Hi Ho,

thought I posted this last night from home, but I can't see it on the
server this morning (at work)...

I'm rendering a simple animation: a single object, a lightsource and a
skysphere to become an QTVR object movie... the object in question is a
CSG of planes (a variant on the 'tesseract' on my home page
www.tesseract.com.au - is only 56k so it should load reasonably
quickly - yes, I read the CSG of Planes thread too), but the symptoms
remain when a hexagon patterned (pigments only) sphere is used instead.

A typical frame renders in under 30 seconds. If I leave POV rendering
frames, by the time it's done 50 that's become a minute, by 300 frames
it's more like 4 minutes. Quitting, re-launching and re-rendering the
*same* frame shows that it's not a difference between frames causing the
slowdown (time drops to about 30seconds again).

In the original render decay thread Ken someone (not Tyler) commented
that as far as he knew it was a Windows only problem - not so: 3.1g on a
PowerMac (sys 8.6 qt 4.0, 30MB RAM allocated to POV-Ray - using nowhere
near this much, other apps open but idle (i.e. should be constant load))

Anyone got a solution other than rendering in small batches with quits
between? Even a suggestion that may reduce the effect? (caching more
image rows??)

By the way:
Parsing time also increases (the scene file has some declares and an
include with declares, but everything in it remains constant between
frames other than the rotation of the object - parsing time should be
constantly under 0.1 seconds).

Also noticed that 0+0.1=2, 2+0.1=3, 3+0.1=4 in parsing times for
consecutive frames.

(if not then time to write an applescript....)

Have Fun
Martin
--
<Spa### [at] tesseractcomau> is a valid address
If you prefer mnemonic addresses you can use:
<Martin 'at' tesseract.com.au> or <Martin.Crisp 'at' Tourism.tas.gov.au>

My opinions should not be taken as indicative of Tourism Tasmania's
opinions

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