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shaderVectorPerVertex.h 2.93 KB
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/*******************************************************************************
* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
* version 0.1                                                                  *
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* Copyright (C) 2009-2012, IGG Team, LSIIT, University of Strasbourg           *
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*                                                                              *
* 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 2.1 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.           *
*                                                                              *
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* Web site: http://cgogn.unistra.fr/                                           *
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* Contact information: cgogn@unistra.fr                                        *
*                                                                              *
*******************************************************************************/

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#ifndef __CGOGN_SHADER_VPV__
#define __CGOGN_SHADER_VPV__
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#include "Utils/GLSLShader.h"
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#include "Utils/clippingShader.h"
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#include "Geometry/vector_gen.h"

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#include "Utils/dll.h"

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namespace CGoGN
{
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namespace Utils
{

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class CGoGN_UTILS_API ShaderVectorPerVertex : public ClippingShader
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{
protected:
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	// shader sources
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    static std::string vertexShaderText;
    static std::string geometryShaderText;
    static std::string fragmentShaderText;

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    CGoGNGLuint m_uniform_scale;
    CGoGNGLuint m_uniform_color;
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	float m_scale;
	Geom::Vec4f m_color;

    VBO* m_vboPos;
    VBO* m_vboVec;

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	/// clipping
	CGoGNGLuint m_unif_planeClip;
	Geom::Vec4f m_planeClip;

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	void getLocations();

	void sendParams();

	void restoreUniformsAttribs();

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public:
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	ShaderVectorPerVertex();
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	void setScale(float scale);

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	void setColor(const Geom::Vec4f& color);
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	unsigned int setAttributePosition(VBO* vbo);

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	unsigned int setAttributeVector(VBO* vbo);
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	void setClippingPlane(const Geom::Vec4f& plane);

	inline void setNoClippingPlane() { setClippingPlane(Geom::Vec4f(0.0f,0.0f,0.0f,0.0f)); }

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};
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} // namespace Utils

} // namespace CGoGN

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#endif