POV-Ray : Newsgroups : povray.pov4.discussion.general : rounded intersections? : Re: rounded intersections? Server Time
25 Feb 2024 06:20:48 EST (-0500)
  Re: rounded intersections?  
From: Warp
Date: 2 Oct 2008 11:54:57
Message: <48e4eed1@news.povray.org>
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

Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.