fix(server_openvr): 🐛 Make SteamVR chaperone consistent with ALVR

Author: zmerp

alvr/server_openvr/cpp/alvr_server/ChaperoneUpdater.cpp

@@ -55,6 +55,12 @@ void ShutdownOpenvrClient() {
 
 bool IsOpenvrClientReady() { return isOpenvrInit; }
 
+void ResetChaperoneToStage() {
+#ifndef __APPLE__
+    vr::VRChaperone()->ResetZeroPose(vr::TrackingUniverseRawAndUncalibrated);
+#endif
+}
+
 void _SetChaperoneArea(float areaWidth, float areaHeight) {
     Debug("SetChaperoneArea");
 
@@ -96,6 +102,7 @@ void _SetChaperoneArea(float areaWidth, float areaHeight) {
         );
     }
 
+    ResetChaperoneToStage();
 #endif
 }
 

alvr/server_openvr/cpp/alvr_server/alvr_server.cpp

@@ -212,24 +212,25 @@ class DriverProvider : public vr::IServerTrackedDeviceProvider {
                 }
 
                 HapticsSend(id, haptics.fDurationSeconds, haptics.fFrequency, haptics.fAmplitude);
-            }
+            } else if (event.eventType == vr::VREvent_ChaperoneUniverseHasChanged
+                       || event.eventType == vr::VREvent_ChaperoneRoomSetupFinished
+                       || event.eventType == vr::VREvent_ChaperoneFlushCache
+                       || event.eventType == vr::VREvent_ChaperoneSettingsHaveChanged
+                       || event.eventType == vr::VREvent_SeatedZeroPoseReset
+                       || event.eventType == vr::VREvent_StandingZeroPoseReset
+                       || event.eventType == vr::VREvent_SceneApplicationChanged
+                       || event.eventType == VendorEvent_ALVRDriverResync) {
+                ResetChaperoneToStage();
+
 #ifdef __linux__
-            else if (event.eventType == vr::VREvent_ChaperoneUniverseHasChanged
-                     || event.eventType == vr::VREvent_ChaperoneRoomSetupFinished
-                     || event.eventType == vr::VREvent_ChaperoneFlushCache
-                     || event.eventType == vr::VREvent_ChaperoneSettingsHaveChanged
-                     || event.eventType == vr::VREvent_SeatedZeroPoseReset
-                     || event.eventType == vr::VREvent_StandingZeroPoseReset
-                     || event.eventType == vr::VREvent_SceneApplicationChanged
-                     || event.eventType == VendorEvent_ALVRDriverResync) {
                 if (hmd && hmd->m_poseHistory) {
                     auto rawZeroPose = GetRawZeroPose();
                     if (rawZeroPose != nullptr) {
                         hmd->m_poseHistory->SetTransform(*rawZeroPose);
                     }
                 }
-            }
 #endif
+            }
         }
         if (vr::VRServerDriverHost()->IsExiting() && !shutdown_called) {
             Debug("DriverProvider: Received shutdown event");

alvr/server_openvr/cpp/alvr_server/bindings.h

@@ -159,6 +159,7 @@ extern "C" void SetButton(unsigned long long buttonID, FfiButtonValue value);
 
 extern "C" void InitOpenvrClient();
 extern "C" void ShutdownOpenvrClient();
+extern "C" void ResetChaperoneToStage();
 extern "C" void SetChaperoneArea(float areaWidth, float areaHeight);
 
 extern "C" void CaptureFrame();