Le 22/07/2011 10:27, 43oasis nous fit lire :
> Hello
> 
> I use this code to produce the body of a rocket :
> 
> #declare forme = sor { 16,
>                        <0.0005,-6>,
>                        <1.0,-4>,
>                        <1.01,-2>,
>                        <1.15,0>,
>                        <1.35,2>,
>                        <1.55,4>,
>                        <1.69,6>,
>                        <1.8,8>,
>                        <1.89,10>,
>                        <1.925,12>,
>                        <1.79,14>,
>                        <1.5,16>,
>                        <0.99,18>,
>                        <0.175,20>,
>                        <0.07,20.1>
>                        <0.0005,23>
>                        hollow
>                      }
> later restricted to the sections of interest by various "difference" with
> co-axial cylinders in CSG operations, but this makes no ... difference.
> 
> When textured with :
> 
> #declare txtr = texture { pigment { color Red }
>                          finish { ambient 0.05 diffuse 0.8 }
>                         }
> 
> I get strange results, with the object beeing usually OK, but, for some
> orientations and distances to the observer, full of "semi-random" holes
> (perpendicular to the axis of the SOR), shape errors, and granite-like black
> imperfections.
> 
> Which parameter is wrong ?
> I set :
> global_settings { max_trace_level 256 assumed_gamma 1.0 }

Sor documentation:
>
http://wiki.povray.org/content/Documentation:Reference_Section_4.1#Surface_of_Revolution

have you tried to add "sturm" before "hollow" ?

what and where is your camera ? your light sources ?

Post a reply to this message