Created
January 12, 2019 13:55
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rect spiral
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int[][] result; | |
float t, c; | |
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), ia = atan(sqrt(.5)); | |
void push() { | |
pushMatrix(); | |
pushStyle(); | |
} | |
void pop() { | |
popStyle(); | |
popMatrix(); | |
} | |
float c01(float g) { | |
return constrain(g, 0, 1); | |
} | |
void draw() { | |
if (recording) { | |
for (int i=0; i<width*height; i++) | |
for (int a=0; a<3; a++) | |
result[i][a] = 0; | |
c = 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(); | |
} else if (preview) { | |
c = mouseY*1.0/height; | |
if (mousePressed) | |
println(c); | |
t = (millis()/(20.0*numFrames))%1; | |
draw_(); | |
} else { | |
t = mouseX*1.0/width; | |
c = mouseY*1.0/height; | |
if (mousePressed) | |
println(c); | |
draw_(); | |
} | |
} | |
////////////////////////////////////////////////////////////////////////////// | |
int samplesPerFrame = 4; | |
int numFrames = 120; | |
float shutterAngle = .6; | |
boolean recording = false, | |
preview = true; | |
void setup() { | |
size(750, 750, P3D); | |
smooth(8); | |
rectMode(CENTER); | |
pixelDensity(recording ? 1 : 2); | |
result = new int[width*height][3]; | |
fill(32); | |
noStroke(); | |
blendMode(MULTIPLY); | |
} | |
float x, y, z, tt; | |
int N = 28; | |
float l = 450; | |
float W = l/(2*N), w, h = l/8; | |
color[] colours = {#1FEBFF, #F012DE, #FFEC20}; | |
void rects(float q){ | |
push(); | |
scale(1, .9); | |
for (int i=-N; i<=N; i++) { | |
for (int j=-4; j<=4; j++) { | |
x = map(i, -N, N, -l/2, l/2); | |
y = map(j, -4, 4, -l/2, l/2); | |
w = map(cos(TWO_PI*q + atan2(x,y) - 0.02*dist(x,y,0,0)),1,-1,W*.25,W*1.75); | |
if ((i+j)%2 != 0) | |
rect(x, y, w, h); | |
} | |
} | |
pop(); | |
} | |
void draw_() { | |
background(250); | |
push(); | |
translate(width/2, height/2); | |
for(int i=0; i<3; i++){ | |
push(); | |
translate(-1+i,0); | |
fill(colours[i]); | |
rects(t+.05*i); | |
pop(); | |
} | |
pop(); | |
} |
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