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View Full Version : Rotational Limits - Help!!! (New user from LW)

PinkWiggle
07-26-2007, 03:14 AM
Hello,
I am new to XSI from Lightwave. For my first attempt at some magic, I am working on rigging up a simple robot arm. It is similar to the industrial machines that put cars together.

For my plan of action, I figured I would make a simple IK chain and then just parent the different parts of the mesh onto their respective bones. However, I am running into some issues with the IK. They are:

1 - XSI doesn't seem to be respecting the Rotational Limits I am setting. It respects them in FK, but when I go to IK, the bones seem to have a mind of their own. Is there anyway to make the IK stick to just the constrained regions?

2 - In Lightwave there is a feature to set the Controller for each Rotational Axis. So, you can set the Heading to IK and the Pitch to FK, etc. Is there a similar feature in XSI?

Thanks!
bravmm
07-26-2007, 10:23 AM
Hi,

1. Not completetely sure on this, but rotation constraints are IK only AFAIK.
2. Not quite sure what you mean, but you can set up SRT "preferences" per object, so when you select something it will come up with -say- just 'x translation', or 'z scaling' etc. So you could set the effector to be just translation, and the bone itself to just rotation?

rob

edit: it's an additional property you add to the object and it's called transform setup. so.. Get>Property>Transform Setup. It's been accessed when you select the object in supra mode (with the spacebar)
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07-26-2007, 10:23 AM
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