Blender Git Loki

Fix no active HMD when opening file that was saved during HMD session

Several minor corrections

Make "Use Device Rotation" toggle work again

When this is disabled we just manually calculate the camera offsets. Actually I have no idea if math is correct but it doesn't seem totally wrong at least :P Don't have an HMD to test right now.

Layer collection nesting (DNA/RNA)

Layer collection initial RNA

new/remove/active

BKE_scene_ layer/collection API touch ups

Allow zooming/panning while HMD view is in camera perspective

Merge branch 'master' into id_newid_optional

Fix compiling with Cycles enabled

Brings back some code that was removed in 17beb573563c8a4 to avoid naming conflicts. Now did some renaming to avoid these.

Merge branch 'blender2.8' into layers

Use enum instead of preprocessor defines

Add/use DNA_DEPRECATED_LAYERS

Using DNA_DEPRECATED resulted in thousands of warnings, so rather not use this. These warnings can still be handy though to check for usage of deprecated struct members as we go, so this quick way to toggle them could be handy. Note that this should eventually be replaced by DNA_DEPRECATED once stuff is actually deprecated.

Initial RNA for scene layers

Next will be the collections, and then the other missing props of rna_def_scene_layer

Note: it would be nice to have a way to tag rna properties asa
deprecated. For example, scene.engine can still be valid (and mapped to
scene.layers.active.engine), but it would be nice to indicate the addon
writers of the new API.

Fixup for versioning: name initial layer ... "Layer"

Cleanup id->newid usage, initial work.

This aims at always ensuring that ID.newid (and relevant LIB_TAG_NEW)
stay in clean (i.e. cleared) state by default.

To achieve this, instead of clearing after all id copy call (would be
horribly noisy, and bad for performances), we try to completely remove
the setting of id->newid by default when copying a new ID.

This implies that areas actually needing that info (mainly, object editing
area (make single user...) and make local area) have to ensure they set
it themselves as needed.

This is far from simple change, many complex code paths to consider, so
will need some serious testing. :/

Merge branch 'blender2.8' into layer-manager

Conflicts:
source/blender/depsgraph/intern/builder/deg_builder_nodes.cc
source/blender/depsgraph/intern/builder/deg_builder_relations.cc
source/blender/editors/include/BIF_glutil.h
source/blender/editors/interface/resources.c
source/blender/editors/screen/glutil.c

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

Conflicts:
intern/cycles/blender/blender_session.cpp

Cycles: Enable Flush-to-zero for denormals on Windows

Cycles: Fix Denoising Pass detection when loading Multilayer EXRs

Cycles Denoising: Add standalone animation denoising call to the Cycles Python API

Previously, a build of Cycles Standalone was needed for animation denoising.
Now, it is possible to call it from Python Scripts in Blender or directly from the command line (through --python-expr).