declare namespace pc {

    /**
     * @component
     * @name pc.LightComponent
     * @class The Light Component enables the Entity to light the scene. There are three types
     * of light: directional, point and spot. Directional lights are global in that they are
     * considered to be infinitely far away and light the entire scene. Point and spot lights
     * are local in that they have a position and a range. A spot light is a specialization of
     * a point light where light is emitted in a cone rather than in all directions. Lights
     * also have the ability to cast shadows to add realism to your scenes.
     * @description Creates a new Light Component.
     * @param {pc.LightComponentSystem} system The ComponentSystem that created this Component.
     * @param {pc.Entity} entity The Entity that this Component is attached to.
     * @example
     * // Add a pc.LightComponent to an entity
     * var entity = new pc.Entity();
     * entity.addComponent('light', {
     *     type: "point",
     *     color: new pc.Color(1, 0, 0),
     *     range: 10
     * });
     * @example
     * // Get the pc.LightComponent on an entity
     * var lightComponent = entity.light;
     * @example
     * // Update a property on a light component
     * entity.light.range = 20;
     * @property {String} type The type of light. Can be:
     * <ul>
     *     <li>"directional": A light that is infinitely far away and lights the entire scene from one direction.</li>
     *     <li>"point": A light that illuminates in all directions from a point.</li>
     *     <li>"spot": A light that illuminates in all directions from a point and is bounded by a cone.</li>
     * </ul>
     * Defaults to "directional".
     * @property {pc.Color} color The Color of the light. The alpha component of the color is
     * ignored. Defaults to white (1, 1, 1).
     * @property {Number} intensity The brightness of the light. Defaults to 1.
     * @property {Boolean} castShadows If enabled the light will cast shadows. Defaults to false.
     * @property {Number} shadowDistance The distance from the viewpoint beyond which shadows
     * are no longer rendered. Affects directional lights only. Defaults to 40.
     * @property {Number} shadowResolution The size of the texture used for the shadow map.
     * Valid sizes are 64, 128, 256, 512, 1024, 2048. Defaults to 1024.
     * @property {Number} shadowBias The depth bias for tuning the appearance of the shadow
     * mapping generated by this light. Defaults to 0.05.
     * @property {Number} normalOffsetBias Normal offset depth bias. Defaults to 0.
     * @property {Number} range The range of the light. Affects point and spot lights only.
     * Defaults to 10.
     * @property {Number} innerConeAngle The angle at which the spotlight cone starts
     * to fade off. The angle is specified in degrees. Affects spot lights only. Defaults
     * to 40.
     * @property {Number} outerConeAngle The angle at which the spotlight cone has faded
     * to nothing. The angle is specified in degrees. Affects spot lights only. Defaults
     * to 45.
     * @property {Number} falloffMode Controls the rate at which a light attentuates from
     * its position. Can be:
     * <ul>
     * <li>{@link pc.LIGHTFALLOFF_LINEAR}: Linear.</li>
     * <li>{@link pc.LIGHTFALLOFF_INVERSESQUARED}: Inverse squared.</li>
     * </ul>
     * Affects point and spot lights only. Defaults to pc.LIGHTFALLOFF_LINEAR.
     * @property {Number} mask Defines a mask to determine which {@link pc.MeshInstance}s are
     * lit by this light. Defaults to 1.
     * @property {Boolean} affectDynamic If enabled the light will affect non-lightmapped objects
     * @property {Boolean} affectLightmapped If enabled the light will affect lightmapped objects
     * @property {Boolean} bake If enabled the light will be rendered into lightmaps
     * @property {Boolean} bakeDir If enabled and bake=true, the light's direction will contribute to directional lightmaps.
     * Be aware, that directional lightmap is an approximation and can only hold single direction per pixel.
