that green ball that the camera follows should be invisible no?

--

Ian

Inkwell: Ian's Homepage
http://www.topcities.com/cartoon/inkwell/index.htm
Greg M. Johnson <"gregj;-)56590\""@aol.c;-)om> wrote in message
news:396a80b4@news.povray.org...
> I changed my bouncing algorithm to a rolling one. The result is below.
> A  one Mb 320 x 240 version is at:
>
>  http://members.xoom.com/_XMCM/gregjohn/animation.html#POV13
>
> It's actually the most simple one to date. The particles do not actually
> consider each other's presence (no collision avoidance or bouncing).
> The acceleration of the particle is simply the x & z components of the
> normal at the particle's location. If there's interest, I can make a
> page with the algorithm like I did with the boids...
>
> I think I  know how to make a texture on the particles themselves rotate
> properly for the motion they make across the surface. It think however
> that my approach would be very inelegant and a real programming
> headache. Any pointers?
>
> Q: Is there an easy way in matrices to say:
> I rotated <13,5,5>, then <14,4,2>, then,....
> Can I just add these up somehow?
>

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