ObjectLoader: Refector (de)serialization of Fog and FogExp2 (#26793)

* marshal fog/fogexp2 .name

* use object literal

src/loaders/ObjectLoader.js

@@ -785,6 +785,12 @@ class ObjectLoader extends Loader {
 
 					}
 
+					if ( data.fog.name !== '' ) {
+
+						object.fog.name = data.fog.name;
+
+					}
+
 				}
 
 				if ( data.backgroundBlurriness !== undefined ) object.backgroundBlurriness = data.backgroundBlurriness;

src/scenes/Fog.js

@@ -25,6 +25,7 @@ class Fog {
 
 		return {
 			type: 'Fog',
+			name: this.name,
 			color: this.color.getHex(),
 			near: this.near,
 			far: this.far

src/scenes/FogExp2.js

@@ -23,6 +23,7 @@ class FogExp2 {
 
 		return {
 			type: 'FogExp2',
+			name: this.name,
 			color: this.color.getHex(),
 			density: this.density
 		};