Blender Git Loki

Merging r43025 through r43129 from trunk into soc-2011-tomato

Fix #29764: Crash when border rendering in sequencer. (Not Cycles related)

Sequencer render context should be as large as the whole frame when rendering
using border without clipping.

Can be implemented in more clear way but it'll require more global refactoring.

Camera tracking: more accurate track preview widget

- Added 1px extra margin to deal with bicubic interpolation nicely
- Code should be a bit more clear now

update UV project modifier to use MLoopUV's rather then tessface UV's

Add ability to constrain knife cut angle to 0, 45, or 90 degrees
Notes:
- uses 'c' as toggle key in and out of angle snapping
(aka constrain) mode
- when in angle snapping mode, after first click, will
constrain line to nears 0, 45, or 90 degree line
- constraint is in screen space, not model space,
so will usually be used in axis aligned view

svn merge ^/trunk/blender -r43117:43124

Camera tracking: fixed snap cursor to selection operator when witness camera is active

Fix #29671: Issues with .mts video files

Video frame decoding used to leave packet reading cycle before frame
is fully decoded in cases frame is encoded by several packets.

Camera tracking: fixes in Link Empty to Track and Bundles to Mesh operators

- This operators always used to work with tracks for camera
- Properly set camera and object fields to Follow Track constraint
- TrackingObject.tracks is now pointing to actual list of tracks for
camera objects.

Object tracking: now Object Solver constraint can be converted to F-Curves

svn merge ^/trunk/blender -r43092:43092

de-duplicate wave modifier texture function.

cmon - copying large functions between files is obviously stupid, dont do it!

replace wave spesific enum with generic onces

edits to UV project modifier which make it easier to sync with bmesh.

bugfix - get_texture_coords() used by wave/warp/weight modifiers could initialize a verts coords from the 4th UV of a triangle face.

Correct use of your vs you're in py api docs

Added two stroke geometry modifiers:
- 2D Offset: Adds two-dimensional offsets to stroke backbone geometry.
- 2D Transform: Applies two-dimensional scaling and rotation to stroke backbone geometry.

derivative maps must take into account that texture scales can be negative

calculate factor before using MAX2 macro

derivative maps were not working correctly with UV scale (the texture setting size)