POV-Ray : Newsgroups : povray.pov4.discussion.general : Real-micro-poly-displacement based on patterns and pictures : Re: Real-micro-poly-displacement based on patterns and pictures Server Time
23 Feb 2024 14:22:31 EST (-0500)
  Re: Real-micro-poly-displacement based on patterns and pictures  
From: nemesis
Date: 25 Nov 2009 01:06:28
Message: <4b0cc964@news.povray.org>
Chambers wrote:
> Actually, everything in Renderman is a polygon.  Even if you use curve 
> based objects like spheres, they first get tessellated as polygons 
> before being rendered.
> 
> I believe Pixar uses a dynamic tessellation which yields polygons 
> roughly half the size of individual pixels, so the end quality is still 
> quite good, but that doesn't change the fact that the way POV-Ray works 
> is very, very different.

Yes, REYES is basically scanline.  It wasn't until quite a few years ago 
  that Renderman integrated raytracing into its pipeline.


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