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@beesandbombs
Created July 11, 2017 22:48
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chequered waves
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("d###.gif");
if (frameCount==numFrames)
exit();
}
}
//////////////////////////////////////////////////////////////////////////////
int samplesPerFrame = 4;
int numFrames = 240;
float shutterAngle = .5;
boolean recording = false;
void setup() {
size(800, 600, P3D);
result = new int[width*height][3];
rectMode(CENTER);
fill(32);
noStroke();
}
float d_;
void vert(float x_, float y_){
d_ = sq(x_)+sq(y_);
vertex(x_,y_,110*sin(TWO_PI*t - .000058*d_)*exp(-.000022*d_));
}
void element(float x1, float y1, float x2, float y2) {
vert(x1, y1);
vert(x2, y1);
vert(x2, y2);
vert(x2, y2);
vert(x1, y2);
vert(x1, y1);
}
void patch(float x1, float y1, float x2, float y2) {
for (int i=0; i<N; i++)
for (int j=0; j<N; j++)
element(map(i, 0, N, x1, x2), map(j, 0, N, y1, y2),
map(i+1, 0, N, x1, x2), map(j+1, 0, N, y1, y2));
}
int N = 8;
float l = 40;
void draw_() {
background(250);
push();
translate(width/2, height/2 - 50);
rotateX(.75);
rotate(QUARTER_PI + HALF_PI*t);
fill(32);
noStroke();
beginShape(TRIANGLES);
for (int i=-4; i<5; i++)
for (int j=-4; j<5; j++)
if ((i+j)%2 == 0)
patch(l*(i-.5), l*(j-.5), l*(i+.5), l*(j+.5));
endShape();
push();
fill(32,140,220);
scale(1,1,-1);
beginShape(TRIANGLES);
for (int i=-4; i<5; i++)
for (int j=-4; j<5; j++)
if ((i+j)%2 != 0)
patch(l*(i-.5), l*(j-.5), l*(i+.5), l*(j+.5));
endShape();
pop();
pop();
}
@shaunlebron
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