Samuel Benge wrote:
> 
> Thanks Christoph, and to the MegaPOV Team! The CodeWarrior version seems 
> to work fine on my machine (P4 1.6mhz, 512mb ram, Windows 98). It runs 
> slightly slower than the (unpatched) official POV-Ray release, but much 
> faster than the recommended download.

That sounds promising, do you have some actual numbers for comparison 
(preferably the benchmark of course).

> I'm glad to see mlPOV made it in.... all those other features are cool 
> as well (an HDR render I did actually got my older brother to gasp when 
> he saw it... rare). All those features are sure to keep me busy.
> 
>  > We encourage those who have some experience with POV-Ray to test the
>  > beta version - this will help us to find possible flaws which might be
>  > there since it was quite some time since the last release.  Please
>  > report problems to povray.unofficial.patches.
> 
> There does seem to be a bug in the camera_view pigment. When the 
> camera_view pigment is placed inside a pigment_pattern block, the (now 
> grey) shades of color stop at white and start at black again. In other 
> words, if you had a white sphere with light shining in it, the highlight 
>  (diffuse finish) would appear to have black rings turning from 
> black-to-white instead of one smooth gradation. I'm sure this has to do 
> with the fact that the patch can't handle high color values yet. No 
> amount of color_mapping helped in this situation. I can make a file 
> demonstrating this, if needed.

Sounds like a color clipping problem to me.  It seems pigment_pattern 
does not clip the values (this is the case in official POV-Ray as well). 
  Try:

pigment {
   pigment_pattern {
     bozo
     color_map {
       [0.5 color rgb 0.0 ]
       [0.7 color rgb 10.0 ]
     }
   }
   color_map {
     [0.0 color rgb 0.0 ]
     [1.0 color rgb 1.0 ]
   }
}

As a workaround you could do the clipping yourself by using a function 
pigment with a pigment function. :-)

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 06 Jul. 2004 _____./\/^>_*_<^\/\.______

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