mutantbob/blender-letterbox

add-on for blender to provide quick letterboxing functionality

Python

This is an add-on for blender which provides quick letterboxing functionality for VSE strips.

https://github.com/mutantbob/blender-letterbox

http://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/Sequencer/Letterbox

https://developer.blender.org/T41815