Blender Git Loki

Fix T53559: Auto texture space for text and font is wrong in Cycles

The issue actually goes a bit deeper, converting curve to mesh will
change texture space just because font and bezier curves are using CV
to calculate texture space.

So now when those objects are converted to mesh, we disable auto
texture space and copy evaluated space over.

Cycles tests: Enable texture space tests

Merge branch 'master' into blender2.8

UI: split out button checks from tooltip creation

Allows to make tooltips from other kinds of data.

Merge branch 'master' into blender2.8

Fix T53547 for real now

Original fix was assuming that particle init operation is updated on every
frame, which is wrong behavior and that was fixed in previous commit to the
original bugfix.

Manipulator: ui-scale support for navigate widget

Manipulator: 3D view navigation improvements

- Highlight's were too intense/distracting
use more subtle alpha (consistent with the rest of our UI).
- Don't fill center cube (only draw edges).
- Draw widget while interacting since this is helpful in some cases.

Thanks to @jbakker for suggestions.

Also change axis hotspots so the nearest is always selected
for quicker axis picking (relies on dragging any axis to orbit).

Correct axis mapping logic

Merge branch 'master' into blender2.8

3D View: use shortest angle between quaternions

Gave incorrect smoothview speed changing between some axis and
axis locking.

Math Lib: signed versions of quaternion angle

There was no simple way to get the shortest quaternion angle.

Manipulator: Support click only manipulator's

Makes the 3D view navigation widget easier to use: dragging anywhere
in the rotation region now rotates without having to avoid the XYZ axis
hotspots which only activate on a single click.

Logic for drag detection is complicated by manipulators reliance
on keeping the modal operator running.
Currently this is wrapped in an ifdef,
we may want to implement it differently later.

Manipulaor: de-duplicate finish call

Forgotten on last commit

Draw Manager: draw_cache_imp_displist, always return IndexBuf even when there is no index

This prevents possible errors with materials and a crash with low resolution metaball.
Also a small cleanup was done in the code.

Fix T53474, bevel glitchy with big objects.

A comparison should have not just have been against an epsilon,
but relative to the edge length involved.
Thanks to mano-wii for patch on which this is based.

Depsgraph: Cleanup, line length

Depsgraph: Use named typedef for tag

Depsgraph: Cleanup, typo in comment