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Created November 2, 2014 13:55
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int[][] result;
float t;
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);
void setup() {
setup_();
result = new int[width*height][3];
}
void draw() {
if (!recording) {
t = mouseX*1.0/width;
draw_();
} else {
for (int i=0; i<width*height; i++)
for (int a=0; a<3; a++)
result[i][a] = 0;
for (int sa=0; sa<samplesPerFrame; sa++) {
t = map(frameCount-1 + sa*shutterAngle/samplesPerFrame, 0, numFrames, 0, 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###.gif");
if (frameCount==numFrames)
exit();
}
}
//////////////////////////////////////////////////////////////////////////////
int samplesPerFrame = 8;
int numFrames = 190;
float shutterAngle = .6;
boolean recording = true;
void setup_() {
size(500, 500,P2D);
smooth(8);
rectMode(CENTER);
fill(32);
noStroke();
}
float x, y, tt;
int N = 32;
float r = 24, sp = 4.5*r;
void quarter(float q) {
beginShape();
for (int i=0; i<=N; i++) {
x = map(i, 0, N, -r*sqrt(.5), r*sqrt(.5));
y = lerp(-sqrt(r*r - x*x), abs(x)-r, q);
vertex(x, y);
}
for (int i=0; i<=N; i++) {
x = map(i, N, 0, -r*sqrt(.5), r*sqrt(.5));
y = lerp(-abs(x), sqrt(r*r-x*x)-r, q);
vertex(x, y);
}
endShape();
}
void full(float q) {
for (int i=0; i<4; i++) {
pushMatrix();
rotate(HALF_PI*i);
translate(0,lerp(.5,-.5*(sp-2*r)-.5,ease(q,2)));
quarter(ease(q,3));
popMatrix();
}
}
void draw_() {
background(250);
pushMatrix();
translate(width/2, height/2);
for (int i=-6; i<=6; i++) {
for (int j=-6; j<=6; j++) {
x = i*sp;
y = j*.5*sp;
if(j%2 != 0)
x += .5*sp;
tt = map(cos(TWO_PI*t - 0.004*dist(x,y,0,0)),1,-1,0,1);
pushMatrix();
translate(x, y);
full(tt);
popMatrix();
}
}
popMatrix();
}
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