Created
October 20, 2014 22:21
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// by david whyte >:) | |
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 = 150; | |
float shutterAngle = .7; | |
boolean recording = true; | |
void setup_() { | |
size(500, | |
500, P2D); | |
smooth(8); | |
stroke(32); | |
noFill(); | |
strokeWeight(3.5); | |
} | |
float x, y, tt; | |
int N = 16; | |
float r = 16; | |
int n = 4; | |
float sp = 4.5*r; | |
float th; | |
float cx, cy; | |
void thing(float q) { | |
pushMatrix(); | |
beginShape(); | |
for (int i=0; i<N; i++) { | |
tt = map(cos(TWO_PI*q + HALF_PI*i/(N-1)),1,-1,0,1); | |
tt = ease(constrain(1.5*tt - 0.25,0,1),1.8); | |
th = map(i, 0, N-1, -QUARTER_PI, QUARTER_PI); | |
x = r*sin(th); | |
y = lerp(r*cos(th), .5*sp-r*cos(th), tt); | |
vertex(x, y); | |
} | |
endShape(); | |
popMatrix(); | |
} | |
void draw_() { | |
background(250); | |
pushMatrix(); | |
translate(width/2, height/2); | |
for (int a=-n; a<=n; a++) { | |
for (int b=-2*n; b<=2*n; b++) { | |
pushMatrix(); | |
cx = a*sp; | |
cy = b*.5*sp; | |
if(b%2 != 0) | |
cx += .5*sp; | |
translate(cx, cy); | |
for (int i=0; i<4; i++) { | |
pushMatrix(); | |
rotate(HALF_PI*i); | |
thing(t - 0.0008*sqrt(cx*cx+cy*cy)); | |
popMatrix(); | |
} | |
popMatrix(); | |
} | |
} | |
popMatrix(); | |
} |
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