Blender Git Loki

Merge remote-tracking branch 'origin/master' into lanpr-under-gp

LineArt: Fix transparency mask lost in angle splitting process

Fix T82495: assert with cast modifier in edit-mode

LineArt: "Match" checkbox put on top of mask bits.

Cleanup: imbuf callback naming

Use `is_a` & `is_a_filepath` in callback names.

Fix T82520: error building freestyle with Python3.8

Caused by 16732def37c5a66f3ea28dbe247b09cc6bca6677,
This is a 'Py_ssize_t' in Python 3.8,
replace with zero as this works in both 3.7 and 3.8.

Cleanup: clang-format

Cleanup: General cleanup of Outliner Blender File display mode building

* Turn functions into member functions (makes API for a type more obvious &
local, allows implicitly sharing data through member variables, enables order
independend definition of functions, allows more natural language for
function names because of the obvious context).
* Prefer references over pointers for passing by reference (makes clear that
NULL is not a valid value and that the current scope is not the owner).
* Reduce indentation levels, use `continue` in loops to ensure preconditions
are met.
* Add asserts for sanity checks.

Fix T81651, exact boolean modifier incorrect if operand hidden.

The code was trying to ignore hidden geometry when doing boolean,
which is correct when used as a tool, but not when a modifier.
Added a "keep_hidden" argument to bmesh_boolean to distinguish the
two cases.
Also fixed a bug when the tool is used with hidden geometry that
is attached to unhidden geometry that is deleted by the operation.

Merge branch 'master' into xr-actions-D9124

Fix T81651, exact boolean modifier incorrect if operand hidden.

The code was trying to ignore hidden geometry when doing boolean,
which is correct when used as a tool, but not when a modifier.
Added a "keep_hidden" argument to bmesh_boolean to distinguish the
two cases.
Also fixed a bug when the tool is used with hidden geometry that
is attached to unhidden geometry that is deleted by the operation.

Cleanup: importer: const, range-based for-loops, etc.

Cleanup: exporter: const, clang-tidy.

Cleanup: exporter: use range-based for loops.

Merge branch 'master' into soc-2020-io-performance

UI Code Quality: Convert Outliner Blender File mode to new tree buiding design

See https://developer.blender.org/D9499.

Also:
* Add `space_outliner/tree/common.cc` for functions shared between display
modes.
* Had to add a cast to `ListBaseWrapper` to make it work with ID lists.
* Cleanup: Remove internal `Tree` alias for `ListBase`. That was more confusing
than helpful.

Cleanup: Clang-tidy, readability-else-after-return

Cleanup: Clang-tidy, readability-non-const-parameter.

Cleanup: NULL to nullptr.

Merge new boolean fix from blender-v2.91-release.