POV-Ray : Newsgroups : povray.binaries.images : Perlin's Improved Noise comparison ... (24K) : Re: Perlin's Improved Noise comparison ... (24K) Server Time
7 Nov 2024 19:25:35 EST (-0500)
  Re: Perlin's Improved Noise comparison ... (24K)  
From: Mike Andrews
Date: 30 Jun 2004 05:35:00
Message: <web.40e2890cb1f4587f59735c0c0@news.povray.org>
"Slime" <fak### [at] emailaddress> wrote:
> > I'll put the scene file in p.b.s-f in case anyone want's to have a look.
>
> Woah, you wrote this in SDL? What was the render time like? Was it
> acceptable? If so, you should make this into an include file.
>
>  - Slime
>  [ http://www.slimeland.com/ ]

Yes - SDL. The awkward bit was figuring out how to produce the 3D hashing
function, but then I realised that I could use a spline function for array
lookup; just put the array values at integer points along the spline and
voila!

Render time was 22min on a 1GHz Athlon at 800x600, about 90% of the time
spent on the top half ... so it's not really that useable in real scenes.

Mike.


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.