In a reply to a letter i got on the general group a brilliant idea came
to mind ...
i replied something to the affect of putting my two cents in... and well
...
i am half way there ... ( the easy half )
I'm afraid ol` Lincoln and his monument are going to be quite a task and
any help would be most graciously appreciated and most wonderful...
thanks...
  ------------------------------------------------------------------------

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Attachments:
Download 'penny.jpg' (14 KB)

Preview of image 'penny.jpg'

Seeing that horrid image posted by Simon yesterday got me thinking..
Back at elementary school we used to xerox our faces, producing fine art
with a very characteristic look. Now, if that light had a somewhat
linear falloff, you'd get a pretty good hf of your face.

With Lincoln you better borrow a bust from your local museum, cause I
doubt the coins have adequate embossing to produce this effect.

sig.

ryan mooney wrote:
> 
> In a reply to a letter i got on the general group a brilliant idea came
> to mind ...
> i replied something to the affect of putting my two cents in... and well
> ...
> i am half way there ... ( the easy half )
> I'm afraid ol` Lincoln and his monument are going to be quite a task and
> any help would be most graciously appreciated and most wonderful...
> thanks...
>   ------------------------------------------------------------------------
> 
>   ------------------------------------------------------------------------
>  [Image]

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On Sun, 09 Jan 2000 13:05:25 +0100, in message
<38787985.B9E78B4E@stud.ntnu.no>, Sigmund Kyrre Aas <as### [at] studntnuno>
wrote:

>With Lincoln you better borrow a bust from your local museum, cause I
>doubt the coins have adequate embossing to produce this effect.

  At one time I found some coin collecting sites on the Web and they had
adequate images of many coins and denominations. I was able to create a
bump map coin and one could make out the face but the lettering was
barely readable.

-- 
Alan
ako### [at] povrayorg
a k o n g <at> p o v r a y <dot> o r g

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Alan Kong wrote:
> 
> On Sun, 09 Jan 2000 13:05:25 +0100, in message
> <38787985.B9E78B4E@stud.ntnu.no>, Sigmund Kyrre Aas <as### [at] studntnuno>
> wrote:
> 
> >With Lincoln you better borrow a bust from your local museum, cause I
> >doubt the coins have adequate embossing to produce this effect.
> 
>   At one time I found some coin collecting sites on the Web and they had
> adequate images of many coins and denominations. I was able to create a
> bump map coin and one could make out the face but the lettering was
> barely readable.

The US Mint has some good online images that I have used for making coins
with using bump maps.

-- 
Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

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Thank You, Could Send/Post Me Some Examples ( Bump Map Is Not Something I
Am Proficient At Yet) The Coin Site Would Be Nice Too I f You Can
Remember.. Oh Well Guess I Will Keep Searching...

Alan Kong wrote:

> On Sun, 09 Jan 2000 13:05:25 +0100, in message
> <38787985.B9E78B4E@stud.ntnu.no>, Sigmund Kyrre Aas <as### [at] studntnuno>
> wrote:
>
> >With Lincoln you better borrow a bust from your local museum, cause I
> >doubt the coins have adequate embossing to produce this effect.
>
>   At one time I found some coin collecting sites on the Web and they had
> adequate images of many coins and denominations. I was able to create a
> bump map coin and one could make out the face but the lettering was
> barely readable.
>
> --
> Alan
> ako### [at] povrayorg
> a k o n g <at> p o v r a y <dot> o r g

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I tried a prism but this is not near the detail i want but it looks good for
now...
  ------------------------------------------------------------------------

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Attachments:
Download 'penny.jpg' (15 KB)

Preview of image 'penny.jpg'

I think the "D" is too big, but I'm not sure.

--
Homepage: http://www.faricy.net/~davidf/
___     ______________________________
 | \     |_       <dav### [at] faricynet>
 |_/avid |ontaine      <ICQ 55354965>

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Good eye... Yes it is, i just realized that a few minutes after my
second post...

