POV-Ray : Newsgroups : povray.binaries.animations : Tim's test scene passed [MPG1, 572kb] : Re: Tim's test scene passed [MPG1, 572kb] Server Time
18 Jul 2024 18:30:34 EDT (-0400)
  Re: Tim's test scene passed [MPG1, 572kb]  
From: Rune
Date: 10 Mar 2004 14:51:29
Message: <404f71c1@news.povray.org>
Tim Nikias v2.0 wrote:
>> What is the scenario that requires this object
>> based impact-effect? I'm just curious.
>
> For example, when the rain hits the worm, it'll
> splash, when it hits the floor, it just dies.

Yes, I can see the point. I didn't aim for that level of sophistication,
and it would have made the subset-framing (and looping animations, which
use practically the same technique) practically impossible.

> Well, my non-IO-System made use of rand() extensively.
> All you need to take care of is that you use the same
> amount of calls to it all the time. Whenever I made
> calls to the rand-stream, I *always* made them, even
> if I didn't require it for the setup.

I can see how that might not be so bad for a non-IO-system, but for a
IO-system it sounds pretty inefficient and cumbersome. I used custom
hash-functions based on the insignificant digits of some
sinus-functions. They always return the same output number given the
same input number, yet the output numbers for consecutive input numbers
are completely random (almost).

Rune
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