i'm trying to rig a character and want to use the 'reverse foot lock' setup. i've read some tutorials about it (eg. by Steven J. Tubbrit (http://www.steven-tubbrit.pwp.blueyonder.co.uk/Tutorials/Tutorial_04_Page_003.htm) and Javier Solsona (http://www.vfs.com/~m07goosh/Tutorials/reversefootlock/reversefootlock.htm) ) but i'm getting really strange results:
as you can see on the images, the leg/foot twists at a certain position (the foot does something similar in another position)
for this setup i followed exactly tubbrits tutorial (ikRPSolver for the leg and ikSCSolver for the foot, both parented to the reverse foot bones), and remade it several times but i'm always getting the twisting.
i've also downloaded his final .mb file, there everything is ok.
the same with solsonas .mb, it works perfectly but when i'm doing the setup myself, again, it's crap at certain positions...
btw,... the first strange reaction appears when i'm creating the SCSolver: then the ankle and ball bones rotate a random value around their y-axis(parallel to the bones direction)...
i'm really annoyed now because i can't find the reason for this error ....
it would be very nice if someone could tell me what i'm doing wrong.
thx and greetings, delaque