Blender Git Commit Log

Code cleanup: break up project_paint_begin() into smaller functions

This initialization function was massive with lots of local variables,
quite hard to follow. Splitting up doesn't make it perfectly clear,
but a bit better.

The changes are mostly quite mechanical splitting apart code, plus a
few new temporary structs for passing data without too many confusing
args. No intentional changes to functionality.

Reviewed By: psy-fi

Differential Revision: https://developer.blender.org/D1035