Made rift dummy behavior configurable. (Define ACGL_RIFT_USE_DUMMY):x

src/ACGL/HardwareSupport/RiftSdk.cc

@@ -54,10 +54,16 @@ namespace HardwareSupport{
 			return NULL;
 		}
 		else if (!mHmd && !_headTrackingIsRequired) {
-			//warning() << "could not connect to a real Oculus Rift HMD - generating sensorless dummy" << endl;
-			//mHmd = ovrHmd_CreateDebug(ovrHmd_DK1);
-			debug() << "could not connect to a real Oculus Rift HMD" << endl;
-			return NULL;
+
+#if ACGL_RIFT_USE_DUMMY
+            warning() << "could not connect to a real Oculus Rift HMD - generating sensorless dummy" << endl;
+            mHmd = ovrHmd_CreateDebug(ovrHmd_DK1);
+#else
+            debug() << "could not connect to a real Oculus Rift HMD" << endl;
+            mHmd = NULL;
+#endif
+
+            return mHmd;
 		}
 
 		ovrHmdDesc mHmdDesc;
@@ -108,4 +114,4 @@ namespace HardwareSupport{
 }
 
 #endif
-#endif
\ No newline at end of file
+#endif