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stage_shader.cpp 14.4 KB
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/*******************************************************************************
* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
* version 0.1                                                                  *
* Copyright (C) 2009-2011, IGG Team, LSIIT, University of Strasbourg           *
*                                                                              *
* 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.           *
*                                                                              *
* Web site: http://cgogn.u-strasbg.fr/                                         *
* Contact information: cgogn@unistra.fr                                        *
*                                                                              *
*******************************************************************************/
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#include "stage_shader.h"

/*******************************************************************************
 *														SLOTS
 *******************************************************************************/

void StageShader::slot_drawTopo(bool b)
{
	m_drawTopo = b;
	updateGL();
}

void StageShader::slot_drawVertices(bool b)
{
	m_drawVertices = b;
	updateGL();
}


void StageShader::slot_drawLines(bool b)
{
	m_drawLines = b;
	updateGL();
}


void StageShader::slot_drawFaces(bool b)
{
	m_drawFaces = b;
	updateGL();
}

void StageShader::slot_explodTopoPhi1(double c)
{
	m_coeffTopoExplod[0] = (float)c;
	m_render_topo->updateData<PFP>(myMap, allDarts, position, m_coeffTopoExplod[0], m_coeffTopoExplod[1], m_coeffTopoExplod[2]);
	updateGL();
}

void StageShader::slot_explodTopoPhi2(double c)
{
	m_coeffTopoExplod[1] = (float)c;
	m_render_topo->updateData<PFP>(myMap, allDarts, position, m_coeffTopoExplod[0], m_coeffTopoExplod[1], m_coeffTopoExplod[2]);
	updateGL();
}

void StageShader::slot_explodTopoPhi3(double c)
{
	m_coeffTopoExplod[2] = (float)c;
	m_render_topo->updateData<PFP>(myMap, allDarts, position, m_coeffTopoExplod[0], m_coeffTopoExplod[1], m_coeffTopoExplod[2]);
	updateGL();
}

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void StageShader::slot_pushButton_addPlane()
{
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	m_shader->setClippingPlanesCount(dock.comboBox_PlaneIndex->count() + 1);
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	m_shader->setClippingPlaneOrigin(m_bb.center(), dock.comboBox_PlaneIndex->count() + 1 - 1);
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	std::string indexStr;
	std::stringstream ss;
	ss << (dock.comboBox_PlaneIndex->count() + 1);
	indexStr = ss.str();

	std::string str = "Plane " + indexStr;

	dock.comboBox_PlaneIndex->addItem(QString(str.c_str()));

	dock.vertexEdit->setPlainText(QString(m_shader->getVertexShaderSrc()));
	dock.fragmentEdit->setPlainText(QString(m_shader->getFragmentShaderSrc()));

	updateGLMatrices();
}

void StageShader::slot_pushButton_deletePlane()
{
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	m_shader->setClippingPlanesCount(dock.comboBox_PlaneIndex->count() - 1);
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	dock.comboBox_PlaneIndex->removeItem(dock.comboBox_PlaneIndex->count() - 1);

	dock.vertexEdit->setPlainText(QString(m_shader->getVertexShaderSrc()));
	dock.fragmentEdit->setPlainText(QString(m_shader->getFragmentShaderSrc()));

	updateGLMatrices();
}

void StageShader::slot_comboBox_PlaneIndexChanged(int newIndex)
{
	if (newIndex >= 0)
	{
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		Geom::Vec3f currPlaneVec1 = m_shader->getClippingPlaneFirstVec(newIndex);
		dock.doubleSpinBox_PlaneVec1x->setValue(currPlaneVec1[0]);
		dock.doubleSpinBox_PlaneVec1y->setValue(currPlaneVec1[1]);
		dock.doubleSpinBox_PlaneVec1z->setValue(currPlaneVec1[2]);

		Geom::Vec3f currPlaneVec2 = m_shader->getClippingPlaneSecondVec(newIndex);
		dock.doubleSpinBox_PlaneVec2x->setValue(currPlaneVec2[0]);
		dock.doubleSpinBox_PlaneVec2y->setValue(currPlaneVec2[1]);
		dock.doubleSpinBox_PlaneVec2z->setValue(currPlaneVec2[2]);

