win32gl/test/shader/ShaderPlaidsBench.cpp

   1 #include <psychlops.h>
   2 using namespace Psychlops;
   3
   4 void psychlops_main() {
   5         Canvas cnvs(1024,768,Canvas::window);
   6         //Canvas cnvs(Canvas::fullscreen);
   7         cnvs.watchFPS();
   8         cnvs.showFPS();
   9         Mouse::show();
  10
  11         const int N = 2500;
  12         Figures::ShaderGaborAlpha *plaid;
  13         plaid = new Figures::ShaderGaborAlpha[N];
  14         for(int y=0; y<N; y++) {
  15                 plaid[y].phase = random(2*PI);
  16                 plaid[y].contrast = random(0.5);
  17                 plaid[y].wavelength = 5+random(10.0);
  18 //              plaid[y].phase2 = random(2*PI);
  19 //              plaid[y].contrast2 = random(0.5);
  20 //              plaid[y].wavelength2 = 10+random(20.0);
  21         }
  22
  23         double sigma = 6.0;
  24         int n = 100.0;
  25         Widgets::Dial dial;
  26         dial.link(sigma, 2).set(50).shift(100,100);
  27         Widgets::Slider slider;
  28         slider.link(n, Interval(0,2500), 4).set(200, 30).centering();
  29
  30         while(!Keyboard::esc.pushed()) {
  31                 cnvs.clear(Color::gray);
  32                 if(slider.changed()) for(int i=0; i<n; i++) plaid[i].centering(Psychlops::random(cnvs.getWidth()), Psychlops::random(cnvs.getHeight()));
  33                 for(int i=0; i<n; i++) {
  34                         plaid[i].resize(sigma*8, sigma*8);
  35                         plaid[i].phase += PI/6;
  36                         plaid[i].wavelength = plaid[i].wavelength + .5*sin(plaid[i].phase);
  37                         plaid[i].orientation = -atan2(plaid[i].getCenter().x-cnvs.mouse().x, plaid[i].getCenter().y-cnvs.mouse().y);
  38 //                      plaid[i].phase2 += PI/6;
  39 //                      plaid[i].wavelength2 = plaid[i].wavelength2 + .5*sin(plaid[i].phase2);
  40 //                      plaid[i].orientation2 = -PI/2-atan2(plaid[i].getCenter().x-cnvs.mouse().x, plaid[i].getCenter().y-cnvs.mouse().y);\r
  41                         plaid[i].alpha = 0.5;
  42                         plaid[i].draw();
  43                 }
  44                 dial.draw();
  45                 slider.draw();
  46                 cnvs.var(sigma*8, dial.getDatum().x, dial.getDatum().y);
  47                 cnvs.var(n, slider.getDatum().x, slider.getDatum().y);
  48                 cnvs.var(pow(floor(sigma), 2)*n, 200, 50, Color::green);
  49                 cnvs.flip();
  50         }
  51         delete [] plaid;
  52 }
  53