Simplified *Light.toJSON()

src/lights/AmbientLight.js

@@ -12,13 +12,3 @@ THREE.AmbientLight = function ( color ) {
 
 THREE.AmbientLight.prototype = Object.create( THREE.Light.prototype );
 THREE.AmbientLight.prototype.constructor = THREE.AmbientLight;
-
-THREE.AmbientLight.prototype.toJSON = function ( meta ) {
-
-	var data = THREE.Object3D.prototype.toJSON.call( this, meta );
-
-	data.object.color = this.color.getHex();
-
-	return data;
-
-};

src/lights/DirectionalLight.js

@@ -74,14 +74,3 @@ THREE.DirectionalLight.prototype.copy = function ( source ) {
 	return this;
 
 };
-
-THREE.DirectionalLight.prototype.toJSON = function ( meta ) {
-
-	var data = THREE.Object3D.prototype.toJSON.call( this, meta );
-
-	data.object.color = this.color.getHex();
-	data.object.intensity = this.intensity;
-
-	return data;
-
-};

src/lights/HemisphereLight.js

@@ -29,15 +29,3 @@ THREE.HemisphereLight.prototype.copy = function ( source ) {
 	return this;
 
 };
-
-THREE.HemisphereLight.prototype.toJSON = function ( meta ) {
-
-	var data = THREE.Object3D.prototype.toJSON.call( this, meta );
-
-	data.object.color = this.color.getHex();
-	data.object.groundColor = this.groundColor.getHex();
-	data.object.intensity = this.intensity;
-
-	return data;
-
-};

src/lights/Light.js

@@ -17,11 +17,28 @@ THREE.Light.prototype = Object.create( THREE.Object3D.prototype );
 THREE.Light.prototype.constructor = THREE.Light;
 
 THREE.Light.prototype.copy = function ( source ) {
-	
+
 	THREE.Object3D.prototype.copy.call( this, source );
-	
+
 	this.color.copy( source.color );
-	
+
 	return this;
 
-};
+};
+
+THREE.Light.prototype.toJSON = function ( meta ) {
+
+	var data = THREE.Object3D.prototype.toJSON.call( this, meta );
+
+	data.object.color = this.color.getHex();
+	if ( this.groundColor !== undefined ) data.object.groundColor = this.groundColor.getHex();
+
+	if ( this.intensity !== undefined ) data.object.intensity = this.intensity;
+	if ( this.distance !== undefined ) data.object.distance = this.distance;
+	if ( this.angle !== undefined ) data.object.angle = this.angle;
+	if ( this.decay !== undefined ) data.object.decay = this.decay;
+	if ( this.exponent !== undefined ) data.object.exponent = this.exponent;
+
+	return data;
+
+};

src/lights/PointLight.js

@@ -68,16 +68,3 @@ THREE.PointLight.prototype.copy = function ( source ) {
 	return this;
 
 };
-
-THREE.PointLight.prototype.toJSON = function ( meta ) {
-
-	var data = THREE.Object3D.prototype.toJSON.call( this, meta );
-
-	data.object.color = this.color.getHex();
-	data.object.intensity = this.intensity;
-	data.object.distance = this.distance;
-	data.object.decay = this.decay;
-
-	return data;
-
-};

src/lights/SpotLight.js

@@ -72,19 +72,5 @@ THREE.SpotLight.prototype.copy = function ( source ) {
 	this.shadowMapHeight = source.shadowMapHeight;
 
 	return this;
-}
-
-THREE.SpotLight.prototype.toJSON = function ( meta ) {
-
-	var data = THREE.Object3D.prototype.toJSON.call( this, meta );
-
-	data.object.color = this.color.getHex();
-	data.object.intensity = this.intensity;
-	data.object.distance = this.distance;
-	data.object.angle = this.angle;
-	data.object.exponent = this.exponent;
-	data.object.decay = this.decay;
-
-	return data;
 
 };