Function createVortex

geometry.js:108–136

(i, count)

}

function createVortex(i, count) {
    // Vortex parameters
    const height = 60;        // Total height of the vortex
    const maxRadius = 35;     // Maximum radius at the top
    const minRadius = 5;      // Minimum radius at the bottom
    const numRotations = 3;   // Number of full rotations from top to bottom
    
    // Calculate normalized height position (0 = bottom, 1 = top)
    const t = i / count;
    
    // Add some randomness to distribute particles more naturally
    const randomOffset = 0.05 * Math.random();
    const heightPosition = t + randomOffset;
    
    // Calculate radius that decreases from top to bottom
    const radius = minRadius + (maxRadius - minRadius) * heightPosition;
    
    // Calculate angle with more rotations at the bottom
    const angle = numRotations * Math.PI * 2 * (1 - heightPosition) + (i * 0.1);
    
    // Calculate the vertical position (from bottom to top)
    const y = (heightPosition - 0.5) * height;
    
    return new THREE.Vector3(
        Math.cos(angle) * radius,
        y,
        Math.sin(angle) * radius
    );
}

function createGalaxy(i, count) {
    // Galaxy parameters