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hypnosquare
int[][] result;
float t, c;
float ease(float p) {
return 3*p*p - 2*p*p*p;
}
float ease(float p, float g) {
if (p < 0.5)
return 0.5 * pow(2*p, g);
else
return 1 - 0.5 * pow(2*(1 - p), g);
}
float mn = .5*sqrt(3), ia = atan(sqrt(.5));
float c01(float g) {
return constrain(g, 0, 1);
}
void draw() {
if (recording) {
for (int i=0; i<width*height; i++)
for (int a=0; a<3; a++)
result[i][a] = 0;
c = 0;
for (int sa=0; sa<samplesPerFrame; sa++) {
t = map(frameCount-1 + sa*shutterAngle/samplesPerFrame, 0, numFrames, 0, 1);
t %= 1;
draw_();
loadPixels();
for (int i=0; i<pixels.length; i++) {
result[i][0] += pixels[i] >> 16 & 0xff;
result[i][1] += pixels[i] >> 8 & 0xff;
result[i][2] += pixels[i] & 0xff;
}
}
loadPixels();
for (int i=0; i<pixels.length; i++)
pixels[i] = 0xff << 24 |
int(result[i][0]*1.0/samplesPerFrame) << 16 |
int(result[i][1]*1.0/samplesPerFrame) << 8 |
int(result[i][2]*1.0/samplesPerFrame);
updatePixels();
saveFrame("f###.png");
if (frameCount==numFrames)
exit();
} else if (preview) {
c = mouseY*1.0/height;
if (mousePressed)
println(c);
t = (millis()/(20.0*numFrames))%1;
draw_();
} else {
t = mouseX*1.0/width;
c = mouseY*1.0/height;
if (mousePressed)
println(c);
draw_();
}
}
//////////////////////////////////////////////////////////////////////////////
int samplesPerFrame = 4;
int numFrames = 125;
float shutterAngle = .6;
boolean recording = false,
preview = false;
void setup() {
size(750, 750, P3D);
smooth(8);
rectMode(CENTER);
pixelDensity(recording ? 1 : 2);
result = new int[width*height][3];
fill(32);
noStroke();
blendMode(ADD);
}
float x, y, z, tt;
int N = 8;
float l = 50, sp = 1.2*l, D = 5, d = 4, qq;
float th;
color[] cs = {#ff0000, #00ff00, #0000ff};
void thing(float q) {
q = (q+100)%1;
for (int a=0; a<3; a++) {
fill(cs[a]);
push();
translate(a-1, 0);
for (int i=0; i<4; i++) {
push();
rotate(-HALF_PI*i);
for (int j=0; j<N; j++) {
qq = (i+(j*1.0/N))/4;
tt = (q*(a+1) + qq)%1;
d = D*(1-tt);
x = map(j, 0, N, -l/2, l/2);
y = l/2;
square(x, y, d);
}
pop();
}
pop();
}
}
void draw_() {
background(10);
push();
translate(width/2, height/2);
for (int i=-4; i<4; i++) {
for (int j=-4; j<4; j++) {
push();
translate((i+.5)*sp, (j+.5)*sp);
thing(t + atan2(i+.5, j+.5)/TWO_PI);
pop();
}
}
pop();
}
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