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This script calculates the twist value on an ikHandle so that rotateX on the first joint in the ik chain equals 0.
When to use:
Let's say that you're creating a no-flip knee. You set the poleVector on the ikHandle to 0 0 -1 and then you must find a twist value so that rotateX on the hip-joint equals 0. If the leg is on a straight line, setting the twist value to 90 or -90 mostly gets the job done but what if the leg isn't on a straight line? Then you can either try and error the twist value all the way down to 15-decimals precision or you can run this script.
How to use:
Source, select ikHandle and run fixTwistIK(); in the commandline. That's it.
Limitations:
RotateX must be the twisting axis on the joint. 0 must be the desired value on rotateX. I'll fix this if there's a demand for it.
Please use the Bug System to report any bugs.
Please use the Feature Requests to give me ideas.
Please use the Support Forum if you have any questions or problems.
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