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/gist:bcc82542335778333a0a

Created June 18, 2014 14:01
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gistfile1.pde
int[][] result;
float time;
void setup() {
setup_();
result = new int[width*height][3];
}
void draw() {
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++) {
time = 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 | (result[i][0]/samplesPerFrame) << 16 |
(result[i][1]/samplesPerFrame) << 8 | (result[i][2]/samplesPerFrame);
updatePixels();
saveFrame("f###.gif");
if (frameCount==numFrames)
exit();
}
//////////////////////////////////////////////////////////////////////////////
int samplesPerFrame = 64;
int numFrames = 150;
float shutterAngle = .8;
void setup_() {
size(500,500);
smooth(4);
noStroke();
rectMode(CENTER);
}
float w = 6.5, h = 150;
float t;
float pp = .08;
float sc;
// by dave @ beesandbombs.tumblr.com
void draw_() {
t = time + 4;
background(255,0,0);
pushMatrix();
translate(width/2,height/2);
for(int i=0; i<12; i++){
fill(255*((i+20)%2));
pushMatrix();
rotate(QUARTER_PI*i + HALF_PI*t);
sc = 0.0001*pow(pp,i-2*t);
rect(0,0,w*sc,h*sc);
rect(0,0,h*sc,w*sc);
popMatrix();
}
popMatrix();
}
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