On: Ask HN: Quit my job for a year to write open sourc...

[melling]

Blender: http://www.blender.org/

Just because it seems like a cool project in need of more help. It really does depend on your interests, of course.

[thenomad → melling]

If you're going to do Blender stuff, my vote would be to focus on interoperability with other applications. In particular, Blender needs a working Alembic import/export function, IMO.