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tizxx
PostPosted: Mon Feb 06, 2012 12:26 pm 

Joined: Thu May 04, 2006 9:53 pm
Posts: 32
Hi Bubbaloo,

this experiment is fantastic !
can you tell me how long time take to render at Sampling Level 33 ?
How many computers or CPU/core are you used ?

Many thanks.

Have you a nice day.

Tiziano Silvestri
Maxwell Render dot IT TEAM
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Half Life
PostPosted: Mon Feb 06, 2012 12:55 pm 
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I'd be interested to know as well -- I recently did a small render(600 x 800) to SL 30 and it took 138 hours.

Last time I tried to go higher than SL 33 I was in excess of 300 hours and gave up.

Best,
Jason.

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Bubbaloo
PostPosted: Mon Feb 06, 2012 3:09 pm 
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If I remember correctly, it was a single computer, 8 cores. I left it to render when I took a vacation (probably 9 days). When I came back, no one had touched it, and it was at about S.L. 33. Absurdly impractical, but I just wanted to prove that Maxwell does do pool caustics given enough time/cpu power.

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tizxx
PostPosted: Mon Feb 06, 2012 4:11 pm 

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Many thanks for reply.
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eric nixon
PostPosted: Tue Feb 07, 2012 4:47 am 
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One solution is to render it without the floor, the problem is only when you see the shadow area underneath THROUGH the glass.

The other solution is to use broad emitters / less sharp hdri.

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rusteberg
PostPosted: Tue Feb 07, 2012 5:31 am 

Joined: Sun Jan 07, 2007 7:23 pm
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Bubbaloo wrote:
If I remember correctly, it was a single computer, 8 cores. I left it to render when I took a vacation (probably 9 days). When I came back, no one had touched it, and it was at about S.L. 33. Absurdly impractical, but I just wanted to prove that Maxwell does do pool caustics given enough time/cpu power.


why you weave yo poota running such long time Bywain?
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Bubbaloo
PostPosted: Tue Feb 07, 2012 6:30 am 
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rusteberg wrote:
why you weave yo poota running such long time Bywain?


I am constantly endeavoring to increase my carbon footprint. It'll be my legacy.

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Bubbaloo
PostPosted: Tue Feb 07, 2012 6:35 am 
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eric nixon wrote:
One solution is to render it without the floor, the problem is only when you see the shadow area underneath THROUGH the glass.

The other solution is to use broad emitters / less sharp hdri.


Another thing you can do is pre-render a caustic map desaturated for use as an opacity map for an emitter material applied to the pool bottom. (Even animate it).

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tom
PostPosted: Tue Feb 07, 2012 11:38 am 
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Bubbaloo wrote:
itsallgoode9 wrote:
Does Maxwell just completely stop calculating after a certain amount of refractions?

I'm not sure. That's a question for Tom or Juan.

Maxwell does not have a certain ray bounce limit. As a proof of concept, you could place thousands of glass panels in a row and see behind them with enough attenuation.

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