Yeah that's sort of my take at this point :( Just found it extremely odd since it's a pretty basic node and it's been around so long
Sent from my iPhone On Mar 19, 2011, at 20:08, Ofer Koren <[email protected]> wrote: > From the big pop it makes as soon as I put in the smallest non-zero value, > I'd see it's simply buggy... > > - Ofer > www.mrbroken.com > > > On Wed, Mar 16, 2011 at 7:49 PM, Adam Mechtley <[email protected]> > wrote: > I posted this up on tech-artists.org, but I figured someone here may also > have an idea (so, my apologies for those of you who will be seeing this > twice). > > Briefly, the problem is that I cannot figure out what the aimConstraint's > offset attribute is actually doing mathematically. If you look at the Maya > documentation, it says: > > Offset > Specifies an offset position (translate X, Y, and Z) for the constrained > object relative to the target point. Note that the target point is the > position of the target object’s rotate pivot, or the average position of the > rotate pivots of the target objects. Default values are all 0. > > This is of course rubbish, and the the offset value is in fact some kind of > Euler angle offset. On an orientConstraint, for instance, the offset > attribute is simply a post-rotation of Euler angles using the rotateOrder of > the object being constrained. As such, a constrained object's rotation is > something like: worldSpaceConstraintRotation * offsetRotation > > On an aimConstraint, however, you get this result only when the constrained > object has a rotateOrder of XYZ. If using any other rotateOrder, you get some > other result, and I haven't managed to reverse-engineer it successfully to > figure out what's going on. I pasted two short scripts on my tao thread that > demonstrate the problem: > > http://tech-artists.org/forum/showthread.php?t=1512 > > Thanks in advance for any help anyone can offer! > -- > http://groups.google.com/group/python_inside_maya > > -- > http://groups.google.com/group/python_inside_maya -- http://groups.google.com/group/python_inside_maya
