Anim curve stops at end of curve

 04 April 2013 #1 nottoshabi Expert   portfolio Shaby Character TD Los Angeles, USA   Join Date: Feb 2002 Posts: 880 Anim curve stops at end of curve Why does an animation path stop at the end of the curve? For example if we create a nurbs circle and a locator make an motion path it will have a start and an end. Even if we delete the anim curve from the motion path and manipulate the U value by hand it goes from 0 to 1. Is there a way to make it continuously loop? Pass the value of 1? __________________ Shaby Character TD http://nottoshabi.wix.com/nottoshabi share quote
 04 April 2013 #2 zaskar Expert portfolio franky****inFourFingaz - Dresden, Germany   Join Date: Dec 2010 Posts: 327 The motion path u value indirectly refers to the curves u parameter (its the curve length from min param to max param but normalized down to 0 -> 1) so if you set the motion path value above 1 it sticks at the curves maximum parameter. To animate an infinite loop you just would need to put the motion path u value back to 0 and start again. For motion paths on periodic curves you could easily do this without much hassle if you open the animCurveTL AETemplate and set the option menu "Pre Inifinity" to "cycle". share quote
 04 April 2013 #3 TimCallaway Problem Solver   portfolio Timothy Callaway Technical artist SP USA   Join Date: Jul 2008 Posts: 265 What are you using the motion path for? __________________ Webiste/demoReel share quote
 04 April 2013 #4 nottoshabi Expert   portfolio Shaby Character TD Los Angeles, USA   Join Date: Feb 2002 Posts: 880 zaskar. That works if you chose to use the anim curves from the motion path, and have only one object on the path. And even then it jumps at the last frame. Lets say you add 2 more objects to the motion path and have them start at different time so they fallow each other like train carts. That does not work any more. Tim at first I wanted to use it for tank tracks, and then was thinking of using it for a toy train that goes around a xmas tree. Nothing in particular just playing around. An entrusting problem to solve. A way to animate objects on a path, that fallow each other in a continues loop. Any other way of doing this? Maybe a constraint of some sort that fallows a path? __________________ Shaby Character TD http://nottoshabi.wix.com/nottoshabi share quote
 04 April 2013 #5 TimCallaway Problem Solver   portfolio Timothy Callaway Technical artist SP USA   Join Date: Jul 2008 Posts: 265 For track treads, like a tank, I use a spline ik and just animate the offset attr. For animators you go and use the post infinity to loop it. Here is a demo maya file https://creative.adobe.com/share/0d...cf-07cebcf7e93a __________________ Webiste/demoReel Last edited by TimCallaway : 04 April 2013 at 03:16 AM. share quote
 04 April 2013 #6 nottoshabi Expert   portfolio Shaby Character TD Los Angeles, USA   Join Date: Feb 2002 Posts: 880 Fantastic how did you connect the ends? __________________ Shaby Character TD http://nottoshabi.wix.com/nottoshabi share quote
 04 April 2013 #7 TimCallaway Problem Solver   portfolio Timothy Callaway Technical artist SP USA   Join Date: Jul 2008 Posts: 265 Ends? The circle is just a normal nurbs circle. The joints are created in a spaced line on the origin. Like: . . . . . . . . . . . . . . . . . . . . normal joint chain. SplineIk tool, uncheck everything in the settings, check the root on curve box. Select first joint, shift select End joint, shift select curve. The joints will all pop onto the curve, then just animate the splineik.offset(Or whatever it's named haha). You should be able to pick it apart in the scene I posted. This works for everything that I would use a motion path for, save facial setups. Then motion paths come into play =] __________________ Webiste/demoReel Last edited by TimCallaway : 04 April 2013 at 03:10 AM. share quote
 04 April 2013 #8 CGTalk Moderation Expert   Join Date: Sep 2003 Posts: 1,066,473 Thread automatically closed This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum. share quote

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