Blender Git Loki

CMake: Add option to link against system-wide Gflags library

It is disabled by default, so should not affect existing configurations.

Main benefits of this goes as:

- Linux distros can use that to avoid libraries duplication and link
blender package against gflags package from the system.

- It it easier to test whether Blender works with updated version of
Gflags prior to re-bundling the library.

Cleanup: use id-property access macros

Depsgraph: Move DAG_get_object function

BKE_depsgraph.h will be deprecated eventually, so moving it to DEG_depsgraph_query.h

Draw Manager: don't assign bool from flags

Some MSVC versions don't support this.

Gawain: fix for building empty element list

Rename: Alembic job struct sl > scene_layer

Draw Manager: edit-mode 3d text drawing

Draw cursor and selection, also support for fast-display.

Include the set in the depsgraph objects iterator

Pending: Include the set in the rna depsgraph.objects

In fact it would be nice to unify them both. However this will likely
change once Depsgraph incorporate this iterator, so I'm not sure we
should bother with that.

Related to T51203

Docs: diagram for reflect_v3_v3v3

Merge branch 'master' into 28

Store edit-font select-box length

A little awkward to calculate when drawing.

D2607: Switch eye dropper to use linear color space internally

This switches the internal color representation of the eye dropper from display space to linear. Any time a linear color is requested and the color is picked from a linear object, the result is now precise to the bit as the color gets patched through directly. Color space conversion now only happens when a color is picked from non-linear display space objects or when the color is requested to be returned in non-linear space.

In addition, this patch changes the DifferenceMatte node to interpret a tolerance of 0.0 to accept colors that are identical bit by bit, as apposed to simply refusing all colors.

D2608: Allow HDR picking from Compositor background
Replaced some STREQ(snode->tree_idname, ...) calls with ED_node_is_*() calls for improved readability, fixed one case where the STREQ was used the wrong way

Cleanup: redundant struct qualifier & long lines

Cleanup: rename & change order of declaration

Curve: draw curve/surface/text geometry

Note that displists will be removed, but this wont be hard to replace.

Signed-off-by: Campbell Barton <ideasman42@gmail.com>

Fix Surface Deform not unbinding if target is removed

RNA: depsgraph.objects

Iterator to return the objects evaluated from depsgraph. The
iterator itself will change once CoW is implemented.

This reproduces the behaviour of DEG_OBJECT_ITER but for Python.

RNA: bpy.context.depsgraph

Implement DAG_get_scene_layer

Even though this will have to change once we get workspaces, we will
still have a depsgraph for the Scene.

This is required for the upcoming depsgraph.objects RNA iterator.