Jaime Vives Piqueres wrote:

> Andrew, sorry if this was not another "brazil challenge", but I've not 
> resisted to try my old bolt model with such scene.  I wanted to try it with 
> my new way of making light_sources (very strong and very short ones).
> 
> I my self was impressed by the result: IMHO, we all don't really know (yet) 
> what POV is capable of...
> 


THEM ROLLEXES KEEP GETTING AWSOMER AND AWSOMER!!!


-- 
/*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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DAMN that nice!!

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Thomas Lake wrote:
> 
> Neat did you play with the individual colour channels to get this effect?

Adjust color balance, shadows -> blue+cyan, highlights -> red+yellow.
And some layer combinations, and various other tweaks. I think the
usual way to do this is to convert to tritone.

 
_____________
Kari Kivisalo

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> Andrew, sorry if this was not another "brazil challenge", but I've not
> resisted to try my old bolt model with such scene.  I wanted to try it
with
> my new way of making light_sources (very strong and very short ones).
>
> I my self was impressed by the result: IMHO, we all don't really know
(yet)
> what POV is capable of...

Stunning

perhaps we should have a site comparing pov & braz :)


--

Rick

Kitty5 WebDesign - http://Kitty5.com
POV-Ray News & Resources - http://Povray.co.uk
TEL : +44 (01270) 501101 - FAX : +44 (01270) 251105 - ICQ : 15776037

PGP Public Key
http://pgpkeys.mit.edu:11371/pks/lookup?op=get&search=0x231E1CEA

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Damn.. that's SO much better than mine :-(

Well done.

How did you make the bolts, especially the indentations?

Andy

"Jaime Vives Piqueres" <jai### [at] ignoranciaorg> wrote in message
news:3c5a570f@news.povray.org...
> Andrew, sorry if this was not another "brazil challenge", but I've not
> resisted to try my old bolt model with such scene.  I wanted to try it
with
> my new way of making light_sources (very strong and very short ones).
>
> I my self was impressed by the result: IMHO, we all don't really know
(yet)
> what POV is capable of...
>
> --
> Jaime Vives Piqueres
>
> La Persistencia de la Ignorancia
> http://www.ignorancia.org

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Hugo wrote:

> I refuse to think any other renderer can do better than Pov


There is room for some simple quality and speed improvement in POV-Ray.

Example 1 : Brazil does "bokeh", which is the simulation of the way
highlights appear (bigger) in blurry areas, like with a real photograph.
There is a POV-Ray patch (MLPov) that implements a first draft of it,
promising.

Example 2 : Brazil (and most commercial radiosity systems) does NOT
take reflected (and refracted) rays into account when it takes radiosity
samples !!!  Big speedup there, for almost no difference in result (not
a realistic difference, anyway).  If anyone doubts that, I have a
set of images that proves it.
(and the two-step rendering experiences of Jaime and others are
  also in favour of that).

Fabien.

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> Damn.. that's SO much better than mine :-(
>

Hi Andrew,

In my opinion, your bolts are slightly better looking than Jaime's, so don't
be TOO sorry please!  It's true that Jaime's version has some things better
than yours: The contrast is better and the metal plate is better textured.
But your bolts look more dusty = a great thing.. They also have scratches
where they have been touched by ...a tool ... you know (I miss the english
word for it)

Jaime's modelling is presumably done with CSG.. That's technically more
efficient than your heightfield, but in this particular case, it looks too
perfect, so your bolts wins here, too... Anyway, both of you have done a
terrific work!  To merge the results would be perfect.

Regards,
Hugo

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my only complaint is that the blur seems to cut to sharply between not
blurred and blurred. that is, on the bottom bolt atleast.

perhaps though it is just due to where that bolt is placed. like if it had
more of the bolts head in the not-quite-so-blurred part then the blur might
look more gradual.

other than that, it looks stunning

Jaime Vives Piqueres <jai### [at] ignoranciaorg> wrote in message
news:3c5a570f@news.povray.org...
> Andrew, sorry if this was not another "brazil challenge", but I've not
> resisted to try my old bolt model with such scene.  I wanted to try it
with
> my new way of making light_sources (very strong and very short ones).
>
> I my self was impressed by the result: IMHO, we all don't really know
(yet)
> what POV is capable of...
>
> --
> Jaime Vives Piqueres
>
> La Persistencia de la Ignorancia
> http://www.ignorancia.org

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they look like cookies coming out of a conveyer belt...
Or halls, peppermint patty's, some kind of food...

Andrew Cocker wrote:

> Hi,
>
> It's been a long while since I posted anything, but as I very recently
> FINALLY got a new pc (1Ghz Athlon, 256 Meg DDR etc), I'm POV-ing again.
>
> This piece was inspired by a BRAZIL render - maybe some of you have seen it.
> If so, you'll be able to see that mine comes nowhere near the
> photorealistism of that work. Mine is definitely a WIP. I don't like the
> textures, nor can I even approach the contrast from dark to light of the
> BRAZIL render (even though that artist mentions using post-processing, I
> still feel that my render could be improved. Maybe using radiosity was a bad
> idea.)
>
> Anyway, any comments would be welcome.
>
> All the best,
>
> Andy Cocker
>
>  [Image]

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Andrew Cocker wrote:

> Damn.. that's SO much better than mine :-(
> 
> Well done.

  Thanks Andy (and all), but as Hugo said, your is also very well done, and 
has some things better. I also like specially your focal blur, mine is 
somewhat strange and does not seem to follow the camera zoom.

> How did you make the bolts, especially the indentations?

union{
 intersection{
  union{
   cylinder{<0,-.3,0>,<0,.3,0>,.6}
   torus{.6,.3}
  }
  plane{z,.72}
  plane{z,-.72 inverse}
  plane{x,0 rotate 30*y inverse translate -.82*x}
  plane{x,0 rotate -30*y inverse translate -.82*x}
  plane{x,0 rotate 30*y translate .82*x}
  plane{x,0 rotate -30*y translate .82*x}
 }
 height_field{
  png "hf_bolt"
  smooth
  water_level 0.1
  translate -.5
  scale <1.3,.1,1.3>
  translate <0,.27,0>
 }
}

  The height_field is the nice lettering on the top (which of course says 
"POV-RAY"), and is done with The Gimp, puting white letters in circle on 
black background and blurring it a bit.

  There are also some facts about the image I forgot to mention:

  + To get the feeling from Brazil, I used a double CD from Joao Gilberto.

  + The image uses Kari rad settings from the cornell box scene, with the 
count lowered a bit.

  + The focal blur uses Warp recommendation of variance 0.

  + The metal texture uses an averaged normal (only the normal) from 4 
patterns at diferent scales, and a "procedural" image_map "a la Tran".

  + The light is created with my new macro, wich uses basically 
fade_distance 1 fade_power 2 and the light color is multiplied by a very 
high value (about 3600 for this one). 

  + Render time was 7h... !

  I promise to release the light macro this weekend, mainly because I want 
some feedback about all my (surely wrong) assumptions creating it.

  Bye...

-- 
Jaime Vives Piqueres

La Persistencia de la Ignorancia
http://www.ignorancia.org

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