Blender Git Loki

Disables VolumeManager functions that load grids directly from a filename.

These are legacy functions from the OpenVDB import node, but they don't
work with the new design any more because there is no specific Volume
instance to add the grids to.

Improved thread data handling for the OpenVDB Cycles node.

OpenVDB grid accessors, samplers, and ray intersectors must be stored per thread.
Previously this data was stored in a per-thread map in each grid. This causes problems
because the pthread_id keys can become invalid, and it also creates a lot of unused
accessors.

The patch switches thread data storage around, so that thread-local data is now passed
along KernelGlobals for every work task as needed (tasks only run in one thread).
This system is much more reliable and similar to other cases of thread-local data,
such as OSL shaders.

The patch also removes the virtual base class for "volumes", which might give a minor
performance improvement. If a generic volume type for Cycles is needed it can be
abstracted from scratch.

Removed the unused thread_id list in Cycles CPU tasks, which were only needed
for the now deprecated OpenVDB grid accessor lookup.

removed obsolete high res grid access function

added numObstacle grid in manta script and access functions

added missing grids to liquid/smoke grid import/export and also cleaned up scripts a bit

Move HMD options to User Preferences

Don't pass pixels through RNA, but Image pointers.

This makes setting preview images MUCH faster; passing pixels was
O(n^2) in the number of pixels. It also prevents us from having double
setter functions (floats/bytes).

Somewhat gracefully handle frame index out of bound error.

@mont29 We should look at how we handle this properly; I think that the
printf() causes too much console noise.

Merge branch 'master' into HMD_viewport

Conflicts:
source/blender/blenloader/intern/versioning_270.c

Fixed an error in the clearcoat where it appeared too bright for default
light sources (like directional lights)

new mantaflow functions which should replace some of the calls from smoke.c

formatting and comment clean up

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

Conflicts:
intern/cycles/blender/blender_python.cpp
intern/cycles/device/device_opencl.cpp
intern/cycles/kernel/kernel_accumulate.h
intern/cycles/kernel/kernel_path.h
intern/cycles/kernel/kernel_path_branched.h
intern/cycles/kernel/kernel_path_surface.h
intern/cycles/kernel/kernel_types.h
intern/cycles/kernel/svm/svm_displace.h

Cycles: Add lines that got removed by accident in recent merge

Use axes colors from custom-manipulators branch

Fix incorrect color of axes on "Reset to Default Theme"

Merge branch 'blender2.8' into custom-manipulators

Conflicts:
source/blender/blenloader/intern/versioning_270.c
source/blender/windowmanager/manipulators/intern/wm_manipulatormap.c

Don't draw helplines when using transform manipulators

Also removed unused transform flag.

Merge branch 'master' into cycles_split_kernel

Saving & loading via temporary file.

Also allowing for image & icon sizes to be different.