/**
 * @desc Defines its {@link Camera}'s perspective projection as a frustum-shaped view volume.
 *
 * * Located at {@link Camera#frustum}.
 * * Allows to explicitly set the positions of the left, right, top, bottom, near and far planes, which is useful for asymmetrical view volumes, such as for stereo viewing.
 * * {@link Frustum#near} and {@link Frustum#far} specify the distances to the WebGL clipping planes.
 */
export class Frustum extends Component {
    /**
     * The Camera this Frustum belongs to.
     *
     * @property camera
     * @type {Camera}
     * @final
     */
    camera: any;
    _state: RenderState;
    _left: number;
    _right: number;
    _bottom: number;
    _top: number;
    _inverseMatrixDirty: boolean;
    _transposedMatrixDirty: boolean;
    /**
     * Sets the position of the Frustum's left plane on the View-space X-axis.
     *
     * Fires a {@link Frustum#left:emits} emits on change.
     *
     * @param {Number} value New left frustum plane position.
     */
    set left(arg: number);
    /**
     * Gets the position of the Frustum's left plane on the View-space X-axis.
     *
     * @return {Number} Left frustum plane position.
     */
    get left(): number;
    /**
     * Sets the position of the Frustum's right plane on the View-space X-axis.
     *
     * Fires a {@link Frustum#right:emits} emits on change.
     *
     * @param {Number} value New right frustum plane position.
     */
    set right(arg: number);
    /**
     * Gets the position of the Frustum's right plane on the View-space X-axis.
     *
     * Fires a {@link Frustum#right:emits} emits on change.
     *
     * @return {Number} Right frustum plane position.
     */
    get right(): number;
    /**
     * Sets the position of the Frustum's bottom plane on the View-space Y-axis.
     *
     * Fires a {@link Frustum#bottom:emits} emits on change.
     *
     * @emits {"bottom"} event with the value of this property whenever it changes.
     *
     * @param {Number} value New bottom frustum plane position.
     */
    set bottom(arg: number);
    /**
     * Gets the position of the Frustum's bottom plane on the View-space Y-axis.
     *
     * Fires a {@link Frustum#bottom:emits} emits on change.
     *
     * @return {Number} Bottom frustum plane position.
     */
    get bottom(): number;
    /**
     * Sets the position of the Frustum's top plane on the View-space Y-axis.
     *
     * Fires a {@link Frustum#top:emits} emits on change.
     *
     * @param {Number} value New top frustum plane position.
     */
    set top(arg: number);
    /**
     * Gets the position of the Frustum's top plane on the View-space Y-axis.
     *
     * Fires a {@link Frustum#top:emits} emits on change.
     *
     * @return {Number} Top frustum plane position.
     */
    get top(): number;
    /**
     * Sets the position of the Frustum's near plane on the positive View-space Z-axis.
     *
     * Fires a {@link Frustum#near:emits} emits on change.
     *
     * Default value is ````0.1````.
     *
     * @param {Number} value New Frustum near plane position.
     */
    set near(arg: number);
    /**
     * Gets the position of the Frustum's near plane on the positive View-space Z-axis.
     *
     * Fires a {@link Frustum#near:emits} emits on change.
     *
     * Default value is ````0.1````.
     *
     * @return {Number} Near frustum plane position.
     */
    get near(): number;
    /**
     * Sets the position of the Frustum's far plane on the positive View-space Z-axis.
     *
     * Fires a {@link Frustum#far:emits} emits on change.
     *
     * Default value is ````10000.0````.
     *
     * @param {Number} value New far frustum plane position.
     */
    set far(arg: number);
    /**
     * Gets the position of the Frustum's far plane on the positive View-space Z-axis.
     *
     * Default value is ````10000.0````.
     *
     * @return {Number} Far frustum plane position.
     */
    get far(): number;
    /**
     * Gets the Frustum's projection transform matrix.
     *
     * Fires a {@link Frustum#matrix:emits} emits on change.
     *
     * Default value is ````[1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1]````.
     *
     * @returns {Number[]} The Frustum's projection matrix matrix.
     */
    get matrix(): number[];
    /**
     * Gets the inverse of {@link Frustum#matrix}.
     *
     * @returns {Number[]} The inverse orthographic projection matrix.
     */
    get inverseMatrix(): number[];
    /**
     * Gets the transpose of {@link Frustum#matrix}.
     *
     * @returns {Number[]} The transpose of {@link Frustum#matrix}.
     */
    get transposedMatrix(): number[];
    /**
     * Un-projects the given Canvas-space coordinates, using this Frustum projection.
     *
     * @param {Number[]} canvasPos Inputs 2D Canvas-space coordinates.
     * @param {Number} screenZ Inputs Screen-space Z coordinate.
     * @param {Number[]} screenPos Outputs 3D Screen/Clip-space coordinates.
     * @param {Number[]} viewPos Outputs un-projected 3D View-space coordinates.
     * @param {Number[]} worldPos Outputs un-projected 3D World-space coordinates.
     */
    unproject(canvasPos: number[], screenZ: number, screenPos: number[], viewPos: number[], worldPos: number[]): number[];
}
import { Component } from "../Component.js";
import { RenderState } from "../webgl/RenderState.js";