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Created September 8, 2014 22:07
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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 = 4;
int numFrames = 100;
float shutterAngle = .85;
boolean recording = false;
void setup_() {
size(800, 600, P2D);
smooth(8);
stroke(250);
strokeWeight(5);
}
float x, y, tt;
int N = 12;
float l = 95, ll;
float aa;
void draw_() {
background(#B74E39);
pushMatrix();
translate(width/2, height/2);
scale(1.25);
for (int a=-2; a<N; a++) {
aa = a+2*t;
ll = .28*aa*l;
tt = ease(constrain(.3*aa-.7, 0, 1));
if (aa>=0) {
for (int i=0; i<6; i++) {
strokeWeight(7);
stroke(248);
if(aa<=.1)
strokeWeight(map(aa,0,.1,0,7));
if(aa>=5)
strokeWeight(map(aa,5,6,7,0));
pushMatrix();
rotate(TWO_PI*(i+.5*a)/6);
line(-ll/2, ll*mn, lerp(-ll/2, 0, 1-tt), ll*mn);
line(ll/2, ll*mn, lerp(ll/2, 0, 1-tt), ll*mn);
popMatrix();
}
}
}
popMatrix();
}
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