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Viewer.cpp
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Viewer.cpp
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#include "Viewer.h"
#include <time.h>
#include <math.h>
// USAGE: start x, start y, start z, you will focus along the positive z 20 units away from this
using namespace std;
Viewer::Viewer(QWidget * parent) : QGLWidget(parent)
{
srand( (unsigned)time( NULL ) );
mainball = new arcball();
texball = new arcball();
mainball->arcball_reset();
texball->arcball_reset();
size = 200;
sizex = 200;
sizey = 200;
lmap = 0;
gmap = 0;
isoDetail = 0.9;
alphaDetail = 0.9;
sizez = 200;
drawnView = 0;
shouldCombine = 0;
zoomAmount = size * 2.5;
zoom = 0;
maxRange = 10;
xrot = 0;
yrot = 0;
fileSelected = 0;
smap = 0;
cmap = 0;
transferFunctionSet = 0;
textureGenerated = 0;
alphaMapSet = 0;
texball->arcball_setzoom(1, vec(0,0,zoomAmount), vec(0,1,0));
mainball->arcball_setzoom(1, vec(0,0,zoomAmount), vec(0,1,0));
updateGL();
Qapp = 0;
drawSlicesToggle = 1;
drawIsos = 1;
drawVols = 1;
imap = 0;
xOff = 0;
yOff = 0;
pan = 0;
cuts = 0;
resize(600, 600);
//readFile();
}
void Viewer::toggleCuts()
{
//qDebug() << "got Called 2" << endl;
if(cuts == 0)
{
cuts = 1;
}
else
{
cuts = 0;
}
updateGL();
}
void Viewer::setIsoDetail(int value)
{
isoDetail = ((float)value)/256.0;
isoDetail = 0.9 - (isoDetail*0.8);
updateGL();
}
void Viewer::setAlphaDetail(int value)
{
//qDebug() << "got Called" << endl;
alphaDetail = ((float)value)/256.0;
isoDetail = 0.9 - (isoDetail*0.8);
updateGL();
}
void Viewer::toggleSlices()
{
if(drawSlicesToggle == 1)
{
drawSlicesToggle = 0;
}
else
{
drawSlicesToggle = 1;
}
updateGL();
}
void Viewer::toggleIsoSurfaces()
{
if(drawIsos == 1)
{
drawIsos = 0;
}
else
{
drawIsos = 1;
}
updateGL();
}
void Viewer::toggleVolSurfaces()
{
if(drawVols == 1)
{
drawVols = 0;
}
else
{
drawVols = 1;
}
updateGL();
}
void Viewer::closeEvent(QCloseEvent * event)
{
event = 0;
if(Qapp != 0)
{
Qapp->quit();
qDebug() << "I TRIED TO QUIT";
}
}
void Viewer::setApp(QApplication* QappIn)
{
Qapp = QappIn;
}
void Viewer::setAlphaMap(float* map)
{
alphaMap = map;
alphaMapSet = 1;
}
void Viewer::regenerateTransfer()
{
generateTransferImage();
}
void Viewer::generateTransferImage()
{
int pos = 0;
float normPos;
float redV, greenV, blueV;
ColorMapItr* itr;
itr = cmap -> getIter();
MapNode* lowerBound;
MapNode* upperBound;
if(cmap == 0 || maxRange == 0 || alphaMapSet == 0)
{
qDebug() << "got here";
return;
}
glActiveTexture(GL_TEXTURE0);
if(transferFunctionSet == 0)//set up texture
{
//glEnable(GL_TEXTURE_1D);
transferFunctionSet = 1;
glGenTextures (1, &shaderTexture[0]);
glBindTexture (GL_TEXTURE_1D, shaderTexture[0]);
glTexParameteri (GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
}
float shaderData[maxRange][4];
//make 1d texture of floats and linearly interpolate between cmap points and paint the texture
itr->reset();
if(!itr->end())//there is data in cmap
{
upperBound = itr->getCursor();
while(pos <= upperBound->getValue() && pos < maxRange)//if were not at upperbound yet
{
normPos = float(pos) / float(maxRange);
redV = interpolate(0, 0, upperBound->getRed(), upperBound->getValue()/float(256) * maxRange, pos);
greenV = interpolate(0, 0, upperBound->getGreen(), upperBound->getValue()/float(256) * maxRange, pos);
blueV = interpolate(0, 0, upperBound->getBlue(), upperBound->getValue()/float(256) * maxRange, pos);
shaderData[pos][0] = redV;
shaderData[pos][1] = greenV;
shaderData[pos][2] = blueV;
shaderData[pos][3] = alphaMap[int(normPos * 999)];
