Skip to content// StreakField — signal simulation
const GRID = 128; // flow potential lattice
let phase = 0; // A→B morph, ~14s per epoch
const curl = (x, y) => {
const dx = sample(x + h, y) - sample(x - h, y);
const dy = sample(x, y + h) - sample(x, y - h);
return [dy * FLOW, -dx * FLOW]; // divergence-free: pure swirl
};
for (let i = 0; i < P; i++) {
const [u, v] = curl(px[i], py[i]);
px[i] += (u + vortex.x + scatter.x) * dt * rush;
py[i] += (v + vortex.y + scatter.y) * dt * rush;
// cursor crush: flash teal, kick outward, spring home
if (d2(ptr, i) < R && ptr.speed > MIN) {
flash[i] = 1;
kick(i, ptr, (1 - d2 / R) * ptr.speed * IMPULSE);
}
charge[i] = Math.max(flash[i] *= COOL, trailGlow(px[i], py[i]));
}
// trails: fade pass 4.5% → filaments persist ~25 frames
fade(fbo, 0.045); draw(points, ADDITIVE); composite(fbo, screen);
// StreakField — signal simulation
const GRID = 128; // flow potential lattice
let phase = 0; // A→B morph, ~14s per epoch
const curl = (x, y) => {
const dx = sample(x + h, y) - sample(x - h, y);
const dy = sample(x, y + h) - sample(x, y - h);
return [dy * FLOW, -dx * FLOW]; // divergence-free: pure swirl
};
for (let i = 0; i < P; i++) {
const [u, v] = curl(px[i], py[i]);
px[i] += (u + vortex.x + scatter.x) * dt * rush;
py[i] += (v + vortex.y + scatter.y) * dt * rush;
// cursor crush: flash teal, kick outward, spring home
if (d2(ptr, i) < R && ptr.speed > MIN) {
flash[i] = 1;
kick(i, ptr, (1 - d2 / R) * ptr.speed * IMPULSE);
}
charge[i] = Math.max(flash[i] *= COOL, trailGlow(px[i], py[i]));
}
// trails: fade pass 4.5% → filaments persist ~25 frames
fade(fbo, 0.045); draw(points, ADDITIVE); composite(fbo, screen);
// StreakField — signal simulation
const GRID = 128; // flow potential lattice
let phase = 0; // A→B morph, ~14s per epoch
const curl = (x, y) => {
const dx = sample(x + h, y) - sample(x - h, y);
const dy = sample(x, y + h) - sample(x, y - h);
return [dy * FLOW, -dx * FLOW]; // divergence-free: pure swirl
};
for (let i = 0; i < P; i++) {
const [u, v] = curl(px[i], py[i]);
px[i] += (u + vortex.x + scatter.x) * dt * rush;
py[i] += (v + vortex.y + scatter.y) * dt * rush;
// cursor crush: flash teal, kick outward, spring home
if (d2(ptr, i) < R && ptr.speed > MIN) {
flash[i] = 1;
kick(i, ptr, (1 - d2 / R) * ptr.speed * IMPULSE);
}
charge[i] = Math.max(flash[i] *= COOL, trailGlow(px[i], py[i]));
}
// trails: fade pass 4.5% → filaments persist ~25 frames
fade(fbo, 0.045); draw(points, ADDITIVE); composite(fbo, screen);
// StreakField — signal simulation
const GRID = 128; // flow potential lattice
let phase = 0; // A→B morph, ~14s per epoch
const curl = (x, y) => {
const dx = sample(x + h, y) - sample(x - h, y);
const dy = sample(x, y + h) - sample(x, y - h);
return [dy * FLOW, -dx * FLOW]; // divergence-free: pure swirl
};
for (let i = 0; i < P; i++) {
const [u, v] = curl(px[i], py[i]);
px[i] += (u + vortex.x + scatter.x) * dt * rush;
py[i] += (v + vortex.y + scatter.y) * dt * rush;
// cursor crush: flash teal, kick outward, spring home
if (d2(ptr, i) < R && ptr.speed > MIN) {
flash[i] = 1;
kick(i, ptr, (1 - d2 / R) * ptr.speed * IMPULSE);
}
charge[i] = Math.max(flash[i] *= COOL, trailGlow(px[i], py[i]));
}
// trails: fade pass 4.5% → filaments persist ~25 frames
fade(fbo, 0.045); draw(points, ADDITIVE); composite(fbo, screen);
// StreakField — signal simulation
const GRID = 128; // flow potential lattice
let phase = 0; // A→B morph, ~14s per epoch
const curl = (x, y) => {
const dx = sample(x + h, y) - sample(x - h, y);
const dy = sample(x, y + h) - sample(x, y - h);
return [dy * FLOW, -dx * FLOW]; // divergence-free: pure swirl
};
for (let i = 0; i < P; i++) {
const [u, v] = curl(px[i], py[i]);
px[i] += (u + vortex.x + scatter.x) * dt * rush;
