//#region src/pipeline/convexHull.d.ts
/**
 * 2D convex hull + fan triangulation for the per-batch envelope
 * geometry (tight-mesh Option A): all sprites in a batch share one
 * n-gon computed as the hull of the atlas's frame polygons.
 */
/**
 * Andrew's monotone chain over `[x, y]` points. Returns hull points in
 * counter-clockwise order (three's front-face winding). Collinear
 * points are dropped. Input under 3 distinct points returns [].
 */
declare function convexHull(points: ReadonlyArray<readonly [number, number]>): [number, number][];
/**
 * Fan-triangulate a convex CCW polygon: indices `(0, i, i+1)`.
 */
declare function fanTriangulate(vertexCount: number): number[];
//#endregion
export { convexHull, fanTriangulate };
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