David Fontaine wrote:

> I think the "D" is too big, but I'm not sure.
>
> --
> Homepage: http://www.faricy.net/~davidf/
> ___     ______________________________
>  | \     |_       <dav### [at] faricynet>
>  |_/avid |ontaine      <ICQ 55354965>

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http://www.rauscountrystore.com/coin2.htm
No mention of a copyright on this pages penny photos but might be implied anyway
so not sure of it's public usability (wheat ear reverse too).
Another front side only is at: http://members.aol.com/RVSNorton/Lincoln14.html
Best example maybe, with memorial:
http://www.pennies.org/history/images/1997lrg.jpg
Though I can't imagine you could bump map any penny picture too well since the
lighting on them never corresponds to the actual surface heights.

Bob

"ryan mooney" <rdm### [at] earthlinknet> wrote in message
news:38770D1D.A3A7579C@earthlink.net...
> In a reply to a letter i got on the general group a brilliant idea came
> to mind ...
> i replied something to the affect of putting my two cents in... and well
> ...
> i am half way there ... ( the easy half )
> I'm afraid ol` Lincoln and his monument are going to be quite a task and
> any help would be most graciously appreciated and most wonderful...
> thanks...
>   ------------------------------------------------------------------------
>


--------------------------------------------------------------------------------

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Thanks for the links... i guess almost anything is worth a try although i think
i'll try to put the bumb_map atop my prism...?...

omnivores wrote:

> http://www.rauscountrystore.com/coin2.htm
> No mention of a copyright on this pages penny photos but might be implied anyway
> so not sure of it's public usability (wheat ear reverse too).
> Another front side only is at: http://members.aol.com/RVSNorton/Lincoln14.html
> Best example maybe, with memorial:
> http://www.pennies.org/history/images/1997lrg.jpg
> Though I can't imagine you could bump map any penny picture too well since the
> lighting on them never corresponds to the actual surface heights.
>
> Bob
>
> "ryan mooney" <rdm### [at] earthlinknet> wrote in message
> news:38770D1D.A3A7579C@earthlink.net...
> > In a reply to a letter i got on the general group a brilliant idea came
> > to mind ...
> > i replied something to the affect of putting my two cents in... and well
> > ...
> > i am half way there ... ( the easy half )
> > I'm afraid ol` Lincoln and his monument are going to be quite a task and
> > any help would be most graciously appreciated and most wonderful...
> > thanks...
> >   ------------------------------------------------------------------------
> >
>
> --------------------------------------------------------------------------------

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IMHO I would use a slightly different font if you have one.

--
Homepage: http://www.faricy.net/~davidf/
___     ______________________________
 | \     |_       <dav### [at] faricynet>
 |_/avid |ontaine      <ICQ 55354965>

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I don't i wish i did i found a great one on my system, but when i tried
the ttf.converter the only one i wanted did not convert... :( Plus my
system started making glitch screeches so i threw them all away...

What is IMHO ,,,
??
 ~

David Fontaine wrote:

> IMHO I would use a slightly different font if you have one.
>
> --
> Homepage: http://www.faricy.net/~davidf/
> ___     ______________________________
>  | \     |_       <dav### [at] faricynet>
>  |_/avid |ontaine      <ICQ 55354965>

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ryan mooney wrote:

> What is IMHO ,,,

In My Humble Opinion ,,,

-- 
Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

Post a reply to this message

Ken wrote:

> ryan mooney wrote:
>
> > What is IMHO ,,,
>
> In My Humble Opinion ,,,
>
> --
> Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
> http://home.pacbell.net/tylereng/index.htmlhttp://www.povray.org/links/

What?? Ken gave no link??? I am shocked and dismayed.


In general: http://foldoc.doc.ic.ac.uk/foldoc/index.html

for "IMHO":   http://foldoc.doc.ic.ac.uk/foldoc/foldoc.cgi?query=IMHO

and for a mirrored list of mirrors (just in case)

http://nightflight.com/foldoc/mirrors.html - USA
http://www.nue.org/foldoc/mirrors.html - Japan
http://www.easynet.de/resources/foldoc/mirrors.html - Germany
http://www-lli.univ-paris13.fr/foldoc/mirrors.html - France


--
"My new computer's got the clocks, it rocks
But it was obsolete before I opened the box" - W.A.Y.

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On Sun, 09 Jan 2000 14:25:45 -0600, David Fontaine wrote:
>I think the "D" is too big, but I'm not sure.

On my sample penny here the D is also in a serif font, and the 9 
is not closed and has a descender.

