start controller support

Tools/Gulp/config.json

@@ -1302,7 +1302,8 @@
                 "../../src/Cameras/XR/babylon.webXRSessionManager.js",
                 "../../src/Cameras/XR/babylon.webXRExperienceHelper.js",
                 "../../src/Cameras/XR/babylon.webXREnterExitUI.js",
-                "../../src/Cameras/XR/babylon.webXRManagedOutputCanvas.js"
+                "../../src/Cameras/XR/babylon.webXRManagedOutputCanvas.js",
+                "../../src/Cameras/XR/babylon.webXRInput.js"
             ],
             "dependUpon": [
                 "core",

src/Cameras/XR/babylon.webXRExperienceHelper.ts

@@ -49,7 +49,8 @@ module BABYLON {
          */
         public onStateChangedObservable = new Observable<WebXRState>();
 
-        private _sessionManager: WebXRSessionManager;
+        /** @hidden */
+        public _sessionManager: WebXRSessionManager;
 
         private _nonVRCamera: Nullable<Camera> = null;
         private _originalSceneAutoClear = true;

src/Helpers/babylon.sceneHelpers.ts

@@ -180,7 +180,9 @@ module BABYLON {
     Scene.prototype.createDefaultXRExperienceAsync = function(): Promise<BABYLON.WebXRExperienceHelper> {
         return BABYLON.WebXRExperienceHelper.CreateAsync(this).then((helper) => {
             var outputCanvas = new BABYLON.WebXRManagedOutputCanvas(helper);
-            return BABYLON.WebXREnterExitUI.CreateAsync(this, helper, {outputCanvasContext: outputCanvas.canvasContext}).then((ui) => {
+            return BABYLON.WebXREnterExitUI.CreateAsync(this, helper, {outputCanvasContext: outputCanvas.canvasContext})
+            .then((ui) => {
+                new BABYLON.WebXRInput(helper);
                 return helper;
             });
         });

src/babylon.mixins.ts

@@ -184,6 +184,7 @@ interface XRDevice {
     supportsSession(options: XRSessionCreationOptions): Promise<void>;
 }
 interface XRSession {
+    getInputSources():Array<any>;
     baseLayer: XRWebGLLayer;
     requestFrameOfReference(type: string): Promise<void>;
     requestHitTest(origin: Float32Array, direction: Float32Array, frameOfReference: any): any;
@@ -206,6 +207,7 @@ interface XRView {
 }
 interface XRFrame {
     getDevicePose: Function;
+    getInputPose: Function;
     views: Array<XRView>;
     baseLayer: XRLayer;
 }