//shaderData[pos][0] = upperBound->getRed();
//shaderData[pos][1] = upperBound->getGreen();
//shaderData[pos][2] = upperBound->getBlue();
pos++;
}
itr->advance();
if(itr->end())
{
while(pos < maxRange)
{
normPos = float(pos) / float(maxRange);
redV = interpolate(upperBound->getRed(), upperBound->getValue()/float(256) * maxRange, 0, maxRange, pos);
greenV = interpolate(upperBound->getGreen(), upperBound->getValue()/float(256) * maxRange, 0, maxRange, pos);
blueV = interpolate(upperBound->getBlue(), upperBound->getValue()/float(256) * maxRange, 0, maxRange, pos);
shaderData[pos][0] = redV;
shaderData[pos][1] = greenV;
shaderData[pos][2] = blueV;
shaderData[pos][3] = alphaMap[int(normPos * 999)];
//shaderData[pos][0] = upperBound->getRed();
//shaderData[pos][1] = upperBound->getGreen();
//shaderData[pos][2] = upperBound->getBlue();
pos++;
}
}
else
{
itr->reset();
}
//do for rest until end!
while(!itr->end())
{
lowerBound = itr->getCursor();
itr->advance();
if(itr->end())//last values are lower bound!
{
while(pos < maxRange)//if were not at upperbound yet
{
normPos = float(pos) / float(maxRange);
redV = interpolate(lowerBound->getRed(), lowerBound->getValue()/float(256) * maxRange, 0, maxRange, pos);
greenV = interpolate(lowerBound->getGreen(), lowerBound->getValue()/float(256) * maxRange, 0, maxRange, pos);
blueV = interpolate(lowerBound->getBlue(), lowerBound->getValue()/float(256) * maxRange, 0, maxRange, pos);
shaderData[pos][0] = redV;
shaderData[pos][1] = greenV;
shaderData[pos][2] = blueV;
shaderData[pos][3] = alphaMap[int(normPos * 999)];
//shaderData[pos][0] = lowerBound->getRed();
//shaderData[pos][1] = lowerBound->getGreen();
//shaderData[pos][2] = lowerBound->getBlue();
pos++;
}
}
else
{
upperBound = itr->getCursor();
while(pos <= upperBound->getValue() && pos < maxRange)
{
normPos = float(pos) / float(maxRange);
redV = interpolate(lowerBound->getRed(), lowerBound->getValue()/float(256) * maxRange, upperBound->getRed(), upperBound->getValue()/float(256) * maxRange, pos);
greenV = interpolate(lowerBound->getGreen(), lowerBound->getValue()/float(256) * maxRange, upperBound->getGreen(), upperBound->getValue()/float(256) * maxRange, pos);
blueV = interpolate(lowerBound->getBlue(), lowerBound->getValue()/float(256) * maxRange, upperBound->getBlue(), upperBound->getValue()/float(256) * maxRange, pos);
shaderData[pos][0] = redV;
shaderData[pos][1] = greenV;
shaderData[pos][2] = blueV;
shaderData[pos][3] = alphaMap[int(normPos * 999)];
pos++;
}
}
}
// Upload
glActiveTexture(GL_TEXTURE0);
glTexImage1D(GL_TEXTURE_1D, 0, 4, maxRange, 0, GL_RGBA , GL_FLOAT, shaderData);
textureGenerated = 1;
}
updateGL();
// return;
}
float Viewer::interpolate(float lowValue, float lowPos, float hiValue, float hiPos, int pos)
{
float width = hiPos - lowPos;// width of line
float leftPercent = (float(pos) - lowPos) / width; //percantage left of pos
//float rightPercent = (hiPos - float(pos)) / width; //precentage right of pos
float rightPercent = float(1) - leftPercent;
return (leftPercent * hiValue) + (rightPercent * lowValue);
}
void Viewer::setMaxRange(int value)
{
maxRange = value;
}
void Viewer::setSlicesMap(ColorMap* smapin)
{
smap = smapin;
connect(smap, SIGNAL(changed()), this, SLOT(updateGL()));
}
void Viewer::setGlyphSlicesMap(ColorMap* smapin)
{
gmap = smapin;
connect(gmap, SIGNAL(changed()), this, SLOT(updateGL()));
}
void Viewer::setLicSlicesMap(ColorMap* smapin)
{
lmap = smapin;
connect(lmap, SIGNAL(changed()), this, SLOT(updateGL()));
}
void Viewer::setColorMap(ColorMap* smapin)
