POV-Ray : Newsgroups : povray.binaries.images : Random placement Server Time
6 Aug 2024 19:29:03 EDT (-0400)
  Random placement (Message 1 to 10 of 10)  
From: Bill Pragnell
Subject: Random placement
Date: 15 Nov 2006 06:35:00
Message: <web.455afaf7f182180e731f01d10@news.povray.org>
Just a bit of a doodle while I experiment with collision detection during
random placement. Works quite well, but obviously filling the surface more
completely takes ages... I need to make it a little more efficient.

Bill


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From: Sven Littkowski
Subject: Re: Random placement
Date: 15 Nov 2006 09:06:31
Message: <455b1ee7@news.povray.org>
Not bad. Will you post your anti-collision code later?

Sven





"Bill Pragnell" <bil### [at] hotmailcom> schrieb im Newsbeitrag 
news:web.455afaf7f182180e731f01d10@news.povray.org...
> Just a bit of a doodle while I experiment with collision detection during
> random placement. Works quite well, but obviously filling the surface more
> completely takes ages... I need to make it a little more efficient.
>
> Bill
>


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From: George Pantazopoulos
Subject: Re: Random placement
Date: 15 Nov 2006 10:55:00
Message: <web.455b375d17d9b1b2c0bad8570@news.povray.org>
"Bill Pragnell" <bil### [at] hotmailcom> wrote:
> Just a bit of a doodle while I experiment with collision detection during
> random placement. Works quite well, but obviously filling the surface more
> completely takes ages... I need to make it a little more efficient.
>
> Bill

Very cool. Reminds of fighting Andross, the final boss in Starfox on the
SNES :-D

George
http://www.gammaburst.net


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From: nemesis
Subject: Re: Random placement
Date: 15 Nov 2006 18:10:00
Message: <web.455b9d3417d9b1b22e704a1e0@news.povray.org>
"George Pantazopoulos" <go### [at] tomyaboutpage> wrote:
> Very cool. Reminds of fighting Andross, the final boss in Starfox on the
> SNES :-D

except of course for no lighting like this and for just a few dozens of
polygons instead of all of these mathematically perfect superellipsoid
surfaces. :)


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From: Bill Pragnell
Subject: Re: Random placement
Date: 16 Nov 2006 04:55:00
Message: <web.455c34a517d9b1b2731f01d10@news.povray.org>
"nemesis" <nam### [at] gmailcom> wrote:
> "George Pantazopoulos" <go### [at] tomyaboutpage> wrote:
> > Very cool. Reminds of fighting Andross, the final boss in Starfox on the
> > SNES :-D
>
> except of course for no lighting like this and for just a few dozens of
> polygons instead of all of these mathematically perfect superellipsoid
> surfaces. :)

Huh. Never got to the end of that game. But then, it wasn't my SNES. Good
game though... :)

<pedantry> PS they're not superellipsoids </pedantry>


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From: Bill Pragnell
Subject: Re: Random placement
Date: 16 Nov 2006 04:55:01
Message: <web.455c355d17d9b1b2731f01d10@news.povray.org>
"Sven Littkowski" <sve### [at] jamaica-focuscom> wrote:
> Not bad. Will you post your anti-collision code later?

Yes, I can do. I want to work on it a bit more first though, it's probably
not terribly efficient yet! :-D

Bill


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From: dlm
Subject: Re: Random placement
Date: 16 Nov 2006 15:24:44
Message: <455cc90c$1@news.povray.org>
Bill,
That's just what I had in mind for a much earlier greeble thread.
If you can do that you have what it takes to simulate a cell surface.
I look forward to the collision detection. Will it work with arbirary 
geometries?
Good stuff!
DLM

"Bill Pragnell" <bil### [at] hotmailcom> wrote in message 
news:web.455afaf7f182180e731f01d10@news.povray.org...
> Just a bit of a doodle while I experiment with collision detection during
> random placement. Works quite well, but obviously filling the surface more
> completely takes ages... I need to make it a little more efficient.
>
> Bill
>


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From: Kenneth
Subject: Re: Random placement
Date: 16 Nov 2006 15:55:00
Message: <web.455ccf7b17d9b1b2bedbafa10@news.povray.org>
"Bill Pragnell" <bil### [at] hotmailcom> wrote:
> Just a bit of a doodle while I experiment with collision detection during
> random placement. Works quite well, but obviously filling the surface more
> completely takes ages... I need to make it a little more efficient.
>
> Bill

Very cool.  I see the makings of a "planetoid covered with buildings" image.
 I like the *power* this image conveys, with those energetic lighting
effects.

An object like this would make a good executive desk thingy, IMHO.  You
could probably sell a million of 'em! It would be a constant reminder and
reinforcement to CEOs that they "control the world." ;-p

Ken


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From: Bill Pragnell
Subject: Re: Random placement
Date: 16 Nov 2006 19:15:00
Message: <web.455cfe1417d9b1b2113e81f30@news.povray.org>
"dlm" <me### [at] addressinvalid> wrote:
> That's just what I had in mind for a much earlier greeble thread.
> If you can do that you have what it takes to simulate a cell surface.
That did occur to me actually, although I had very different plans for this
originally. I'll tidy it up and see how fast I can get it. Then you can do
with it what you will!

> I look forward to the collision detection. Will it work with arbirary
> geometries?
That was my intention. It works with trace(), in all directions from a point
at the moment (test object here is a sphere), but it should be easy to adapt
it to different arrangements. Orientation of bits is based on local test
object surface normal, so wahey. It's not terribly clever; basically I'm
storing bit size and location in arrays as I go along and testing against
each previous bit to either create randomly sized bits or fill a gap
between bits. Can get time-consuming. However, for greebling polygonal
surfaces it could be pretty quick.

> Good stuff!
I thankyou.

BIll


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From: Bill Pragnell
Subject: Re: Random placement
Date: 16 Nov 2006 19:20:01
Message: <web.455cff0c17d9b1b2113e81f30@news.povray.org>
"Kenneth" <kdw### [at] earthlinknet> wrote:
> Very cool.  I see the makings of a "planetoid covered with buildings" image.
>  I like the *power* this image conveys, with those energetic lighting
> effects.
Not very difficult, actually. Only the third or fourth attempt, I believe,
and it only took 30 minutes to render (just over 1 min of which parsing).

> An object like this would make a good executive desk thingy, IMHO.  You
> could probably sell a million of 'em!
Yeah, but it would probably burn a hole in their desks! :-D

Bill


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