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diff --git a/src/render/Qt3DSRenderTessellationShader.h b/src/render/Qt3DSRenderTessellationShader.h
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+++ b/src/render/Qt3DSRenderTessellationShader.h
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+/****************************************************************************
+**
+** Copyright (C) 2008-2012 NVIDIA Corporation.
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt 3D Studio.
+**
+** $QT_BEGIN_LICENSE:GPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 or (at your option) any later version
+** approved by the KDE Free Qt Foundation. The licenses are as published by
+** the Free Software Foundation and appearing in the file LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#pragma once
+#ifndef QT3DS_RENDER_TESSELLATION_SHADER_H
+#define QT3DS_RENDER_TESSELLATION_SHADER_H
+
+#include "foundation/Qt3DSBroadcastingAllocator.h"
+#include "foundation/Qt3DSAtomic.h"
+#include "render/Qt3DSRenderShader.h"
+
+namespace qt3ds {
+namespace render {
+    using namespace foundation;
+
+    class NVRenderContextImpl;
+
+    ///< This class represents a tessellation control shader
+    class NVRenderTessControlShader : public NVRenderShader
+    {
+
+    public:
+        /**
+         * @brief constructor
+         *
+         * @param[in] context		Pointer to render context
+         * @param[in] fnd			Pointer to foundation
+         * @param[in] source		Pointer to shader source code
+         * @param[in] binaryProgram	true if this is a binary program
+         *
+         * @return No return.
+         */
+        NVRenderTessControlShader(NVRenderContextImpl &context, NVFoundationBase &fnd,
+                                  NVConstDataRef<QT3DSI8> source, bool binaryProgram);
+
+        /// @brief destructor
+        ~NVRenderTessControlShader();
+
+        /**
+         * @brief Query if shader compiled succesfuly
+         *
+         * @return True if shader is valid.
+         */
+        bool IsValid() override { return (m_ShaderHandle != NULL); }
+
+        /**
+         * @brief get the backend object handle
+         *
+         * @return the backend object handle.
+         */
+        virtual NVRenderBackend::NVRenderBackendTessControlShaderObject GetShaderHandle()
+        {
+            return m_ShaderHandle;
+        }
+
+    private:
+        NVRenderBackend::NVRenderBackendTessControlShaderObject
+            m_ShaderHandle; ///< opaque backend handle
+    };
+
+    ///< This class represents a tessellation evaluation shader
+    class NVRenderTessEvaluationShader : public NVRenderShader
+    {
+
+    public:
+        /**
+         * @brief constructor
+         *
+         * @param[in] context		Pointer to render context
+         * @param[in] fnd			Pointer to foundation
+         * @param[in] source		Pointer to shader source code
+         * @param[in] binaryProgram	true if this is a binary program
+         *
+         * @return No return.
+         */
+        NVRenderTessEvaluationShader(NVRenderContextImpl &context, NVFoundationBase &fnd,
+                                     NVConstDataRef<QT3DSI8> source, bool binaryProgram);
+
+        /// @brief destructor
+        ~NVRenderTessEvaluationShader();
+
+        /**
+         * @brief Query if shader compiled succesfuly
+         *
+         * @return True if shader is valid.
+         */
+        bool IsValid() override { return (m_ShaderHandle != NULL); }
+
+        /**
+         * @brief get the backend object handle
+         *
+         * @return the backend object handle.
+         */
+        virtual NVRenderBackend::NVRenderBackendTessEvaluationShaderObject GetShaderHandle()
+        {
+            return m_ShaderHandle;
+        }
+
+    private:
+        NVRenderBackend::NVRenderBackendTessEvaluationShaderObject
+            m_ShaderHandle; ///< opaque backend handle
+    };
+}
+}
+
+#endif