Tim

I think I'd look into intersections, such as 

intersection{
             cylinder{
                      <0,1,0>,
                      <0,-1,0> 0.75
                     }
             sphere{
                    <0,0,0>,1
                    scale <1.25,1.25,1>
                   }
             pigment{
                     gradient y
                     color_map{
                               [0.0 color Orange] 
                               [0.25 color White]
                               [0.5 color Green]
                               [0.75 color White]
                               [1.0 color Orange] 
                              }scale 0.25
                    }  
             rotate z*90       
            }           
    
you can do some really interesting things with intersections, and
don't forget that you can scale an object aswell, as in my
example above, I've intersected a sphere and a cylinder, but
scaled the sphere uneavenly, which gives the finished object this
unusual shape.  I am of the mind that anything can be done with
CSG though a few extra key words to enhance the scaling and
bending of objects would help.    

TigerHawk wrote:
> 
> About a week ago I started creating a toilet model in pov-ray (yes,
> I know it's been done, but I wanted my own toilet :) via a text editor.
> I did not want to use a modeller because I'd be able to move things
> around better (I suppose I could make peices of it in a modeller, but
> the scaling may be off, etc. Besides, I like CSG). The problem I have
> encountered is the smoothing of the edges. Now, I know I can use a
> superellipsoid for the tank and tank lid, but what about the seat and
> the top of the base? Using cylinders and such makes the edges very sharp
> (OUCH!) and I am wondering how might one go about smoothing them
> out? Superellipsoinds can't do rounded cylinder shapes (or can they?) so
> I am kind of stuck
> 
> I thought about using CSG of the difference of a square and the side of
> a cylinder, and using that and differencing that with another object,
> but that would only make a mold for a straight-edge.
> 
> Any ideas?
> 
> Tim Soderstrom
> TigerHawk
> Tig### [at] SticNet

-- 
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Steve        email: mailto:sjl### [at] ndirectcouk   

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