Merge pull request #438 from frading/add_copy_method_to_PhysicalCamera

add PhysicalCamera.copy

src/objects/PhysicalCamera.js

@@ -25,4 +25,18 @@ export class PhysicalCamera extends PerspectiveCamera {
 
 	}
 
+	copy( source, recursive ) {
+
+		super.copy( source, recursive );
+
+		this.fStop = source.fStop;
+		this.apertureBlades = source.apertureBlades;
+		this.apertureRotation = source.apertureRotation;
+		this.focusDistance = source.focusDistance;
+		this.anamorphicRatio = source.anamorphicRatio;
+
+		return this;
+
+	}
+
 }

src/objects/PhysicalSpotLight.js

@@ -11,4 +11,15 @@ export class PhysicalSpotLight extends SpotLight {
 
 	}
 
+	copy( source, recursive ) {
+
+		super.copy( source, recursive );
+
+		this.iesTexture = source.iesTexture;
+		this.radius = source.radius;
+
+		return this;
+
+	}
+
 }

src/objects/ShapedAreaLight.js

@@ -9,4 +9,14 @@ export class ShapedAreaLight extends RectAreaLight {
 
 	}
 
+	copy( source, recursive ) {
+
+		super.copy( source, recursive );
+
+		this.isCircular = source.isCircular;
+
+		return this;
+
+	}
+
 }