Blob.pde
class Blob {
PVector pos;
float r;
float rhalf;
PVector vel;
Blob() {
r=60;//r = random(120, 240);
pos = new PVector(random(r, width-r), random(r, height-r));
vel = PVector.random2D();
vel.mult(random(2,4));
}
void update() {
if(((pos.x + r) >= width) || ((pos.x - r) <= 0)) {
vel.x *= -1;
}
if(((pos.y + r) >= height) || ((pos.y - r) <= 0)) {
vel.y *= -1;
}
pos.add(vel);
}
void show() {
noFill();
stroke(0);
strokeWeight(4);
ellipseMode(CENTER);
ellipse(pos.x, pos.y, r*2, r*2);
}
}
metaballs.pde
color bgColor;
color blobColor;
Blob[] blobs = new Blob[6];
void setup() {
size(600, 600);
//colorMode(HSB, 100);
//bgColor = color(0, 27, 30);
//blobColor = color(35, 97, 103);
bgColor = color(11, 18, 44);
blobColor = color(252, 3, 232);
for(int i = 0; i < blobs.length; i++) {
blobs[ i ] = new Blob();
}
}
void draw() {
background(0);
loadPixels();
for(int x = 0; x < width; x++) {
for(int y = 0; y < height; y++) {
int index = (x + (y * width));
float sum = 0;
for(Blob b : blobs) {
float d = dist(x, y, b.pos.x, b.pos.y);
sum += (80 * b.r) / d;
}
float sum_mapped = map(sum, 0, (width * 0.9), 0, 100);
//pixels[ index ] = color(72, (100 - sum_mapped), sum_mapped);
if(sum_mapped > 40) {
pixels[ index ] = blobColor;
} else if(sum_mapped > 30) {
pixels[ index ] = lerpColor(blobColor, bgColor, map(sum_mapped, 30, 40, 1, 0.8));
} else {
pixels[ index ] = bgColor;
}
//pixels[ index ] = color(55, 100, sum_mapped*0.8);
}
}
updatePixels();
for(Blob b : blobs) {
b.update();
//b.show();
}
if(frameCount == 50) { save("preview.png"); }
}
