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Old 09-11-2002, 07:00 AM   #1
grunze
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Default Help with path animation...

Hi there,
I have a spring type object in my scene and i have to animate a bal rolling down it. How can create a curve to take the exact same shape as the spring to work as the path?

Thanks for the help! Ari

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Old 09-11-2002, 07:03 AM   #2
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The easiest way would be to create a nurbs spring, duplicate a surface curve, delete that curve's history and use it. Did you create that spring object using curves? extrude surface perhaps?
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Old 09-11-2002, 07:06 AM   #3
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Nope, it was created using the premade spring option in 3ds max, then i imported it into maya.

I couldn;t figure out how to make a spring in maya.
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Old 09-11-2002, 07:34 AM   #4
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ah, ok. Check out my tornado tutorial. I've got a video in the VIP section and also a free text version at my site (link in sig). I go over how to create a spring shaped curve. From there you should be able to take it.

Hope that helps.
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Old 09-11-2002, 12:04 PM   #5
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Ari: Another finn here? (if so, nice )
Welcome aboard anyway
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Old 09-11-2002, 01:05 PM   #6
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How about this?;

One can simply make a nurbs-curve by klicking the numerous vertices on the spring-objects of yours.

It's not done in ten seconds, but it cannot take forever etither.

If the curve need modification;
1) Make a locator aligned to the center of the spring.
2) Set pivot point of the curve to the locator and scale the X and Y axis.
3) Leave the Z axix alone. Simply move the whole curve a little down or a little up if this is needed.

Just some thoughts.
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Old 09-11-2002, 04:18 PM   #7
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Hi there mtmckinley

I followed your tornado tutorial, but there is a problem..

Once i extrude my curve into the spring like shape, it becomes an extruded surface, which i cannot use as a motion path.
How can i use this shape as a simple curve?

I appreciate the help.
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Old 09-11-2002, 04:34 PM   #8
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once you have that shape, select an isoparm, Edit Curves > Duplicate Surface Curve. It will duplicate the isoparm to create a spiraling curve. Select the curve, delete it's history. You can then delete your surface and you are left with the curve to use as a motion path.

Hope that made sense.
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Old 09-11-2002, 05:05 PM   #9
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Gotcha!!
Thanks!
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Old 09-11-2002, 05:39 PM   #10
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Just download Goomoo Utilities from Highend3d. Its a script with a lot of cool primitives in it. Including spiral and spiral along curve.

http://www.highend3d.com/maya/

its the 25th line down -
(10-30-02: Updated Goomoo Utilities v0.6 in ( Maya > Scripts ))
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Old 09-11-2002, 09:46 PM   #11
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Thank you everyone for your help!
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Old 10-11-2002, 12:43 AM   #12
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Default Mayebe this would work?

I'm no maya master, but why couldn't you just make a cv curve and make that your motion path. Using side and top views it couldn't be too hard. i actually found animating with motion paths to be the easiest thing for me in Maya and i've only been working with Maya for about 6 months.
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Old 10-11-2002, 02:30 AM   #13
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Yeah, that could work too. We're just giving him options that would create a generated spiral curve is all.
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Old 10-11-2002, 07:33 AM   #14
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BTW, Goomoo Utilities rocks!

I've used it since v0, and it just keeps getting better.

My fav function is: Extrude face along curve.

Simple and easy.
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