void display()
{
using namespace Eigen;
using namespace igl;
using namespace std;
if(!trackball_on && tot_num_samples < 10000)
{
if(S.size() == 0)
{
S.resize(V.rows());
S.setZero();
}
VectorXd Si;
const int num_samples = 20;
igl::embree::ambient_occlusion(ei,V,N,num_samples,Si);
S *= (double)tot_num_samples;
S += Si*(double)num_samples;
tot_num_samples += num_samples;
S /= (double)tot_num_samples;
}
// Convert to 1-intensity
C.conservativeResize(S.rows(),3);
if(ao_on)
{
C<<S,S,S;
C.array() = (1.0-ao_factor*C.array());
}else
{
C.setConstant(1.0);
}
if(ao_normalize)
{
C.col(0) *= ((double)C.rows())/C.col(0).sum();
C.col(1) *= ((double)C.rows())/C.col(1).sum();
C.col(2) *= ((double)C.rows())/C.col(2).sum();
}
C.col(0) *= color(0);
C.col(1) *= color(1);
C.col(2) *= color(2);
glClearColor(back[0],back[1],back[2],0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// All smooth points
glEnable( GL_POINT_SMOOTH );
glDisable(GL_LIGHTING);
if(lights_on)
{
lights();
}
push_scene();
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
glEnable(GL_NORMALIZE);
glEnable(GL_COLOR_MATERIAL);
glColorMaterial(GL_FRONT_AND_BACK,GL_AMBIENT_AND_DIFFUSE);
push_object();
// Draw the model
// Set material properties
glEnable(GL_COLOR_MATERIAL);
igl::opengl2::draw_mesh(V,F,N,C);
pop_object();
// Draw a nice floor
glPushMatrix();
const double floor_offset =
-2./bbd*(V.col(1).maxCoeff()-mid(1));
glTranslated(0,floor_offset,0);
const float GREY[4] = {0.5,0.5,0.6,1.0};
const float DARK_GREY[4] = {0.2,0.2,0.3,1.0};
igl::opengl2::draw_floor(GREY,DARK_GREY);
glPopMatrix();
pop_scene();
igl::opengl::report_gl_error();
TwDraw();
glutSwapBuffers();
glutPostRedisplay();
}