-- 
These are my opinions.  I do NOT speak for the POV-Team.
The superpatch: http://www2.fwi.com/~parkerr/superpatch/
My other stuff: http://www2.fwi.com/~parkerr/traces.html

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Eha...? Penny sample...? where???
Yea i know the font work is basic until i can get more ttf.'s...
I am more concerned w/ the Lincoln bust and Memorial for now i am using
a prism for both but this i not the look i want...
( using basic cyrvetic for now )

Ron Parker wrote:

> On Sun, 09 Jan 2000 14:25:45 -0600, David Fontaine wrote:
> >I think the "D" is too big, but I'm not sure.
>
> On my sample penny here the D is also in a serif font, and the 9
> is not closed and has a descender.
>
> --
> These are my opinions.  I do NOT speak for the POV-Team.
> The superpatch: http://www2.fwi.com/~parkerr/superpatch/
> My other stuff: http://www2.fwi.com/~parkerr/traces.html

Post a reply to this message

Thanks A Link To Some Good ttf.'s Would be helpful if you please...

Ken wrote:

> ryan mooney wrote:
>
> > What is IMHO ,,,
>
> In My Humble Opinion ,,,
>
> --
> Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
> http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

Post a reply to this message

ryan mooney wrote:
> 
> Thanks A Link To Some Good ttf.'s Would be helpful if you please...

Below in the attached images you will see a cooper penny (front only)
that I raytraced about a year ago and the grey scale I used to bump
map the face. I never worked on the reverse side of the penny and the
grayscale I am providing certainly lacks in resolution. It will however
give you something to think about...

For ttf resources follow this link -

http://www.povray.org/links/3D_Programs/Fonts_and_Font_Utilities/Fonts/

-- 
Ken Tyler -  1300+ Povray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

Post a reply to this message

Attachments:
Download 'penny.jpg' (7 KB) Download 'pen3-a.jpg' (17 KB)

Preview of image 'penny.jpg'

Preview of image 'pen3-a.jpg'

On Sun, 09 Jan 2000 21:42:28 -0700, ryan mooney wrote:
>Eha...? Penny sample...? where???

In my pocket.  :)

>I am more concerned w/ the Lincoln bust and Memorial for now i am using
>a prism for both but this i not the look i want...

I find it interesting that every image processing program I've ever seen
has a filter to differentiate the image along a direction (usually called
"emboss") but none seem to be able to do the inverse operation; that is, 
integrate the image along a direction.  If you could, you could then take
a carefully-controlled photograph of a penny (might need to paint it flat 
white first, to remove the specular highlights) and use the integrate 
feature to recover the contours.

-- 
These are my opinions.  I do NOT speak for the POV-Team.
The superpatch: http://www2.fwi.com/~parkerr/superpatch/
My other stuff: http://www2.fwi.com/~parkerr/traces.html

Post a reply to this message

ryan mooney wrote:

> Thank You, Could Send/Post Me Some Examples ( Bump Map Is Not Something I
> Am Proficient At Yet) The Coin Site Would Be Nice Too I f You Can
> Remember.. Oh Well Guess I Will Keep Searching...

    You can also use and image map. This is code is from early in my POV
experience. There must certainly be better ways to do this.

#declare coin =  union
{
intersection
  {
   height_field {
    gif "coin2b.gif"
    smooth
    texture {cyltex2} // pigment {color <1,0.7,0>}
    translate <-.5, -.5, -.50>
    scale <1, 0.0275, 1>
         } // end height_field
   cylinder { <0,-.0137,0> <0,0.2,0> 1 translate <0,0.0,0> }
  }
 cylinder { <0,-.0137,0> <0,-0.1,0> 0.42 translate <0,0,0.01>
   texture  {cyltex2}}//color <1,0.7,0>} }
rotate <0,45,0>
translate <xloc, 1.604, zloc>
}
coin

http://giwersworld.org/artii/giants5a.jpg for the result.

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Ron Parker wrote:

> I find it interesting that every image processing program I've ever seen
> has a filter to differentiate the image along a direction (usually called
> "emboss") but none seem to be able to do the inverse operation; that is,
> integrate the image along a direction.  If you could, you could then take
> a carefully-controlled photograph of a penny (might need to paint it flat
> white first, to remove the specular highlights) and use the integrate
> feature to recover the contours.

    Or just put a penny on a scanner.

    As to and inverse operation, I don't see what you mean. But there is
always a separate inverse function, the photonegative.

