Blender Git Loki

brought back some unused variables removed from previous commit, commented out, in case need their values later

fix [#28401] OpenGL render option disables border clipping

== Sequencer / proxies ==

fixed crash pointed out by blendervse:
100%-proxy could lead to a segfault under certain conditions.

Missed notifier was found when looking at #28393

armature object animation bug fix.

implement select nth, separate loose parts, and a few bug fixes

This code is from Andrew Wiggen (ender79) and reviewed by me.

His comments:

Implements some tools that were marked TODO:
- select nth
- separate loose parts

And also fixes a few bugs;
- extrude and move on normals causes faces to disappear until the move starts
- hiding verts/edges/faces does not deselect them
- deleting a selection sometimes deletes too much (e.g. a solid cube and a wire cube build of only edges, join them on a single edge, select only the faces of the solid cube and delete, some of the deselected edges from the wire cube were also being deleted)

Merge with trunk r39750

Dynamic Paint:
* Added option to preview surface wetmap instead of paint.
* Changed default paint color to blue for better visibility.
* Fix: Random sized particles didn't work anymore.
* Fix: Particle initial velocity issues when using canvas substeps and a particle brush.

== Sequencer ==

This patch adds:

* support for proxy building again (missing feature from Blender 2.49)
additionally to the way, Blender 2.49 worked, you can select several
strips at once and make Blender build proxies in the background (using
the job system)
Also a new thing: movie proxies are now build into AVI files, and
the proxy system is moved into ImBuf-library, so that other parts
of blender can also benefit from it.

* Timecode support: to fix seeking issues with files, that have
a) varying frame rates
b) very large GOP lengths
c) are broken inbetween
d) use different time code tracks

the proxy builder can now also build timecode indices, which are
used (optionally) for seeking.

For the first time, it is possible, to do frame exact seeking on
all file types.

* Support for different video-streams in one video file (can be
selected in sequencer, other parts of blender can also use it,
but UI has to be added accordingly)

* IMPORTANT: this patch *requires* ffmpeg 0.7 or newer, since
older versions don't support the pkt_pts field, that is essential
for building timecode indices.

Windows and Mac libs are already updated, Linux-users have to build
their own ffmpeg verions until distros keep up.

* Removing mocap GSoC (is an addon already).
* Fixing ffmpeg-0.8 errors.
* Fixing Ketsji paths.
* Removing DoSound from BGE.
* Fixing audio scene update to use only current scene objects.

Cycles:
* Add alpha pass output, to use set Transparent option in Film panel.
* Add Holdout closure (OSL terminology), this is like the Sky option in the
internal renderer, objects with this closure show the background / zero
alpha.
* Add option to use Gaussian instead of Box pixel filter in the UI.
* Remove camera response curves for now, they don't really belong here in
the pipeline, should be moved to compositor.

* Output full float values for rendering now, previously was only byte precision.
* Add a patch from Thomas to get a preview passes option, but still disabled
because it isn't quite working right yet.
* CUDA: don't compile shader graph evaluation inline.
* Convert tabs to spaces in python files.

Assorted comment clarification in response to code review notes

RNA_property_as_string now escapes the string (so operator redo can include strings with ", n etc), also fixed a bug in string escape length limit.

- use static vars and functions where possible.
- use NULL rather than 0 when used as pointers.

check for unlikely error when freeing a library blend file from the BGE.

remove implicit casts to doubles in the noise code, also use floating point math functions rather then double since the noise functions range is already limited by casting to ints in many places.
- gives a very small speedup.

fix [#28388] Clouds at high depth give artifacts.
http://projects.blender.org/tracker/download.php/9/498/28388/17476/screen_bad.png

Do not show confirm message when creating text block from menu.

fix [#28373] "Lock camera to view" doew not work with 3D-mouse

Fix [#28341] writing }(alt+n) in text editor creates a new file

Change hotkey for new textblock to Ctrl-N.