{
cmap = smapin;
connect(cmap, SIGNAL(changed()), this, SLOT(updateGL()));
connect(cmap, SIGNAL(changed()), this, SLOT(regenerateTransfer()));
}
void Viewer::setIsoMap(ColorMap* imapin)
{
imap = imapin;
connect(imap, SIGNAL(changed()), this, SLOT(updateGL()));
}
void Viewer::mousePressEvent(QMouseEvent *event)
{
//setMouseTracking(TRUE);
//grabMouse();
int invert_y = (this->height() - event->y());
//int invert_x = (this->width() - event->x());
texball->arcball_start(event->x(), invert_y);
mainball->arcball_start(event->x(), invert_y);
lastPos = event -> pos();
if (event->button() == Qt::LeftButton)
{
zoom = 0;
pan = 0;
}
else if (event -> button() == Qt::RightButton)
{
zoom = 1;
pan = 0;
}
else
{
pan = 1;
zoom = 0;
//setMouseTracking(FALSE);
//releaseMouse();
}
return;
}
void Viewer::mouseMoveEvent(QMouseEvent *event)
{
float xchange, ychange;
int invert_y = (this->height() - event->y());
//int invert_x = (this->width() - event->x());
//qDebug() << event->x();
//xchange = event -> x() - lastPos.x();
xchange = lastPos.x() - event -> x();
ychange = lastPos.y() - event -> y();
lastPos.setX(event -> x());
lastPos.setY(event -> y());
if(zoom == 1)
{
zoomAmount += ychange;
}
else if(pan == 1)
{
xOff -= xchange;
yOff += ychange;
}
else
{
texball->arcball_move(event->x(), invert_y);
mainball->arcball_move(event->x(), invert_y);
xrot += xchange;
yrot += ychange;
}
updateGL();
return;
}
void Viewer::generateTex1D()
{
makeCurrent();
//glEnable(GL_TEXTURE_1D);
transferFunctionSet = 1;
glGenTextures (1, &shaderTexture[0]);
glBindTexture (GL_TEXTURE_1D, shaderTexture[0]);
glTexParameteri (GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri (GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
float shaderData[10][3];
//make 1d texture of floats and linearly interpolate between cmap points and paint the texture
for(int i = 0; i < 10; i++)
{
shaderData[i][0] = 0.9;
shaderData[i][1] = 0.5;
shaderData[i][2] = 0.5;
}
glTexImage1D(GL_TEXTURE_1D, 0, GL_RGB, 10, 0, GL_RGB , GL_FLOAT, shaderData);
textureGenerated = 1;
return;
}
void Viewer::initializeGL()
{
glClearColor(0.3, 0.3, 0.3, 0.0);
glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
glShadeModel(GL_SMOOTH);
glEnable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_LIGHTING);
glDisable(GL_COLOR_MATERIAL);
//generateTex1D();
reloadShaders();
return;
}
void Viewer::reloadShaders()
{
makeCurrent();
QFile fileF("colorMapShader.frag");
fileF.open(QIODevice::ReadOnly);
QByteArray arrF = fileF.readAll();
const char* dataF = arrF.data();
const int sizeF = arrF.size();
fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
QFile fileV("colorMapShader.vert");
fileV.open(QIODevice::ReadOnly);
QByteArray arrV = fileV.readAll();
const char* dataV = arrV.data();
const int sizeV = arrV.size();
vertexShader = glCreateShader(GL_VERTEX_SHADER);
makeCurrent();
glShaderSource(fragmentShader, 1, &dataF, &sizeF);
glCompileShader(fragmentShader);
GLint compiledF;
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &compiledF);
//qDebug()<< compiledF;
if(compiledF != 1)
{
qDebug()<< "colorMapShader.frag compiled incorrectly!";
}
glShaderSource(vertexShader, 1, &dataV, &sizeV);
glCompileShader(vertexShader);
GLint compiledV;
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &compiledV);
//qDebug()<< compiledV;
makeCurrent();
program = glCreateProgram();
//glAttachShader(program, vertexShader);
glAttachShader(program, fragmentShader);
makeCurrent();
glLinkProgram(program);
glUseProgram(program);
GLint texture;
GLint colorTexture;
