diff --git a/threejs/tests/examples/effects/vreffect.ts b/threejs/tests/examples/effects/vreffect.ts
new file mode 100644
index 0000000000..2e0fbca8e5
--- /dev/null
+++ b/threejs/tests/examples/effects/vreffect.ts
@@ -0,0 +1,16 @@
+/// <reference path="../../../three.d.ts" />
+/// <reference path="../../../three-vreffect.d.ts" />
+
+var _vrEffect: THREE.VREffect;
+
+_vrEffect = new THREE.VREffect(new THREE.WebGLRenderer({antialias: true}), (error) => {
+    if (error) {
+        this._stats.classList.add("error");
+        this._stats.innerHTML = "WebVR API not supported";
+        this._vrAvailable = false;
+    }
+});
+
+_vrEffect.setSize(100, 100);
+_vrEffect.render(new THREE.Scene(), new THREE.Camera());
+_vrEffect.setFullScreen(true);
diff --git a/threejs/three-tests.ts b/threejs/three-tests.ts
index 0693d40bd1..ec3018c3e7 100644
--- a/threejs/three-tests.ts
+++ b/threejs/three-tests.ts
@@ -57,5 +57,6 @@ THE SOFTWARE.
 /// <reference path="./tests/canvas/canvas_materials.ts" />
 /// <reference path="./tests/canvas/canvas_particles_floor.ts" />
 
-// examples test.
+// examples test
 /// <reference path="./tests/examples/detector.ts" />
+/// <reference path="./tests/examples/effects/vreffect.ts" />
diff --git a/threejs/three-vreffect.d.ts b/threejs/three-vreffect.d.ts
new file mode 100644
index 0000000000..2fab612808
--- /dev/null
+++ b/threejs/three-vreffect.d.ts
@@ -0,0 +1,31 @@
+// Type definitions for three.js (VREffect.js)
+// Project: https://github.com/mrdoob/three.js/blob/master/examples/js/effects/VREffect.js
+// Definitions by: Toshiya Nakakura <https://github.com/nakakura>
+// Definitions: https://github.com/borisyankov/DefinitelyTyped
+
+/// <reference path="./three.d.ts" />
+
+declare module THREE {
+    export class VREffect {
+        constructor(renderer: Renderer, callback?: (params: string)=>void);
+        render(scene: Scene, camera: Camera): void;
+        setSize(width: number, height: number): void;
+        setFullScreen(flag: boolean): void;
+        startFullscreen(): void;
+        FovToNDCScaleOffset(fov: VRFov): VREffectOffset;
+        FovPortToProjection(fov: VRFov, rightHanded: boolean, zNear: number, zFar: number): Matrix4;
+        FovToProjection(fov: VRFov, rightHanded: boolean, zNear: number, zFar: number): Matrix4;
+    }
+
+    export interface VRFov{
+        leftTan: number;
+        rightTan: number;
+        upTan: number;
+        downTan: number;
+    }
+
+    export interface VREffectOffset{
+        scale: number;
+        offset: number;
+    }
+}