Wokka Posted October 27, 2004 Share Posted October 27, 2004 G'day, I've animated several vehicles moving around an industrial project (aligned to a spline) but now the client wants to see the front-end loader reversing. I can't get the object to reverse, it (logically) follows the spline. Is there a easier trick to making it work without having to flip the whole object between two frames? I'm also trying to incorperate a great little Xpresso tag that rotates the wheels at the same time, it would be nice to have this effect but not a necessity. Cheers R9 + Advance Render Wokka Link to comment Share on other sites More sharing options...
Ace_Face Posted October 27, 2004 Share Posted October 27, 2004 Take a look at set driven keys. Here's a Tutorial. Your manual may have some insight into this problem too, by using xpresso. Link to comment Share on other sites More sharing options...
Frosty Posted October 27, 2004 Share Posted October 27, 2004 Unless I'm misunderstanding you, you should be able to keyframe the position on the spline. ie: Frame 1=0% Frame 30=100% Frame 40=60% This should cause an object to travel the length of a spline and the back up when it gets to the end. Add a little ramping in time curves and I think you're done. Link to comment Share on other sites More sharing options...
Frosty Posted October 27, 2004 Share Posted October 27, 2004 http://www.crucialperception.com/truck-on-spline.zip sample file Link to comment Share on other sites More sharing options...
Frosty Posted October 27, 2004 Share Posted October 27, 2004 http://www.crucialperception.com/truck-on-2spline.zip Second sample file using seperate reversing path Link to comment Share on other sites More sharing options...
Wokka Posted October 28, 2004 Author Share Posted October 28, 2004 Frosty, The first example is great and simple but I would need to reverse on a different spline so the 2nd would be great, unfortunatley explorer can't find the file. Can you repost it? Thanks again Ace_Face, Thanks for the idea, Xpresso is still a bit of voodoo for me but this might be a time to take a plunge. So much to learn, so little time. Thanks Cheers all Wokka ( I suppose I'll have to wait for the sun to come up on your side of the world Link to comment Share on other sites More sharing options...
Ace_Face Posted October 28, 2004 Share Posted October 28, 2004 Ace_Face, Thanks for the idea, Xpresso is still a bit of voodoo for me but this might be a time to take a plunge. So much to learn, so little time. Using set driven keys is really simple. Really just run through that tutorial and you will see there are tons of applications where that can be useful. Link to comment Share on other sites More sharing options...
Frosty Posted October 28, 2004 Share Posted October 28, 2004 Oopsies http://www.crucialperception.com/truck-on-2splines.zip I tested it this time Link to comment Share on other sites More sharing options...
Wokka Posted November 1, 2004 Author Share Posted November 1, 2004 Thanks guys, been off line for a few days but your answers and ideas were spot on. Cheers again Wokka Link to comment Share on other sites More sharing options...
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