POV-Ray : Newsgroups : povray.animations : Bullet physics engine test : Re: Bullet physics engine test Server Time
26 Apr 2026 10:51:11 EDT (-0400)
  Re: Bullet physics engine test  
From: jr
Date: 23 Apr 2026 17:45:00
Message: <web.69ea91c288b2671d48bf72fa6cde94f1@news.povray.org>
hi,

"Bald Eagle" <cre### [at] netscapenet> wrote:
> "jr" <cre### [at] gmailcom> wrote:
> > ... guessing BE will rub
> > his hands in glee.. :-))
> I'm not sad about it.

"anticipation" I had in mind, sorry.


> It's great that there's a whole include file that reliably implements
> quaternions.
> It's not copyrighted.
> It's all in SDL, so it can be experimented with by anyone, and any code written
> in c++ to provide source-level capability can be checked against the extant SDL.
>
> I'm nominating this as a file to be put on the wiki as a special resource.
> If TOK or someone with knowledge of the use of quaternions can look it over to
> determine if there are any other functions/macros that would be needed for a
> more complete quaternion library, that would be great.

yes, a thorough assessment and perhaps a little "spit & polish", and I'd second
your "nomination".


> It would also be nice of someone could rewrite the macros as functions so that
> they can be used at render time.

I was/am "chuffed" the 20-odd years old code renders unmodified using beta.2
:-).


regards, jr.


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