Blender Git Loki

Fix T55320: Sculpt Mode with dyntopo and smooth shading drawing bug.

We have to discard the batch in smooth case, because we are modifying
the index buffer (flat shading don't need it, only changes vertex buffer
on redraw, which is safe).

Many thanks to @fclem for his help on debuging/understanding what was
wrong here!

Fix memory leak when duplicating particles

Depsgraph: Tag relations for update when particle dupli-collection changes

Cleanup: comment

Free crash when freeing object caches from duplicator

Revert "Turned off clang warnings in third party includes."

This reverts commit d53093953f8f3b58600cb19020ecbe0b5f254b52.

Merge branch 'master' into blender2.8

PyAPI: add ImBuf.copy

DD348 by @kilon w/ edits.

PyAPI: move deep-copy args check to py_capi_utils

Cleanup: style, pep8

Cleanup: style

Cycles: Fix wrong row count for World MIS CDF calculation

Turned off clang warnings in third party includes.

The latest clang compiler (at least the one in Xcode 9.4.1) warns about the register keyword and macro expansions using defined().
Since these warnings come from third party code, we can't address them directly in Blender. Silencing them via #pramgas will
at least keep the warnings during a build down to the ones that are relevant to Blender code.

Fix crash with files saved with missing render slots.

UI: Use background color for reports

At the moment it's using a hardcoded gray color that conflicts with
themes using gray for the header text. Instead use a slightly brighter
background color to make it stand, yet still use a theme setting.

Draw: Use more proper particles index lookup

Cycles: Free evaluated meshed when we are done with object

Cycles: Fix memory leak with session

We didn't check for sync object being already allocated.
In fact, we simply need to use proper function to free
session.

Physics: update softbody and dynamic paint to get colliders from depsgraph.

Because looping over the scene is unsafe and slow.

Cleanup: refactor depsgraph physics API functions.