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diff --git a/modules/render/render_osg_camera_manipulator.h b/modules/render/render_osg_camera_manipulator.h
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+/*
+ * render_osg_camera_manipulator.h -  supports 3D interactive manipulators
+ *
+ *  Copyright (c) 2018 Intel Corporation
+ *
+ * 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.
+ *
+ * Author: Zong Wei <wei.zong@intel.com>
+ */
+
+#ifndef XCAM_OSG_CAMERA_MANIPULATOR_H
+#define XCAM_OSG_CAMERA_MANIPULATOR_H
+
+#include <osgGA/StandardManipulator>
+
+namespace XCam {
+
+class RenderOsgCameraManipulator
+    : public osgGA::StandardManipulator
+{
+public:
+
+    explicit RenderOsgCameraManipulator ();
+
+    virtual ~RenderOsgCameraManipulator ();
+
+    virtual void setByMatrix (const osg::Matrixd &matrix)
+    {
+        (void)matrix;
+    }
+
+    virtual void setByInverseMatrix (const osg::Matrixd &matrix)
+    {
+        (void)matrix;
+    }
+
+    virtual osg::Matrixd getMatrix () const;
+
+    virtual osg::Matrixd getInverseMatrix () const;
+
+    virtual void home (double currentTime);
+
+    virtual void setTransformation (const osg::Vec3d &eye, const osg::Quat &rotation)
+    {
+        (void)eye;
+        (void)rotation;
+    }
+
+    virtual void setTransformation (const osg::Vec3d &eye, const osg::Vec3d &center, const osg::Vec3d &up)
+    {
+        (void)eye;
+        (void)center;
+        (void)up;
+    }
+
+    virtual void getTransformation (osg::Vec3d &eye, osg::Quat &rotation) const
+    {
+        (void)eye;
+        (void)rotation;
+    }
+
+    virtual void getTransformation (osg::Vec3d &eye, osg::Vec3d &center, osg::Vec3d &up) const
+    {
+        (void)eye;
+        (void)center;
+        (void)up;
+    }
+
+    void setInitialValues (float angle, float length, float width, float height)
+    {
+        mAngle = angle;
+        mLength = length;
+        mWidth = width;
+        mHeight = height;
+        mMinHeight = height / 2.0f;
+
+        mUp = osg::Vec3d(0.0f, 0.0f, 1.0f);
+    }
+
+private:
+    RenderOsgCameraManipulator (RenderOsgCameraManipulator const &other);
+
+    RenderOsgCameraManipulator &operator= (RenderOsgCameraManipulator const &other);
+
+    virtual bool handleKeyDown (const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &us);
+
+    virtual bool handleMouseWheel (const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &us);
+
+    virtual bool performMovementLeftMouseButton (const double eventTimeDelta, const double dx, const double dy);
+
+    void rotate (float deltaAngle);
+
+    void modifyHeight (float delta);
+
+    void getEyePosition (osg::Vec3d &eye) const;
+
+    void getLookAtPosition (osg::Vec3d &center) const;
+
+    float mAngle;
+    float mLookAtOffset;
+    float mMaxLookAtOffset;
+    float mLength;
+    float mWidth;
+    float mHeight;
+    float mMaxHeight;
+    float mMinHeight;
+    float mEyePosScale;
+    osg::Vec3d mUp;
+};
+
+} // namespace XCam
+
+#endif // XCAM_OSG_CAMERA_MANIPULATOR_H