Mouselook Navigation is a free addon for Blender 2.8 and above, that attempts to improve upon Blender’s 3D viewport navigation and provide some neat features from other applications (e.g. ZBrush’s tablet/stylus-friendly navigation).
- ZBrush mode - mostly useful for tablet users, since it allows to use the same mouse button both for painting/sculpting and for navigation (depending on whether you clicked on geometry or on background)
- Easy switching between navigation modes without exiting the operator
- Changes to viewport can be cancelled from any mode
- FPS-like movement is available in all navigation modes
- Crosshair is visible in all modes and has a different look when obscured
- Option to more easily prevent accidental viewport rotation in Ortho projection
- Different turntable/trackball algorithms and different fly mode (more FPS-like)
- I cannot understand how to implement Blender’s trackball behavior in python. I’ve tried my best to translate the corresponding C code, but the result still behaves very weirdly.
- Other known issues (see the documentation for the full list) are caused by the incompleteness of Blender’s API, so currently it’s beyond my abilities to properly fix them.
The original version of the addon (for Blender 2.5 - 2.7) is still available for historical purposes, but won’t be maintained/supported.