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diff --git a/gfx/vr/service/osvr/Util/Pose3C.h b/gfx/vr/service/osvr/Util/Pose3C.h
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+++ b/gfx/vr/service/osvr/Util/Pose3C.h
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+/** @file
+    @brief Header
+
+    Must be c-safe!
+
+    @date 2014
+
+    @author
+    Sensics, Inc.
+    <http://sensics.com/osvr>
+*/
+
+/*
+// Copyright 2014 Sensics, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+*/
+
+#ifndef INCLUDED_Pose3C_h_GUID_066CFCE2_229C_4194_5D2B_2602CCD5C439
+#define INCLUDED_Pose3C_h_GUID_066CFCE2_229C_4194_5D2B_2602CCD5C439
+
+/* Internal Includes */
+
+/* Internal Includes */
+#include <osvr/Util/APIBaseC.h>
+#include <osvr/Util/Vec3C.h>
+#include <osvr/Util/QuaternionC.h>
+
+/* Library/third-party includes */
+/* none */
+
+/* Standard includes */
+/* none */
+
+OSVR_EXTERN_C_BEGIN
+
+/** @addtogroup UtilMath
+    @{
+*/
+
+/** @brief A structure defining a 3D (6DOF) rigid body pose: translation and
+    rotation.
+*/
+typedef struct OSVR_Pose3 {
+  /** @brief Position vector */
+  OSVR_Vec3 translation;
+  /** @brief Orientation as a unit quaternion */
+  OSVR_Quaternion rotation;
+} OSVR_Pose3;
+
+/** @brief Set a pose to identity */
+OSVR_INLINE void osvrPose3SetIdentity(OSVR_Pose3* pose) {
+  osvrQuatSetIdentity(&(pose->rotation));
+  osvrVec3Zero(&(pose->translation));
+}
+/** @} */
+
+OSVR_EXTERN_C_END
+
+#endif