POV-Ray : Newsgroups : povray.pov4.discussion.general : On triangle and smooth_triangle shapes. : Re: On triangle and smooth_triangle shapes. Server Time
14 Apr 2024 22:25:45 EDT (-0400)
  Re: On triangle and smooth_triangle shapes.  
From: Bald Eagle
Date: 14 Nov 2023 13:35:00
Message: <web.6553bd793d3331871f9dae3025979125@news.povray.org>
William F Pokorny <ano### [at] anonymousorg> wrote:

> I need to better understand the gradient calculation method(a)

> (a) There is a similar method used to calculate isosurface normals.

No ...  if you're talking about the

* FUNCTION
*
*   IsoSurface_Normal

in isosurface.cpp, in source/core/shapes,

that looks like just regular old forward-difference to calculate a function
gradient.

> > https://news.povray.org/5c45e632%241%40news.povray.org
>
> I don't remember reading that particular post - thanks.

Certainly.  I stumbled across it while trying to find one of my other posts.

- BW


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