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 dbe10e2..965bd65 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
@@ -1,5 +1,6 @@
 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;
@@ -63,7 +64,7 @@
 
 	@Override
 	public void onSurfaceChanged(GL10 gl, int width, int height) {
-		gl.glViewport(0, 0, width, height);
+		GLES20.glViewport(0, 0, width, height);
 
 		if (viewer == null) {
 			gc3D = new GraphicsContext3D(gl);
diff --git a/app/src/main/java/com/google/ar/core/examples/java/common/framework/view3D/Viewer3D.java b/app/src/main/java/com/google/ar/core/examples/java/common/framework/view3D/Viewer3D.java
index d25694f..73b1f40 100644
--- a/app/src/main/java/com/google/ar/core/examples/java/common/framework/view3D/Viewer3D.java
+++ b/app/src/main/java/com/google/ar/core/examples/java/common/framework/view3D/Viewer3D.java
@@ -34,11 +34,13 @@
 		this.width =width;
 		this.height = height;
 		if (camera != null) {
-			float focalLength = camera.getImageIntrinsics().getFocalLength()[0];
+			float xfocalLength = camera.getImageIntrinsics().getFocalLength()[0];
+			float yfocalLength = camera.getImageIntrinsics().getFocalLength()[1];
 //			gc3D.update(width, height, (float)camera.getFieldOfView(), (float)camera.getFrontClipDistance(), (float)camera.getBackClipDistance(), false);
 			float w = (float)camera.getImageIntrinsics().getImageDimensions()[1];
-//			height = camera.getImageIntrinsics().getImageDimensions()[0];
-			gc3D.update(this.width, this.height, (float) Math.atan(w / 2.0f / focalLength) * 2.0f, 0.1f, 100.0f, false);
+			float h = (float)camera.getImageIntrinsics().getImageDimensions()[0];
+//			gc3D.update(this.width, this.height, (float) Math.atan(w / 2.0f / xfocalLength) * 2.0f, 0.1f, 100.0f, false);
+			gc3D.update(this.width, this.height, h, yfocalLength, 0.1f, 100.0f, false);
 		}
 	}
 
@@ -56,12 +58,14 @@
 			float viewPoint[] = camera.getDisplayOrientedPose().getTranslation();
 			float viewLine[] = camera.getDisplayOrientedPose().getZAxis();
 			float viewUp[] = camera.getDisplayOrientedPose().getYAxis();
-			float focalLength = camera.getImageIntrinsics().getFocalLength()[0];
+			float xfocalLength = camera.getImageIntrinsics().getFocalLength()[0];
+			float yfocalLength = camera.getImageIntrinsics().getFocalLength()[1];
 			Position3D eye = new Position3D(viewPoint[0], viewPoint[1], viewPoint[2]);
 			Position3D center = eye.clone().add(new Vector3d(-viewLine[0], -viewLine[1], -viewLine[2]));
 			Vector3d up = new Vector3d(viewUp[0], viewUp[1] * camera.getPose().qy(), viewUp[2]);
 			float w = (float)camera.getImageIntrinsics().getImageDimensions()[1];
-			gc3D.update(width, height, (float) Math.atan(w / 2.0f / focalLength) * 2.0f, 0.1f, 100.0f, eye, center, up, false);
+			float h = (float)camera.getImageIntrinsics().getImageDimensions()[0];
+			gc3D.update(this.width, this.height, h, yfocalLength, 0.1f, 100.0f, eye, center, up, false);
 		}
 	}
 
diff --git a/app/src/main/java/com/google/ar/core/examples/java/common/java3d/GraphicsContext3D.java b/app/src/main/java/com/google/ar/core/examples/java/common/java3d/GraphicsContext3D.java
index 371b943..48ddffd 100644
--- a/app/src/main/java/com/google/ar/core/examples/java/common/java3d/GraphicsContext3D.java
+++ b/app/src/main/java/com/google/ar/core/examples/java/common/java3d/GraphicsContext3D.java
@@ -53,7 +53,8 @@
 		gl.glClearDepthf(1.0f);
 	}
 
