POV-Ray: Newsgroups: povray.general: spacewarps non-linear tracing: Re: spacewarps non-linear tracing

POV-Ray : Newsgroups : povray.general : spacewarps non-linear tracing : Re: spacewarps non-linear tracing		Server Time 2 Aug 2024 04:19:49 EDT (-0400)

From: Christoph Hormann
Date: 8 Jan 2005 06:55:02
Message: <crohhl$5an$1@chho.imagico.de>

Warp wrote:
> 
>   Also, I would like to know whether the rays used to render those images
> were really curved or if they were just straight rays transformed on
> a non-linear basis (similar to what eg. the normal{} block in a camera
> statement would do).

I suppose it's either tracing piecewise linear rays or always using a 
numerical root solver (like POV-Ray does for isosurfaces).  In any case 
it would be quite slow.

Christoph

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