It's a work in progress: the rough basis of a blender AddOn, intended to provide an easy way to navigate a side-by-side stereoscopic setup. The user can pan and zoom synchronously between two 3dViews. I basically use it as an alternative to blender's internal stereoscopic mode, essentially because I use a side-by-side custom device and the blender's side-by-side mode results in an uncomfortable tapered display... This plugin turns blender into a basic photogrammetric workstation if one can provide:
- a couple of oriented and georeferenced cameras e.g. issued from a MicMac reconstruction,
- and a set of georeferenced data handled with Blender GIS.
My own hardware setup involves a Wild ST4 stereoscope mounted ahead of a monitor. This is a dual purpose montage initially used to make photo-interpretation.
Basically install the AddOn the usual way, then split the Default 3dView, assign a local camera to each 3dView (the user is supposed to be aware of stereoscopic requirements for the camera pair setup). The 'Syncview settings' menu displays as a sidebar panel within 3dView region (Ctrl+N), allowing to set up left and right cameras. Via a modified keymap within both 3dViews:
- the synchronous panning is accessed by Shift+Alt+MMB;
- the synchronous zooming is accessed by Ctrl+Alt+MMB; The latter is x-y responsive:
- y-direction stands for zooming factor;
- x-direction stands for the gap distance between views, providing an intuitive way to manage this tricky aspect of stereoscopic effect e.g. on deep scenes.
- The Pan ratio slider allows to adjust the panning factor, especially when the camera view is highly magnified.
- The Lock View Rotation toggle prevents the user from bailing out of Camera view.
- In addition the Auto align view button performs a (rough) relative automated alignment when you're lost...
Enjoy ;-)