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@beesandbombs
Created March 21, 2021 00:26
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hex zoom
// by dave @beesandbombs
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));
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);
t %= 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###.png");
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 = 8;
int numFrames = 240;
float shutterAngle = .5;
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];
strokeWeight(2);
noFill();
blendMode(ADD);
}
color[] cs = { #d00000, #00d000, #0000d0};
float x, y, z, tt;
int N = 8;
float r = 20;
float qq, tick;
void hex(float q) {
beginShape();
for (int i=0; i<3; i++) {
for (int j=0; j<64; j++) {
qq = j/64.0;
x = lerp(-r*mn, r*mn, qq);
y = map(j, 0, 64, r, r/2);
tick = c01(map(qq, .25, .75, 0, 1));
tick = abs(2*tick-1);
tick = map(tick, 0, 1, r/2*ease(c01(1.5*q-0.5*tick)), 0);
y = map(abs(2*qq-1), 0, 1, r, r/2) - tick;
vertex(x*cos(TWO_PI*i/3) + y*sin(TWO_PI*i/3),
y*cos(TWO_PI*i/3) - x*sin(TWO_PI*i/3));
}
}
endShape();
y = lerp(r, r/2, ease(c01(1.5*q)));
for (int i=0; i<3; i++) {
push();
rotate(TWO_PI*i/3);
line(0, y, 0, y-r/2*ease(c01(1.5*q-.25)));
pop();
}
}
float sp,dd ;
void draw_() {
background(20);
push();
translate(width/2, height/2);
for (int a=0; a<3; a++) {
r = 36*pow(2, t-0.005*a);
sp = 2*r*mn;
stroke(cs[a]);
for (int i=-N; i<N; i++) {
for (int j=-N; j<N; j++) {
x = i*sp;
y = (j+2/3.0)*mn*sp;
if (j%2 != 0)
x += .5*sp;
dd = dist(x,y,0,0);
tt = c01(2.5*t-0.0025*dd - 0.025*a);
tt = .5*tt + .5*ease(tt);
push();
translate(x, y);
hex(tt);
pop();
}
}
}
pop();
}
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