Flipless twist bone

 06 June 2013 #1 JackBowyer New Member portfolio Jack Bowyer Student Bournemouth University Bournemouth & Oxford, United Kingdom   Join Date: Jun 2013 Posts: 3 Flipless twist bone I recently found this page by Felix Joleanes about a flipless twist bone. It works flawlessly, but I'm having trouble making a 60% bone, 30% bone etc. Up until finding it I had never even heard of quaternions, matrices etc. I've done a fair amount of research on them and gained at least a primitive understanding but I still can't seem to solve the problem. Here's some of the stuff I've tried: Slerp function - Causes flipping and 120 degrees and 240 degrees Orientation Constraint- Flipping at 180 (angle might be different- I can't remember) DegToRad / Eulerangles- Same flipping as orientation constraint Expose Transform + Wiring- Usual flipping, makes the flipless bone at the top kinda pointless Does anyone have a working solution to this problem? If you could explain the maths behind it too I'd be really grateful! (Ps. This is my first post, I'm glad i finally got round to joining you all!) share quote
 07 July 2013 #2 cgsena PRO portfolio Priyankar Kolkata, India   Join Date: Mar 2011 Posts: 69 hi, can you post the screenshot or the file of the problem? file would be great. regards, share quote
 07 July 2013 #3 JackBowyer New Member portfolio Jack Bowyer Student Bournemouth University Bournemouth & Oxford, United Kingdom   Join Date: Jun 2013 Posts: 3 If you download the file at the bottom of this page you can find an example of the twist bone setup: http://joleanes.com/tutorials/flipp...pingless_01.php If you make another bone, and try to get that to move 50% of the twist bone's rotation on the X axis without having flipping issues then you'll see the problem. share quote
 07 July 2013 #4 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. __________________ CGTalk Policy/Legalities Note that as CGTalk Members, you agree to the terms and conditions of using this website. share quote

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