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From: David Fontaine
Subject: Re: Phalanx revisited, with blur
Date: 10 Jul 2001 16:06:25
Message: <3B4B5E62.F352C133@faricy.net>
Povray wrote:
> 
>     Out of curiousity, what speed machine was this on?

P3-450, 128M

-- 
David Fontaine  <dav### [at] faricynet>  ICQ 55354965
My raytracing gallery:  http://davidf.faricy.net/


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From: Christoph Hormann
Subject: Re: Phalanx revisited, with blur
Date: 10 Jul 2001 17:03:10
Message: <3B4B6E0B.24A75226@gmx.de>
David Fontaine wrote:
> 
> > There is probably also some room for optimization through clever grouping
> > of the different objects.
> 
> Like how?  Grouping doesn't matter for just a big pile of objects I
> thought.  Maybe I can speed up individual pieces though...
> 

If you have a lot of objects in your scene you can speed up rendering a
lot with efficient grouping, for example when when you have a regular
tiling and unionize the items in a tree structure you will get optimal
performance, because through the automatic bounding Povray will not need
to test every ray against every single object.  

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/


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From: David Fontaine
Subject: Bounding test
Date: 10 Jul 2001 17:38:03
Message: <3B4B7384.FE83241A@faricy.net>
I get 9 seconds either way (800x600 no AA)

camera { location <1,3,-5>*.7 look_at 0 }

light_source { <1,3,-5> 1 }

#local Hier = on;

   union {
      #local _y1 = 0;
      #while (_y1 < 2)
         #local _x1 = 0;
         #while (_x1 < 2)
            #if(Hier) union { #end
               #local _y2 = 0;
               #while (_y2 < 2)
                  #local _x2 = 0;
                  #while (_x2 < 2)
                     #if(Hier) union { #end
                        #local _y3 = 0;
                        #while (_y3 < 2)
                           #local _x3 = 0;
                           #while (_x3 < 2)
                              #local _x = _x1*4+_x2*2+_x3;
                              #local _y = _y1*4+_y2*2+_y3;
                              box {
<_x/4-.95,_y/4-.95,-1>,<_x/4-.8,_y/4-.8,1> }
                              #local _x3 = _x3 + 1;
                           #end
                           #local _y3 = _y3 + 1;
                        #end
                     #if(Hier) } #end
                     #local _x2 = _x2 + 1;
                  #end
                  #local _y2 = _y2 + 1;
               #end
            #if(Hier) } #end
            #local _x1 = _x1 + 1;
         #end
         #local _y1 = _y1 + 1;
      #end
      pigment { color rgb .7 }
   }

-- 
David Fontaine  <dav### [at] faricynet>  ICQ 55354965
My raytracing gallery:  http://davidf.faricy.net/


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From: David Fontaine
Subject: Re: Phalanx revisited, with blur
Date: 10 Jul 2001 18:07:10
Message: <3B4B7A40.F25DF0F5@faricy.net>
Francois Labreque wrote:
> 
> characters!).  You also need a flag-bearer.

What did you have in mind?  I'm no phalanx expert, so... you mean like a
guy on a horse in front of the phalanx holding a flag?  But I haven't
modelled a horse, so...

-- 
David Fontaine  <dav### [at] faricynet>  ICQ 55354965
My raytracing gallery:  http://davidf.faricy.net/


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From: Francois Labreque
Subject: Re: Phalanx revisited, with blur
Date: 10 Jul 2001 20:27:17
Message: <3B4B9D42.B190293F@videotron.ca>
David Fontaine wrote:
> 
> Francois Labreque wrote:
> >
> > characters!).  You also need a flag-bearer.
> 
> What did you have in mind?  I'm no phalanx expert, so... you mean like a
> guy on a horse in front of the phalanx holding a flag?  But I haven't
> modelled a horse, so...

Not necessarily.  On most battlefields - until the WW's.  Now they
probably use GPS-brain implants - armies had a guy walking or riding a
horse with the troups holding up a flag (or standard) so the soldiers
knew where to go.

For an equestrian example, check:
http://www.q-net.net.au/~knowsol/WHFB_Images/cw_std2.jpg

For a "pedestrian" version, check:
http://www.davidsangster.ndirect.co.uk/As/asa14.html

-- 
Francois Labreque | Unfortunately, there's no such thing as a snooze
    flabreque     | button on a cat who wants breakfast.
        @         |      - Unattributed quote from rec.humor.funny
   videotron.ca


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From: Francois Labreque
Subject: Re: Phalanx revisited, with blur
Date: 10 Jul 2001 20:34:43
Message: <3B4B9F02.7C9C63EB@videotron.ca>
David Fontaine wrote:
> 
> Francois Labreque wrote:
> >
> > Very nice clouds, BTW!  Image map?
> 
> Jaime Vives Piqueres' method.

Which would be?

-- 
Francois Labreque | Unfortunately, there's no such thing as a snooze
    flabreque     | button on a cat who wants breakfast.
        @         |      - Unattributed quote from rec.humor.funny
   videotron.ca


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From: Ian Burgmyer
Subject: Re: Phalanx revisited, with blur
Date: 11 Jul 2001 00:14:36
Message: <3b4bd2ac$1@news.povray.org>
"David Fontaine" <dav### [at] faricynet> wrote in message
news:3B4### [at] faricynet...> > ...and by the > > way, what processor
do you run it on to get 7 pps?  If you're
> > getting that on an Athlon or something, there no WAY I'm using focal
blur in
> > my scenes (I'm still on a P2-400, hehe) ;-)
>
> P3-450

Okay, that's not that bad :-)

Let's just say, if I ever want to use focal blur, I think I can do it on my
dad's P3-800...hehe.  Use your parents wisely ;-)

-Ian


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From: Thomas Lake
Subject: Re: Phalanx revisited, with blur
Date: 11 Jul 2001 02:31:14
Message: <3b4bf2b2@news.povray.org>
<snip>
> Not necessarily.  On most battlefields - until the WW's.  Now they
> probably use GPS-brain implants - armies had a guy walking or riding a
> horse with the troups holding up a flag (or standard) so the soldiers
> knew where to go.

Now there is a job that would have to pay well! I presume that this would be
equally useful for the opposing soldiers, a sort of "shoot here" sign.


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From: Christoph Hormann
Subject: Re: Bounding test
Date: 11 Jul 2001 05:51:23
Message: <3B4C221C.9D470A52@gmx.de>
David Fontaine wrote:
> 
> I get 9 seconds either way (800x600 no AA)
> 
> [...]

I'm not sure, but i usually get quite a lot of speed increase this way. 
Probably the difference is not that large with such a fairly simple
scene.  

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/


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From: Francois Labreque
Subject: Re: Phalanx revisited, with blur
Date: 11 Jul 2001 08:04:23
Message: <3B4C40A8.2732B686@videotron.ca>
Thomas Lake wrote:
> 
> <snip>
> > Not necessarily.  On most battlefields - until the WW's.  Now they
> > probably use GPS-brain implants - armies had a guy walking or riding a
> > horse with the troups holding up a flag (or standard) so the soldiers
> > knew where to go.
> 
> Now there is a job that would have to pay well! I presume that this would be
> equally useful for the opposing soldiers, a sort of "shoot here" sign.

Indeed.  It was a very good military strategy to aim at the standard
bearers first to confuse their troops.  Just like in todays combats,
factions will try to first take down coms centers.

-- 
Francois Labreque | Unfortunately, there's no such thing as a snooze
    flabreque     | button on a cat who wants breakfast.
        @         |      - Unattributed quote from rec.humor.funny
   videotron.ca


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