     * Intersecting multiple lights with bakeDir=true may lead to incorrect look of specular/bump-mapping in the area of intersection.
     * The error is not always visible though, and highly scene-dependent.
     * @property {Number} shadowUpdateMode Tells the renderer how often shadows must be updated for this light. Options:
     * <ul>
     * <li>{@link pc.SHADOWUPDATE_NONE}: Don't render shadows.</li>
     * <li>{@link pc.SHADOWUPDATE_THISFRAME}: Render shadows only once (then automatically switches to pc.SHADOWUPDATE_NONE).</li>
     * <li>{@link pc.SHADOWUPDATE_REALTIME}: Render shadows every frame (default).</li>
     * </ul>
     * @property {Number} shadowType Type of shadows being rendered by this light. Options:
     * <ul>
     * <li>{@link pc.SHADOW_PCF3}: Render depth (color-packed on WebGL 1.0), can be used for PCF 3x3 sampling.</li>
     * <li>{@link pc.SHADOW_VSM8}: Render packed variance shadow map. All shadow receivers must also cast shadows for this mode to work correctly.</li>
     * <li>{@link pc.SHADOW_VSM16}: Render 16-bit exponential variance shadow map. Requires OES_texture_half_float extension. Falls back to pc.SHADOW_VSM8, if not supported.</li>
     * <li>{@link pc.SHADOW_VSM32}: Render 32-bit exponential variance shadow map. Requires OES_texture_float extension. Falls back to pc.SHADOW_VSM16, if not supported.</li>
     * <li>{@link pc.SHADOW_PCF5}: Render depth buffer only, can be used for hardware-accelerated PCF 5x5 sampling. Requires WebGL2. Falls back to pc.SHADOW_PCF3 on WebGL 1.0.</li>
     * </ul>
     * @property {Number} vsmBlurMode Blurring mode for variance shadow maps:
     * <ul>
     * <li>{@link pc.BLUR_BOX}: Box filter.</li>
     * <li>{@link pc.BLUR_GAUSSIAN}: Gaussian filter. May look smoother than box, but requires more samples.</li>
     * </ul>
     * @property {Number} vsmBlurSize Number of samples used for blurring a variance shadow map. Only uneven numbers work, even are incremented. Minimum value is 1, maximum is 25.
     * @property {Number} cookieAsset Asset that has texture that will be assigned to cookie internally once asset resource is available.
     * @property {pc.Texture} cookie Projection texture. Must be 2D for spot and cubemap for point (ignored if incorrect type is used).
     * @property {Number} cookieIntensity Projection texture intensity (default is 1).
     * @property {Boolean} cookieFalloff Toggle normal spotlight falloff when projection texture is used. When set to false, spotlight will work like a pure texture projector (only fading with distance). Default is false.
     * @property {String} cookieChannel Color channels of the projection texture to use. Can be "r", "g", "b", "a", "rgb" or any swizzled combination.
     * @property {Number} cookieAngle Angle for spotlight cookie rotation.
     * @property {pc.Vec2} cookieScale Spotlight cookie scale.
     * @property {pc.Vec2} cookieOffset Spotlight cookie position offset.
     * @property {Boolean} isStatic Mark light as non-movable (optimization)
     * @extends pc.Component
     */
    class LightComponent extends pc.Component {
        constructor(system: pc.LightComponentSystem, entity: pc.Entity)

        type: string;
        color: pc.Color;
        intensity: number;
        castShadows: boolean;
        shadowDistance: number;
        shadowResolution: number;
        shadowBias: number;
        normalOffsetBias: number;
        range: number;
        innerConeAngle: number;
        outerConeAngle: number;
        falloffMode: number;
        mask: number;
        affectDynamic: boolean;
        affectLightmapped: boolean;
        bake: boolean;
        bakeDir: boolean;
        shadowUpdateMode: number;
        shadowType: number;
        vsmBlurMode: number;
        vsmBlurSize: number;
        cookieAsset: number;
        cookie: pc.Texture;
        cookieIntensity: number;
        cookieFalloff: boolean;
        cookieChannel: string;
        cookieAngle: number;
        cookieScale: pc.Vec2;
        cookieOffset: pc.Vec2;
        isStatic: boolean;

    }
}