py[i] += (v + vortex.y + scatter.y) * dt * rush;
// cursor crush: flash teal, kick outward, spring home
if (d2(ptr, i) < R && ptr.speed > MIN) {
flash[i] = 1;
kick(i, ptr, (1 - d2 / R) * ptr.speed * IMPULSE);
}
charge[i] = Math.max(flash[i] *= COOL, trailGlow(px[i], py[i]));
}
// trails: fade pass 4.5% → filaments persist ~25 frames
fade(fbo, 0.045); draw(points, ADDITIVE); composite(fbo, screen);
// StreakField — signal simulation
const GRID = 128; // flow potential lattice
let phase = 0; // A→B morph, ~14s per epoch
const curl = (x, y) => {
const dx = sample(x + h, y) - sample(x - h, y);
const dy = sample(x, y + h) - sample(x, y - h);
return [dy * FLOW, -dx * FLOW]; // divergence-free: pure swirl
};
for (let i = 0; i < P; i++) {
const [u, v] = curl(px[i], py[i]);
px[i] += (u + vortex.x + scatter.x) * dt * rush;
py[i] += (v + vortex.y + scatter.y) * dt * rush;
// cursor crush: flash teal, kick outward, spring home
if (d2(ptr, i) < R && ptr.speed > MIN) {
flash[i] = 1;
kick(i, ptr, (1 - d2 / R) * ptr.speed * IMPULSE);
}
charge[i] = Math.max(flash[i] *= COOL, trailGlow(px[i], py[i]));
}
// trails: fade pass 4.5% → filaments persist ~25 frames
fade(fbo, 0.045); draw(points, ADDITIVE); composite(fbo, screen);
// StreakField — signal simulation
const GRID = 128; // flow potential lattice
let phase = 0; // A→B morph, ~14s per epoch
const curl = (x, y) => {
const dx = sample(x + h, y) - sample(x - h, y);
const dy = sample(x, y + h) - sample(x, y - h);
return [dy * FLOW, -dx * FLOW]; // divergence-free: pure swirl
};
for (let i = 0; i < P; i++) {
const [u, v] = curl(px[i], py[i]);
px[i] += (u + vortex.x + scatter.x) * dt * rush;
py[i] += (v + vortex.y + scatter.y) * dt * rush;
// cursor crush: flash teal, kick outward, spring home
if (d2(ptr, i) < R && ptr.speed > MIN) {
flash[i] = 1;
kick(i, ptr, (1 - d2 / R) * ptr.speed * IMPULSE);
}
charge[i] = Math.max(flash[i] *= COOL, trailGlow(px[i], py[i]));
}
// trails: fade pass 4.5% → filaments persist ~25 frames
fade(fbo, 0.045); draw(points, ADDITIVE); composite(fbo, screen);
// StreakField — signal simulation
const GRID = 128; // flow potential lattice
let phase = 0; // A→B morph, ~14s per epoch
const curl = (x, y) => {
const dx = sample(x + h, y) - sample(x - h, y);
const dy = sample(x, y + h) - sample(x, y - h);
return [dy * FLOW, -dx * FLOW]; // divergence-free: pure swirl
};
for (let i = 0; i < P; i++) {
const [u, v] = curl(px[i], py[i]);
px[i] += (u + vortex.x + scatter.x) * dt * rush;
py[i] += (v + vortex.y + scatter.y) * dt * rush;
// cursor crush: flash teal, kick outward, spring home
if (d2(ptr, i) < R && ptr.speed > MIN) {
flash[i] = 1;
kick(i, ptr, (1 - d2 / R) * ptr.speed * IMPULSE);
}
charge[i] = Math.max(flash[i] *= COOL, trailGlow(px[i], py[i]));
}
// trails: fade pass 4.5% → filaments persist ~25 frames
fade(fbo, 0.045); draw(points, ADDITIVE); composite(fbo, screen);
// StreakField — signal simulation
const GRID = 128; // flow potential lattice
let phase = 0; // A→B morph, ~14s per epoch
const curl = (x, y) => {
const dx = sample(x + h, y) - sample(x - h, y);
const dy = sample(x, y + h) - sample(x, y - h);
return [dy * FLOW, -dx * FLOW]; // divergence-free: pure swirl
};
for (let i = 0; i < P; i++) {
const [u, v] = curl(px[i], py[i]);
px[i] += (u + vortex.x + scatter.x) * dt * rush;
py[i] += (v + vortex.y + scatter.y) * dt * rush;
// cursor crush: flash teal, kick outward, spring home
if (d2(ptr, i) < R && ptr.speed > MIN) {
flash[i] = 1;
kick(i, ptr, (1 - d2 / R) * ptr.speed * IMPULSE);
}
charge[i] = Math.max(flash[i] *= COOL, trailGlow(px[i], py[i]));
}
// trails: fade pass 4.5% → filaments persist ~25 frames
fade(fbo, 0.045); draw(points, ADDITIVE); composite(fbo, screen);