Created
June 26, 2018 11:22
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flower donut
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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) { | |
t = mouseX*1.0/width; | |
c = mouseY*1.0/height; | |
if (mousePressed) | |
println(c); | |
draw_(); | |
} else { | |
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("g###.gif"); | |
if (frameCount==numFrames) | |
exit(); | |
} | |
} | |
////////////////////////////////////////////////////////////////////////////// | |
int samplesPerFrame = 4; | |
int numFrames = 180; | |
float shutterAngle = .6; | |
boolean recording = false; | |
void setup() { | |
size(720, 720, P3D); | |
pixelDensity(recording ? 1 : 2); | |
smooth(8); | |
result = new int[width*height][3]; | |
noFill(); | |
strokeWeight(10); | |
ortho(); | |
} | |
void strand(float q) { | |
beginShape(); | |
for (int i=0; i<n; i++) { | |
qq = i*1.0/(n-1); | |
r = lerp(r1, r2, qq); | |
th = om*sin(TWO_PI*t - PI*qq + q); | |
vertex(r*cos(th), r*sin(th)); | |
} | |
endShape(); | |
} | |
int n = 60; | |
float r1 = 75, r2 = 255, r, th, om = .4; | |
float qq; | |
float x, y, z, tt; | |
int N = 12; | |
void draw_() { | |
blendMode(MULTIPLY); | |
background(250); | |
push(); | |
translate(width/2, height/2); | |
for (int i=0; i<N; i++) { | |
push(); | |
rotate(TWO_PI*i/N); | |
stroke(#FFDC00); | |
strand(0); | |
stroke(#39CCCC); | |
strand(TWO_PI/3); | |
stroke(#F012BE); | |
strand(-TWO_PI/3); | |
pop(); | |
} | |
// MASKS ! | |
push(); | |
translate(0, 0, 1); | |
blendMode(NORMAL); | |
fill(250); | |
noStroke(); | |
ellipse(0, 0, 2*r1+5, 2*r1+5); | |
beginShape(TRIANGLE_STRIP); | |
for (int i=0; i<=500; i++) { | |
vertex((r2-5)*cos(TWO_PI*i/500), (r2-5)*sin(TWO_PI*i/500)); | |
vertex(1000*cos(TWO_PI*i/500), 1000*sin(TWO_PI*i/500)); | |
} | |
endShape(); | |
pop(); | |
pop(); | |
} |
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