Blender Git Loki

UI: small tweak to tooltips for enum menus, it wasn't very clear which
description was for the property and which for the item.

Fix #29321: Video does not display, gets frozen or flickers

Unfortunately, error was caused by own attempt to deal with some kind of broken
videos when was investigating crashes in sequencer. Issue discovered that time
was related on values stored in timecode index and using them as signed data type
later.

Trying to use unsigned value here leads to signed/unsigned check failures.

Prefer just to pre-process that kind of videos i've been trying to deal with
rather than making more global changes during BCON3.

error with recent commit, thanks Ender79 for finding.

Updated stubs so blenderplayer is compiling again.

speedup for editmesh tesselation (approx 4.4x speedup in optimized builds),
this is important because it runs while transforming the mesh in editmode.

also made this code a bit more efficient.

Camera: some code refactoring, use an intermediate CameraParams struct instead
of long list of variables everywhere. Intention is to also let 3d view use this
eventually, instead of duplicating code.

Cycles: try to avoid NaN pixels with oren nayar. Also small cmake code cleanup.

Re-commit reverted changes from rev41394. was accidentally
reverted when trunk was prepared for tomato merge.

Camera tracking: multiply all camera matrices by inverted first reconstructed camera matrix

This makes blender camera:
- Be located on exactly the same position at first frame after applying
Camera Solver constraint
- Be looking in exactly the same direction it used to look before
applying Camera Solver constraint

Before this patch in most of cases camera used to change direction
after applying solved data on it which can be confusing in some cases.

Currently solved files wouldn't be broken, but after solve scene should
be re-oriented. Not big deal because re-solving isn't so safe for scene
orientation anyway.

Rename bgpic.add() to bgpic.new() to correspond others collections like
render layers, vertices groups and so.
Also added bgpig.remove() function to remove specified picture.

mesh_recalcTesselation speedup, ski[ check for 3-4 sided faces - dont use scanfill in these cases.
overall 6x speedup on an optized build (Suzanne subsurf level 5, applied)

fix [#28676] Tris to Quads: "Max Angle" is not interpreted correctly

svn merge ^/trunk/blender -r41954:41961

make RNA_def_float_rotation usable for single value rotations (not arrays).

Moving spanish code from es_ES to es for now (as the best spanish translation is es.po...).

Else, gettext first search into es_ES (and es_MX it seems???), before using content from es, which currently is not good.

Set floor fails to make camera be in positive Z half-space if it was parented to other object.

edits to 41957, main changes to render layer removal.
- report an error if the layer can't be removed
- check the render layer is in the list before removing

Added methods new and remove to scene.render.layers, so now render layers
can be created and removed from scripts.

exclude addons_contrib for release builds for scons/osx too

svn merge ^/trunk/blender -r41939:41954