Add a way to set optional values later

Author: vanruesc

src/effects/GodRaysEffect.js

@@ -31,8 +31,8 @@ export class GodRaysEffect extends Effect {
 	/**
 	 * Constructs a new god rays effect.
 	 *
-	 * @param {Camera} camera - The main camera.
-	 * @param {Mesh|Points} lightSource - The light source. Must not write depth and has to be flagged as transparent.
+	 * @param {Camera} [camera] - The main camera.
+	 * @param {Mesh|Points} [lightSource] - The light source. Must not write depth and has to be flagged as transparent.
 	 * @param {Object} [options] - The options.
 	 * @param {BlendFunction} [options.blendFunction=BlendFunction.SCREEN] - The blend function of this effect.
 	 * @param {Number} [options.samples=60.0] - The number of samples per pixel.
@@ -91,9 +91,8 @@ export class GodRaysEffect extends Effect {
 		 * @private
 		 */
 
+		this._lightSource = lightSource;
 		this.lightSource = lightSource;
-		this.lightSource.material.depthWrite = false;
-		this.lightSource.material.transparent = true;
 
 		/**
 		 * A scene for the light source.
@@ -225,6 +224,31 @@ export class GodRaysEffect extends Effect {
 
 	}
 
+	/**
+	 * Sets the light source.
+	 *
+	 * @type {Mesh|Points}
+	 */
+
+	get lightSource() {
+
+		return this._lightSource;
+
+	}
+
+	set lightSource(value) {
+
+		this._lightSource = value;
+
+		if(value !== null) {
+
+			value.material.depthWrite = false;
+			value.material.transparent = true;
+
+		}
+
+	}
+
 	/**
 	 * Returns the blur pass that reduces aliasing artifacts and makes the light softer.
 	 *

src/effects/SSAOEffect.js

@@ -28,8 +28,8 @@ export class SSAOEffect extends Effect {
 	 * Constructs a new SSAO effect.
 	 *
 	 * @todo Move normalBuffer to options.
-	 * @param {Camera} camera - The main camera.
-	 * @param {Texture} normalBuffer - A texture that contains the scene normals.
+	 * @param {Camera} [camera] - The main camera.
+	 * @param {Texture} [normalBuffer] - A texture that contains the scene normals.
 	 * @param {Object} [options] - The options.
 	 * @param {BlendFunction} [options.blendFunction=BlendFunction.MULTIPLY] - The blend function of this effect.
 	 * @param {Boolean} [options.distanceScaling=true] - Deprecated.
@@ -212,6 +212,25 @@ export class SSAOEffect extends Effect {
 
 	}
 
+	/**
+	 * Sets the normal buffer.
+	 *
+	 * @type {Texture}
+	 */
+
+	get normalBuffer() {
+
+		return this.ssaoMaterial.normalBuffer;
+
+	}
+
+	set normalBuffer(value) {
+
+		this.ssaoMaterial.normalBuffer = value;
+		this.depthDownsamplingPass.fullscreenMaterial.normalBuffer = value;
+
+	}
+
 	/**
 	 * Returns the resolution settings.
 	 *