void My3DViewer::vertLoader(){
loader=new myFileDialog(this);
QString openfile=QFileDialog::getOpenFileName(this, tr("Open File"),"\CIS277",tr("Shader files (*.vert)"));
if(openfile.compare("")!=0){
string opens=openfile.toStdString();
c=new char[opens.length()+1];
for(int i=0; i<opens.length(); i++){
c[i]=opens[i];
cout<<c[i];
}
//null terminated string
c[opens.length()]='\0';
emit vertFileName(c);
}
}
void setup(int argc, char *argv[])
{
// Put the file paths back to a flatter system because I do not know if
// Windows will barf at the forward slashes and I do not have time to make this
// code check which OS it's using.
// char temp[256];
// string vertFileName(getcwd(temp, 255));
// string fragFileName(getcwd(temp, 255));
// vertFileName.append("/source/sample2d.vert");
// fragFileName.append("/source/sample2d.frag");
string vertFileName("sample3d.vert");
string fragFileName("sample3d.frag");
tx = ty = tz = axis = 0.0;
glutInit( &argc, argv );
glutInitDisplayMode( GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH );
glutInitWindowSize( 800, 600 );
glutCreateWindow( "Craig McCulloch's Project 4" );
// Resolves which OpenGL extensions are supported by hardware
if( glewInit() != GLEW_OK ) {
cerr << "Error reported by glewInit" << endl;
exit(1);
}
// Orthographic projection
// Projection
glMatrixMode( GL_PROJECTION );
glLoadIdentity();
gluPerspective( fov, aspect, nearClip, farClip );
gluLookAt(1.7, 1.5, 2.3, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0 );
// Viewing
glMatrixMode( GL_MODELVIEW );
glLoadIdentity();
glTranslatef(-0.5, -0.5, -0.7);
// Specify 3D RGBA texture
glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
glGenTextures( (unsigned int)1, (unsigned int *)&texName );
glBindTexture( (unsigned int)GL_TEXTURE_3D, (unsigned int)texName );
glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE );
glTexParameteri( GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameteri( GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexImage3D( GL_TEXTURE_3D, 0, GL_RGBA, dr->getX(), dr->getY(), dr->getZ(),
0, GL_RGBA, GL_UNSIGNED_BYTE, texels );
// Create shader program
shaderProgram1 = CreateProgram( vertFileName.c_str(), fragFileName.c_str() );
// Locate address of shader sampler variable
TexUnitLocation = glGetUniformLocation( shaderProgram1, "TexUnit" );
// Assign sampler variable value texture unit 0
glUniform1i( TexUnitLocation, TexUnit );
// Callbacks
glutDisplayFunc( myDraw );
glutKeyboardFunc( keyboard );
glutSpecialFunc( specialKeyFunc );
glutCreateMenu( menu );
glutAddMenuEntry( "View XY plane (or 'z' key)", 0 );
glutAddMenuEntry( "View XZ plane (or 'y' key)", 1 );
glutAddMenuEntry( "View YZ plane (or 'x' key)", 2 );
glutAddMenuEntry( "Quit (or 'q' key)", 3 );
glutAttachMenu( GLUT_RIGHT_BUTTON );
showMenu();
// Main loop
glutMainLoop();
}
