void draw_streamlines() {
glPushMatrix();
glScalef(1/(float)len[0], 1/(float)len[0], 1/(float)len[0]);
glTranslatef(-len[0]/2.0, -len[1]/2.0, -len[2]/2.0);
std::list<vtListSeedTrace*>::iterator pIter;
for (int i=0; i<nproc; i++) { // looping through all subdomains
pIter = sl_list[i].begin();
for (; pIter!=sl_list[i].end(); pIter++) {
vtListSeedTrace *trace = *pIter;
std::list<VECTOR3*>::iterator pnIter;
pnIter = trace->begin();
glColor3f(0.3,0.3,0.3);
glBegin(GL_LINE_STRIP);
for (; pnIter!= trace->end(); pnIter++) {
VECTOR3 p = **pnIter;
//printf(" %f %f %f ", p[0], p[1], p[2]);
glVertex3f(p[0], p[1], p[2]);
}
glEnd();
}
volume_bounds_type vb = vb_list[i];
draw_bounds(vb.xmin, vb.xmax, vb.ymin, vb.ymax, vb.zmin, vb.zmax);
}
glPopMatrix();
}
static void draw_bounds(const wtree<3>& t, std::array<std::array<float, 2>, 3> bounds, float depth)
{
for(size_t i = 0; i < wtree<3>::node_count; i++)
if(t.nodes[i].count > 0)
{
std::array<std::array<float, 2>, 3> tmp_bounds = bounds;
wtree<3>& new_t = *t.nodes[i].wtree;
for(size_t d = 0; d < wtree<3>::dimension; d++)
if(new_t.element[d] >= t.element[d])
tmp_bounds[d][0] = t.element[d];
else
tmp_bounds[d][1] = t.element[d];
draw_bounds(new_t, tmp_bounds, depth*0.5);
}
glColor3f(0.9*depth, 0.9*depth, 0.9*depth);
for(size_t i = 0; i < wtree<3>::dimension; i++)
{
std::array<std::array<float, 3>, 2> line;
for(size_t j = 0; j < 2; j++)
line[j] = t.element;
for(size_t j = 0; j < 2; j++)
line[j][i] = bounds[i][j];
for(size_t j = 0; j < 2; j++)
glVertex3f(line[j][0], line[j][1], line[j][2]);
}
}
void Controller::output_status() const
{
logger.stats(stats_);
if( settings_.draw_bounds )
{
draw_bounds();
}
}
void wtree3_viewer::draw()
{
const wtree<3>& t = *tree_ptr;
constexpr float dist = 2.0;
float rad = in_range(i, 360, 0, 2.0 * M_PI);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60.0, 1.333, 1.0, 100.0);
gluLookAt(0.5+dist*std::cos(rad), 0.5, 0.5+dist*std::sin(rad), 0.5, 0.5, 0.5, 0.0, 1.0, 0.0);
//glTranslatef(-0.5, -0.5, 0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glClear(GL_COLOR_BUFFER_BIT);
glLineWidth(5.0);
glBegin(GL_LINES);
for(size_t i = 0; i < 3; i++)
{
glColor3f(i == 0, i == 1, i == 2);
glVertex3f(0.0, 0.0, 0.0);
glVertex3f(i == 0, i == 1, i == 2);
}
glEnd();
glLineWidth(1.0);
glBegin(GL_LINES);
draw_bounds(t, {{{{0.0, 1.0}}, {{0.0, 1.0}}, {{0.0, 1.0}}}}, 1.0);
glEnd();
glPointSize(3.0);
glBegin(GL_POINTS);
draw_dots(t, 1.0);
glEnd();
glFlush();
glutSwapBuffers();
glutPostRedisplay();
i++;
}
void draw_streamlines() {
glPushMatrix();
glScalef(1/(float)len[0], 1/(float)len[0], 1/(float)len[0]);
glTranslatef(-len[0]/2.0, -len[1]/2.0, -len[2]/2.0);
std::list<vtListSeedTrace*>::iterator pIter;
for (int proc = 0; proc<nproc; proc++) {
list<vtListSeedTrace*> *list = sl_list[proc];
int np = num_partitions[proc];
for (int i=0; i<np; i++) { // looping through all subdomains
pIter = list[i].begin();
for (; pIter!=list[i].end(); pIter++) {
vtListSeedTrace *trace = *pIter;
std::list<VECTOR3*>::iterator pnIter;
pnIter = trace->begin();
glColor3f(0.3,0.3,0.3);
glBegin(GL_LINE_STRIP);
for (; pnIter!= trace->end(); pnIter++) {
VECTOR3 p = **pnIter;
glVertex3f(p[0], p[1], p[2]);
}
glEnd();
}
int p = plist[proc][i];
volume_bounds_type vb = vb_list[p];
glColor3f(1,1,0);
draw_bounds(vb.xmin, vb.xmax, vb.ymin, vb.ymax, vb.zmin, vb.zmax);
}
}
glPopMatrix();
}
/*!
