void Camera::rotate(const quaternion& q)
{
_modelViewMatrix *= q.toMatrix();
modelViewUpdated();
}
void display() {
// test the perlin noise
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
{
float mat[16];
cameraRotation.toMatrix(mat);
glMultMatrixf(mat);
if (display_vortons) {
/*glEnable(GL_LIGHT0);
glEnable(GL_LIGHTING);*/
for (vorton &v : vortons) {
//glBegin(GL_POINTS);
//glVertex3f(v.mPos[0], v.mPos[1], v.mPos[2]);
glColor3f(0.0,0.5,0.5);
glPushMatrix();
glTranslatef(v.mPos[0], v.mPos[1], v.mPos[2]);
glutSolidSphere(.03, 8,8);
glPopMatrix();
glBegin(GL_LINES);
{
glColor3f(1.0, 0.0, 0.0);
glVertex3f(v.mPos[0], v.mPos[1], v.mPos[2]);
glVertex3f(v.mPos[0]+v.mVel[0]*0.1,
v.mPos[1]+v.mVel[1]*0.1,
v.mPos[2]+v.mVel[2]*0.1);
glColor3f(0.0, 1.0, 0.0);
glVertex3f(v.mPos[0], v.mPos[1], v.mPos[2]);
glVertex3f(v.mPos[0]+v.mVorticity[0]*0.1,
v.mPos[1]+v.mVorticity[1]*0.1,
v.mPos[2]+v.mVorticity[2]*0.1);
}
glEnd();
}
}
glDisable(GL_LIGHTING);
glEnable(GL_POINT_SMOOTH);
glEnable (GL_BLEND);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glPointSize(3);
for (particle &p : tracers) {
float col = (200-p.mLife)/200.0;
glColor4f(col, col, col, (1-col)*0.05);
if (particle_lines) {
glBegin(GL_LINES);
glVertex3f(p.mPos[0], p.mPos[1], p.mPos[2]);
glVertex3f(p.mPos[0]-p.mVel[0]*gTimeStep,
p.mPos[1]-p.mVel[1]*gTimeStep,
p.mPos[2]-p.mVel[2]*gTimeStep);
glEnd();
} else {
glBegin(GL_POINTS);
glVertex3f(p.mPos[0], p.mPos[1], p.mPos[2]);
glEnd();
}
}
}
glPopMatrix();
if (show_info)
print_info();
glutSwapBuffers();
}
