void VoxelGridGPU::setUniformCellSizeFromResolutionAndMapping(float width,
float height, int resX, int resY, int resZ) {
if ( ( width / resX ) != ( height / resY) )
{
DEBUGLOG->log( "Resolution and dimensions are in an unequal ratio. Cannot compute uniform cell size");
return;
}
this->width = width;
this->height = height;
this->resX = resX;
this->resY = resY;
this->resZ = resZ;
this->cellSize = ( width / resX );
this->depth = this->cellSize * resZ;
computeProjectionMatrix();
computeWorldToVoxel();
printInfo();
}
void display(void) {
double time;
char name[128];
timer1.startTimer();
/* first set up the matrices */
computeModelViewMatrix();
computeProjectionMatrix();
if (opengl_test) {
/* draw the scene with opengl */
scene.renderSceneOpenGL();
}
else {
/* draw the scene with software */
scene.renderSceneSoftware();
g_fb.dumpToScreen();
}
glFinish();
timer1.stopTimer();
time = timer1.getTime();
sprintf(name, "%s: %.4lf s, %.2lf fps", opengl_test ? "GL" : "Soft", time, 1.0/time);
glutSetWindowTitle(name);
checkGLErrors("Errors in display()!\n");
glutSwapBuffers();
}
void Camera::setOrthogonal(int width, int height, float nearP, float farP)
{
this->setWidth(width);
this->setHeight(height);
this->setZNearPlane(nearP);
this->setZFarPlane(farP);
this->setType(CameraType::ORTHOGRAPHIC);
computeProjectionMatrix();
}
void GLRender::loadProjectionMatrix(bool reset)
{
glMatrixMode(GL_PROJECTION);
if (reset)
glLoadIdentity();
computeProjectionMatrix();
glMultMatrixf(m_projectionMatrix);
}
void Camera::setPerspective(int width, int height, float nearP, float farP, float fieldOfView)
{
this->setWidth(width);
this->setHeight(height);
this->setZNearPlane(nearP);
this->setZFarPlane(farP);
this->setFieldOfView(fieldOfView);
this->setType(CameraType::PERSPECTIVE);
computeProjectionMatrix();
}
void MeshRenderer :: renderToImage(cv::Mat4b& image, const Pose3D& pose, int flags)
{
m_pbuffer->makeCurrent();
glMatrixMode (GL_MODELVIEW);
glLoadIdentity ();
if (flags & LIGHTING)
{
GLfloat mat_specular[] = { 1.0, 1.0, 1.0, 1.0 };
GLfloat mat_shininess[] = { 10.0 };
GLfloat light_position[] = { 1, 1, 1.0, 0.0 };
glEnable(GL_LIGHTING);
glShadeModel (GL_SMOOTH);
glEnable(GL_COLOR_MATERIAL);
glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
glLightfv(GL_LIGHT0, GL_POSITION, light_position);
glEnable(GL_LIGHT0);
}
computeProjectionMatrix(image, pose);
glClearColor(1.0f, 0.0f, 0.0f, 0.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if (flags & WIREFRAME)
glPolygonMode( GL_FRONT_AND_BACK, GL_LINE );
// draw the display list
glCallList(m_list_index);
glFlush();
computeDepthBuffer();
QImage qimage = m_pbuffer->toImage();
for (int r = 0; r < qimage.height(); ++r)
for (int c = 0; c < qimage.width(); ++c)
{
QRgb pixel = qimage.pixel(c,r);
Vec4b color (qBlue(pixel), qGreen(pixel), qRed(pixel), qAlpha(pixel));
m_color_buffer(r,c) = color;
float a = qAlpha(pixel)/255.f;
if (a > 0)
{
Vec4b old_color = image(r,c);
image(r,c) = Vec4b(old_color[0]*(1-a) + color[0]*a,
old_color[1]*(1-a) + color[1]*a,
old_color[2]*(1-a) + color[2]*a,
255);
}
}
}
void VoxelGridGPU::setDimensionFromMapping(float cellSize, float resX,
float resY, float resZ) {
if ( cellSize <= 0.0f )
{
DEBUGLOG->log( "Invalid cell size : ", cellSize);
return;
}
this->cellSize = cellSize;
this->resX = resX;
this->resY = resY;
this->resZ = resZ;
this->width = resX * cellSize;
this->height = resY * cellSize;
this->depth = resZ * cellSize;
computeProjectionMatrix();
computeWorldToVoxel();
printInfo();
}
void PerspectiveCamera::update()
{
computeProjectionMatrix();
computeVisualizationMatrix();
}
void PerspectiveCamera::update(){
glViewport(0, 0, glutGet(GLUT_WINDOW_WIDTH), glutGet(GLUT_WINDOW_HEIGHT));
computeProjectionMatrix();
computeVisualizationMatrix();
}
void OrthogonalCamera::update() {
computeProjectionMatrix();
computeVisualizationMatrix();
}