Fact is there are actually no coincident surfaces anyway in Daniels
script. The individual boxes are reduced to nine tenths their original
size (which if left unscaled would have been a potential problem,
maybe?). Being that much smaller however might be leading to some
trouble though, leaving gaps between each cube.


Dave Kreskowiak wrote:
> 
> I ran into a problem probably similar to yours.  I was trying to render
> billowing smoke from something like a gasoline or oil fire.  There spheres I
> was using for containers intersected (overlapped) each other without any
> coincident surfaces.  The black areas I got were intermittent, but were
> always confined to the INTERSECTION of the spheres, not coincident surfaces.
> Moving the spheres around slightly got around the problem but it appears to
> be a bug in POV.
> 
> In my experience, coincident surfaces tend to render a jittered imaged of
> both textures, not a black spot.  How about this...  try it out 2 images
> using just 2 boxes, side by side, and the texture that your using.  In one
> image put one box about half way into the other and render it and in the
> other, make the boxes just touch each other (coincident surfaces) and render
> it.  Just to see what happens.
> 
> I'd try it and show you what I mean right now but I have a 6 day render
> running right now with 4 days to go...
> 

> news:379a139b@news.povray.org...
> >
> > Hi all!
> >
> > I wanted to create a rgb-cube by putting together 10^3 smaller cubes
> > filled with an emission media. But there are some strange black
> > squares between the smaller cubes! Changing density, transmit and/or
> > filter values didn't help.
> >
> > Does anyone know where the problem is??
> >
> > Thanx in advance,
> > Daniel
> >
> >
> >

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