light cache - memory problems

[Dave Oliver]

id guess this has been covered somewhere, but there are so many light cache search results its really hard to find.

 

3ds max 64x 4GB ram.

 

LC - fly through (30 equally spaced frames along path - exterior/interior)

3000 subdivs

.04 sample size (screen)

 

scene i am animating pictured below

 

it estimates about 1hr 30 min, then about 1/5 into the render it hangs and starts counting back up indefinitely.

 

i know this must be a memory issue, but i have no problems with higher settings in other scenes.

 

this might be some weird logic, but 1hr 30min seems pretty fast for lighting a whole scene. cant it just 'take its time' rather than trying to use so much memory all at once? i wouldnt mind if it took 6 hours, im gone anyway.

 

is there any setting i can use to get a high quality secondary bounce for this kind of scene?

 

[Nic H]

maybe try upping the dynamic memory limit to something alot higher than the default 400 mb

 

i use 2500 mb when I have problems with light cache memory stalls, thats with 8gb ram.

[Dave Oliver]

forgot to switch the camera type to spherical

Edited October 28, 2008 by dave5264
oops