shaderColorPerVertex.cpp 3.18 KB
Newer Older
1 2 3
/*******************************************************************************
* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
* version 0.1                                                                  *
4
* Copyright (C) 2009-2011, IGG Team, LSIIT, University of Strasbourg           *
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
*                                                                              *
* 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.           *
*                                                                              *
20
* Web site: http://cgogn.u-strasbg.fr/                                         *
21 22 23 24 25
* Contact information: cgogn@unistra.fr                                        *
*                                                                              *
*******************************************************************************/

#include <GL/glew.h>
26 27
#include "Utils/Shaders/shaderColorPerVertex.h"

28 29 30

namespace CGoGN
{
Pierre Kraemer's avatar
merge..  
Pierre Kraemer committed
31

32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82
namespace Utils
{

std::string ShaderColorPerVertex::vertexShaderText =
		"ATTRIBUTE vec3 VertexPosition;\n"
		"ATTRIBUTE vec3 VertexColor;\n"
		"uniform mat4 ModelViewProjectionMatrix;\n"
		"VARYING_VERT vec3 color;\n"
		"INVARIANT_POS;\n"
		"void main ()\n"
		"{\n"
		"	gl_Position = ModelViewProjectionMatrix * vec4 (VertexPosition, 1.0);\n"
		"	color = VertexColor;\n"
		"}";


std::string ShaderColorPerVertex::fragmentShaderText =
		"PRECISON;\n"
		"VARYING_FRAG vec3 color;\n"
		"FRAG_OUT_DEF;\n"
		"void main()\n"
		"{\n"
		"	gl_FragColor=vec4(color,0.0);\n"
		"}";


ShaderColorPerVertex::ShaderColorPerVertex()
{
	std::string glxvert(*GLSLShader::DEFINES_GL);
	glxvert.append(vertexShaderText);

	std::string glxfrag(*GLSLShader::DEFINES_GL);
	glxfrag.append(fragmentShaderText);

	loadShadersFromMemory(glxvert.c_str(), glxfrag.c_str());
}

unsigned int ShaderColorPerVertex::setAttributePosition(VBO* vbo)
{
	m_vboPos = vbo;
	return bindVA_VBO("VertexPosition", vbo);
}

unsigned int ShaderColorPerVertex::setAttributeColor(VBO* vbo)
{
	m_vboCol = vbo;
	return bindVA_VBO("VertexColor", vbo);
}

void ShaderColorPerVertex::restoreUniformsAttribs()
{
83
	bind();
84 85
	bindVA_VBO("VertexPosition", m_vboPos);
	bindVA_VBO("VertexColor", m_vboCol);
86
	unbind();
87 88
}

Pierre Kraemer's avatar
merge..  
Pierre Kraemer committed
89
} // namespace Utils
90

Pierre Kraemer's avatar
merge..  
Pierre Kraemer committed
91
} // namespace CGoGN