import type { Vector4 } from "../../Maths/math.vector";
import { Mesh } from "../mesh";
import { VertexData } from "../mesh.vertexData";
import type { Scene } from "../../scene";
import type { Nullable } from "../../types";
/**
 * Creates the VertexData for an ellipsoid, defaults to a sphere
 * @param options an object used to set the following optional parameters for the box, required but can be empty
 * * segments sets the number of horizontal strips optional, default 32
 * * diameter sets the axes dimensions, diameterX, diameterY and diameterZ to the value of diameter, optional default 1
 * * diameterX sets the diameterX (x direction) of the ellipsoid, overwrites the diameterX set by diameter, optional, default diameter
 * * diameterY sets the diameterY (y direction) of the ellipsoid, overwrites the diameterY set by diameter, optional, default diameter
 * * diameterZ sets the diameterZ (z direction) of the ellipsoid, overwrites the diameterZ set by diameter, optional, default diameter
 * * arc a number from 0 to 1, to create an unclosed ellipsoid based on the fraction of the circumference (latitude) given by the arc value, optional, default 1
 * * slice a number from 0 to 1, to create an unclosed ellipsoid based on the fraction of the height (latitude) given by the arc value, optional, default 1
 * * sideOrientation optional and takes the values : Mesh.FRONTSIDE (default), Mesh.BACKSIDE or Mesh.DOUBLESIDE
 * * frontUvs only usable when you create a double-sided mesh, used to choose what parts of the texture image to crop and apply on the front side, optional, default vector4 (0, 0, 1, 1)
 * * backUVs only usable when you create a double-sided mesh, used to choose what parts of the texture image to crop and apply on the back side, optional, default vector4 (0, 0, 1, 1)
 * @returns the VertexData of the ellipsoid
 */
export declare function CreateSphereVertexData(options: {
    segments?: number;
    diameter?: number;
    diameterX?: number;
    diameterY?: number;
    diameterZ?: number;
    arc?: number;
    slice?: number;
    sideOrientation?: number;
    frontUVs?: Vector4;
    backUVs?: Vector4;
    dedupTopBottomIndices?: boolean;
}): VertexData;
/**
 * Creates a sphere mesh
 * * The parameter `diameter` sets the diameter size (float) of the sphere (default 1)
 * * You can set some different sphere dimensions, for instance to build an ellipsoid, by using the parameters `diameterX`, `diameterY` and `diameterZ` (all by default have the same value of `diameter`)
 * * The parameter `segments` sets the sphere number of horizontal stripes (positive integer, default 32)
 * * You can create an unclosed sphere with the parameter `arc` (positive float, default 1), valued between 0 and 1, what is the ratio of the circumference (latitude) : 2 x PI x ratio
 * * You can create an unclosed sphere on its height with the parameter `slice` (positive float, default1), valued between 0 and 1, what is the height ratio (longitude)
 * * You can also set the mesh side orientation with the values : BABYLON.Mesh.FRONTSIDE (default), BABYLON.Mesh.BACKSIDE or BABYLON.Mesh.DOUBLESIDE
 * * If you create a double-sided mesh, you can choose what parts of the texture image to crop and stick respectively on the front and the back sides with the parameters `frontUVs` and `backUVs` (Vector4). Detail here : https://doc.babylonjs.com/features/featuresDeepDive/mesh/creation/set#side-orientation
 * * The mesh can be set to updatable with the boolean parameter `updatable` (default false) if its internal geometry is supposed to change once created
 * @param name defines the name of the mesh
 * @param options defines the options used to create the mesh
 * @param scene defines the hosting scene
 * @returns the sphere mesh
 * @see https://doc.babylonjs.com/features/featuresDeepDive/mesh/creation/set#sphere
 */
export declare function CreateSphere(name: string, options?: {
    segments?: number;
    diameter?: number;
    diameterX?: number;
    diameterY?: number;
    diameterZ?: number;
    arc?: number;
    slice?: number;
    sideOrientation?: number;
    frontUVs?: Vector4;
    backUVs?: Vector4;
    updatable?: boolean;
}, scene?: Nullable<Scene>): Mesh;
/**
 * Class containing static functions to help procedurally build meshes
 * @deprecated use CreateSphere directly
 */
export declare const SphereBuilder: {
    CreateSphere: typeof CreateSphere;
};