Blender Git Loki

BLI_math: quat_to_axis_angle was zeroing the axis

When there was no rotation the axis was zerod,
while not exactly a bug, it means changing the angle does nothing
and all axis-angle values are initialized with Y=1,
use this convention when resetting the axis too.

Merge branch 'blender2.7'

T61971: Compilation Displacement/Background Kernel

Displacement and Background kernels are selectively used, but always compiled. This patch will not compile these kernels when they are not needed.

Displacement kernel is only used for true displacement.
Background kernel is only used when there is a (Cycles)Light of type `LIGHT_BACKGROUND`.

Reviewed By: brecht, #cycles

Tags: #cycles

Maniphest Tasks: T61971

Differential Revision: https://developer.blender.org/D4412

Bevel mod: cleanup flags and extra data.

Removed a clnors field unneeded after a recent refactor.
Finished deprecation of flags that haven't been used since pre-bmesh.

Units: GP Canvas Offset

Use PROP_TRANSLATION for this to make it correctly display units in the UI.

T61576: Do Not (Re-)Compile OpenCL kernels

The goal of this patch is to have limit the number of times
kernels needs to be compiled and are reused as kernels with
different compile directives can lead to identical same
binaries.

The implementation does this by stripping the compile directives.
and reshuffling kernels so the output is more likely to be the
same.

We focussed on the kernels where it was easy to detect and maintain
(bundle, bake, displace, do_volume and background). More optimizations
could be done but they are probably less obvious.

Merged the data_init and state_buffer_size kernels to split_bundle.

This patch will also remove empty kernels for do_volume and bake
when their features are not enabled.

When using the benchmark files there are less background, bake and
do_volume kernels compiled.

Fix: T61576, T61501, T61466

Reviewed By: brecht, #cycles

Differential Revision: https://developer.blender.org/D4390

Cleanup: Spelling in comment

Depsgraph: Make parameters exit dependent on ID properties

Missed last commit

Transform: fix rotate redo behavior

- Add XYZ option.
- Orientation now works as expected.

Now a redo for rotation works logically,
setting the axis to Z & the orientation to view.

Resolves T57205

Transform: don't set the user constraint when it's not set

The orientation for the redo panel would be set even when not used,
add an 'unset' orientation which defaults to global.

GP: Rename "Dualtone" to "Duotone"

Fix indentation issue introduced in rB54ffc4e19dc4

Fix T61965: Crash edit-mesh drawing w/ hidden faces

BMesh: utility functions for visible element access

Needed for drawing code which skips hidden elements.

UI: disable split layout for cursor transform

There isn't much horizontal space in the side-bar,
also object transform which is very similar doesn't use a split layout.

Cleanup: indentation, trailing space

Cleanup: assign rotation_mode to a variable

Don't access multiple times per draw.

Grease Pencil naming: Use clear names for depth ordering

- Add a new panel to differentiate between viewport display and stroke options
- Use clearer naming for depth ordering and stroke thickness properties

Reviewers: antoniov
Differential Revision: https://developer.blender.org/D4405

I18n: enable Abkhaz in Blender.