texture = glGetUniformLocation(program, "my_tex");
colorTexture = glGetUniformLocation(program, "my_coltex");
//qDebug() << texture << " " << colorTexture;
glUniform1i(texture, 1);
glUniform1i(colorTexture, 0);
QFile fileFIso("isoSurfaceShader.frag");
fileFIso.open(QIODevice::ReadOnly);
QByteArray arrFIso = fileFIso.readAll();
const char* dataFIso = arrFIso.data();
const int sizeFIso = arrFIso.size();
fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
makeCurrent();
glShaderSource(fragmentShader, 1, &dataFIso, &sizeFIso);
glCompileShader(fragmentShader);
GLint compiledFIso;
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &compiledFIso);
if(compiledFIso != 1)
{
qDebug() << "isoSurfaceShader.frag compiled incorrectly!";
}
QFile fileVIso("isoSurfaceShader.vert");
fileVIso.open(QIODevice::ReadOnly);
QByteArray arrVIso = fileVIso.readAll();
const char* dataVIso = arrVIso.data();
const int sizeVIso = arrVIso.size();
vertexShader = glCreateShader(GL_VERTEX_SHADER);
makeCurrent();
glShaderSource(vertexShader, 1, &dataVIso, &sizeVIso);
glCompileShader(vertexShader);
GLint compiledVIso;
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &compiledVIso);
if(compiledVIso != 1)
{
qDebug() << "isoSurfaceShader.vert compiled incorrectly!";
}
program2 = glCreateProgram();
glAttachShader(program2, vertexShader);
glAttachShader(program2, fragmentShader);
glLinkProgram(program2);
glUseProgram(program2);
texture = glGetUniformLocation(program2, "my_tex");
colorTexture = glGetUniformLocation(program2, "my_coltex");
glUniform1i(texture, 1);
glUniform1i(colorTexture, 0);
GLint dimensions;
dimensions = glGetUniformLocation(program2, "dimensions");
glUniform3f(dimensions, sizex, sizey, sizez);
GLint isoValue;
GLint maxSizeShader;
isoValue = glGetUniformLocation(program2, "isoValue");
maxSizeShader = glGetUniformLocation(program2, "maxSize");
glUniform1f(isoValue, 0.0);
glUniform1f(maxSizeShader, size);
glUseProgram(program);
QFile fileFVol("volumeSurfaceShader.frag");
fileFVol.open(QIODevice::ReadOnly);
QByteArray arrFVol = fileFVol.readAll();
const char* dataFVol = arrFVol.data();
const int sizeFVol = arrFVol.size();
fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
makeCurrent();
glShaderSource(fragmentShader, 1, &dataFVol, &sizeFVol);
glCompileShader(fragmentShader);
GLint compiledFVol;
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &compiledFVol);
if(compiledFVol != 1)
{
qDebug() << "volumeSurfaceShader.frag compiled incorrectly!";
}
QFile fileVVol("volumeSurfaceShader.vert");
fileVVol.open(QIODevice::ReadOnly);
QByteArray arrVVol = fileVVol.readAll();
const char* dataVVol = arrVVol.data();
const int sizeVVol = arrVVol.size();
vertexShader = glCreateShader(GL_VERTEX_SHADER);
makeCurrent();
glShaderSource(vertexShader, 1, &dataVVol, &sizeVVol);
glCompileShader(vertexShader);
GLint compiledVVol;
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &compiledVVol);
if(compiledVVol != 1)
{
qDebug() << "volumeSurfaceShader.vert compiled incorrectly!";
}
program3 = glCreateProgram();
glAttachShader(program3, vertexShader);
glAttachShader(program3, fragmentShader);
glLinkProgram(program3);
glUseProgram(program3);
texture = glGetUniformLocation(program3, "my_tex");
colorTexture = glGetUniformLocation(program3, "my_coltex");
glUniform1i(texture, 1);
glUniform1i(colorTexture, 0);
GLint dimensions2;
dimensions2 = glGetUniformLocation(program3, "dimensions");
glUniform3f(dimensions2, sizex, sizey, sizez);
GLint isoValue2;
GLint maxSizeShader2;
isoValue2 = glGetUniformLocation(program3, "isoValue");
