POV-Ray : Newsgroups : povray.beta-test : Isosurface CSG shadow problem : Re: Isosurface CSG shadow problem Server Time
4 Nov 2024 21:23:31 EST (-0500)
  Re: Isosurface CSG shadow problem  
From: Slime
Date: 23 Sep 2001 20:44:38
Message: <3bae81f6$1@news.povray.org>
This bug, if it is in fact a bug, remains in beta 4.

BTW: Windows, 256 RAM, 900 mhz (not sure which processor off the top of my
head)... um, that should probably cover it...

- Slime
[ http://www.teja.nu/slime/ ]
[ http://www.teja.nu/slime/images/ ]

"Slime" <noo### [at] hotmailcom> wrote in message
news:3bae1df9$1@news.povray.org...
> The isosurface in this scene has a plane cut out from it. The light source
> is at the same location as the camera, so no shadows should be visible.
> However, the isosurface seems to be showing shadows from the part of it
that
> has been off by the plane.
>
> camera {
>  location <0,0,-8>
>  look_at .00001*y
> }
>
> light_source {
>  <0,0,-8>
>  rgb 1
> }
>
> #declare leopfunc = function {
>  pigment {
>   leopard
>   scale 1/5
>   warp {
>    turbulence .3
>    octaves 1
>    lambda 2
>    omega .8
>   }
>  }
> }
>
> intersection {
>  isosurface {
>   function {(abs(sqrt(x^2+y^2+z^2)-3)-.1) + leopfunc(x,y,z).red*.5}
>   contained_by {
>    sphere {0,5}
>   }
>   pigment {rgb 1}
>  }
>
>  plane {<1,1,-.5>,0} // reversing normal and using "difference" doesn't
work
> either
>  pigment {rgb 1}
> }
>
> --
> - Slime
> [ http://www.teja.nu/slime/ ]
> [ http://www.teja.nu/slime/images/ ]
>
>


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