		Geom::Vec3f currPlaneOrigin = m_shader->getClippingPlaneOrigin(newIndex);
		dock.doubleSpinBox_PlaneOriginx->setValue(currPlaneOrigin[0]);
		dock.doubleSpinBox_PlaneOriginy->setValue(currPlaneOrigin[1]);
		dock.doubleSpinBox_PlaneOriginz->setValue(currPlaneOrigin[2]);
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	}
}

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void StageShader::slot_doubleSpinBox_PlaneVec1(double c)
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{
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	if (dock.comboBox_PlaneIndex->currentIndex() >= 0)
	{
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		float x = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_PlaneVec1x->value();
		float y = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_PlaneVec1y->value();
		float z = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_PlaneVec1z->value();
		m_shader->setClippingPlaneFirstVec(Geom::Vec3f(x, y, z), dock.comboBox_PlaneIndex->currentIndex());
		updateGL();
	}
}

void StageShader::slot_doubleSpinBox_PlaneVec2(double c)
{
	if (dock.comboBox_PlaneIndex->currentIndex() >= 0)
	{
		float x = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_PlaneVec2x->value();
		float y = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_PlaneVec2y->value();
		float z = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_PlaneVec2z->value();
		m_shader->setClippingPlaneSecondVec(Geom::Vec3f(x, y, z), dock.comboBox_PlaneIndex->currentIndex());
		updateGL();
	}
}

void StageShader::slot_doubleSpinBox_PlaneOrigin(double c)
{
	if (dock.comboBox_PlaneIndex->currentIndex() >= 0)
	{
		float x = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_PlaneOriginx->value();
		float y = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_PlaneOriginy->value();
		float z = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->doubleSpinBox_PlaneOriginz->value();
		m_shader->setClippingPlaneOrigin(Geom::Vec3f(x, y, z), dock.comboBox_PlaneIndex->currentIndex());
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		updateGL();
	}
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}

void StageShader::slot_doubleSpinBox_ColorAttenuationFactor(double c)
{
	m_shader->setClippingColorAttenuationFactor((float)c);
	updateGL();
}

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void StageShader::button_compile()
{
	QString st1 = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->vertexEdit->toPlainText();
	QString st2 = dynamic_cast<Utils::QT::uiDockInterface*>(dockWidget())->fragmentEdit->toPlainText();

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	m_shader->reloadVertexShaderFromMemory(st1.toStdString().c_str());
	m_shader->reloadFragmentShaderFromMemory(st2.toStdString().c_str());
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	m_shader->recompile();
	updateGLMatrices();
}

/*******************************************************************************
 *														Init Functions
 *******************************************************************************/

StageShader::StageShader():
	m_drawVertices(false),
	m_drawLines(true),
	m_drawFaces(true),
	m_drawTopo(false),
	m_render(NULL),
	m_render_topo(NULL),
	m_positionVBO(NULL),
	m_shader(NULL)
{
	m_coeffTopoExplod = Geom::Vec3f(0.9,0.9,0.9);
}

void StageShader::initGUI()
{
	CGoGNStream::allToConsole(this) ;
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	CGoGNStream::allToStd(true) ;
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	setDock(&dock);

	dock.setWindowFlags(Qt::WindowMinimizeButtonHint);

	setCallBack(dock.checkBox_vertices, SIGNAL(toggled(bool)), SLOT(slot_drawVertices(bool)));
	setCallBack(dock.checkBox_lines, SIGNAL(toggled(bool)), SLOT(slot_drawLines(bool)));
	setCallBack(dock.checkBox_faces, SIGNAL(toggled(bool)), SLOT(slot_drawFaces(bool)));
	setCallBack( dock.groupBox_topo, SIGNAL(toggled(bool)), SLOT(slot_drawTopo(bool)));

	setCallBack(dock.explod_phi1, SIGNAL(valueChanged(double)), SLOT(slot_explodTopoPhi1(double)));
	setCallBack(dock.explod_phi2, SIGNAL(valueChanged(double)), SLOT(slot_explodTopoPhi2(double)));
	setCallBack(dock.explod_phi3, SIGNAL(valueChanged(double)), SLOT(slot_explodTopoPhi3(double)));

