Method initialize

src/effects/SSAOEffect.js:599–622

* Performs initialization tasks. * * @param {WebGLRenderer} renderer - The renderer. * @param {Boolean} alpha - Whether the renderer uses the alpha channel or not. * @param {Number} frameBufferType - The type of the main frame buffers.

(renderer, alpha, frameBufferType)

	 */

	initialize(renderer, alpha, frameBufferType) {

		try {

			let normalDepthBuffer = this.uniforms.get("normalDepthBuffer").value;

			if(normalDepthBuffer === null) {

				this.depthDownsamplingPass.initialize(renderer, alpha, frameBufferType);
				normalDepthBuffer = this.depthDownsamplingPass.texture;
				this.uniforms.get("normalDepthBuffer").value = normalDepthBuffer;
				this.ssaoMaterial.normalDepthBuffer = normalDepthBuffer;
				this.defines.set("NORMAL_DEPTH", "1");

			}

		} catch(e) {

			// Not supported.
			this.depthDownsamplingPass.enabled = false;

		}

	}

}