POV-Ray : Newsgroups : povray.binaries.animations : Bouncing Ball... Warning: Checkered floor (322 KB) Server Time
20 Jul 2024 17:28:40 EDT (-0400)
  Bouncing Ball... Warning: Checkered floor (322 KB) (Message 1 to 6 of 6)  
From: Jetlag
Subject: Bouncing Ball... Warning: Checkered floor (322 KB)
Date: 16 Feb 2000 00:56:55
Message: <38aa3c27@news.povray.org>
As you can see, I'm trying to get a good physics model going, this was one
of my first attempts.


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Attachments:
Download 'trace32.mpg' (323 KB)

From: Markus Becker
Subject: Re: Bouncing Ball... Warning: Checkered floor (322 KB)
Date: 16 Feb 2000 05:54:57
Message: <38AA8252.506BD21C@student.uni-siegen.de>
Jetlag wrote:
> 
> As you can see, I'm trying to get a good physics model going, this was one
> of my first attempts.

Interesting, how did you manage to get the thing rolling once
it stops bouncing?

Markus


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From: Rick [Kitty5]
Subject: Re: Bouncing Ball... Warning: Checkered floor (322 KB)
Date: 16 Feb 2000 08:05:25
Message: <38aaa095@news.povray.org>
does it work if you put objects in the scene as well?

Rick

"Jetlag" <bga### [at] microsoftcom> wrote in message
news:38aa3c27@news.povray.org...
> As you can see, I'm trying to get a good physics model going, this was one
> of my first attempts.
>
>
>


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From: Jetlag
Subject: Re: Bouncing Ball... Warning: Checkered floor (322 KB)
Date: 16 Feb 2000 18:54:25
Message: <38ab38b1@news.povray.org>
no, this scene was hard coded, ie, the direction of the acceleration, the
normal of the bounce, the only thing the ball "sees" is the floor.  It was
just a test of vector acceleration and velocity.

> does it work if you put objects in the scene as well?
>
> Rick
>


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From: Jetlag
Subject: Re: Bouncing Ball... Warning: Checkered floor (322 KB)
Date: 16 Feb 2000 18:54:29
Message: <38ab38b5@news.povray.org>
Well, the rotation is faked, the equation I used makes it look natural only
when its on the floor, it goes way to fast when its bouncing.  Basically
every time it touches the floor I made it lose velocity. It retains almost
the same (x,y) speed when its bouncing and slows down quickly after it
settles on the floor.


> Interesting, how did you manage to get the thing rolling once
> it stops bouncing?
>
> Markus


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From: Peter Popov
Subject: Re: Bouncing Ball... Warning: Checkered floor (322 KB)
Date: 16 Feb 2000 20:43:16
Message: <QlGrOGOJe1ljEfDA47vAy75ozZ=D@4ax.com>
On Wed, 16 Feb 2000 00:53:01 -0500, "Jetlag" <bga### [at] microsoftcom>
wrote:

>As you can see, I'm trying to get a good physics model going, this was one
>of my first attempts.

I think it should reverse the direction of rotation when it bounces.
Superballs do, pool balls as well, so...


Peter Popov
pet### [at] tagpovrayorg
ICQ: 15002700


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