I have often had problems with transparent object behind other
transparent objects having visible components.

Consider : 

union {
  sphere { 0, 1 }
  sphere { 1, 1 }
  sphere { 2, 1 }
  pigment { color rgbt 1 }
}
sky_sphere { pigment { color rgb 1 } }
light_source { 5 color rgb 1 }
camera { location 5 look_at 0 }

-----------------------------
However, there is a fix to Lars's problem.

For the transparancy, use a texture map in addition to or
in place of the pigment pattern.  The texture_map allows
the finish to be varied across the surface.

Dan


Lars Wolter wrote:

> this creates 4 Spheres, and when rendered two of them ( those with
> specular ) are partialy visible, but i need a complete transparency, without
> reflection, even when i use specular.
> I need this when using partial transparent textures, where the non
> transparent part should have specular.

-- 
http://www.flash.net/~djconnel/

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