POV-Ray : Newsgroups : povray.unofficial.patches : Speed difference in MegaPOV... Server Time
2 Nov 2024 05:20:02 EDT (-0400)
  Speed difference in MegaPOV... (Message 1 to 4 of 4)  
From: Rich
Subject: Speed difference in MegaPOV...
Date: 29 Feb 2000 11:12:15
Message: <8EE955C1Aspammindspringcom@204.213.191.228>
Just curious, has anyone looked at the speed difference between 
MegaPOV and the official POV when rendering my chrome/glass spheres scene?  
Since posting the source, I haven't heard anything about it.

Rich


Post a reply to this message

From: Nathan Kopp
Subject: Re: Speed difference in MegaPOV...
Date: 29 Feb 2000 21:52:40
Message: <38bc85f8@news.povray.org>
I've been working on optimizing MegaPov.

Here are features that caused slowdown even when not in use:
* motion blur (it wasn't too bad, but even a little bit is bad)
* uv mapping - this was the worst
* dispersion
* reflection blur

There are other factors that are also affecting the speed, but I haven't
tracked them all down yet.  So far, I've fixed motion blur and uv mapping,
and I'll be fixing the others soon.  The next version of MegaPov will be
significantly faster.

-Nathan

Rich <spa### [at] mindspringcom> wrote...
>     Just curious, has anyone looked at the speed difference between
> MegaPOV and the official POV when rendering my chrome/glass spheres scene?
> Since posting the source, I haven't heard anything about it.
>
> Rich


Post a reply to this message

From: Nieminen Juha
Subject: Re: Speed difference in MegaPOV...
Date: 1 Mar 2000 05:41:39
Message: <38bcf3e2@news.povray.org>
Nathan Kopp <Nat### [at] koppcom> wrote:
: Here are features that caused slowdown even when not in use:

  This is exactly why I'm not very comfortable with the idea that povray 3.5
would have every little patch anyone has made, no matter how useless it is.
The more features it has, the slower the program will be (even if the feature
is not used).

  In my opinion a patch is good if:

  a) It does something useful

and:

  b) It can't be done with the current implementation, or if it can, it would
     be a lot slower than the patch (or take a lot more memory).


  This is only my opinion.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/


Post a reply to this message

From: Rich
Subject: Re: Speed difference in MegaPOV...
Date: 1 Mar 2000 12:21:14
Message: <8EEA6F615spammindspringcom@204.213.191.228>
Nat### [at] Koppcom (Nathan Kopp) wrote in <38bc85f8@news.povray.org>:

>I've been working on optimizing MegaPov.
<snip>
>The next version of
>MegaPov will be significantly faster.

    	Wow, now I can imagine that I have contributed to the POV project in 
some way, no matter how small.  Thanks!

-- 
Rich Allen
(Remove SPAM from my address to reply by e-mail)


Post a reply to this message

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