-	public void update(int width, int height, float fovx, float zNear, float zFar,boolean fParallel) {
+//	public void update(int width, int height, float fovx, float zNear, float zFar,boolean fParallel) {
+	public void update(int width, int height, float h, float yfocalLength, float zNear, float zFar,boolean fParallel) {
 		setGL10(gl);
 		if (!bFixAspect) {
 			aspect = (float)width / (float)height;
@@ -66,7 +67,8 @@
 		gl.glMatrixMode(GL10.GL_PROJECTION);	// 射影変換
 		gl.glLoadIdentity();					// 座標の初期化
 		// 画角の設定
-		float fovy = (float)(Math.atan(Math.tan(fovx / 2.0) / aspect) / Math.PI * 360.0f);
+//		float fovy = (float)(Math.atan(Math.tan(fovx / 2.0) / aspect) / Math.PI * 360.0f);
+		float fovy = (float) (Math.atan(h / 2.0f / yfocalLength) / Math.PI * 360.0f);
 		if(!fParallel){
 			GLU.gluPerspective(gl,
 					fovy,  //Y方向の画角
@@ -98,14 +100,16 @@
 		gl.glLoadIdentity();    // 座標の初期化
 	}
 
-	public void update(int width, int height, float fovx, float zNear, float zFar, Position3D eye, Position3D center, Vector3d up, boolean fParallel) {
+//	public void update(int width, int height, float fovx, float zNear, float zFar, Position3D eye, Position3D center, Vector3d up, boolean fParallel) {
+	public void update(int width, int height, float h, float yfocalLength, float zNear, float zFar, Position3D eye, Position3D center, Vector3d up, boolean fParallel) {
 		aspect = (float)width / (float)height;
 
 		// カメラの設定
 		gl.glMatrixMode(GL10.GL_PROJECTION);	// 射影変換
 		gl.glLoadIdentity();					// 座標の初期化
 		// 画角の設定
-		float fovy = (float)(Math.atan(Math.tan(fovx / 2.0) / aspect) / Math.PI * 360.0f);
+//		float fovy = (float)(Math.atan(Math.tan(fovx / 2.0) / aspect) / Math.PI * 360.0f);
+		float fovy = (float) (Math.atan(h / 2.0f / yfocalLength) / Math.PI * 360.0f);
 		if (!fParallel) {
 			GLU.gluPerspective(gl,
 					fovy,  //Y方向の画角
diff --git a/app/src/main/java/com/google/ar/core/examples/java/helloar/HelloArActivity.java b/app/src/main/java/com/google/ar/core/examples/java/helloar/HelloArActivity.java
index 9c57b18..80e10bd 100644
--- a/app/src/main/java/com/google/ar/core/examples/java/helloar/HelloArActivity.java
+++ b/app/src/main/java/com/google/ar/core/examples/java/helloar/HelloArActivity.java
@@ -266,8 +266,6 @@
 //      virtualObjectShadow.setBlendMode(BlendMode.Shadow);
 //      virtualObjectShadow.setMaterialProperties(1.0f, 0.0f, 0.0f, 1.0f);
 //
-////      renderer.onSurfaceCreated(gl, config);
-//
     } catch (IOException e) {
       Log.e(TAG, "Failed to read an asset file", e);
     }
@@ -409,7 +407,7 @@
           // space. This anchor is created on the Plane to place the 3D model
           // in the correct position relative both to the world and to the plane.
           ColoredAnchor anchor = new ColoredAnchor(hit.createAnchor(), objColor);
-          anchors.add(anchor);
+
           double px = anchor.anchor.getPose().tx();
           double py = anchor.anchor.getPose().ty();
           double pz = anchor.anchor.getPose().tz();
@@ -423,6 +421,7 @@
           } catch (ModelFileFormatException e) {
             e.printStackTrace();
           }
+          anchors.add(anchor);
           break;
         }
       }