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Topic: cubefield (Read 1058 times) |
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mawend
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cubefield
« on: Jan 21st, 2003, 5:06am » |
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First simple P5 program. Clunky code, to be sure, but a fun result in a very short amount of time.
Mark
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// cubefield
// by Mark Wendell
// silly little 3d exercise, but fun
void setup()
{
size(500, 500);
colorMode(HSB,1);
background(.2);
noStroke();
lights();
// add another light, according to the trick in the
// suggestions forum. Needed because the cubes are
// pushed back in space, past the reach of the
// default lights.
g.lightKind[2] = DIFFUSE;
g.lightX[2] = 1.0;
g.lightY[2] = 20.0;
g.lightZ[2] = -20.5;
g.lightR[2] = 1.0;
g.lightG[2] = 1.0;
g.lightB[2] = 1.0;
}
void loop()
{
float box_size = 50;
float ah = (width+height)/2;
translate (width/2, height/2, -200);
rotateX(PI/3);
rotateZ(millis() * .0002); // spin
for (int i = -width/2; i <= width/2; i=i+(int)box_size) {
push();
for (int j = -height/2; j <= height/2; j=j+(int)box_size) {
push();
float md = 1-distance(mouseX,mouseY,i+width/2,j+width/2)/ah;
translate (i, j, 0);
rotateZ(8*md);
fill (pow(md,6) * .3 + .7, 1-md, pow(md,2)*.5 + .5 );
box(box_size*.5+md*10,box_size*.5+md*10, pow(md,6) * 300 + 10);
pop();
}
pop();
}
}
// 2D Distance by REAS <http://www.groupc.net>
float distance(float x1, float y1, float x2, float y2) {
return sqrt(sq(x1-x2) + sq(y1-y2));
}
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