[Bf-blender-cvs] [8cc52ef6e20] blender-v2.83-release: VR: SteamVR is now a supported OpenXR runtime! (Windows only)

[Julian Eisel]

Commit: 8cc52ef6e20878bc61b0ce5f61f6df8b11fe1250
Author: Julian Eisel
Date:   Fri Jun 12 11:59:12 2020 +0200
Branches: blender-v2.83-release
https://developer.blender.org/rB8cc52ef6e20878bc61b0ce5f61f6df8b11fe1250

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 4136255fd9e..6511293a24c 100644
--- a/intern/ghost/intern/GHOST_XrContext.cpp
+++ b/intern/ghost/intern/GHOST_XrContext.cpp
@@ -134,6 +134,7 @@ 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 47a22003daf..3a3452c977d 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