POV-Ray : Newsgroups : povray.binaries.images : some superellipsoids (88k) Server Time
19 Aug 2024 18:27:01 EDT (-0400)
  some superellipsoids (88k) (Message 1 to 10 of 20)  
Goto Latest 10 Messages Next 10 Messages >>>
From: Christoph Hormann
Subject: some superellipsoids (88k)
Date: 17 Oct 2000 09:08:43
Message: <39EC4F5A.E3DB3F9@schunter.etc.tu-bs.de>
The story:
I decided to do something *without* isosurfaces and *without* radiosity and
therefore played with some superquadric ellipsoids.  But of course i could not
resist trying out how it looks with radiosity - and it really was much better,
so ...  :-)

concerning isosurfaces - rendering time was already 4h30min ...

The textures were made using displace warps, I do not like the gray/blue one
right now, so it will probably be changed.

Comments, etc. welcome

Christoph


-- 
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/


Post a reply to this message


Attachments:
Download 'sq_warp_01.jpg' (88 KB)

Preview of image 'sq_warp_01.jpg'
sq_warp_01.jpg


 

From: Tony[B]
Subject: Re: some superellipsoids (88k)
Date: 17 Oct 2000 09:21:36
Message: <39ec5260@news.povray.org>
Just in case you didn't know, which it seems you don't, isosurface
superellipsoids render faster than the real superellipsoid object in
POV-Ray... Nice image.


Post a reply to this message

From: ddombrow
Subject: Re: some superellipsoids (88k)
Date: 17 Oct 2000 09:35:40
Message: <39ec55ac@news.povray.org>
Neat, I like it. Don't like the blue and grey one though. I wonder how it
would look with a chrome texture.

--
Dan D.


Post a reply to this message

From: Christoph Hormann
Subject: Re: some superellipsoids (88k)
Date: 17 Oct 2000 09:50:23
Message: <39EC5920.5E02762B@schunter.etc.tu-bs.de>
"Tony[B]" wrote:
> 
> Just in case you didn't know, which it seems you don't, isosurface
> superellipsoids render faster than the real superellipsoid object in
> POV-Ray... 

I know, and just checked it for this scene, it's about 25% faster here (without
radiosity), but I originally meant using isosurfaces with some pigment function
instead of the normal statement and that would be much slower anyway.  

> Nice image.

Thank You.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/


Post a reply to this message

From: Christoph Hormann
Subject: Re: some superellipsoids (88k)
Date: 17 Oct 2000 09:53:10
Message: <39EC59C7.D58C289F@schunter.etc.tu-bs.de>
ddombrow wrote:
> 
> Neat, I like it. Don't like the blue and grey one though. I wonder how it
> would look with a chrome texture.
> 

Thanks, i thought of something metallic too, but i first have to build up
something behind the camera to have a nice reflection.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/


Post a reply to this message

From: ddombrow
Subject: Re: some superellipsoids (88k)
Date: 17 Oct 2000 09:59:51
Message: <39ec5b57$1@news.povray.org>
That's a good thought, maybe try throwing something unexpected into the
reflection.

--
Dan D.

"Christoph Hormann" wrote in message...
> but i first have to build up something behind the camera >to have a nice
reflection.
>
> Christoph


Post a reply to this message

From: ryan constantine
Subject: Re: some superellipsoids (88k)
Date: 17 Oct 2000 11:32:55
Message: <39EC7160.7C7A014C@yahoo.com>
ddombrow wrote:
> 
> That's a good thought, maybe try throwing something unexpected into the
> reflection.

like a banana.


Post a reply to this message

From: ian mcdonald
Subject: Re: some superellipsoids (88k)
Date: 17 Oct 2000 11:47:22
Message: <39ec748a@news.povray.org>
Nice image, very different but attractive. I like the positioning and
apparent random nature of the SEs.

I would love to see the source for this.

ian

Christoph Hormann <Chr### [at] schunteretctu-bsde> wrote in message
news:39E### [at] schunteretctu-bsde...
>
> The story:
> I decided to do something *without* isosurfaces and *without* radiosity
and
> therefore played with some superquadric ellipsoids.  But of course i could
not
> resist trying out how it looks with radiosity - and it really was much
better,
> so ...  :-)


Post a reply to this message

From: Christoph Hormann
Subject: Re: some superellipsoids (88k)
Date: 17 Oct 2000 12:16:49
Message: <39EC7B72.83C0A4C1@schunter.etc.tu-bs.de>
ian mcdonald wrote:
> 
> Nice image, very different but attractive. 

Thanks, but different form what ? :-)

> I like the positioning and apparent random nature of the SEs.
> 
> I would love to see the source for this.
> 

The positioning/randomizing is really not that difficult:

#macro Var_SQ()
superellipsoid { 
  <rand(RX)*0.99 + 0.01, rand(RY)*0.99 + 0.01>   
  material { 
    M_warped 
    translate <rand(RX), rand(RY), rand(RZ)>*10 
  }                      
}
#end  

union {  
  #declare CnY=0;  
  #while (CnY<60)   
    #declare CnX=0;  
    #while (CnX<60)   
      object { Var_SQ() translate <CnX, -CnY-2, -1> }
      #declare CnX=CnX+2;
    #end 
    #declare CnY=CnY+2;
  #end                    
} 

-- 
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/


Post a reply to this message

From: Christoph Hormann
Subject: Re: some superellipsoids (88k)
Date: 17 Oct 2000 12:53:58
Message: <39EC8410.7EA06CF@schunter.etc.tu-bs.de>
ryan constantine wrote:
> 
> like a banana.

That's a funny idea, but i thought about sticking to superellipsoids.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/


Post a reply to this message

Goto Latest 10 Messages Next 10 Messages >>>

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