[Bf-blender-cvs] [f12fe3c23eb] master: VR: SteamVR is now a supported OpenXR runtime! (Windows only)

[Julian Eisel]

Commit: f12fe3c23eb42c1db190fcbed2dc222a5441a632
Author: Julian Eisel
Date:   Fri Jun 12 11:59:12 2020 +0200
Branches: master
https://developer.blender.org/rBf12fe3c23eb42c1db190fcbed2dc222a5441a632

VR: SteamVR is now a supported OpenXR runtime! (Windows only)

Steam just released a SteamVR update with OpenXR Developer Preview
support:
https://steamcommunity.com/games/250820/announcements/detail/2396425843528787270.

Once SteamVR is set up for OpenXR (see link above), it works with
Blender "out of the box", thanks to OpenXR!

We have to apply the sRGB transform workaround for SteamVR though,
otherwise it renders way too dark. Done in the next commit.

Note that AMD users may still only see a pink screen, because the
OpenGL-DirectX compatibility fails. I will check on a fix again.
For SteamVR on Linux we may have to wait for until it supports OpenGL
rendering for OpenXR. Alternatively, we *could* add initial Vulkan
support at Ghost level and use Vulkan<->OpenGL interoperability
extensions, Monado uses these as  well.

===================================================================

M	intern/ghost/intern/GHOST_XrContext.cpp
M	intern/ghost/intern/GHOST_XrContext.h

===================================================================

diff --git a/intern/ghost/intern/GHOST_XrContext.cpp b/intern/ghost/intern/GHOST_XrContext.cpp
index 3aab420a9b6..16687c34679 100644
--- a/intern/ghost/intern/GHOST_XrContext.cpp
+++ b/intern/ghost/intern/GHOST_XrContext.cpp
@@ -126,6 +126,7 @@ void GHOST_XrContext::storeInstanceProperties()
   const std::map<std::string, GHOST_TXrOpenXRRuntimeID> runtime_map = {
       {"Monado(XRT) by Collabora et al", OPENXR_RUNTIME_MONADO},
       {"Oculus", OPENXR_RUNTIME_OCULUS},
+      {"SteamVR/OpenXR", OPENXR_RUNTIME_STEAMVR},
       {"Windows Mixed Reality Runtime", OPENXR_RUNTIME_WMR}};
   decltype(runtime_map)::const_iterator runtime_map_iter;
 
diff --git a/intern/ghost/intern/GHOST_XrContext.h b/intern/ghost/intern/GHOST_XrContext.h
index 7dbd0a0d011..9be57cd90cc 100644
--- a/intern/ghost/intern/GHOST_XrContext.h
+++ b/intern/ghost/intern/GHOST_XrContext.h
@@ -49,6 +49,7 @@ struct GHOST_XrCustomFuncs {
 enum GHOST_TXrOpenXRRuntimeID {
   OPENXR_RUNTIME_MONADO,
   OPENXR_RUNTIME_OCULUS,
+  OPENXR_RUNTIME_STEAMVR,
   OPENXR_RUNTIME_WMR, /* Windows Mixed Reality */
 
   OPENXR_RUNTIME_UNKNOWN