Blender Git Loki

Camera tracking: revert changes made for texture buffer frame drawing.
Will be applied as another cleaned-up patch.

Camera tracking: if there's no image for current frame display
default grid and allow to interact with tracks for operators
which doesn't require image.

Camera tracking: support of tripod motion solving

Expose option into interface to use modal solver which currently
supports only tripod motion.

This solver requires two tracks at least to reconstruct motion.
Using more tracks aren't improving solution in general, just adds
instability into solution and slows down things a lot.

Refirement of camera intrinsics is supported by this solver.

To use this solver just activate "Tripod Motion" checkbox in
solver panel.

libmv: bundle new upstream version of libmv from own branch

Added modal solver module which is needed for tripod solving.
For details of this solver read changelog of libmv.

Silencing some compiler warnings on Windows

argv is defined as "char *" here so that unicode magic can happen causing
problems later on when "const char**" is expected instead. While this fix is
redundant on other platforms, it's a lot less confusing than some of the
alternative fixes.

Merging r44227 through r45619 from trunk into soc-2011-tomato

Merged changes in the trunk up to revision 45619.

don't constrain single edge extrude, annoying for retopo
see: https://www.youtube.com/watch?v=5AzRpFfWR6k

request from ZanQdo, VenomGFX & Jonathan Williams.

For previous functionality Z, Shift+Z.

code cleanup: comment (almost) all members of KeyBlock & Key.

code cleanup: when extending name length Key.elemstr was incorrectly extended to 64 chars, added comment and set back to original length.

style cleanup: key.c

Grmph, BLF_(p)gettext were not protected against NULL message/context, was causing a sigsev with latest own commits (in File menu)!

i18n: "labels" of multi-section enums need to be marked for gettext (N_()), as they are not available from python...

Fixed (or partly fixed) various missing UI translations, mainly with some specific ops invocations (popup menus�?�), and (to some extent) with the undo/redo stuff.

Scons:
* Compile fix for r45609, pthreads include was missing.

Fix #30376: cycles ignores camera override from sequencer.

Fix #30858: UI losing buttons at some random moment after using Blender for a
while. This may not fix all cases but should at least solve the issue when
rendering with cycles.

The cause was a race condition on C->data.recursion, with multiple threads
accessing context at the same time. Cycles itself does not access context
from the render thread, but the bpy api would do a context update for any
callback in case e.g. a new file got loaded. Disabled that now in non-main
threads.

The ideal solution would be to not allow any context access at all from threads
but that's not so simple to implement, especially not this close to release.

remove duplicate notifier event

Do not hide (gray out) lens/lock to object/lock to cursor options in Quad views (View panel)...

fix [#30728] Align View Restricts Further View Changes

turntable rotation can get into gimbal lock.