Here's what I used Dennis:

This started with some of Alf Peak's code in his post
"Golden Ratio" to p.t.s-f  31. Aug;
news://news.povray.org/39ad9be0%40news.povray.org

and then Tor's "Fibonacci Stones" image got my attention . . .
news://news.povray.org/39B44A76.2ECBA98A%40online.no

Here's his source:
news://news.povray.org/39B59A50.66F1BAA7%40online.no

I dropped back to using spheres instead of Tor's AntiBlobs
as I'm still trying to finger out how he's doing that ;)

The simplified code for generating a union of spheres and
projecting an image onto it is attached.  A big 2K
Tried to comment it.
You will have to provide yer own pic ;)

**
Y

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Attachments:
Download 'FibBead.pov.txt' (3 KB)

I think I'm in love. I like.

The pics OK as well, maybe a bit dark for me without tweaking the
gamma. Do you realy need assumed_gamma 2.2? Try display_gamma=2.2
whatever to match YOUR monitor, in your povray.ini, then use
display_gamma 1 in your pov file.

I agree on bead size, less than around 5 pixels diameter each is not
so good. Have you tried a single colour per sphere instead of an image
map on the union? Megapov has an easier solution for this than pov3.1

BTW Compuserve has global access, providing there is a node in your
area, and you only need your password. They are now under AOL so I
would guess AOL should have similar facilities? It does allow
news.povray.org

--
Alf

http://www.peake42.freeserve.co.uk/
http://ourworld.compuserve.com/homepages/Alf_Peake/
gw3### [at] thersgbnet


"yooper" <Out### [at] huntelnet> wrote in message
news:3a95751a@news.povray.org...
> here's a small one . . .
> you can at least get the idea.
>
> Y
>
>
>

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. Have you tried a single colour per sphere instead of an image
map on the union? Megapov has an easier solution for this than pov3.1
***
 That's what my original intention was but . . . a bead for each pixel
really limits the size of the photograph that I can use.  Some small ones
would work but even at 400x400 . . . yikes !!!  So I just shot it at the
union and way very pleasently surprised by the result.
  And BTW . . . thanks for that Fib engine . . . way cool . . .

  The darkness was my fault . . . somehow had global finish in it for
this pic . . . fingered it out now and have control over the image
brightness.

Y

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"Alf Peake" <alf### [at] peake42freeservecouk> wrote in message
news:3a9844fe@news.povray.org...
[snip]
> whatever to match YOUR monitor, in your povray.ini, then use
> display_gamma 1 in your pov file.
>
Oops! Use assumed_gamma 1 in your pov file.
Sorry.

Alf

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"Alf Peake" <alf### [at] peake42freeservecouk> wrote in message
news:3a9844fe@news.povray.org...
[snip]
> whatever to match YOUR monitor, in your povray.ini, then use
> display_gamma 1 in your pov file.
>
Oops! Use assumed_gamma 1 in your pov file.
Sorry.

Alf

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In article <3a984907@news.povray.org>, "yooper" <Out### [at] huntelnet> 
wrote:

> . Have you tried a single colour per sphere instead of an image
> map on the union? Megapov has an easier solution for this than pov3.1
> ***
>  That's what my original intention was but . . . a bead for each pixel
> really limits the size of the photograph that I can use.  Some small ones
> would work but even at 400x400 . . . yikes !!!  So I just shot it at the
> union and way very pleasently surprised by the result.

I don't think he meant a bead per pixel, just a single color for each 
bead. In MegaPOV, you could use the eval_pigment() patch to get the 
color of the image_map at the center of each bead. With the official 
version, you would have to either code a program to get the needed 
information, or just translate the texture so the portion at the bead 
position is at < 0, 0, 0>, scale it large enough that you can't see any 
color blend across it, then translate it to the bead position.

object {Bead
    texture {ImageTexture
        translate -BeadPosition
        scale 100// this should be big enough...
    }
    translate BeadPosition
}

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

<><

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Hi Bob H., you recently wrote in povray.binaries.images:

> I've looked up the possibility of a ISP with a 1-800 phone number to forego
> the need for local calls from anyplace but found none.
I use attglobal.net when I travel. They have local dial-in nodes
almost everywhere in the world, plus they have a 1-800 number.

- Lutz
  email : lut### [at] stmuccom
  Web   : http://www.stmuc.com/moray

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Alf says:
Use assumed_gamma 1 in your pov file
and:
Use assumed_gamma 1 in your pov file
***
ok . . .ok . . . i get it :) hehe
or ... are you telling me to use it twice . . .?

Y

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I don't think he meant a bead per pixel, just a single color for each
bead. In MegaPOV, you could use the eval_pigment() patch to get the
color of the image_map at the center of each bead.
***

I see . . . just seems like that would be similar to 'posterizing' a pic . .
.
with a loss of definition. But I will give it a try and see what it looks
like . . .
**
Y

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Try display_gamma=2.2 or whatever to match YOUR monitor,
in your povray.ini, then use assumed_gamma 1 in your pov file.

***
   OK . . . I've read everything I can find on this and I understand
why these commands are used.  However, I cannot find the
dislplay_gamma setting anywhere and I have no clue as to what
I have to do to set it.  I don't know what I'm doing in these ini files
jand I've never used the command line so I'm not gonna muck around
in there and screw something up.
   Something has to be changed tho . . . if  I use assumed_gamma
of 1.0 . . . my rendered displays look horrible.
   How do I go about this ?  And understand . . . I don't have a
clue here . . . it's only easy if you know how and I don't  ;)
The Help files explain very well why . . . but assume (wrongly)
that I know how to do it.

TIA
**
Y

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