    And there is also almost always the "stamp" filter instead of emboss
which often works much better for things where emboss appears to be the right
thing but doesn't work. And with stamp you should get control of edge depth
and direction.

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On Wed, 12 Jan 2000 22:46:35 -0500, Matt Giwer wrote:
>    Or just put a penny on a scanner.

That doesn't give you a depthmap, and it doesn't give you something you 
could integrate to get a depthmap (the light is coming from in front, so
there are no shadows.)

>    As to and inverse operation, I don't see what you mean. But there is
>always a separate inverse function, the photonegative.

I mean inverse in the mathematical sense, as in "the operation you'd perform
to undo the emboss operation."

>    And there is also almost always the "stamp" filter instead of emboss
>which often works much better for things where emboss appears to be the right
>thing but doesn't work. And with stamp you should get control of edge depth
>and direction.

But it does the same basic operation as emboss, which is differentiation.
I want a filter that integrates.

I could of course write one that works on PPM files, which would be good 
enough for my purposes.  Maybe when I have more free time... (like that'll
ever happen)

-- 
These are my opinions.  I do NOT speak for the POV-Team.
The superpatch: http://www2.fwi.com/~parkerr/superpatch/
My other stuff: http://www2.fwi.com/~parkerr/traces.html

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I think i tried that but i will try it again...
Was not happy w/ image result from HF...
Maybe i did something incorrectly...?

Matt Giwer wrote:

> ryan mooney wrote:
>
> > Thank You, Could Send/Post Me Some Examples ( Bump Map Is Not Something I
> > Am Proficient At Yet) The Coin Site Would Be Nice Too I f You Can
> > Remember.. Oh Well Guess I Will Keep Searching...
>
>     You can also use and image map. This is code is from early in my POV
> experience. There must certainly be better ways to do this.
>
> #declare coin =  union
> {
> intersection
>   {
>    height_field {
>     gif "coin2b.gif"
>     smooth
>     texture {cyltex2} // pigment {color <1,0.7,0>}
>     translate <-.5, -.5, -.50>
>     scale <1, 0.0275, 1>
>          } // end height_field
>    cylinder { <0,-.0137,0> <0,0.2,0> 1 translate <0,0.0,0> }
>   }
>  cylinder { <0,-.0137,0> <0,-0.1,0> 0.42 translate <0,0,0.01>
>    texture  {cyltex2}}//color <1,0.7,0>} }
> rotate <0,45,0>
> translate <xloc, 1.604, zloc>
> }
> coin
>
> http://giwersworld.org/artii/giants5a.jpg for the result.

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ryan mooney wrote:

    In development the problem I ran into was getting the .gif right. I had to
revise it several times, note the 2b. Everything but what I wanted "raised" had
to be exactly the same black pixels. Almost was not good enough. Anything else
had bumps in all the wrong places. Doing it today, I would not use .gif as there
is are too few intensities for smooth transitions.


> I think i tried that but i will try it again...
> Was not happy w/ image result from HF...
> Maybe i did something incorrectly...?
>
> Matt Giwer wrote:
>
> > ryan mooney wrote:
> >
> > > Thank You, Could Send/Post Me Some Examples ( Bump Map Is Not Something I
> > > Am Proficient At Yet) The Coin Site Would Be Nice Too I f You Can
> > > Remember.. Oh Well Guess I Will Keep Searching...
> >
> >     You can also use and image map. This is code is from early in my POV
> > experience. There must certainly be better ways to do this.
> >
> > #declare coin =  union
> > {
> > intersection
> >   {
> >    height_field {
> >     gif "coin2b.gif"
> >     smooth
> >     texture {cyltex2} // pigment {color <1,0.7,0>}
> >     translate <-.5, -.5, -.50>
> >     scale <1, 0.0275, 1>
> >          } // end height_field
> >    cylinder { <0,-.0137,0> <0,0.2,0> 1 translate <0,0.0,0> }
> >   }
> >  cylinder { <0,-.0137,0> <0,-0.1,0> 0.42 translate <0,0,0.01>
> >    texture  {cyltex2}}//color <1,0.7,0>} }
> > rotate <0,45,0>
> > translate <xloc, 1.604, zloc>
> > }
> > coin
> >
> > http://giwersworld.org/artii/giants5a.jpg for the result.

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