Yeah, the trick is that Ctrl+arrow current means something in Manipulate, but that’s probably not widely used. (Remap it to Ctrl+Shift+arrow in manipulate to rotate around the Z axis.)
Also, Alt already means something on the keyboard — it’s the “bigger step” multiplier in both Navigator (scale = 6.0f) and Manipulator (10° vs 5°).
So here would be my “consistent camera” proposal - though I welcome other ideas:
| Camera (always, any tool) | |
|---|---|
| Alt/Option + drag | rotate / zoom / pan per button |
| Middle drag, Right drag | zoom-tilt, pan (already true in Navigator) |
| Ctrl + arrows | pan |
So for Alt + Mouse:
- Alt+Left Mouse Button = rotate
- Alt+Middle = zoom
- Alt+Right = pan
I think these would all be currently unused.
Thoughts? Concerns? Better ideas? @vhanzl - would this fit your needs?