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I'm trying EVERYTHING!
What about a simple (raytraced of course) Doom clone where you can shoot the
members of the POV team? ;)
--
Jonathan.
"Thorsten Froehlich" <tho### [at] trf de> ha scritto nel messaggio
news:3c0d437b$1@news.povray.org...
> In article <3c0d39b7@news.povray.org> , Warp <war### [at] tagpovrayorg> wrote:
>
> > Care to tell us how it is activated?-)
>
> On Windows, look into the Windows source code (you have access to that
part
> of the depot, don't you?). For Macs it won't help you because I am going
to
> keep that source code part for myself and I am not going to tell you more
> than that it is there in the about box, accessible via an obvious key
> combination.
>
> Thorsten
>
> ____________________________________________________
> Thorsten Froehlich, Duisburg, Germany
> e-mail: tho### [at] trfde
>
> Visit POV-Ray on the web: http://mac.povray.org
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On Tue, 4 Dec 2001 22:53:49 +0100, JRG wrote:
> I'm trying EVERYTHING!
Don't try too hard; the answer is right there in the text somewhere.
--
#macro R(L P)sphere{L __}cylinder{L P __}#end#macro P(_1)union{R(z+_ z)R(-z _-z)
R(_-z*3_+z)torus{1__ clipped_by{plane{_ 0}}}translate z+_1}#end#macro S(_)9-(_1-
_)*(_1-_)#end#macro Z(_1 _ __)union{P(_)P(-_)R(y-z-1_)translate.1*_1-y*8pigment{
rgb<S(7)S(5)S(3)>}}#if(_1)Z(_1-__,_,__)#end#end Z(10x*-2,.2)camera{rotate x*90}
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In article <3c0d3e96.31659740@news.povray.org> , ken### [at] uniplanit (Angelo
'kENpEX' Pesce) wrote:
> Wow!
> Have U seen realtime raytracing demos like naturesuxx, naturestillsuxx
> etc?
I checked out some (not sure about the names) but had a problem running a
lot of them (might be that they don't run in Windows DOS boxes). The ones I
got to run were fairly impressive on one hand, but not that much if one
knows how simple some of the effects are if only the scene geometry is known
in advance...
> How does povray compare to those rtrt engines? (of course I know
> that povray is not a realtime raytracer) Can U tell me what kind of
> optimizations are included in povray 3.5 and how much speed gain you
> get over the previous version?
Actually, I could even do it with POV-Ray 3.0. I did it for 3.5 just
because I needed some Easter egg so I deactivated some optimizations I
wasn't sure if they would allow me to change the camera or light source
without rebuilding the scene or other side effects (I could have looked into
the code to find out, but didn't bother). Consequently I am only using
bounding box optimization because those don't depend on camera or light
positions. With this particular optimization the scene is already fairly
equal in computation time when using between five to ten primitives and only
gets slower/faster with more primitives as the screen fills up. Of course,
turning off reflection and phong shading nearly doubles the speed...
Thorsten
____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde
Visit POV-Ray on the web: http://mac.povray.org
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Warp wrote:
>
> It is not impossible that some general tesselation routine would be added
> in the future.
> (Of course tesselation is slower than one may believe, and the meshes can
> take huge amounts of memory, so the feasibility of tesselating a whole
> scene can be sometimes dubious.)
>
I doubt this will be of universal usability, the memory requirements can
be enormous. With increasing processor speed isosurfaces become more and
more usable as an alternative in many cases too.
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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In article <3c0d3e96.31659740@news.povray.org> , ken### [at] uniplanit (Angelo
'kENpEX' Pesce) wrote:
> Have U seen realtime raytracing demos like naturesuxx, naturestillsuxx
OK, I looked this one up and saw some pictures. I have to say it is indeed
more impressive than all other demos i have seen before. Of course, it
still requires DOS mode direct hardware access :-( Unfortuantely I am
forced to draw to the screen using a Mac OS system function and Chris has to
use a Windows system function. This is kind of drawing has some difficult
to overcome speed problem...
