What exactly is "Shear" and why would I wan't to remove it ? Thanks Hawkfyr

This is probably best explained in an example. Rotate an object, let's say a cube, 45 degrees on the y-axis. Then, scale it in world space on one of the horizontal axises. The cube gets 'stretched' along that axis. This is what Bryce calls 'Shear'. You can avoid this altogether by using object space scaling, but shear can be useful sometimes (house roofs, etc.). Hope this helped. Gecko

Thanks Gecko, That helps alot. I'm familiar with that phenomanon(sp)and I almost always use object space or camera space because of it. I guess the confusion lies in the terminology. I always called that "Skewing". Thanks very much. Hawkfyr.

I thought that shearing was a diagonal deformation caused by e.g. moving each point {x,y} to {x+y*a,y}. (I believe that sheep are subjected to a shear effect every spring :-) )

I read a tutorial on using shear and it was very mathmatically confusing to me but looks like a cool effect if mastered. heres the link http://www.geocities.com/SoHo/Veranda/6288/tutorial_01.htm

This was very helpful to me. Thanx.