maxSizeShader2 = glGetUniformLocation(program3, "maxSize");
glUniform1f(isoValue2, 0.0);
glUniform1f(maxSizeShader2, size);
glUseProgram(program);
//////return
QFile fileFVew("viewShader.frag");
fileFVew.open(QIODevice::ReadOnly);
QByteArray arrFVew = fileFVew.readAll();
const char* dataFVew = arrFVew.data();
const int sizeFVew = arrFVew.size();
fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
makeCurrent();
glShaderSource(fragmentShader, 1, &dataFVew, &sizeFVew);
glCompileShader(fragmentShader);
GLint compiledFVew;
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &compiledFVew);
if(compiledFVew != 1)
{
qDebug() << "viewShader.frag compiled incorrectly!";
}
QFile fileVVew("viewShader.vert");
fileVVew.open(QIODevice::ReadOnly);
QByteArray arrVVew = fileVVew.readAll();
const char* dataVVew = arrVVew.data();
const int sizeVVew = arrVVew.size();
vertexShader = glCreateShader(GL_VERTEX_SHADER);
makeCurrent();
glShaderSource(vertexShader, 1, &dataVVew, &sizeVVew);
glCompileShader(vertexShader);
GLint compiledVVew;
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &compiledVVew);
if(compiledVVew != 1)
{
qDebug() << "viewShader.vert compiled incorrectly!";
}
program4 = glCreateProgram();
glAttachShader(program4, vertexShader);
glAttachShader(program4, fragmentShader);
glLinkProgram(program4);
glUseProgram(program4);
texture = glGetUniformLocation(program4, "my_tex");
colorTexture = glGetUniformLocation(program4, "my_coltex");
glUniform1i(texture, 1);
glUniform1i(colorTexture, 0);
dimensions2 = glGetUniformLocation(program4, "dimensions");
glUniform3f(dimensions2, sizex, sizey, sizez);
maxSizeShader2 = glGetUniformLocation(program4, "maxSize");
glUniform1f(maxSizeShader2, size);
///lic
QFile fileFLic("licShader.frag");
fileFLic.open(QIODevice::ReadOnly);
QByteArray arrFLic = fileFLic.readAll();
const char* dataFLic = arrFLic.data();
const int sizeFLic = arrFLic.size();
fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
makeCurrent();
glShaderSource(fragmentShader, 1, &dataFLic, &sizeFLic);
glCompileShader(fragmentShader);
GLint compiledFLic;
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &compiledFLic);
if(compiledFLic != 1)
{
qDebug() << "licShader.frag compiled incorrectly!";
}
QFile fileVLic("licShader.vert");
fileVLic.open(QIODevice::ReadOnly);
QByteArray arrVLic = fileVLic.readAll();
const char* dataVLic = arrVLic.data();
const int sizeVLic = arrVLic.size();
vertexShader = glCreateShader(GL_VERTEX_SHADER);
makeCurrent();
glShaderSource(vertexShader, 1, &dataVLic, &sizeVLic);
glCompileShader(vertexShader);
GLint compiledVLic;
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &compiledVLic);
if(compiledVLic != 1)
{
qDebug() << "licShader.vert compiled incorrectly!";
}
program5 = glCreateProgram();
glAttachShader(program5, vertexShader);
glAttachShader(program5, fragmentShader);
glLinkProgram(program5);
glUseProgram(program5);
texture = glGetUniformLocation(program5, "my_tex");
colorTexture = glGetUniformLocation(program5, "my_coltex");
glUniform1i(texture, 1);
glUniform1i(colorTexture, 0);
//dimensions2 = glGetUniformLocation(program5, "dimensions");
//glUniform3f(dimensions2, sizex, sizey, sizez);
//maxSizeShader2 = glGetUniformLocation(program5, "maxSize");
//glUniform1f(maxSizeShader2, size);
GLint noiseTexSample;
GLint vecTexSample;
noiseTexSample = glGetUniformLocation(program5, "my_noisetex");
vecTexSample = glGetUniformLocation(program5, "my_vectex");
glUniform1i(noiseTexSample, 3);
glUniform1i(vecTexSample, 2);
glUseProgram(program);
///GEOMETRY SHADER?
