Blender Git Loki

Cleanup: Rename outliner enum

Outliner: Make deleting collections from "All Collections" mode work

Outliner: Highlight active layer collection in "All Collections" mode

Cleanup: Add outliner_utils.c, move functions into it

clean up GL / GPU #includes

remove GPU_basic_shader calls from wm_gesture

Gestures are drawn with specific built-in shaders now.

remove unused code from interface_icons

No longer depends on basic shader API

remove unused code from uvedit_draw

Keep USE_EDBM_LOOPTRIS code paths, remove not-USE_EDBM_LOOPTRIS paths.

Discussed with @LucaRood in IRC since he worked on this file recently.

Outliner: Delete all selected collections, not just active one

There were some issues with how we store outliner tree elements:
Apparently the only removable elements have been data-blocks so far.
When recreating the TreeElements, their TreeStoreElem instances were
mainly identified by their ID pointer. However non-data-blocks mostly
depend on an index. For collections, such an index isn't a reliable
measure though if we want to allow removing items. Depending on it for
identifying the TreeStoreElem instance would cause some quite noticeable
glitches (wrong highlights, two elements sharing highlight, etc).

For now I've solved that by actually removing the TreeStoreElem that
represents the removed element. A little limitation of this is that
after undoing the removal, some information might get lost, like
flags to store selection, or opened/closed state.
A better solution that would also fix this issue would be having a real
unique identifier for each non-data-block element, like an idname or even
its data-pointer. Not sure if we can get those to work reliable with
file read/write though, would have to investigate...

Also added a general Outliner tree traversal utility.

OpenGL: no more display lists

Part of the OpenGL core profile upgrade (T49165)

Use the Batch drawing API (GPU_batch.h) when you want do draw something multiple times.

Cleanup: update copyright and Blender description

Cycles: Fix division by zero in volume code which was producing -nan

Fix Dopesheet and Curve editor to use new bases in SceneLayer instead of old base.

(see D2538)

Thanks to dfelinto for his support.

Alembic import: replaced GHash * with std::map<>

The char* that were returned by Alembic were unstable, as they pointed to
Alembic-managed memory, which Alembic reuses for different strings. As a
result, the pointers were unsuitable for hash keys. Copying the strings
into std::string instances solves this.

Alembic: more lenient check on absence of sheer & homogeneous scaling

Checking precise values of floats is not a good idea.

Draw Manager: Fix ortho grid in front of overlays.

Edit Mesh overlays: fix half cut vertices.

Artifacts still remained when 2 vertices were linedup in orthographic mode or with very acute vertex angles.

This commit fix that by adding even more geometry.

Edit Mesh overlays: added looses edges and verts as triangle.

We loose a bit of memory for (more?) performance.

Merge remote-tracking branch 'origin/blender2.8' into workspaces

Merge branch 'writefile_rework' into id_override_static