POV-Ray : Newsgroups : povray.binaries.images : plastic key with radiosity (WIP?) Server Time
31 Oct 2024 19:30:21 EDT (-0400)
  plastic key with radiosity (WIP?) (Message 1 to 7 of 7)  
From: Apache
Subject: plastic key with radiosity (WIP?)
Date: 18 Jun 2002 22:58:27
Message: <3d0ff353@news.povray.org>
Another post with that key, this time using radiosity (with some artifacts).
I tried rendering the thing in 1152x864, but after a few days of rendering
povray gave up on it. It gave an error telling that allocating any more
memoray just wasn't possible and that it would strike if I'd try this again.
;-)
So I rendered it with about the same settings and 800x600 and already after
about 4 days it produced the attached image.

No lightsource, just a sphere with a very high ambient. I think the results
are better than using photons which I tried before but didn't give me the
results I wanted. And sorry, no soft edges. (yet?)

--
Apache
POV-Ray Cloth experiments: http://geitenkaas.dns2go.com/experiments/
Email: apa### [at] yahoocom
ICQ: 146690431


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Attachments:
Download 'key_800x600.jpg' (58 KB)

Preview of image 'key_800x600.jpg'
key_800x600.jpg


 

From: bob h
Subject: Re: plastic key with radiosity (WIP?)
Date: 18 Jun 2002 23:31:30
Message: <3d0ffb12$1@news.povray.org>
"Apache" <apa### [at] yahoocom> wrote in message
news:3d0ff353@news.povray.org...
>
> No lightsource, just a sphere with a very high ambient. I think the
results
> are better than using photons which I tried before but didn't give me the
> results I wanted. And sorry, no soft edges. (yet?)

Something tells me you are working with a relatively slow CPU there. Either
that or you have incredible settings for radiosity, AA, whatever else. The
key is looking pretty good now, maybe more a composite material instead of
plastic?

About the softer edges. Having just done a key too, after seeing yours first
though, you might give a try at the same thing I did. Which was, make a
hf_gray_16 image of the key object having a gradient y color_map going from
rgb 0 to rgb 1 with a focal blurred camera, and use that for a heightfield.
In fact, going about it this way you could add scratches too by overlaying
another partially transparent texture.

Wish I had the ability to edit 16 bit images in a paint program.

Oh yeah, I must comment on the teeth. Checking my keys here they don't ever
cut into that narrower guiding rail part but only into the wider lower one.
Thought I better speak up about that. Still, it's a better key than mine.

bob h


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From: Apache
Subject: Re: plastic key with radiosity (WIP?)
Date: 19 Jun 2002 02:39:55
Message: <3d10273b$1@news.povray.org>
radiosity{
      error_bound .125
      count 1575
      nearest_count 15
      recursion_limit 1
      normal on
      brightness 2//brightness 13.5
      gray_threshold .1
      pretrace_start .16 //pretrace_start .04
      pretrace_end .02 //pretrace_end .005
      always_sample on
      adc_bailout 1/255
    }

--
Apache
POV-Ray Cloth experiments: http://geitenkaas.dns2go.com/experiments/
Email: apa### [at] yahoocom
ICQ: 146690431


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From: Greg M  Johnson
Subject: Re: plastic key with radiosity (WIP?)
Date: 19 Jun 2002 08:18:51
Message: <3d1076ab$1@news.povray.org>
Cool, but I don't believe a *plastic* key would have such sharp edges...


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From: Francois Labreque
Subject: Re: plastic key with radiosity (WIP?)
Date: 19 Jun 2002 14:24:56
Message: <3D10CC37.60907@videotron.ca>
Apache wrote:
> Another post with that key, this time using radiosity (with some artifacts).
> I tried rendering the thing in 1152x864, but after a few days of rendering
> povray gave up on it. It gave an error telling that allocating any more
> memoray just wasn't possible and that it would strike if I'd try this again.
     ^^^^^

YKYBRTTLW...

Nice pic, btw.

-- 
/*Francois Labreque*/#local a=x+y;#local b=x+a;#local c=a+b;#macro P(F//
/*    flabreque    */L)polygon{5,F,F+z,L+z,L,F pigment{rgb 9}}#end union
/*        @        */{P(0,a)P(a,b)P(b,c)P(2*a,2*b)P(2*b,b+c)P(b+c,<2,3>)
/*   videotron.ca  */}camera{location<6,1.25,-6>look_at a orthographic}


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From: Apache
Subject: Re: plastic key with radiosity (WIP?)
Date: 19 Jun 2002 20:04:48
Message: <3d111c20$1@news.povray.org>
wow.... "memoray" !!!
I never used moray.....

--
Apache
POV-Ray Cloth experiments: http://geitenkaas.dns2go.com/experiments/
Email: apa### [at] yahoocom
ICQ: 146690431


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From: Apache
Subject: Re: plastic key with radiosity (WIP?)
Date: 19 Jun 2002 20:05:05
Message: <3d111c31@news.povray.org>
If you'd only know..... :-)

--
Apache
POV-Ray Cloth experiments: http://geitenkaas.dns2go.com/experiments/
Email: apa### [at] yahoocom
ICQ: 146690431


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