CBScreenSaver V0.0.2
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This demo shows a 3D face. the face comes from a mathematical formule.


                  5              -((x-u[i])^2/a[i]+(y-v[i])^2/b[i])
F(x, y) = E c[i]e
                i=0

float u[6]={.0,.0,-0.2,0.2,.0,.0};
float v[6]={.25,.0,.25,.25,-0.5,-0.2};
float a[6]={.5,.02,.04,.04,.05,.08};
float b[6]={1.0,.05,.02,.02,.05,.02};
float c[6]={.7,.3,-0.2,-0.2,.3,-0.1};

-2.0 <=X, Y <= 2.0


a preview is available on youtube

http://www.youtube.com/watch?v=JchQtEVz9Vo