[Radiance-general] Modeling... a bowl?

[Greg Ward]

Hi John,

Your suggestion does carry the advantage of producing correct  
smoothed normals on both sides of the surface, whereas the normal  
perturbations out of genrev are only correct for the "front" side of  
the object (the inside in this case).

Cheers,
-Greg

> From: John Mardaljevic <jm at dmu.ac.uk>
> Date: June 4, 2008 8:51:33 AM PDT
>
> Greg,
>> Is there some reason to prefer gensurf to genrev in this instance?
>
> Yeah, I was slavishly following your gensurf manpage example:
> To generate a tesselated sphere:
> gensurf crystal ball 'sin(PI*s)*cos(2*PI*t)' 'cos(PI*s)' 'sin(PI*s) 
> *sin(2*PI*t)' 7 10
> That and I'm much less frugal nowadays when it comes to counting  
> polygons.
> -John