Blender Git Loki

extract method to compute current time per particle

GPencil: Rename "Clamp Layer" to "Mask Layer"

The old name was not meaning what this option does. Dtected while writting the manual.

faster temporary random number function

USD: abstracted the `ensure_xxx_writer` functions

The `ensure_xform_writer` and `ensure_data_writer` were very similar, and
in preparation of also creating hair and particle system writers I turned
them into one higher-order function that can be used for all those
purposes.

No functional changes.

improve interface for killing particles

Cloth: convert ClothSizing from LinkNodePair to vector<>

Merge branch 'master' into soc-2019-openxr

LANPR: fix readfile pointer address.

Fix T66126: Non-active Grease Pencil object stuck in draw mode

Now the modes are reset for grease pencil objects.

Differential Revision: https://developer.blender.org/D5138
Reviewers: @dfelinto

Avoid std::vector copy

GPencil: Rename Framebuffers and Textures

improve birth time handling in action interface

Tests: disable keymap hierarchy tests until they are fixed

This is not a critical issue, and it's important to have tests always passing.
Ref T65963.

Add wmSurface for non-Window offscreen VR session drawing

Adds a wmSurface type which acts as a container for non-Window (offscreen)
draw surfaces. Ideally wmWindow would of course also just do C-style
inheritance from wmSurface, but I guess they can co-exist too.
For the VR session a surface is created on Linux and passed to the
graphics binding to use.

Note this is not used on Windows yet, it still opens a window there.

Fix T65263: Outliner doesn't display selected object if parent not selected

This works for most situations, however if you have:

```
A
|-> B
|--> C
```

And only A and C are selected, C will be shown nested under A, instead
being by its side.

I still have to think on how to address these cases since they are
slightly misleading.

Related: T65263.

Reviewers: brecht

Differential Revision: https://developer.blender.org/D5134

cleanup handling of birth times in emitters

Fix T65956: node reroute no longer working in right click keymap

It's now always on shift + RMB drag, regardless of the keymap.

LANPR: intersection strokes are now generated in the first collection.

experimental explode action

Fix issues with masking tools and RMB/LMB keymaps

This makes things work more similar to 2.79 until there is a toolbar for
mask editing. Select & slide is now always on the left mouse button.

For the LMB keymap the context menu is on the right mouse button. For the
RMB keymap the select & move is on the right mouse button, which is almost
the same as select & slide but for historical reasons there is still a
distinction.

Differential Revision: https://developer.blender.org/D5070