Blender Git Loki

Fix T47812: GPU renders have warmer colors than CPU renders

Seems was a mistake in f2c54df, volume attributes are not supposed to
have repeated texture type.

Removed particle sync code from Cycles.

Note that this only removes the actual dependencies of Cycles on the
particle code in Blender, but not the internal "particle" definition
or the curve type handling inside Cycles. These structures may be in need
of some improvement themselves, but that is out of scope here.

Update bundled openjpeg from 1.5.0 to 1.5.2

Solves following issues:

- Quite reasonable amount of paranoid warnings were solved by an upstream
- Upstream seems to have all fixes needed for FreeBSD and OSX already
- Brings all fixes and such from upstream

Fix T47891: Edges throw shadow in edit mode

Fix T48086: Smart UV Project fails w/ small faces

Epsilon for small faces was too large.

Also suppress exception when all faces area are below the epsilon.

Minor optimization for scanfill

Replace angle with with cosine calculation.

Fix image-space mask-transform crash w/o an image

Cleanup: rename cos-angle to match BLI_math

Minor optimization for limited-dissolve

Use dot product instead of angle.

Fix crash in rB37493fb9f - there is no guaranty CTX_wm_foo() will return a valid pointer!

Cleanup unused header includes from previous commit.

Cleanup: move operators & related code of files & append/link to relevant dedicated source files.

This commit adds a new `wm_files_link.c` which contains everything related to append/link code,
moved from `wm_operators.c` (rather small currently, but will expand quite a bit with future reload & asset works).

It also moves all load/save .bland files (and related userpref/startup stuff) from `wm_operators.c`
to `wm_files.c` (some helper funcs were already there).

This also makes `wm_operators.c` significantly lighter.

Fix T48198: Missing plus sign to open the tool shelf in text editor

Did not happen when using screen layout saved in default startup.blend

Toggle to standard cursor when opening menus/popups

Cursor is now set to standard arrow-cursor when opening menu, and reset to previous one when closing it. Previously it just stayed as it was before, e.g. the edit mode cross-cursor stayed active even if a menu was opened.

Fixes T48192.

Cycles: Improvements and fixes for the resumable render

- Fix wrong current sample reported in the log
- Also includes fix for progressive refine log
- Explicitly print to the stdout that resumable render is enabled
- Print error message and abort when passing wrong values for the
resumable render. Never waste someone's compute power for wrong
render!

Fixes T48185: Cycles resumable num chunks breaks sample counter

Fix T48193: Incorrect keyframe_insert docs

Minor edits to last commit

Avoid redundant tests

Fix T47998: Limited dissolve fails /w holes

Holes with flat surfaces could have their edges dissolved causing degenerate faces.
Now check that collapsing a vertices isn't creating self-overlapping faces.

Cleanup: pass event args as const

Cycles microdisplacement: add max subdivision setting

This is to prevent situations such as when the camera gets very close to a mesh
and causes it to be tessellated into an excessive amount of micropolygons. In
REYES this is known as the eye-splits problem.

Reviewed By: brecht

Differential Revision: https://developer.blender.org/D1922