* Main display function; called whenever the scene needs to be redrawn.
*/
static void
display(void)
{
Lib3dsNode *c,*t;
Lib3dsFloat fov, roll;
float near, far, dist;
float *campos;
float *tgt;
Lib3dsMatrix M;
Lib3dsCamera *cam;
Lib3dsVector v;
Lib3dsNode *p;
if( file != NULL && file->background.solid.use )
glClearColor(file->background.solid.col[0],
file->background.solid.col[1],
file->background.solid.col[2], 1.);
/* TODO: fog */
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if( anti_alias )
glEnable(GL_POLYGON_SMOOTH);
else
glDisable(GL_POLYGON_SMOOTH);
if (!file) {
return;
}
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, file->ambient);
c=lib3ds_file_node_by_name(file, camera, LIB3DS_CAMERA_NODE);
t=lib3ds_file_node_by_name(file, camera, LIB3DS_TARGET_NODE);
if( t != NULL )
tgt = t->data.target.pos;
if( c != NULL ) {
fov = c->data.camera.fov;
roll = c->data.camera.roll;
campos = c->data.camera.pos;
}
if ((cam = lib3ds_file_camera_by_name(file, camera)) == NULL)
return;
near = cam->near_range;
far = cam->far_range;
if (c == NULL || t == NULL) {
if( c == NULL ) {
fov = cam->fov;
roll = cam->roll;
campos = cam->position;
}
if( t == NULL )
tgt = cam->target;
}
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
/* KLUDGE alert: OpenGL can't handle a near clip plane of zero,
* so if the camera's near plane is zero, we give it a small number.
* In addition, many .3ds files I've seen have a far plane that's
* much too close and the model gets clipped away. I haven't found
* a way to tell OpenGL not to clip the far plane, so we move it
* further away. A factor of 10 seems to make all the models I've
* seen visible.
*/
if( near <= 0. ) near = far * .001;
gluPerspective( fov, 1.0*gl_width/gl_height, near, far);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glRotatef(-90, 1.0,0,0);
/* User rotates the view about the target point */
lib3ds_vector_sub(v, tgt, campos);
dist = lib3ds_vector_length(v);
glTranslatef(0.,dist, 0.);
glRotatef(view_rotx, 1., 0., 0.);
glRotatef(view_roty, 0., 1., 0.);
glRotatef(view_rotz, 0., 0., 1.);
glTranslatef(0.,-dist, 0.);
lib3ds_matrix_camera(M, campos, tgt, roll);
glMultMatrixf(&M[0][0]);
/* Lights. Set them from light nodes if possible. If not, use the
* light objects directly.
*/
{
static const GLfloat a[] = {0.0f, 0.0f, 0.0f, 1.0f};
static GLfloat c[] = {1.0f, 1.0f, 1.0f, 1.0f};
static GLfloat p[] = {0.0f, 0.0f, 0.0f, 1.0f};
Lib3dsLight *l;
int li=GL_LIGHT0;
for (l=file->lights; l; l=l->next) {
glEnable(li);
light_update(l);
c[0] = l->color[0];
c[1] = l->color[1];
c[2] = l->color[2];
glLightfv(li, GL_AMBIENT, a);
glLightfv(li, GL_DIFFUSE, c);
glLightfv(li, GL_SPECULAR, c);
p[0] = l->position[0];
p[1] = l->position[1];
p[2] = l->position[2];
glLightfv(li, GL_POSITION, p);
if (l->spot_light) {
p[0] = l->spot[0] - l->position[0];
p[1] = l->spot[1] - l->position[1];
p[2] = l->spot[2] - l->position[2];
glLightfv(li, GL_SPOT_DIRECTION, p);
}
++li;
}
}
if( show_object )
{
for (p=file->nodes; p!=0; p=p->next) {
render_node(p);
}
}
if( show_bounds )
draw_bounds(tgt);
if( show_cameras )
{
for( cam = file->cameras; cam != NULL; cam = cam->next )
{
lib3ds_matrix_camera(M, cam->position, cam->target, cam->roll);
lib3ds_matrix_inv(M);
glPushMatrix();
glMultMatrixf(&M[0][0]);
glScalef(size/20, size/20, size/20);
glCallList(cameraList);
glPopMatrix();
}
}
if( show_lights )
{
Lib3dsLight *light;
for( light = file->lights; light != NULL; light = light->next )
draw_light(light->position, light->color);
glMaterialfv(GL_FRONT, GL_EMISSION, black);
}
glutSwapBuffers();
}
