Blender Git Loki

Merge remote-tracking branch 'origin/master' into soc-2019-npr

Added LANPR chain conversion funcitons. Now LANPR to GP is able to run.

Cleanup: use const argument, r_ prefix return arg

3D View: Support light probe data clipping

temporally add draw lib to gpencil modifier for lanpr

Adding lanpr to grease pencil strokes modifier.

Fix industry compat keymap transform gizmo plane constraint

Modifier keys were disabled, removing support for shift-clicking
on the transform gizmo to constrain to the plane.

The gizmo keymap matches the default, no need to re-define it.

Gizmo: activate some gizmos on drag instead of press

Use drag-only keyamp to adjust gizmos which use drag motion
to change a value. By default gizmos still activate on press.

This allows for left click select to be used with transform
without the gizmos getting in the way.

Even though this isn't necessary for right click select
it allows click events to pass through and be used by tools
which can be useful.

Resolves T63996

WM: use different drag thresholds for mouse/tablet events

Now a small threshold is used for mouse input,
avoiding delay when gizmos are activated on drag.

Tablet input threshold remains unchanged since
it's easier to make small movements when using a tablet.

A larger threshold for non-cursor input is now used (typically keyboard)
which improves usability when the "Pie Menu on Drag" key-map preference.

Cleanup: move click/drag events to functions

Simplifies future changes to dragging checks and avoids
each check for drag using slightly different logic.

Cleanup: rename callbacks to match the struct member name

Outliner: Add range select

Adds range select to outliner_activate.
Range select is based on the active element and the clicked element.
If no active element is visible, report an error

Outliner: Utils function is element visible

Merge remote-tracking branch 'origin/master' into soc-2019-npr

Remove obsolete memory pool

Merge branch 'master' into soc-2019-outliner

Outliner: Add range select to keymap

Changes keymap for outliner.item_activate
ctrl: extend
shift: range
alt: recursive
ctrl+alt: recursive extend

Support system installed OpenXR SDK

Adds OPENXR_USE_BUNDLED_SRC so that if disabled, CMake tries to find
the SDK headers and libraries in system paths or in specified root
directory.

I guess this is the way we'd want to do this in master. However for
people testing the branch the bundled sources are much more convenient
(should work out of the box, no need to compile the SDK manually).

GPencil: Cleanup - Remove storage Grid matrix and replace with local variable

Now the matrix is copied when creating shading group and don't need to be saved in storage.

Merge branch 'master' into soc-2019-openxr