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voxel.cpp
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voxel.cpp
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#include <QtGui/QGuiApplication>
#include <QtGui/QMatrix4x4>
#include <QtGui/QOpenGLShaderProgram>
#include "voxel.h"
Voxel::Voxel()
{
position = QVector3D(0,0,0);
length = 1;
}
Voxel::Voxel(QVector3D _position, float _length)
{
position = QVector3D(_position.x(),_position.y(),_position.z());
length = _length;
}
void Voxel::set(QVector3D _position, float _length){
position = QVector3D(_position.x(),_position.y(),_position.z());
length = _length;
}
void Voxel::DisplayVoxel(){
glPushMatrix();
glEnable(GL_CULL_FACE);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
glTranslatef(position.x(), position.y(), position.z());
glColor3f(0.f,0.f,1.f);
float midLength = length / 2.f;
float yLength = 5.f;
glCullFace(GL_FRONT);
glBegin(GL_QUADS);
glVertex3f(position.x() - midLength, position.y() - yLength, position.z() + midLength);
glVertex3f(position.x() + midLength, position.y() - yLength, position.z() + midLength);
glVertex3f(position.x() + midLength, position.y() + yLength , position.z() + midLength);
glVertex3f(position.x() - midLength, position.y() + yLength , position.z() + midLength);
glVertex3f(position.x() + midLength, position.y() - yLength , position.z() - midLength);
glVertex3f(position.x() - midLength, position.y() - yLength , position.z() - midLength);
glVertex3f(position.x() - midLength, position.y() + yLength , position.z() - midLength);
glVertex3f(position.x() + midLength, position.y() + yLength , position.z() - midLength);
glVertex3f(position.x() - midLength, position.y() - yLength , position.z() - midLength);
glVertex3f(position.x() - midLength, position.y() - yLength , position.z() + midLength);
glVertex3f(position.x() - midLength, position.y() + yLength , position.z() + midLength);
glVertex3f(position.x() - midLength, position.y() + yLength , position.z() - midLength);
glVertex3f(position.x() + midLength, position.y() - yLength , position.z() + midLength);
glVertex3f(position.x() + midLength, position.y() - yLength , position.z() - midLength);
glVertex3f(position.x() + midLength, position.y() + yLength , position.z() - midLength);
glVertex3f(position.x() + midLength, position.y() + yLength , position.z() + midLength);
glEnd();
glCullFace(GL_BACK);
glBegin(GL_QUADS);
glVertex3f(position.x() - midLength, position.y() - yLength , position.z() + midLength);
glVertex3f(position.x() + midLength, position.y() - yLength , position.z() + midLength);
glVertex3f(position.x() + midLength, position.y() + yLength , position.z() + midLength);
glVertex3f(position.x() - midLength, position.y() + yLength , position.z() + midLength);
glVertex3f(position.x() + midLength, position.y() - yLength , position.z() - midLength);
glVertex3f(position.x() - midLength, position.y() - yLength , position.z() - midLength);
glVertex3f(position.x() - midLength, position.y() + yLength , position.z() - midLength);
glVertex3f(position.x() + midLength, position.y() + yLength , position.z() - midLength);
glVertex3f(position.x() - midLength, position.y() - yLength , position.z() - midLength);
glVertex3f(position.x() - midLength, position.y() - yLength , position.z() + midLength);
glVertex3f(position.x() - midLength, position.y() + yLength , position.z() + midLength);
glVertex3f(position.x() - midLength, position.y() + yLength , position.z() - midLength);
glVertex3f(position.x() + midLength, position.y() - yLength , position.z() + midLength);
glVertex3f(position.x() + midLength, position.y() - yLength , position.z() - midLength);
glVertex3f(position.x() + midLength, position.y() + yLength , position.z() - midLength);
glVertex3f(position.x() + midLength, position.y() + yLength , position.z() + midLength);
glEnd();
glDisable(GL_CULL_FACE);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glPopMatrix();
}