Blender Git Loki

Revert "Proxy: Construct pchan hash when syncing armature proxy"

This reverts commit 9b5a32cbfb8a8565202bdccd232c53f98b62eeec.

Apparently it is possible to have other thread mocking around with the hash.

Needs deeper investigation, for the time being reverting to prevent crashes.

Fix menu inconsistencies

This commit fixes two issues:

- UV/Image editor uvs menu did not match the 3D View's which was changed in rB2b240b043078
- Circle select tool was missing in particle edit mode

Reviewers: Severin
Differential Revision: https://developer.blender.org/D2329

Cleanup: More explicit parentheses

Avoid interface ID remapping when freeing the whole database

This makes heavy scenes to be freed almost instantly (so now
quadbot scene takes only 0.06sec to free),

Avoid driver target remapping when freeing the whole database

Added BKE_libblock_free_data_ex() which takes special do_id_user
argument which basically indicates whether main database was already
taken care about not having "dead" pointers.

Gives about 40% speedup of main database free with quadbot scene
(3.4sec vs. 5.4 sec on quite powerful desktop).

Fix T50022: "Mirror" in Dopesheet Crashes Blender

Just fixing crash itself. Actually operator shouldn't run in most editors (not in dopesheet either I guess), but don't want to spend time on that right now.

Implement grouped undo option for operators

This option makes an operator to not push a task to the undo stack if the previous stored elemen is the same operator or part of the same undo group.

The main usage is for animation, so you can change frames to inspect the
poses, and revert the previous pose without having to roll back tons of
"change frame" operator, or even see the undo stack full.

This complements rB13ee9b8e
Design with help by Sergey Sharybin.

Reviewers: sergey, mont29

Reviewed By: mont29, sergey

Subscribers: pyc0d3r, hjalti, Severin, lowercase, brecht, monio, aligorith, hadrien, jbakker

Differential Revision: https://developer.blender.org/D2330

Depsgraph: Fix typo in previous optimization commit

Was a residue from another experiment, caused infinite loop when
reporting dependency cycles.

Atomics: Add some extra utility functions

Also fixed semantic of fetch-and-add in assembler implementation,
it seemed to not match the naming.

Atomics: Make naming more obvious about which value is being returned

moved clean up and copy functions to pre/post step

added pre and post step functions

Implemented the specular transmission part of the thin surface
approximation.

blender 2.8: OpenGL immediate mode: action_draw

Updated action_draw to use imm mode.

Reviewers: merwin

Subscribers: LazyDodo

Differential Revision: https://developer.blender.org/D2351

BMesh: remove redundant link-list manipulation

No need to track previous edge in vert-separate cleanup

blender 2.8: Opengl: UI_draw_roundbox

all is in the title too..

Reviewers: merwin

Reviewed By: merwin

Subscribers: Blendify, Severin

Tags: #bf_blender_2.8, #opengl_gfx

Maniphest Tasks: T49043

Differential Revision: https://developer.blender.org/D2337

BMesh: match BM_vert_find_first_loop with iterator logic

Use changes from previous commit for BM_vert_find_first_loop.

BMesh: avoid extra calls per faces-of-vert iterator

- `bmesh_radial_faceloop_find_first` & `bmesh_disk_faceedge_find_first`
can be replaced with a single call to a new function:
`bmesh_disk_faceloop_find_first`

- `bmesh_disk_faceedge_find_first` called `bmesh_radial_facevert_check`
which isn't needed, since either the current or next loop in the
cycle is attached to the edge we're looking for.

BMesh: use const for BM_vert_face_check

BMesh: minor improvement to BM_vert_face_check

No need to perform edge-of-vert then loop-of-edge check.

Any vertex that has an edge with a face will be connected to a face.