POV-Ray: Newsgroups: povray.unofficial.patches: Photon patch

POV-Ray : Newsgroups : povray.unofficial.patches : Photon patch		Server Time 2 Sep 2024 16:21:54 EDT (-0400)

From: Fabian Brau
Subject: Photon patch
Date: 18 Oct 1999 07:14:21
Message: <380B0F72.98440533@umh.ac.be>

Hello

I have found something strange:
I have a PII 400MHz with win 98. When I trace skyvase.pov, this take
1min30s. This is a correct time (see benchmark (the adress can be found
at Ken site)). When I used uvpov.exe (by Nathan Koop) the time is
1min46s (without any photon!). I say ok, certainly that the uvpov is not
PII optimized (the official POV I use is PII optimized). But when I
trace the file gdiamond1.pov (see message "diamond macro" from Simen
Kvaal in the image group) the time is (for 160*120 no AA) 11 sec with
the official pov PII optimized and 2min 25sec with uvpov (without
photons) this 13 time slower!!
Someone can make a PII otimized verion of uvpov! Thanks!

Fabian.

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From: Nathan Kopp
Subject: Re: Photon patch
Date: 18 Oct 1999 22:50:32
Message: <380bdc78@news.povray.org>

This seems like something more than just PII optimization.  Was there some
major optimization between 3.1a and 3.1g that I missed?

-Nathan

Fabian Brau <fab### [at] umhacbe> wrote...
> Hello
>
> I have found something strange:
> I have a PII 400MHz with win 98. When I trace skyvase.pov, this take
> 1min30s. This is a correct time (see benchmark (the adress can be found
> at Ken site)). When I used uvpov.exe (by Nathan Koop) the time is
> 1min46s (without any photon!). I say ok, certainly that the uvpov is not
> PII optimized (the official POV I use is PII optimized). But when I
> trace the file gdiamond1.pov (see message "diamond macro" from Simen
> Kvaal in the image group) the time is (for 160*120 no AA) 11 sec with
> the official pov PII optimized and 2min 25sec with uvpov (without
> photons) this 13 time slower!!
> Someone can make a PII otimized verion of uvpov! Thanks!
>
> Fabian.
>

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From: Ken
Subject: Re: Photon patch
Date: 18 Oct 1999 23:55:06
Message: <380BEB2A.44447274@pacbell.net>

Nathan Kopp wrote:
> 
> This seems like something more than just PII optimization.  Was there some
> major optimization between 3.1a and 3.1g that I missed?
> 
> -Nathan

See my version speed difference report in the announcement group. There
was a large improvement in speed for some functions between v3.1b and
v3.1d. Some of these were rather significant.

-- 
Ken Tyler -  1100+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

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