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"clipka" <nomail@nomail> wrote in message
news:web.49ec4ea6b39f4461a1b9caf0@news.povray.org...
> Warp <war### [at] tag povrayorg> wrote:
>> Are you sure the pattern is not named after the clown?
>
> No, I'm definitely not sure the pattern isn't named after bozo the clown.
> But
> are you sure it is? Do you have any substantial hints that it is so?
I was imagining Bozo the Clown as having fuzzy hair in the shape of a
horseshoe around his head, been a very long time since I had seen him so
that was a glimpse back through time seeing the wiki article.
When using the pigment without any extras (no turbulence, scale,
transformations) on a unit-sized sphere, half white and half orange, the
appearance is what I expected to be like Bozo before seeing the picture of
him. Adding a red nose helps visualize that. This is the view from a camera
at -3*z:
http://0mniverse.com/povray/bozopatternclown.jpg
I guess David Buck must know the real answer, but I can't remember if it was
in DKB-Trace prior to POV-Ray Trace. Sure seems like it might have been the
clown-hair fluff look of it that got it this name, but everyone probably
mixed that up (like me) thinking it was about the hair and not some other
attribute (if any, such as "silly" as was already mentioned).
Bob
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Bob escreveu:
> I guess David Buck must know the real answer, but I can't remember if it
> was in DKB-Trace prior to POV-Ray Trace. Sure seems like it might have
> been the clown-hair fluff look of it that got it this name, but everyone
> probably mixed that up (like me) thinking it was about the hair and not
> some other attribute (if any, such as "silly" as was already mentioned).
Must be an internal joke. But somehow, I always felt it to be linked to
a blue sky with white clouds. Perhaps someone misspelled clown? :P
--
a game sig: http://tinyurl.com/d3rxz9
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Bob wrote:
> I guess David Buck must know the real answer, but I can't remember if it
> was in DKB-Trace prior to POV-Ray Trace. Sure seems like it might have
> been the clown-hair fluff look of it that got it this name, but everyone
> probably mixed that up (like me) thinking it was about the hair and not
> some other attribute (if any, such as "silly" as was already mentioned).
>
> Bob
It's lucky that I still monitor this group :-)
Bozo was indeed in DKBTrace. In fact, it was one of the first
procedural textures to be implemented in DKBTrace. I wasn't, however,
responsible for the name. It came from a technical paper presented at
SIGGRAPH '84 by Ken Perlin called "An Image Synthesizer". He showed a
torus with a bozo texture on it.
That paper served as a huge inspiration for me to create the original
textures in DKBTrace and later POVRay.
http://portal.acm.org/citation.cfm?id=325247
http://luthuli.cs.uiuc.edu/~daf/courses/ComputerGraphics/Week8/Shading.pdf
David Buck
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David Buck <dav### [at] simberoncom> wrote:
> Bozo was indeed in DKBTrace. In fact, it was one of the first
> procedural textures to be implemented in DKBTrace. I wasn't, however,
> responsible for the name. It came from a technical paper presented at
> SIGGRAPH '84 by Ken Perlin called "An Image Synthesizer". He showed a
> torus with a bozo texture on it.
Yes, that colorful donut plausibly explains that name; going from there to the
clown is just a small step:)
> That paper served as a huge inspiration for me to create the original
> textures in DKBTrace and later POVRay.
>
> http://portal.acm.org/citation.cfm?id=325247
It seems like the paper isn't available for free (or did anyone find a free
source?); but here's a presentation slideshow on it:
http://www.csee.umbc.edu/~olano/635s07/PSE.pdf
Thanks David for shedding light on this one (and for creating the roots of
POV-Ray, by the way :))
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David Buck escreveu:
> Bozo was indeed in DKBTrace. In fact, it was one of the first
> procedural textures to be implemented in DKBTrace. I wasn't, however,
> responsible for the name. It came from a technical paper presented at
> SIGGRAPH '84 by Ken Perlin called "An Image Synthesizer". He showed a
> torus with a bozo texture on it.
>
> That paper served as a huge inspiration for me to create the original
> textures in DKBTrace and later POVRay.
>
> http://portal.acm.org/citation.cfm?id=325247
> http://luthuli.cs.uiuc.edu/~daf/courses/ComputerGraphics/Week8/Shading.pdf
Those old-time researchers surely had about as much sense of humor as
open-source developers. ;) Today it's all enterprisey, long-named and
no-fun in a suit...
