Blender Git Loki

Merge branch 'master' into soc-2016-pbvh-painting

small fix for compounds, new collision suppression is disabled for them now

it caused wrong behavior - one shard always fell off unintendedly.

Update submodules.

Curves: Some tweaks to the work that was concluded during GSoC 2016

If this has not yet been committed:

- Fixed some bugs with the fillet and chamfer operators (filleting and chamfering first and last handles).
- Fixed user interaction with fillet and chamfer.

BGE: Fix T50098: Crash when useding ImageMirror

The crash was caused by a missing m_sync initialisation in the second
ImageRender constructor.

Fix World Space Shading option influence on Fresnel node for BI + cleanup

Merge remote-tracking branch 'origin/master' into soc-2016-uv_tools

Cycles: Fix uninitialized variable issue after recent changes

Some cleanup and refactoring.

Revert initial hack to get a new overridable RNA prop flag.

Now that we have some new free ones...

Final bits to get first (very raw, limited and experimental) override working.

Mostly code using override data to selectively update a copy of linked one
with local data.

As said, still totally hackish and experimental, but it works - you can
create overrides of linked Objects, and override their position, yeha! :P

Moar WIP: add operator to make override of linked object.

Mostly nasty testing code, only overriding location of object for now.
And of course, we are still missing bits in read/write code to actually
do the override.

Also, add some minimal exposure of override in RNA, here again, most to
be done still.

More WIP: add basic new BKE and RNA override API, update DNA structs.

Still much to do to even get a first dead simple working prototype, not
doing anything yet (except compiling and not crashing when ran :P ).

Some initial, WIP DNA/RNA/readwrite code for static ID override.

Quite obviously totally useless (and harmless) currently, compiles but
does nothing.

Some changes to RNA property/struct comparison.

Could very easily get into infinite loop when comparing Pointer
properties... And in any case, comparing ID pointer should be enough, no
need to dive into all ID properties!

Quick and dirty hack to get overridable RNA prop flag.

To be reverted once D2400 is committed.

Fresnel node support for Blender Internal Render

Cycles: Move object culling helper to own files

This is a stand-alone logic, which becomes quite comprehensive now.

Cycles: Fix indendation

Cycles: Consider GGX/Beckmann/Ashikhmin of 0 roughness a singular ray

This matches behavior of Multiscatter GGX and could become handy later on
when/if we decide it would be beneficial to replace on closure with another.

Reviewers: lukasstockner97, brecht

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D2413