Blender Git Loki

Mantaflow: Big update for liquid simulations

Support for second order obstacles, additional parameters to control liquid behavior (e.g. flip ratio, max/min timesteps)

LANPR: dpix_shader_error type and rna definition fixes.

Cleanup: Function logic and unused variables.

Blender 2.81: New splash and release cycle bump

Splash by Alex Trevino / aendom.com
Original concept by Ana�s Maamar

Change release cycle to release.

LANPR: Fix multisample texture functions and engine registering functions.

CLeanup: fix property context item descriptions.

Merge remote-tracking branch 'origin/master' into temp-lanpr-review

Mantaflow: Added min/max timestep parameters

These parameters will allow the user to better control how long bake jobs may/should take.

Mantaflow: Fix for memory deallocation

Mesh was being freed slightly too early. Might have been the cause of very random crashes.

Mantaflow: Sanity check required when reading older files

Mantaflow: Fix for Eevee attempting to draw volumes into liquid domains

Mantaflow: Updated manta source updater script

Mantaflow: Updated manta pp files

Alembic: clean up exporter metadata code

The Alembic file metadata object was created in one place, a bit of
metadata was added, then it was passed along with other properties which
were then injected as metadata in another function. This is now cleaned up.

No functional changes.

LANPR: Removed unused DRW_texture_create_2d_multisample function.

Alembic: Upgrade from 1.7.8 to 1.7.12

Alembic 1.7.12 introduces a 'DCC FPS' hint, allowing Blender to write
the scene frame rate to the Alembic file. This will make it possible for
importers and converters to properly deal with situations where 'frame
number' is the only reference to time.

Writing this new DCC FPS hint will be done in a separate commit. Here
only the Alembic library is upgraded from 1.7.8 to 1.7.12.

Merge remote-tracking branch 'origin/master' into arcpatch-D5442

Cleanup: Code style and dead code stuff.

LANPR: Fix cmake option in render to allow lanpr callback for gp updates.

Cleanup: dead codes and commentaries.