/**
 * Procedural geometry generation for 3D primitives.
 * Generates vertex positions and indices for instanced rendering.
 */
export interface GeometryData {
    positions: Float32Array;
    indices: Uint16Array;
    vertexCount: number;
    indexCount: number;
}
/**
 * Generate icosphere geometry (subdivided icosahedron).
 * Good for spherical bubbles with uniform vertex distribution.
 */
export declare function createIcosphere(subdivisions?: number): GeometryData;
/**
 * Generate UV sphere geometry.
 * Good for textured spheres, less uniform distribution.
 */
export declare function createUVSphere(segments?: number, rings?: number): GeometryData;
/**
 * Generate low-poly cube geometry.
 * Fastest option, good for distant/small bubbles.
 */
export declare function createCube(): GeometryData;
/**
 * Generate billboard quad (always faces camera).
 * Most efficient for large numbers of small points.
 */
export declare function createBillboardQuad(): GeometryData;
/**
 * Generate a standard AABB cube for voxels.
 */
export declare function createVoxelCube(): GeometryData;