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From: Reusser
Subject: bouncing ball (Quicktime-100kb :))
Date: 9 Aug 2001 08:42:02
Message: <3B7284F1.243C4CB6@chorus.net>
After my computer was at comp-usa for a month, then macmedics for about
a week and a half, I'm finally pov-ing again.  Here's my first attempt
at a macro that will bounce a ball while deflecting it off walls.  I was
pretty happy with it even though the camera look_at path is not too
smooth.

Also, I encoded this in Sorenson (A quicktime codec) format, so if you
don't have quicktime, please don't complain.  If you do, however, feel
free to comment on which codec I use or whatever.

 - Rico


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Attachments:
Download 'bounce_s.mov' (94 KB)

From: Francois Labreque
Subject: Re: bouncing ball (Quicktime-100kb :))
Date: 9 Aug 2001 08:47:32
Message: <3B728403.CF58054F@videotron.ca>
Reusser wrote:
> 
> After my computer was at comp-usa for a month, then macmedics for about
> a week and a half, I'm finally pov-ing again.  Here's my first attempt
> at a macro that will bounce a ball while deflecting it off walls.  I was
> pretty happy with it even though the camera look_at path is not too
> smooth.

The camera movement almost made me sick.

Nice anim, nevertheless.

-- 
Francois Labreque | Unfortunately, there's no such thing as a snooze
    flabreque     | button on a cat who wants breakfast.
        @         |      - Unattributed quote from rec.humor.funny
   videotron.ca


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From: Reusser
Subject: Re: bouncing ball (Quicktime-100kb :))
Date: 9 Aug 2001 09:11:36
Message: <3B728C04.5FD34AB9@chorus.net>
Oh yeah, I had another question.  Is there a way to motion blur the room and
the ball relative to the camera motion?  Someone suggested that I move the
scene instead of the camera, but that seems very difficult with non-linear
motion.  I just wanted to try this, not that it would really look that great.


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From: Lawrence Winstead
Subject: Re: bouncing ball (Quicktime-100kb :))
Date: 9 Aug 2001 09:48:23
Message: <3B7294A8.64C119F1@slpschools.org>
Sweet!  Aside from the jerky movement of the camera, the animation is
beautiful.  Do you know -why- the camera look_at path is jerky?
I don't know much about motion blur (just yet) but are you blurring the
camera as it is now?
-Law

Reusser wrote:

> After my computer was at comp-usa for a month, then macmedics for about
> a week and a half, I'm finally pov-ing again.  Here's my first attempt
> at a macro that will bounce a ball while deflecting it off walls.  I was
> pretty happy with it even though the camera look_at path is not too
> smooth.
>
> Also, I encoded this in Sorenson (A quicktime codec) format, so if you
> don't have quicktime, please don't complain.  If you do, however, feel
> free to comment on which codec I use or whatever.
>
>  - Rico
>
>   ------------------------------------------------------------------------
>                       Name: bounce_s.mov
>    bounce_s.mov       Type: Quicktime Video (video/quicktime)
>                   Encoding: base64
>                Description: Unknown Document


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From: Reusser
Subject: Re: bouncing ball (Quicktime-100kb :))
Date: 9 Aug 2001 10:48:19
Message: <3B72A2AE.6D2EFFB4@chorus.net>
Lawrence Winstead wrote:

> Sweet!  Aside from the jerky movement of the camera, the animation is
> beautiful.  Do you know -why- the camera look_at path is jerky?
> I don't know much about motion blur (just yet) but are you blurring the
> camera as it is now?
> -Law

It took a long time for it to go through the bounce macro 150 times for each
frame, so I had it only put a spline around the current point plus or minus two
points.  Every five frames or so it uses a new spline for the camera look_at,
and I guess they just don't quite match up perfectly.  I guess it's possible to
just use an output file for the spline, so maybe I'll figure out how that works
today.

 - Rico


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From: Rick [Kitty5]
Subject: Re: bouncing ball (Quicktime-100kb :))
Date: 9 Aug 2001 11:50:23
Message: <3b72b13f@news.povray.org>
motion sickness - vomit
quicktime - vomit

cool anim :)


--
Rick

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TEL : +44 (01625) 266358 - FAX : +44 (01625) 611913 - ICQ : 15776037
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From: Tony[B]
Subject: Re: bouncing ball (Quicktime-100kb :))
Date: 10 Aug 2001 11:22:42
Message: <3b73fc42@news.povray.org>
/me am dizzy... I'm gonna see it again! wwwhoaa...


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From: Bryan Valencia
Subject: Re: bouncing ball (Quicktime-100kb :))
Date: 10 Aug 2001 15:06:37
Message: <3B743130.EAA0D714@209software.com>
I actually LIKE the camera motion.  It has a nice "human" quality to it.  I
can just see the poor cameraman trying to keep up with the ball!
--
Bryan Valencia
Software Development Engineer


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From: Ben Birdsey
Subject: Re: bouncing ball (Quicktime-100kb :))
Date: 14 Aug 2001 00:16:08
Message: <3B78A62A.7CC41850@mail.com>
Reusser -

Cool anim.  The motion blur makes the scent look pretty realistic.  Are
you using the newest MegaPOV's motion blur feature?  It seems pretty
limited to me ( straight line motions and all that) :(

There used to be a patch for POV that had used Monte-Carlo motion blur
(similar to the method POV uses to calculate focal blur, radiosity, and
photons).  It might be worth a lot to see if that patch still exists... 
I'd like to see the results!

- Ben


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From: Reusser
Subject: Re: bouncing ball (Quicktime-100kb :))
Date: 14 Aug 2001 13:49:49
Message: <3B796459.4AF1040@chorus.net>
Ben Birdsey wrote:

> Cool anim.  The motion blur makes the scent look pretty realistic.  Are
> you using the newest MegaPOV's motion blur feature?  It seems pretty
> limited to me ( straight line motions and all that) :(

Thanks.  Straight lines?  nope.  If you look closely, when it bounces off
the wall, the motion blur looks like this: \/.  It recalculates the
position with the bounce macro for each motion blur image.  This way, you
don't get straight-line motion.

> There used to be a patch for POV that had used Monte-Carlo motion blur
> (similar to the method POV uses to calculate focal blur, radiosity, and
> photons).  It might be worth a lot to see if that patch still exists...
> I'd like to see the results!

Hmmm... Even if it still exists, I highly doubt they came out with a
macintosh patch.  Sounds like an interesting idea though.  I wonder how it
works.

 - Rico


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