My memory is that when using trackball style to orbit while trying make my hand only move horizontally, the slight vertical motion of my hand would rotate along the 3 axis and I would end up with a different orbit than I was trying to do.
Today, with 3.3.2rc I see no difference between turntable and trackball.
With both, if I start in front view then move the mouse from top-left to bottom right, the view orbits around the 3 axis, in what looks like the same way, to me. What am I missing?
Aside from orbit style, I am using emulate numpad and I’ve changed frame selected to ‘.’.
I see a difference in how fast the orbit happens, but with either, if I drag from middle to upper-left, the view of the mesh goes from front to bottom, i.e. it orbits all 3 axis (does not lock the z axis).
I suspect the difference that I see is about orbit sensitivity.
I think there may be some confusion about how turntable mode locks the z axis
Check out this video:
You can see that in turntable mode, it doesn’t prevent you from looking at the bottom of an object, it just keeps the z axis upright, relative to the viewport.
The blue circles on the axis indicator are always inline vertically:
But in trackball mode, the z axis can be in any orientation: