playcanvas/build/playcanvas/src/core/math/kernel.js

Open-source WebGL/WebGPU 3D engine for the web

class Kernel {
	static concentric(numRings, numPoints) {
		const kernel = [];
		kernel.push(0, 0);
		const spacing = 2 * Math.PI / numRings / numPoints;
		for (let ring = 1; ring <= numRings; ring++) {
			const radius = ring / numRings;
			const circumference = 2 * Math.PI * radius;
			const pointsPerRing = Math.max(1, Math.floor(circumference / spacing));
			const angleStep = 2 * Math.PI / pointsPerRing;
			for (let point = 0; point < pointsPerRing; point++) {
				const angle = point * angleStep;
				const x = radius * Math.cos(angle);
				const y = radius * Math.sin(angle);
				kernel.push(x, y);
			}
		}
		return kernel;
	}
}
export {
	Kernel
};