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	setCallBack(dock.pushButton_addPlane, SIGNAL(clicked()), SLOT(slot_pushButton_addPlane()));
	setCallBack(dock.pushButton_deletePlane, SIGNAL(clicked()), SLOT(slot_pushButton_deletePlane()));

	setCallBack(dock.comboBox_PlaneIndex, SIGNAL(currentIndexChanged(int)), SLOT(slot_comboBox_PlaneIndexChanged(int)));

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	setCallBack(dock.doubleSpinBox_PlaneVec1x, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_PlaneVec1(double)));
	setCallBack(dock.doubleSpinBox_PlaneVec1y, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_PlaneVec1(double)));
	setCallBack(dock.doubleSpinBox_PlaneVec1z, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_PlaneVec1(double)));

	setCallBack(dock.doubleSpinBox_PlaneVec2x, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_PlaneVec2(double)));
	setCallBack(dock.doubleSpinBox_PlaneVec2y, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_PlaneVec2(double)));
	setCallBack(dock.doubleSpinBox_PlaneVec2z, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_PlaneVec2(double)));

	setCallBack(dock.doubleSpinBox_PlaneOriginx, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_PlaneOrigin(double)));
	setCallBack(dock.doubleSpinBox_PlaneOriginy, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_PlaneOrigin(double)));
	setCallBack(dock.doubleSpinBox_PlaneOriginz, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_PlaneOrigin(double)));
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	setCallBack(dock.doubleSpinBox_ColorAttenuationFactor, SIGNAL(valueChanged(double)), SLOT(slot_doubleSpinBox_ColorAttenuationFactor(double)));

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	setCallBack(dock.compileButton, SIGNAL(clicked()), SLOT(button_compile()) );

	dock.vertexEdit->setPlainText(QString(m_shader->getVertexShaderSrc()));
	dock.fragmentEdit->setPlainText(QString(m_shader->getFragmentShaderSrc()));

}

void StageShader::cb_Open()
{
	std::string filters("all (*.*)") ;
	std::string filename = selectFile("Open Mesh", "", filters) ;

	importMesh(filename) ;
	updateGL() ;
}

void StageShader::importMesh(std::string& filename)
{
	std::vector<std::string> attrNames ;

	std::string extension;
	size_t pos;

	pos = filename.rfind(".");    // position of "." in filename
	 extension = filename.substr(pos);

	if(extension == std::string(".tet"))
	{
		if(!Algo::Import::importTet<PFP>(myMap,filename.c_str(),attrNames))
		{
			CGoGNerr << "could not import " << filename << CGoGNendl ;
			return;
		}
		else
			position = myMap.getAttribute<PFP::VEC3>(VERTEX , attrNames[0]) ;
	}
	else if(extension == std::string(".ts"))
	{
		if(!Algo::Import::importTs<PFP>(myMap,filename.c_str(),attrNames))
		{
			CGoGNerr << "could not import " << filename << CGoGNendl ;
			return;
		}
		else
			position = myMap.getAttribute<PFP::VEC3>(VERTEX , attrNames[0]) ;
	}

	updateVBOprimitives(Algo::Render::GL2::TRIANGLES | Algo::Render::GL2::LINES | Algo::Render::GL2::POINTS) ;

	m_render_topo->updateData<PFP>(myMap, allDarts, position, m_coeffTopoExplod[0], m_coeffTopoExplod[1], m_coeffTopoExplod[2]);

