Blender Git Loki

Fix T37970: Node scale/rotate use incorrect pivor

note: added code to use real node center, but ifdef'd for now since it
doesnt work well with absolute snapping.

Node Editor: enable transform helper line

Fix T37920: BGE LibLoad failed for meshes with no materials

Main API: refactor naming, use BKE_main_ prefix and add main arg.

Code Cleanup: quiet unused define warning

Fix for crash with game engines LibLoad feature

Code Cleanup: cycles tips and long lines

Code Cleanup: unused defines & style

Cycles Volume Render: heterogeneous (textured) volumes support.

Volumes can now have textured colors and density. There is a Volume Sampling
panel in the Render properties with these settings:

* Step size: distance between volume shader samples when rendering the volume.
Lower values give more accurate and detailed results but also increased render
time.
* Max steps: maximum number of steps through the volume before giving up, to
protect from extremely long render times with big objects or small step sizes.

This is much more compute intensive than homogeneous volume, so when you are not
using a texture you should enable the Homogeneous Volume option in the material
or world for faster rendering.

One important missing feature is that Generated texture coordinates are not yet
working in volumes, and they are the default coordinates for nearly all texture
nodes. So until that works you need to plug in object texture coordinates or a
world space position.

This is work by "storm", Stuart Broadfoot, Thomas Dinges and myself.

Fix cycles volume emission not working with OSL.

Code refactor: better distinguish scatter and absorption for volume integration.

Buildbot SCons MSVC 2013 packing also requires something extra

MSVC 2013 buildbot changes

Added option to have a seperate environment for executing nvcc
This can be used to compiler cuda kernels with Visual Studio 2010 while
the rest of blender is compiled with MSVC 12.0 / 2013

Text3d: add select all operator

also add Edit menu for 3d text and move cut/copy/paste there.

correction to previous commit

Fix crash moving the cursor after deleting 3d text

Text3d: add assert's to check the selection and length are valid

Fix movie output when using render border

Reported by @plasmasolutions in IRC.

Follow up to the previous commit: vfont_get_data is to use the same RW lock