i was wondering if there are any developments that would allow the
following procedural texture (no image maps): the "negative" shadow left
on the wall, of a human, after a nuclear blast.  also, a mark on a
surface that is wide at the start and narrows in the direction of
"appearant travel".
  that second idea would allow for more realistic placement of things
like oil stains on an airplane, seagull poop on rocks, or other things
that splatter, or otherwise travel as they leave their mark.  of course
your particle system may allow for the actual stain item to travel
before it leaves the stain, but i'm looking for the stain itself. 
another example would be rust running down from a nail on an outside
wall...

Chris Huff wrote:
> 
> The first actual scene made with my patch.
> It consists of one particle_system object with four particle_emitters.
> The water pool accumulating in the center of the fountain is a result of
> the simulation itself, no faking done. The textures need some work,
> though... :-)
> 
> 3184 particles created
> 96527 particle collisions
> 
> Scene contains 3 frame level objects; 0 infinite.
> 
> Peak memory used:          1521786 bytes
> -----------------------------------------------------------------
> Time For Parse:    0 hours  0 minutes   5.0 seconds (5 seconds)
> Time For Trace:    0 hours  1 minutes  36.0 seconds (96 seconds)
>     Total Time:    0 hours  1 minutes  41.0 seconds (101 seconds)
> 
> Rendered on a Power Mac G3 266 "beige" desktop at minimum CPU priority
> ("lazy").
> 
> --
> Christopher James Huff - Personal e-mail: chr### [at] maccom
> TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
> Personal Web page: http://homepage.mac.com/chrishuff/
> TAG Web page: http://tag.povray.org/
> 
>  [Image]

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