Class BloomEffect

src/effects/BloomEffect.js:19–467

 */

export class BloomEffect extends Effect {

	/**
	 * Constructs a new bloom effect.
	 *
	 * @param {Object} [options] - The options.
	 * @param {BlendFunction} [options.blendFunction=BlendFunction.SCREEN] - The blend function of this effect.
	 * @param {Number} [options.luminanceThreshold=1.0] - The luminance threshold. Raise this value to mask out darker elements in the scene.
	 * @param {Number} [options.luminanceSmoothing=0.03] - Controls the smoothness of the luminance threshold.
	 * @param {Boolean} [options.mipmapBlur=true] - Enables or disables mipmap blur.
	 * @param {Number} [options.intensity=1.0] - The bloom intensity.
	 * @param {Number} [options.radius=0.85] - The blur radius. Only applies to mipmap blur.
	 * @param {Number} [options.levels=8] - The amount of MIP levels. Only applies to mipmap blur.
	 * @param {KernelSize} [options.kernelSize=KernelSize.LARGE] - Deprecated. Use mipmapBlur instead.
	 * @param {Number} [options.resolutionScale=0.5] - Deprecated. Use mipmapBlur instead.
	 * @param {Number} [options.resolutionX=Resolution.AUTO_SIZE] - Deprecated. Use mipmapBlur instead.
	 * @param {Number} [options.resolutionY=Resolution.AUTO_SIZE] - Deprecated. Use mipmapBlur instead.
	 * @param {Number} [options.width=Resolution.AUTO_SIZE] - Deprecated. Use mipmapBlur instead.
	 * @param {Number} [options.height=Resolution.AUTO_SIZE] - Deprecated. Use mipmapBlur instead.
	 */

	constructor({
		blendFunction = BlendFunction.SCREEN,
		luminanceThreshold = 1.0,
		luminanceSmoothing = 0.03,
		mipmapBlur = true,
		intensity = 1.0,
		radius = 0.85,
		levels = 8,
		kernelSize = KernelSize.LARGE,
		resolutionScale = 0.5,
		width = Resolution.AUTO_SIZE,
		height = Resolution.AUTO_SIZE,
		resolutionX = width,
		resolutionY = height
	} = {}) {

		super("BloomEffect", fragmentShader, {
			blendFunction,
			uniforms: new Map([
				["map", new Uniform(null)],
				["intensity", new Uniform(intensity)]
			])
		});

		/**
		 * A render target.
		 *
		 * @type {WebGLRenderTarget}
		 * @private
		 */

		this.renderTarget = new WebGLRenderTarget(1, 1, { depthBuffer: false });
		this.renderTarget.texture.name = "Bloom.Target";

		/**
		 * A blur pass.
		 *