QFile fileGGly("glyphShader.geom");
fileGGly.open(QIODevice::ReadOnly);
QByteArray arrGGly = fileGGly.readAll();
const char* dataGGly = arrGGly.data();
const int sizeGGly = arrGGly.size();
geometryShader = glCreateShader(GL_GEOMETRY_SHADER_EXT);
makeCurrent();
glShaderSource(geometryShader, 1, &dataGGly, &sizeGGly);
glCompileShader(geometryShader);
GLint compiledGGly;
glGetShaderiv(geometryShader, GL_COMPILE_STATUS, &compiledGGly);
if(compiledGGly != 1)
{
qDebug() << "glyphShader.geom compiled incorrectly!";
}
QFile fileFGly("glyphShader.frag");
fileFGly.open(QIODevice::ReadOnly);
QByteArray arrFGly = fileFGly.readAll();
const char* dataFGly = arrFGly.data();
const int sizeFGly = arrFGly.size();
fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
makeCurrent();
glShaderSource(fragmentShader, 1, &dataFGly, &sizeFGly);
glCompileShader(fragmentShader);
GLint compiledFGly;
glGetShaderiv(fragmentShader, GL_COMPILE_STATUS, &compiledFGly);
if(compiledFGly != 1)
{
qDebug() << "glyphShader.frag compiled incorrectly!";
}
QFile fileVGly("glyphShader.vert");
fileVGly.open(QIODevice::ReadOnly);
QByteArray arrVGly = fileVGly.readAll();
const char* dataVGly = arrVGly.data();
const int sizeVGly = arrVGly.size();
vertexShader = glCreateShader(GL_VERTEX_SHADER);
makeCurrent();
glShaderSource(vertexShader, 1, &dataVGly, &sizeVGly);
glCompileShader(vertexShader);
GLint compiledVGly;
glGetShaderiv(vertexShader, GL_COMPILE_STATUS, &compiledVGly);
if(compiledVGly != 1)
{
qDebug() << "glyphShader.vert compiled incorrectly!";
}
program6 = glCreateProgram();
glAttachShader(program6, fragmentShader);
glAttachShader(program6, vertexShader);
glAttachShader(program6, geometryShader);
glProgramParameteriEXT(program6,GL_GEOMETRY_INPUT_TYPE_EXT,GL_LINES);
glProgramParameteriEXT(program6,GL_GEOMETRY_OUTPUT_TYPE_EXT,GL_LINES);
int temp;
glGetIntegerv(GL_MAX_GEOMETRY_OUTPUT_VERTICES_EXT,&temp);
glProgramParameteriEXT(program6,GL_GEOMETRY_VERTICES_OUT_EXT,temp);
glLinkProgram(program6);
glUseProgram(program6);
texture = glGetUniformLocation(program6, "my_tex");
colorTexture = glGetUniformLocation(program6, "my_coltex");
glUniform1i(texture, 1);
glUniform1i(colorTexture, 0);
//dimensions2 = glGetUniformLocation(program5, "dimensions");
//glUniform3f(dimensions2, sizex, sizey, sizez);
//maxSizeShader2 = glGetUniformLocation(program5, "maxSize");
//glUniform1f(maxSizeShader2, size);
// noiseTexSample = glGetUniformLocation(program6, "my_noisetex");
// vecTexSample = glGetUniformLocation(program6, "my_vectex");
//
// glUniform1i(noiseTexSample, 3);
// glUniform1i(vecTexSample, 2);
//
glUseProgram(program);
return;
}
void Viewer::resizeGL(int w, int h) // sets gl up
{
glLoadIdentity();
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60, float(w)/float(h), 1, size * 10);
glMatrixMode(GL_MODELVIEW);
return;
}
void Viewer::drawSlices()
{
//glPushMatrix();
//glMatrixMode(GL_TEXTURE);
//glTranslatef(-(sizex/float(2)),-(sizey/float(2)), -(sizez/float(2)));
//glEnable(GL_TEXTURE_3D);
drawnView = 0;
ColorMapItr* itr;
float value;
MapNode* temp;
if(smap == 0)
{
return;
}
itr = smap -> getIter();
itr -> reset();
while(!itr->end())
{
//only for z aligned slizes!
