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From: Rune
Subject: Spider Crawling Along a Path 2
Date: 3 Nov 2001 21:38:48
Message: <3be463e8@news.povray.org>
Here's an improved version. No time to comment right now. There's some
errors in this one that I didn't manage to fix yet, but they're not very
visible because the legs are moving rather fast.

Rune
--
3D images and anims, include files, tutorials and more:
Rune's World:    http://rsj.mobilixnet.dk (updated June 26)
POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk


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Attachments:
Download 'spider2.mpg' (191 KB)

From: Tony[B]
Subject: Re: Spider Crawling Along a Path 2
Date: 3 Nov 2001 22:10:47
Message: <3be46b67@news.povray.org>
That's the ticket!


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From: Bill DeWitt
Subject: Re: Spider Crawling Along a Path 2
Date: 3 Nov 2001 22:40:04
Message: <3be47244$1@news.povray.org>
"Rune" <run### [at] mobilixnetdk> wrote in message
news:3be463e8@news.povray.org...
> Here's an improved version. No time to comment right now. There's some
> errors in this one that I didn't manage to fix yet, but they're not very
> visible because the legs are moving rather fast.

    That is much more realistic.


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From: Rick [Kitty5]
Subject: Re: Spider Crawling Along a Path 2
Date: 4 Nov 2001 12:09:38
Message: <3be53002@news.povray.org>
very sweet - much better


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Rick

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From: Batronyx
Subject: Re: Spider Crawling Along a Path 2
Date: 4 Nov 2001 15:15:59
Message: <3be55baf@news.povray.org>
"Rune" <run### [at] mobilixnetdk> wrote in message
news:3be463e8@news.povray.org...
> Here's an improved version. No time to comment right now. There's some
> errors in this one that I didn't manage to fix yet, but they're not very
> visible because the legs are moving rather fast.
>
> Rune
> --
> 3D images and anims, include files, tutorials and more:
> Rune's World:    http://rsj.mobilixnet.dk (updated June 26)
> POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
> POV-Ray Webring: http://webring.povray.co.uk
>

I'm very impressed with your various walking routines. I would have to put in
much work before I could come up with anything even close. Given that, I hate to
offer any critical feedback. Since you asked for some on the last anim, I'll
offer this: Some of the legs on the inside turns seem to have only minimal
forward motion, so they look like they're just moving up and down in place.
Perhaps you could add a test to set CurPoint to PrevPoint if the distance
between PrevPoint and NextPoint is below some threshold. You may have already
done this at some point, because I don't notice this behavior in your Quintoped.

Batronyx ^"^


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From: Dan Byers
Subject: Re: Spider Crawling Along a Path 2
Date: 4 Nov 2001 20:16:22
Message: <B80AFF19.3B48%goofygrafx@aol.com>
in article 3be463e8@news.povray.org, Run### [at] runejohansen@mobilixnet.dk
wrote on 11/3/01 3:37 PM:

> Here's an improved version. No time to comment right now. There's some
> errors in this one that I didn't manage to fix yet, but they're not very
> visible because the legs are moving rather fast.
> 
> Rune
> --
> 3D images and anims, include files, tutorials and more:
> Rune's World:    http://rsj.mobilixnet.dk (updated June 26)
> POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
> POV-Ray Webring: http://webring.povray.co.uk

okay, the next thing you need to add is a giant shoe coming down and
squishing Mr. Spider... pleeeeeeeeease!!!

-- 
dan
http://hometown.aol.com/goofygrafx
(to reply, substitute 'home' for 'aol')


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From: Bill DeWitt
Subject: Re: Spider Crawling Along a Path 2
Date: 4 Nov 2001 20:54:12
Message: <3be5aaf4$1@news.povray.org>
"Dan Byers" <goo### [at] aolcom> wrote :
>
> okay, the next thing you need to add is a giant shoe coming down and
> squishing Mr. Spider... pleeeeeeeeease!!!

    Spiders are our friends, they eat the other bugs, the bugs that
really -do- need the shoe.


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From: Rune
Subject: Re: Spider Crawling Along a Path 2
Date: 4 Nov 2001 23:12:05
Message: <3be5cb45@news.povray.org>
"Batronyx" wrote:
> I'm very impressed with your various walking routines.

Thank you!

> Given that, I hate to offer any critical feedback.

But constructive critical feedback is what I appreciate the most! :)

> Some of the legs on the inside turns seem to have only
> minimal forward motion, so they look like they're just
> moving up and down in place.

Sharp turns should in fact indeed cause this behavior as I see it. I don't
think a leg can just skip a turn - it goes up and down even if it doesn't
move much forward.

However, apparently there is another problem with the steps being too small
(glad you noticed it too). I've been looking into that, but it's more
difficult to fix than I thought at first. I'll try to fix it though.

One interesting note: in an updated version of the animation that I've made
but not posted here the spider is hairy and looks more realistic, and I've
got rid of the checker pattern on the ground. The individual frames look
much better, but for some reason that I haven't figured out yet, the
animation looks like stop-motion, like monsters in old movies. That's not
what I'm aiming for so I'm trying to figure out what causes it. It might be
some changes I've done to the walk cycle - or some bugs in my code...

Rune
--
3D images and anims, include files, tutorials and more:
Rune's World:    http://rsj.mobilixnet.dk (updated June 26)
POV-Ray Users:   http://rsj.mobilixnet.dk/povrayusers/
POV-Ray Webring: http://webring.povray.co.uk


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From: Tom Melly
Subject: Re: Spider Crawling Along a Path 2
Date: 6 Nov 2001 17:15:38
Message: <3be81aba$1@news.povray.org>
"Rune" <run### [at] mobilixnetdk> wrote in message
news:3be5cb45@news.povray.org...

> One interesting note: in an updated version of the animation that I've made
> but not posted here the spider is hairy and looks more realistic, and I've
> got rid of the checker pattern on the ground. The individual frames look
> much better, but for some reason that I haven't figured out yet, the
> animation looks like stop-motion, like monsters in old movies. That's not
> what I'm aiming for so I'm trying to figure out what causes it. It might be
> some changes I've done to the walk cycle - or some bugs in my code...
>

The one on your webpage? To be honest it looks perfect IMHO - I'm not sure I can
spot the monster-movie problem, it looks very fluid. The only fault, if any, is
behavorial. Could you try varying the pace every now and then? He could even
stop to check something out on the ground...


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From: Bob H 
Subject: Re: Spider Crawling Along a Path 2
Date: 7 Nov 2001 01:44:50
Message: <3be89212$1@news.povray.org>
"Rune" <run### [at] mobilixnetdk> wrote in message
news:3be463e8@news.povray.org...
> Here's an improved version. No time to comment right now. There's some
> errors in this one that I didn't manage to fix yet, but they're not very
> visible because the legs are moving rather fast.

Hit it with a shoe!  Extremely nice animating Rune.  Has a life-like
appearance, the way it traverses that surface it's crawling over.  Each leg
seems to be sensing for ground to cling to.

Bob H.


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