Thorsten
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On Tue, 04 Dec 2001 23:22:01 +0100, "Thorsten Froehlich"
<tho### [at] trfde> wrote:
>In article <3c0d3e96.31659740@news.povray.org> , ken### [at] uniplanit (Angelo
>'kENpEX' Pesce) wrote:
>
>> Have U seen realtime raytracing demos like naturesuxx, naturestillsuxx
>
>OK, I looked this one up and saw some pictures. I have to say it is indeed
>more impressive than all other demos i have seen before. Of course, it
>still requires DOS mode direct hardware access :-(
?!? They are windows demos, they use directX
If you want to be impressed more, download fresnel2 (it requires a
fast 3d openGL card) or rtrt intros by spinningkids and by mfx
>Unfortuantely I am
>forced to draw to the screen using a Mac OS system function and Chris has to
>use a Windows system function. This is kind of drawing has some difficult
>to overcome speed problem...
If that's the problem with your easter egg, just download the tinyPTC
library... :) It's available for maaaaaaany plattforms, and it will
give U an high performance display window (directx, videoforwindows or
gdi for windows, dunno for others, of coz directx is the faster way)
>
> Thorsten
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"Angelo 'kENpEX' Pesce" <ken### [at] uniplanit> wrote:
> ?!? They are windows demos, they use directX
> If you want to be impressed more, download fresnel2 (it requires a
> fast 3d openGL card) or rtrt intros by spinningkids and by mfx
Could you please give me some URLs?
--
Jonathan.
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Angelo 'kENpEX' Pesce <ken### [at] uniplanit> wrote:
: It's not dubious at all, as many other raytracers do that...
So instead of having 1 million spheres take about 50 Megs of memory,
you want them tesselated so that they will take 1 Gigabyte of memory?
: It's
: feasible, but I don't think it will be done for povray
Why not? I don't see any reason why it couldn't be implemented in the future.
Tesselating finite objects is not impossible (you just need to know its limits
and you have to be able to trace it, and that's exactly what raytracing does).
--
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}// - Warp -
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In article <3c0d5211.36647845@news.povray.org> , ken### [at] uniplanit (Angelo
'kENpEX' Pesce) wrote:
> ?!? They are windows demos, they use directX
> If you want to be impressed more, download fresnel2 (it requires a
> fast 3d openGL card) or rtrt intros by spinningkids and by mfx
I downloaded and tried naturesuxx on a Celeron 400 running under Win ME with
128 MB. At 320*240 with all features enabled it didn't get over 10
frames/second, which I don't exactly consider "realtime". Granted, the
graphics card is from a previous PC and with 2 MB of DRAM. However, at
320*240 that shouldn't be a bandwidth bottleneck. I will try it on a faster
system tomorrow...
> If that's the problem with your easter egg, just download the tinyPTC
> library... :) It's available for maaaaaaany plattforms, and it will
> give U an high performance display window (directx, videoforwindows or
> gdi for windows, dunno for others, of coz directx is the faster way)
Well, it is just an Easter egg coded in less than 250 lines total. Anything
else would just bloat the code. Of course it can be done much faster with
much more code and time...
Thorsten
____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde
Visit POV-Ray on the web: http://mac.povray.org
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In article <3c0d53f6@news.povray.org> , "JRG" <jrg### [at] hotmailcom> wrote:
>> ?!? They are windows demos, they use directX
>> If you want to be impressed more, download fresnel2 (it requires a
>> fast 3d openGL card) or rtrt intros by spinningkids and by mfx
>
> Could you please give me some URLs?
I got fairly fast links to download the two mentioned demos from
<http://www.oroboro.com/rafael/project/raytracetext.html>. He has a link to
the creators of the demo as well. For more demos try www.scene.org (slow
http, at least for me, and their ftp servers are full). Otherwise google
really helps!
Thorsten
____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde
Visit POV-Ray on the web: http://mac.povray.org
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