Am 29.07.2010 03:34, schrieb Anthony D. Baye:
> I've been attempting to model a 3d attractor in povray using the following code.
...
> I'm using a default pigment atm to lower the memory requirements, but it still
> hangs after calculating all the positions.  I know it's looping through all the
> calculations because of the debug statement, so I can't figure out why it hangs.
>   my only thought is that it's trying to create bounding boxes for thousands of
> tiny objects and having a conniption.
> At the current setting of 1000 it hangs for several hours and does nothing. can
> anyone advise me on this?

Doesn't sound anywhere close to convincing: A lousy 1000 spheres is 
nothing POV-Ray should have any trouble to bounding, and memory 
consumption is no higher than ~230 MByte (30 MByte more than what seems 
to be basic overhead), and both parsing and rendering times are sane on 
my machine (okay, it's an Intel i7 Quad with 6 GB RAM, but still...)

As it seems, the problem is rather that your attractor isn't very 
attractive: It marches off to infinity after ~10 iterations, and /that/ 
is apparently giving POV-Ray the bends ("try bounding /this/!").

BTW, for saving some memory (and possibly also speed up rendering) you 
may want to try using a blob instead of a union.

Post a reply to this message