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anonymous /gist:bb1e911cc54f0f695821
Created Sep 21, 2014

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// by dave @ bees & bombs >:)
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 = 120;
float shutterAngle = .45;
boolean recording = false;
void setup_() {
size(500, 500, P2D);
smooth(8);
rectMode(CENTER);
stroke(248);
strokeWeight(1.55);
noFill();
}
float x, y, tt;
int N = 12;
float sp = 39;
void draw_() {
background(32);
pushMatrix();
translate(width/2, height/2);
rotate(TWO_PI*t/6);
for (int a=0; a<3; a++) {
pushMatrix();
rotate(TWO_PI*a/3);
for (int i=-N; i<=N; i++) {
y = i*sp*pow(2, t);
tt = constrain(1.09*t - 0.00275*abs(y) + .075, 0, 1);
if (i%2 == 0)
x = width;
else
x = width*tt;
if (x>0)
line(-x, y, x, y);
}
popMatrix();
}
popMatrix();
}
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