--
a game sig: http://tinyurl.com/d3rxz9
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"David Buck" <dav### [at] simberoncom> schreef in bericht
news:49efbe17$1@news.povray.org...
> It's lucky that I still monitor this group :-)
>
> Bozo was indeed in DKBTrace. In fact, it was one of the first procedural
> textures to be implemented in DKBTrace. I wasn't, however, responsible
> for the name. It came from a technical paper presented at SIGGRAPH '84 by
> Ken Perlin called "An Image Synthesizer". He showed a torus with a bozo
> texture on it.
>
> That paper served as a huge inspiration for me to create the original
> textures in DKBTrace and later POVRay.
>
> http://portal.acm.org/citation.cfm?id=325247
> http://luthuli.cs.uiuc.edu/~daf/courses/ComputerGraphics/Week8/Shading.pdf
>
Nice, David. This little piece of info should go into some kind of
Historical Repository for POV-Ray, under the chapter "Foundations & Sources"
:-)
Thomas
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Thomas de Groot wrote:
> "David Buck" <dav### [at] simberoncom> schreef in bericht
> news:49efbe17$1@news.povray.org...
>> It's lucky that I still monitor this group :-)
>>
>> Bozo was indeed in DKBTrace. In fact, it was one of the first procedural
>> textures to be implemented in DKBTrace. I wasn't, however, responsible
>> for the name. It came from a technical paper presented at SIGGRAPH '84 by
>> Ken Perlin called "An Image Synthesizer". He showed a torus with a bozo
>> texture on it.
>>
>> That paper served as a huge inspiration for me to create the original
>> textures in DKBTrace and later POVRay.
>>
>> http://portal.acm.org/citation.cfm?id=325247
>> http://luthuli.cs.uiuc.edu/~daf/courses/ComputerGraphics/Week8/Shading.pdf
>>
>
> Nice, David. This little piece of info should go into some kind of
> Historical Repository for POV-Ray, under the chapter "Foundations & Sources"
> :-)
>
> Thomas
>
>
I'm not disagreeing, but this is only one small, almost insignificant
piece in the development of POVRay. It would seem out of place if it
was the only little tidbit there.
If I thought there was a market for it, I could write a book on the
origins of DKBTrace and POVRay to cover little things like that. For
example,
- the original inspiration for DKBTrace
- using calculus for quadric surfaces
- the pesky black speckle problem
- the pain of CSG
- solid textures and where they came from
- refraction and how to get it wrong
- calming down the waves pattern
- layered textures
- building the roman towers
- early images
- introducing spheres
- Phong specular highlights
- the transition from DKBTrace to POVRay
- early work on POVRay
- version control tools - ZIP, ZModem and 2400 baud modems
- POVRay 1.0 at SIGGRAPH '92
Maybe I'll toss around the idea. I already have a science fiction book
I've submitted to a publisher. This could be a fun book to write.
Would there be interest in a book like this?
David Buck
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David Buck wrote:
...
> Maybe I'll toss around the idea. I already have a science fiction book
> I've submitted to a publisher. This could be a fun book to write. Would
> there be interest in a book like this?
>
> David Buck
Absolutely!!!
-=- Larry -=-
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Larry Hudson wrote:
> David Buck wrote:
> ...
>> Maybe I'll toss around the idea. I already have a science fiction
>> book I've submitted to a publisher. This could be a fun book to
>> write. Would there be interest in a book like this?
>>
>> David Buck
>
> Absolutely!!!
>
> -=- Larry -=-
Yes, you can count on all of us 9 regulars of the pov newsgroups. ;)
I know I met povray through a book by Dan Farmer and others... :)
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nemesis wrote:
> Larry Hudson wrote:
>> David Buck wrote:
>> ...
>>> Maybe I'll toss around the idea. I already have a science fiction
>>> book I've submitted to a publisher. This could be a fun book to
>>> write. Would there be interest in a book like this?
>>>
>>> David Buck
>>
>> Absolutely!!!
>>
>> -=- Larry -=-
>
> Yes, you can count on all of us 9 regulars of the pov newsgroups. ;)
>
> I know I met povray through a book by Dan Farmer and others... :)
Excellent. I think 9 should be enough to convince any publisher :-)
I'm feeling more and more that there's an interesting story to be told
about DKBTrace/POVRay that I'm the only person in a position to tell.
Others can talk about POVRay and what it does but I'm the only one who
knows where the ideas came from and how it all came to be. My wife is
encouraging me to pursue the idea. I think I'll do some basic research
and see if it makes sense to propose it to a publisher.
Thanks
David Buck
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