temp = itr->getCursor();
if(temp -> getBlue() && temp -> getAlpha())
{
value = (float(temp->getValue()))/float(256);
glMatrixMode(GL_TEXTURE);
glPushMatrix();
glTranslatef(0,0, value);
glBegin(GL_QUADS);
glColor3f(0, 0, 1);
glTexCoord3d(0, 0, 0);
glVertex3f(0, 0, value * sizez);
glTexCoord3d(1, 0, 0);
glVertex3f(sizex, 0, value * sizez);
glTexCoord3d(1, 1, 0);
glVertex3f(sizex, sizey, value * sizez);
glTexCoord3d(0, 1, 0);
glVertex3f(0, sizey, value * sizez);
glEnd();
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
}
itr->advance();
}
itr->reset();
while(!itr->end())
{
//only for y aligned slizes!
temp = itr->getCursor();
if(temp -> getGreen() && temp -> getAlpha())
{
value = (float(temp->getValue()))/float(256);
glMatrixMode(GL_TEXTURE);
glPushMatrix();
glTranslatef(.5, .5, .5);
glRotatef(90, 1, 0, 0);
glTranslatef(-.5, -.5, -.5);
glTranslatef(0,0, 1-value);
glBegin(GL_QUADS);
glColor3f(0, 0, 1);
glTexCoord3d(0, 0, 0);
glVertex3f(0, value * sizey, 0);
glTexCoord3d(1, 0, 0);
glVertex3f(sizex, value * sizey, 0);
glTexCoord3d(1, 1, 0);
glVertex3f(sizex, value * sizey, sizez);
glTexCoord3d(0, 1, 0);
glVertex3f(0, value * sizey, sizez);
glEnd();
glRotatef(-90, 1, 0, 0);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
}
itr->advance();
}
itr->reset();
while(!itr->end())
{
//only for x aligned slizes!
temp = itr->getCursor();
if(temp -> getRed() && temp -> getAlpha())
{
value = (float(temp->getValue()))/float(256);
glMatrixMode(GL_TEXTURE);
glPushMatrix();
glTranslatef(.5, .5, .5);
glRotatef(90, 0, 1, 0);
glRotatef(180,0,1,0);
glTranslatef(-.5, -.5, -.5);
glTranslatef(0,0, 1-value);
glBegin(GL_QUADS);
glColor3f(0, 0, 1);
glTexCoord3d(0, 0, 0);
glVertex3f(value * sizex, 0, 0);
glTexCoord3d(1, 0, 0);
glVertex3f(value *sizex, 0, sizez);
glTexCoord3d(1, 1, 0);
glVertex3f(value * sizex, sizey, sizez);
glTexCoord3d(0, 1, 0);
glVertex3f(value * sizex, sizey, 0);
glEnd();
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
}
itr->advance();
}
return;
//glMatrixMode(GL_TEXTURE);
//glPopMatrix();
//glMatrixMode(GL_MODELVIEW);
}
void Viewer::drawViewSlice() // paints gl
{
ColorMapItr* itr;
float value;
MapNode* temp;
if(smap == 0)
{
return;
}
itr = smap -> getIter();
itr -> reset();
glUseProgram(program4);
GLint viewDistance;
viewDistance = glGetUniformLocation(program4, "planeDistance");
while(!itr->end())
{
//only for view aligned slizes!
temp = itr->getCursor();
if(!temp -> getRed() && !temp -> getBlue() && !temp -> getGreen() && temp -> getAlpha())
{
if(drawnView != 1)
{
value = temp -> getValue();
value = value / float(256);
glUniform1f(viewDistance, value);
//side 1 z far
glBegin(GL_QUADS);
glColor3f(0,0,1);
glTexCoord3d(0,0,1);
glVertex3f(0,0,0);
glTexCoord3d(0,1,1);
glVertex3f(0,sizex,0);
glTexCoord3d(1,1,1);
glVertex3f(sizex,sizey,0);
glTexCoord3d(1,0,1);
glVertex3f(sizex,0,0);
glEnd();
//side 2 z near
glBegin(GL_QUADS);
glColor3f(0,1,1);
glTexCoord3d(0,0,0);
glVertex3f(0,0,sizez);
glTexCoord3d(0,1,0);
glVertex3f(0,sizex,sizez);
glTexCoord3d(1,1,0);
glVertex3f(sizex,sizey,sizez);
glTexCoord3d(1,0,0);
glVertex3f(sizex,0,sizez);
glEnd();
//side 3 x left
glBegin(GL_QUADS);