Created
February 21, 2017 16:32
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dancing rings :)
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// made by dw @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)); | |
void push() { | |
pushMatrix(); | |
pushStyle(); | |
} | |
void pop() { | |
popStyle(); | |
popMatrix(); | |
} | |
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("f###.gif"); | |
if (frameCount==numFrames) | |
exit(); | |
} | |
} | |
////////////////////////////////////////////////////////////////////////////// | |
int samplesPerFrame = 4; | |
int numFrames = 120; | |
float shutterAngle = .6; | |
boolean recording = false; | |
void setup() { | |
size(620, 540, P3D); | |
result = new int[width*height][3]; | |
rectMode(CENTER); | |
stroke(255); | |
colorMode(HSB,1); | |
fill(240, 32, 32); | |
noStroke(); | |
} | |
void ring(float r1, float r2, float h1, float h2) { | |
beginShape(TRIANGLE_STRIP); | |
for (int i=0; i<=N; i++) { | |
th = TWO_PI*i/N; | |
vertex(r1*cos(th), r1*sin(th), h1); | |
th = TWO_PI*(i+.5)/N; | |
vertex(r2*cos(th), r2*sin(th), h2); | |
} | |
endShape(CLOSE); | |
} | |
float x, y, z, tt; | |
float th; | |
int N = 120; | |
float z1, z2; | |
void draw_() { | |
background(.1); | |
push(); | |
translate(width/2, height/2 - 40); | |
rotateX(.76); | |
for(int i=0; i<9; i++){ | |
push(); | |
z1 = 46*cos(TWO_PI*t-.75*i); | |
z2 = 46*cos(TWO_PI*t-.75*(i+.65)); | |
fill((.1*i+.3 + 100 - t)%1,.8,1); | |
ring(10+25*i,10+25*(i+1),z1,z2); | |
pop(); | |
} | |
pop(); | |
} |
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