POV-Ray : Newsgroups : povray.unofficial.patches : Cloth Simulator Problems : Cloth Simulator Problems Server Time
1 Sep 2024 16:17:33 EDT (-0400)
  Cloth Simulator Problems  
From: Andy Cocker
Date: 23 Feb 2001 15:46:46
Message: <3a96cc36@news.povray.org>
Hi,
I'm having a bit of a problem getting Jerome Berger's Cloth Simulator to
work. I'm using Christoph Hormann's Cygwin compile of 0.2.0 (any chance of
you compiling version 0.3.0 Christoph? :-))

Okay, the first problem is that when I attempt to execute the example
(table.cl), if I use the command-line parameters as shown in the docs, I get
this error message:

<snip>...........4096
1.00021e+300 is not finite!

I've also had the following:

-NaN is not finite!

It works if I set steps at 100 or so, but anything above approx 600 and the
cloth goes haywire, with spikes shooting off at all angles, and render time
goes through the roof.

Maybe part of the problem is that I don't really understand how the program
functions.

Am I correct in thinking that a horizontal cloth created at the origin (i.e.
with the default parameters) will 'fall' until it makes contact with the
defined obstacles? In my tests (using a step count of 100) I ended up with a
square of cloth suspended in mid-air.

What exactly does STEPS do?

I would appreciate any *.cl files (with appropriate command line parameters)
that anyone could send me, so that I can try and understand what's going on
here, as I *really* want to get to grips with the prog.

Many thanks,

--
Andy Cocker

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