Blender Git Loki

Revert "changing collada parameters"

This reverts commit d91f2ac37aa02d96a00d116fa55cdc9f55afd32c.

This change makes scene.collada_export() meaningless
(ignoring the scene the method is being run on).

Presets: remove double underscore in preset names

Fix T54029: Wrong preset name display in win32

Cleanup: use function for clearing bmesh tags

Fix T50132: UV sticky mode is not respected with border/circle/lasso select.

Differential Revision: https://developer.blender.org/D3074

Fix incorrect text clipping on node link button in material properties.

DRW/GWN: Bypass glUseProgram.

Turns out to be the call that was destroying performance.

I get 18ms->6ms improvement of drawing time with 10 000 unique objects.

And we can still improve upon this!

Object Mode: Display meshes without faces and edges in object mode.

Eevee: Cleanup cascaded shadowmap code.

Manipulator: rename is_visible -> poll

Rename to WM_manipulator_group_type_poll,
use convention of other poll functions.

Fix Player tm, a lifes job

merged collada rework from master into blender 2.8

changing collada parameters

Differential Revision: https://developer.blender.org/D3080

Fix a whitespace slipped in

Fix Plyer tm

T45687: Rework the Export/Import of Animations

This started with a fix for an animated Object Hierarchy. Then i decided to cleanup and optimize a bit. But at the end this has become a more or less full rewrite of the Animation Exporter. All of this happened in a separate local branch and i have retained all my local commits to better see what i have done.

Brief description:

* I fixed a few issues with exporting keyframed animations of object hierarchies where the objects have parent inverse matrices which differ from the Identity matrix.
* I added the option to export sampled animations with a user defined sampling rate (new user interface option)
* I briefly tested Object Animations and Rig Animations.

What is still needed:

* Cleanup the code
* Optimize the user interface
* Do the Documentation

Reviewers: mont29

Reviewed By: mont29

Differential Revision: https://developer.blender.org/D3070

Merge branch 'master' into blender2.8

Conflicts:
source/blender/blenkernel/BKE_blender_version.h

Smoke: expose empty space clipping property to the UI.

This is used to determine which voxels are to be considered empty space.

Previously it was hardcoded for converting dense grids to OpenVDB grids
to reduce disk space usage.

This value is also useful for rendering engines to know, i.e. to
optimize ray marching.

OpenVDB : use underscores instead of spaces in grid names.

Some other software cannot handle grid names with spaces in them. We still check for names with spaces so as to not break old
files.

This fixes T53802.

Fixup for border render changes

Although I fixed border rendering, I broke non-border rendering.

Issue introduced on: 0305fc30b3ba6a1b24e2c9c182ae2e76d553f341