Blender Git Loki

Fix issues changing HMD device

Fix python UI for building without HMD

Disable OpenHMD dummy device for release builds

Also fixing warning.

Don't allow orthographic view in HMD view

Displaying camera in orthographic mode is still allowed. We don't want
to mess with render data and forcing perspective viewport rendering in
HMD view even if the camera is set to be orthographic might be
confusing.

"Only Render" option for HMD view

Clay Engine: Fix shader linking issue

Use view orientation data from current 3D view for creating HMD view

Clay Engine: support draw callbacks

Edit Mode overlay: fix clear color, and possibly a crash.

Clay Engine: More Lamp drawing work

Clay Engine: Make panels compatible with the new engine

Clay Engine: camera drawing

CMake: confine WIN32 options

Mirror mode support (sync HMD viewpoint with regular 3D view)

Adds option "Mirror HMD View" to the HMD panel in the 3D view.

In this implementation we update/redraw the mirrored 3D views with the
HMD view, which can actually cause some extra slowdown (drawing the
viewport at least once more). We decided that this would be the best
solution for now, as the other option would be opening a separate window
showing the mirrored result, which is a bit too much against the
non-overlapping paradigma IMHO.
We could also draw the HMD view into some buffer and reuse this for
mirrored displays, but that would mess up projection matrices.
In Blender 2.8 we'll probably be able to use multi-threaded drawing
anyway, for which this would be the perfect use case.

3D View regions mirroring the HMD view are locked, for quadview we only
use the non-locked region for mirroring.

Cleanup: typos

BMesh: Add 'cut' separate mode for intersect tool

It was only possible to separate all geometry from an intersection or none.

Made this into an enum with a 3rd option to 'Cut', (now default)
which keeps each side of the intersection separate
without splitting faces in half.

Fix T50855: Intersect (knife) w/o separate doesn't select

Fix T50843: Pitched Audio renders incorrectly in VSE

There was a bug in the intended code behaviour to always seek with a
pitch of 1.0 regardless of pitch/pitch animation/doppler effects.

Check the bug report for a more detailed explanation of problems
concerning pitch and seeking.

Merge branch 'master' into temp-select-pick

BLI_rect: add init from point functions

Initialize a rectangle from point+size.