I have recieved requests for my notes on making 3D objects from 2D
 images using height fields. I'll be posting the training package in
 povray.binaries.tutorials. The zip file is a bit less than 500k because
 it contains example images plus the written text to try to make the
 process as clear as possible. I had to convert the .tga files that were
 in the package I sent ot Jim Kress because it was just too large to post
 here on the news group. Anyway the material posted in the tutorials groups
 shows how to make the leafs shown in this image using the HF object. It
 was an easy image example and if you can make a simple leaf like these
 you can easily graduate to bigger things like your mothers face, horses,
 or even statues of naked women/men.

-- 
Ken Tyler

mailto://tylereng@pacbell.net

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'T was on Fri, 05 Mar 1999 04:58:49 -0800,
that Ken wrote:
> I have recieved requests for my notes on making 3D objects from 2D
>  images using height fields. I'll be posting the training package in
>  povray.binaries.tutorials.

Funny. Now that I look at the image on your post, I realised I've been 
using a similar technique for quite some time now. The logo of my 
homepage is a heightfield, and so is the logo I designed for MilieuTotaal 
( http://www.milieutotaal.nl ).

Funny, that.

Phoenix

-- 
eag### [at] telekabelnl                       http://users.telekabel.nl/eagle
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Yep, not to give anyone ideas, but this method works great for making surf
around land masses.

GrimDude
vos### [at] arkansasnet

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GrimDude wrote:
> 
> Yep, not to give anyone ideas, but this method works great for making surf
> around land masses.
> 
> GrimDude
> vos### [at] arkansasnet

 A well designed gradient grey scale pigment on a plane makes a great
image for a HF to be used as lap siding on a house.

 A cross hatch pattern in black and white can make some very intricate
lattice grill work for a variety of designer and interior/exterior
appliactions.

 I have also used those weird fonts called wingdings (?) that have
symbols of objects like phone booths, telephones, etc. as text in an
image and then use the image as a HF and instant objects in that shape.

 Small rough HF's make realistic looking mold and moss for trees and
also are good for very rough patches of rust on metal.

 A piece of swiss cheese can easily be modeled with a HF object by
making random sized black dots on a white background.

 HF's make great roads and can be created using a striped gradient on
a plane for the image. Strips can be added later with flattened boxes.

 Animations of ripples on a pond can very easily be made using multiple
HF images. The same is true for advancing swells on a lakes surface.

 A lawn with grass can be simulated using a high percentage white noise
function on a black bacground as a HF object.

 Very rough bark, or not so rough bark, for a tree can easily be made
using a HF object.

 Furniture can be simulated by using a HF object.

 There are so many more possibilities I could go on for hours :)




-- 
Ken Tyler

mailto://tylereng@pacbell.net

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That is wild, a bit of Escherism in that too it seems.


Ken wrote:
> 
> I have recieved requests for my notes on making 3D objects from 2D
>  images using height fields. I'll be posting the training package in
>  povray.binaries.tutorials. The zip file is a bit less than 500k because
>  it contains example images plus the written text to try to make the
>  process as clear as possible. I had to convert the .tga files that were
>  in the package I sent ot Jim Kress because it was just too large to post
>  here on the news group. Anyway the material posted in the tutorials groups
>  shows how to make the leafs shown in this image using the HF object. It
>  was an easy image example and if you can make a simple leaf like these
>  you can easily graduate to bigger things like your mothers face, horses,
>  or even statues of naked women/men.
> 
> --
> Ken Tyler
> 
> mailto://tylereng@pacbell.net
> 
>   ------------------------------------------------------------------------
>  [Image]

-- 
 omniVERSE: beyond the universe
  http://members.aol.com/inversez/POVring.htm
 mailto:inv### [at] aolcom?PoV

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'T was on Sat, 06 Mar 1999 02:34:37 -0800,
that Ken wrote:
>  Animations of ripples on a pond can very easily be made using multiple
> HF images. The same is true for advancing swells on a lakes surface.

Can you use a matrix on a HF? You could skew a height field to make a(n 
almost) crashing wave. Surfs up!

Phoenix

-- 
eag### [at] telekabelnl                       http://users.telekabel.nl/eagle
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Ken,  the problem is if I worked on every idea I had, I'd never get a single
concept done. I once spent a week on a piano, then a week on a doorknob,
then another week on bowling pins,...

Nowadays I'm up to a month per scene. Sometimes I wish I had several
computers, but my efforts have been falling short of my goals anyway. (SIGH)

GrimDude
vos### [at] arkansasnet

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Great idea there. A 'matrix' should work on anything, just somewhat
tough to get one adjusted right if you ask me.


Phoenix wrote:
> 
> 'T was on Sat, 06 Mar 1999 02:34:37 -0800,
> that Ken wrote:
> >  Animations of ripples on a pond can very easily be made using multiple
> > HF images. The same is true for advancing swells on a lakes surface.
> 
> Can you use a matrix on a HF? You could skew a height field to make a(n
> almost) crashing wave. Surfs up!
> 
> Phoenix
> 
> --
> eag### [at] telekabelnl                       http://users.telekabel.nl/eagle
> ------------------------------------------------------------------------
> The POV-Ray VFAQ: http://iki.fi/warp/povVFAQ.html

-- 
 omniVERSE: beyond the universe
  http://members.aol.com/inversez/POVring.htm
 mailto:inv### [at] aolcom?PoV

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