Blender Git Commits

Automate selecting HMD device

This automates setting of HMD device UserPref option a bit, so that it's ready to go without manual adjustments.
We use the last device plugged in on startup (if one is available). On runtime, plugging in a device makes it active if 'None' was previously selected in the UserPref option.
Saving HMD in UserPrefs should also be supported, but can't test.
Also removes EVT_HMD_DEVICENUM_CHANGE and version patch, they're not needed anymore.

Send an event when a HMD was plugged in/out

It's not used for now, will commit separately.

More minor cleanup

Minor cleanup

Fix crash opening UserPrefs on some systems.

Merge branch 'master' into HMD_viewport

Cleanup & fixes in GHOST_OpenHMDManager

Fix crash opening UserPrefs->System with HMD session running, fix OpenHMD context being re-created on each redraw of UserPrefs->System, get rid of m_available (can use m_device NULL check instead), other minor cleanup.

- Fixed getting device information for the user preferences
- Defaulting to device 0 in openhmd which is the last plugged in (will fallback on Dummy Device)

Add assert to ensure HMD view is always fullscreen

Cleanup: Unused variable/unused value

Add build option WITH_INPUT_HMD

If we later want to support other drivers aside from OpenHMD, we only want OpenHMD to work at the low GHOST level. The new option is for the higher, driver independent level.
Since currently only OpenHMD is supported, I added a compile warning for the case HMD input is enabled and OpenHMD is disabled. Also added a compile error for the case OpenHMD is enabled and HMD input is disabled.

This means we now have 3 HMD build options:
* WITH_INPUT_HMD - General HMD support
* WITH_OPENHMD - OpenHMD driver support
* WITH_OPENHMD_DYNLOAD - Dynamic runtime OpenHMD deps loading

Actually, _INPUT_HMD isn't totally correct since it does more than just input, but wanted to stick to naming conventions.

Merge branch 'master' into HMD_viewport

Fix compiling with WITH_OPENHMD disabled

Fix reading HMD window from file causing crash on session start

Some hacks to disallow toggeling out of fullscreen in an HMD window

Remove unused storage for lens distortion shader

Also removes unneeded button from UI and unneeded RNA defines.

Fix memory leak in lens distortion shader

Also, the shader itself wasn't drawing previously, which it does now (but still incorrect).

Sync Cycles UI code

Option for HMD view lens distortion shader

Enabled by default. Note that shader is currently broken though.

Fix HMD session not ended correctly when closing HMD view during session