scott <sco### [at] scottcom> wrote:
> That's only to render quickly though, internally all surfaces are stored as 
> mathematical descriptions.  In theory you could write a raytracer to render 
> these surface descriptions directly with no tesselation.  In fact, if you 
> create a shape with rounded edges in a CAD program, you can export it to a 
> common interchange format (STEP) which is plain text.  In that you will see 
> that the solid is completely defined by mathematical curves and surfaces, no 
> tesselation.

  That doesn't change the fact that the CAD software tesselates the surface
before rendering it. Or have you seen one which doesn't?

-- 
                                                          - Warp

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