Add lights to duck example for good measure.

examples/js/loaders/GLTF2Loader.js

@@ -310,8 +310,7 @@ THREE.GLTF2Loader = ( function () {
 			var light = lights[ lightId ];
 			var lightNode;
 
-			var lightParams = light[ light.type ];
-			var color = new THREE.Color().fromArray( lightParams.color );
+			var color = new THREE.Color().fromArray( light.color );
 
 			switch ( light.type ) {
 
@@ -337,6 +336,7 @@ THREE.GLTF2Loader = ( function () {
 
 			if ( lightNode ) {
 
+				lightNode.name = light.name || ( 'light_' + lightId );
 				this.lights[ lightId ] = lightNode;
 
 			}

examples/models/gltf/Duck/glTF-MaterialsCommon/Duck.gltf

@@ -141,11 +141,47 @@
             "type" : "perspective"
         }
     ], 
+    "extensions" : {
+        "KHR_lights" : {
+            "lights" : [
+                {
+                    "color" : [
+                        1.0, 
+                        1.0, 
+                        1.0
+                    ], 
+                    "name" : "directionalLightShape1", 
+                    "type" : "directional"
+                }, 
+                {
+                    "color" : [
+                        1.0, 
+                        1.0, 
+                        1.0
+                    ], 
+                    "name" : "Lamp", 
+                    "quadraticAttenuation" : 0.03333335240683057, 
+                    "type" : "point"
+                }, 
+                {
+                    "color" : [
+                        0.0, 
+                        0.0, 
+                        0.0
+                    ], 
+                    "name" : "Ambient_Scene", 
+                    "type" : "ambient"
+                }
+            ]
+        }
+    }, 
     "extensionsRequired" : [
-        "KHR_materials_common"
+        "KHR_materials_common", 
+        "KHR_lights"
     ], 
     "extensionsUsed" : [
-        "KHR_materials_common"
+        "KHR_materials_common", 
+        "KHR_lights"
     ], 
     "images" : [
         {
@@ -266,6 +302,23 @@
             ]
         }, 
         {
+            "extensions" : {
+                "KHR_lights" : {
+                    "light" : 0
+                }
+            }, 
+            "name" : "Correction_directionalLight1", 
+            "rotation" : [
+                -0.7071067690849304, 
+                -0.0, 
+                0.0, 
+                0.7071067690849304
+            ]
+        }, 
+        {
+            "children" : [
+                4
+            ], 
             "name" : "directionalLight1", 
             "rotation" : [
                 0.14142043888568878, 
@@ -285,6 +338,23 @@
             ]
         }, 
         {
+            "extensions" : {
+                "KHR_lights" : {
+                    "light" : 1
+                }
+            }, 
+            "name" : "Correction_Lamp", 
+            "rotation" : [
+                -0.7071067690849304, 
+                -0.0, 
+                0.0, 
+                0.7071067690849304
+            ]
+        }, 
+        {
+            "children" : [
+                6
+            ], 
             "name" : "Lamp", 
             "rotation" : [
                 0.16907575726509094, 
@@ -325,12 +395,17 @@
     "scene" : 0, 
     "scenes" : [
         {
+            "extensions" : {
+                "KHR_lights" : {
+                    "light" : 2
+                }
+            }, 
             "name" : "Scene", 
             "nodes" : [
-                4, 
-                3, 
-                6, 
                 5, 
+                3, 
+                8, 
+                7, 
                 1
             ]
         }

examples/webgl_loader_gltf2.html

@@ -437,8 +437,8 @@
 					addLights:true,
 					addGround:true,
 					shadows:true,
-					// TODO: 'glTF-MaterialsCommon', 'glTF-techniqueWebGL'
-					extensions: ['glTF', 'glTF-Embedded', 'glTF-pbrSpecularGlossiness', 'glTF-Binary']
+					// TODO: 'glTF-techniqueWebGL'
+					extensions: ['glTF', 'glTF-Embedded', 'glTF-MaterialsCommon', 'glTF-pbrSpecularGlossiness', 'glTF-Binary']
 				},
 				{
 					name : "Monster", url : "./models/gltf/Monster/%s/Monster.gltf",