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diff --git a/src/graphics/GPUShadowFilter.h b/src/graphics/GPUShadowFilter.h
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+++ b/src/graphics/GPUShadowFilter.h
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+//
+//  libavg - Media Playback Engine. 
+//  Copyright (C) 2003-2014 Ulrich von Zadow
+//
+//  This library is free software; you can redistribute it and/or
+//  modify it under the terms of the GNU Lesser General Public
+//  License as published by the Free Software Foundation; either
+//  version 2 of the License, or (at your option) any later version.
+//
+//  This library is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+//  Lesser General Public License for more details.
+//
+//  You should have received a copy of the GNU Lesser General Public
+//  License along with this library; if not, write to the Free Software
+//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+//
+//  Current versions can be found at www.libavg.de
+//
+
+#ifndef _GPUShadowFilter_H_
+#define _GPUShadowFilter_H_
+
+#include "../api.h"
+#include "GPUFilter.h"
+#include "GLShaderParam.h"
+#include "GLTexture.h"
+
+#include "../base/GLMHelper.h"
+
+namespace avg {
+
+class AVG_API GPUShadowFilter: public GPUFilter
+{
+public:
+    GPUShadowFilter(const IntPoint& size, const glm::vec2& offset, float stdDev,
+            float opacity, const Pixel32& color);
+    virtual ~GPUShadowFilter();
+    
+    void setParams(const glm::vec2& offset, float stdDev, float opacity, 
+            const Pixel32& color);
+    virtual void applyOnGPU(GLTexturePtr pSrcTex);
+
+private:
+    void setDimensions(IntPoint size, float stdDev, const glm::vec2& offset);
+
+    glm::vec2 m_Offset;
+    float m_StdDev;
+    float m_Opacity;
+    Pixel32 m_Color;
+
+    GLTexturePtr m_pGaussCurveTex;
+    ImagingProjectionPtr m_pProjection2;
+
+    FloatGLShaderParamPtr m_pHorizWidthParam;
+    IntGLShaderParamPtr m_pHorizRadiusParam;
+    IntGLShaderParamPtr m_pHorizTextureParam;
+    IntGLShaderParamPtr m_pHorizKernelTexParam;
+    Vec2fGLShaderParamPtr m_pHorizOffsetParam;
+
+    FloatGLShaderParamPtr m_pVertWidthParam;
+    IntGLShaderParamPtr m_pVertRadiusParam;
+    IntGLShaderParamPtr m_pVertTextureParam;
+    IntGLShaderParamPtr m_pVertKernelTexParam;
+    ColorGLShaderParamPtr m_pVertColorParam;
+    IntGLShaderParamPtr m_pVertOrigTexParam;
+    Vec2fGLShaderParamPtr m_pVertDestPosParam;
+    Vec2fGLShaderParamPtr m_pVertDestSizeParam;
+};
+
+typedef boost::shared_ptr<GPUShadowFilter> GPUShadowFilterPtr;
+
+}
+#endif
+