Great, it works fine. Thanks a lot!

I would never have found that solution myself.

siegmar

Nathan Kopp wrote:
> 
> You made no mistake.  This is what appears to be a previously undiscovered bug
> in POV-Ray.  I found the problem in POV's code: POV-Ray depends on a few global
> texture and weight lists for multi-textured objects like blobs.  Unfortunately,
> when it computes textures during shadow testing, it forgets to push the values
> onto a stack and subsequently mangles the list.
> 
> Therefore, your temporary fix is to add the "no_shadow" keyword to the "merge"
> object that the blob is in.  This will cause POV to skip the shadow test and
> protect your blob's texture and weight lists.
> 
>    merge {
>       sphere {
>          <-0.5, 0., 0.>
>          C_VDW_Radius
>       }
>       sphere {
>          <0.5, 0., 0.>
>          C_VDW_Radius
>       }
>       texture { _T_VDW }
>       hollow
>       no_shadow // this will fix your problem
>    }
> 
> I'll tell the POV team about the bug and also how to fix it.
> 
> -Nathan Kopp
>

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