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	m_bb = Algo::Geometry::computeBoundingBox<PFP>(myMap, position) ;
	gPosObj = m_bb.center() ;
	float tailleX = m_bb.size(0) ;
	float tailleY = m_bb.size(1) ;
	float tailleZ = m_bb.size(2) ;
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	gWidthObj = std::max<float>(std::max<float>(tailleX, tailleY), tailleZ) ;

	m_positionVBO->updateData(position) ;

	setParamObject(gWidthObj, gPosObj.data()) ;

	updateGLMatrices() ;
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	m_shader->setPlaneDisplaySize((m_bb.maxSize())*1.2f);
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}

/*******************************************************************************
 *														GL FUNCTIONS
 *******************************************************************************/

void StageShader::cb_initGL()
{
	// choose to use GL version 2
	Utils::GLSLShader::setCurrentOGLVersion(2);

	// create the render
	m_render = new Algo::Render::GL2::MapRender();
	m_render_topo = new Algo::Render::GL2::Topo3RenderMapD();

	// create VBO for position
	m_positionVBO = new Utils::VBO();

	// using simple shader with color
	m_shader = new Utils::ShaderSimpleColor();
	m_shader->setAttributePosition(m_positionVBO);
	m_shader->setColor(Geom::Vec4f(0.,1.,0.,0.));

	registerShader(m_shader);
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	m_shader->setPlaneDisplayColor(Geom::Vec3f (1.0, 0.0, 0.0));
	m_shader->setPlaneDisplayXRes(10);
	m_shader->setPlaneDisplayYRes(5);
	m_shader->setPlaneDisplayType(Utils::ClippingShader::STRAIGHT_GRID);
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}

void StageShader::updateVBOprimitives(int upType)
{
	if(upType & Algo::Render::GL2::TRIANGLES)
	{
		m_render->initPrimitives<PFP>(myMap, allDarts, Algo::Render::GL2::TRIANGLES) ;
	}

	if(upType & Algo::Render::GL2::LINES)
	{
		m_render->initPrimitives<PFP>(myMap, allDarts, Algo::Render::GL2::LINES,false) ;
	}

	if(upType & Algo::Render::GL2::POINTS)
	{
		m_render->initPrimitives<PFP>(myMap, allDarts, Algo::Render::GL2::POINTS) ;
	}
}

void StageShader::cb_redraw()
{
	if(m_drawVertices)
	{
		m_shader->setColor(Geom::Vec4f(0.,0.,1.,0.));
		m_render->draw(m_shader, Algo::Render::GL2::POINTS);
	}

	if(m_drawLines)
	{
		glLineWidth(2.0f);
		m_shader->setColor(Geom::Vec4f(1.,1.,0.,0.));
		m_render->draw(m_shader, Algo::Render::GL2::LINES);
	}

	if(m_drawFaces)
	{
		glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
		glEnable(GL_LIGHTING);
		glEnable(GL_POLYGON_OFFSET_FILL);
		glPolygonOffset(1.0f, 1.0f);
		m_shader->setColor(Geom::Vec4f(0.,1.,0.,0.));
		m_render->draw(m_shader, Algo::Render::GL2::TRIANGLES);
		glDisable(GL_POLYGON_OFFSET_FILL);
	}

	if (m_drawTopo)
		m_render_topo->drawTopo();

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	m_shader->displayClippingPlanes();

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}

void StageShader::cb_keyPress(int code)
{

}

void StageShader::cb_mousePress(int button, int x, int y)
{

}

/**********************************************************************************************
 *							                                      MAIN FUNCTION                         								                *
 **********************************************************************************************/

int main(int argc, char** argv)
{
    QApplication app(argc, argv) ;

    StageShader sqt ;
    sqt.setGeometry(0, 0, 1000, 800) ;
    sqt.show() ;

	if(argc ==  2)
    {
            std::string filename(argv[1]) ;
            sqt.importMesh(filename) ;
    }
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	else
	{
		sqt.position = sqt.myMap.addAttribute<PFP::VEC3>(VERTEX, "position");
		Algo::Modelisation::Primitive3D<PFP> prim(sqt.myMap, sqt.position);
		prim.hexaGrid_topo(10,10,10);
		prim.embedHexaGrid(1.0f,1.0f,1.0f);
	}
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    sqt.initGUI() ;

    return app.exec() ;
}