Blender Git Loki

Changed mesh sample definition to use 3 vertex weights instead of a
face index. This is easier to sample uniformly and avoids the need for
tesselation for evaluating.

Normalize the normal vector after sample eval to account for
interpolation.

Added a bool return to the eval function to give feedback on invalid
samples.

Added a basic RNA definition for the mesh sampling system.

Eval function to get a location and normal vector from mesh samples.

Usable random distribution algorithm.

Does not include area weighting yet.

Skeleton code for sampling meshes.

Conflicts:
source/blender/blenkernel/CMakeLists.txt

Merge branch 'master' into cycles_memory_experiments

Merge branch 'master' into gooseberry

Merge branch 'master' into alembic

Merge branch 'master' into temp_viewport_fx_merge

Conflicts:
source/blender/editors/gpencil/drawgpencil.c

Merge branch 'alembic' into gooseberry

Fix for stupid MSVC, does not allow const expression as array size.

Revert 0d3da1343c16e1be6a6e6b78b77cf8b3354afe07

Disabling group -> duplicator dependencies would in theory make caches
more attractive because the invisible objects don't have to be updated
just because of the group.

However, the viewport and render starts to behave unpredictably without
these updates, because the dupli cache relies in many ways on the
objects it is supposed to override.

Merge branch 'master' into wiggly-widgets

fix: passive vertexgroup was ignored

add GPUxBatch size query

How much VRAM does our draw data use? Or process memory for client-side
data.

Note: right now data is stored in *both* places, but the code will be
smarter about storage in the future.

Merge branch 'master' into gooseberry

Some minor fixes needed to build alembic with install_deps.sh.

Merge branch 'asset-experiments' into asset-engine