure it out on my own.

I'm pretty sure it's related to GI, I'm working with the "fire project" and there's quite a lot of photons involved. Few frames come out ok, but the photon maps accumulate in memory and after a while it crashes.

I am not sure, however, if I have messed something up in the render configuration to cause this. It could be a user error

Hirazi Blue · Post by **Hirazi Blue** » 04 Jun 2010, 13:41

Does your crashes shutdown XSI immediately or do you get some kind of error message from XSI before it goes?

wannabeArtist · Post by **wannabeArtist** » 04 Jun 2010, 13:49

Well, it just freezes and gives me the hourglass (or the weird torus thing Windows uses now). After a while Windows wants to kill it, because XSI process is using something like 99% of memory.

I haven't tested rendering actual passes today, only regions, I will see if I get the same behavior later today, when I try to render a sequence.

Hirazi Blue · Post by **Hirazi Blue** » 06 Jun 2010, 09:34

What happens, if you try to render the scene using XSIBatch?

wannabeArtist · Post by **wannabeArtist** » 07 Jun 2010, 06:22

Thanks for the tip,

Must try that also. I actually changed to IRP in this particular (fire) project - it turned out to be much faster than with the photons and no memory problems either.

GI fills memory?

GI fills memory?

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