diff --git a/app/src/main/java/com/google/ar/core/examples/java/common/framework/RWT/RWTRenderer.java b/app/src/main/java/com/google/ar/core/examples/java/common/framework/RWT/RWTRenderer.java
index 24a4558..8619fec 100644
--- a/app/src/main/java/com/google/ar/core/examples/java/common/framework/RWT/RWTRenderer.java
+++ b/app/src/main/java/com/google/ar/core/examples/java/common/framework/RWT/RWTRenderer.java
@@ -1,14 +1,19 @@
 package com.google.ar.core.examples.java.common.framework.RWT;
 
+import android.opengl.GLES20;
 import android.opengl.GLSurfaceView.Renderer;
 
+import com.google.ar.core.Camera;
+import com.google.ar.core.Frame;
 import com.google.ar.core.Session;
 import com.google.ar.core.examples.java.common.framework.model3D.Universe;
 import com.google.ar.core.examples.java.common.framework.view3D.Camera3D;
 import com.google.ar.core.examples.java.common.framework.view3D.Viewer3D;
 import com.google.ar.core.examples.java.common.java3d.GraphicsContext3D;
 import com.google.ar.core.examples.java.common.java3d.Light;
+import com.google.ar.core.examples.java.common.rendering.BackgroundRenderer;
 import com.google.ar.core.examples.java.helloar.HelloArActivity;
+import com.google.ar.core.exceptions.CameraNotAvailableException;
 
 import java.util.ArrayList;
 
@@ -18,16 +23,25 @@
 public class RWTRenderer implements Renderer {
 	protected Viewer3D viewer;
 	protected Session session;
+	protected BackgroundRenderer backgroundRenderer;
 	protected HelloArActivity helloArActivity;
 	protected Universe universe;
 	protected GraphicsContext3D gc3D = null;
 
-	public RWTRenderer(Session session, HelloArActivity helloArActivity) {
+	public RWTRenderer(HelloArActivity helloArActivity, BackgroundRenderer backgroundRenderer) {
 		super();
-		this.session = session;
 		this.helloArActivity = helloArActivity;
+		this.backgroundRenderer = backgroundRenderer;
 	}
-	
+
+	public void setSession(Session session) {
+	    this.session = session;
+    }
+
+//    public void setBackgroundRenderer(BackgroundRenderer backgroundRenderer) {
+//		this.backgroundRenderer = backgroundRenderer;
+//	}
+
 //	public void attachCamera(Camera3D camera) {
 //		// onSurfaceCreated()より先に呼ばれる
 //		this.camera = camera;
@@ -62,19 +76,38 @@
 
 	@Override
 	public void onDrawFrame(GL10 gl) {
-//		if (gc3D == null) {
-//			gc3D = new GraphicsContext3D(gl);
-//			viewer.setGraphicsContext3D(gc3D);
-//		} else {
-//			viewer.setGraphicsContext3D(gc3D.setGL10(gl));
-//		}
-//		viewer.onDrawFrame();
-//
-//		// 3Dモデルのレンダリング
-//		gc3D.pushMatrix();
-//		universe.render(viewer);
-//		gc3D.popMatrix();
+		GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT | GLES20.GL_DEPTH_BUFFER_BIT);
 
-		helloArActivity.onDrawFrame(gl);
+	    if(session == null) {
+	        return;
+        }
+        try {
+			session.setCameraTextureName(backgroundRenderer.getTextureId());
+
+            Frame frame = session.update();
+            Camera camera = frame.getCamera();
+
+			backgroundRenderer.draw(frame);
+
+            if (viewer == null) {
+                viewer = new Viewer3D(camera);
+            }
+
+            if (gc3D == null) {
+                gc3D = new GraphicsContext3D(gl);
+                viewer.setGraphicsContext3D(gc3D);
+            } else {
+                viewer.setGraphicsContext3D(gc3D.setGL10(gl));
+            }
+            viewer.onDrawFrame();
+//
+//            // 3Dモデルのレンダリング
+//            gc3D.pushMatrix();
+//            universe.render(viewer);
+//            gc3D.popMatrix();
+			helloArActivity.onDrawFrame(gl, frame, camera);
+        } catch (CameraNotAvailableException e) {
+            e.printStackTrace();
+        }
 	}
 }