--- a/fps/fps.html	Wed May 16 17:53:54 2012 +0900
+++ b/fps/fps.html	Wed May 16 21:56:12 2012 +0900
@@ -136,35 +136,34 @@
 
 
 function setCamera(ctx){
-	ctx.viewport(0, 0, width, height);
+    ctx.viewport(0, 0, width, height);
 
     var t = width/height;
 
     ctx.perspectiveMatrix.makeIdentity();
     ctx.perspectiveMatrix.frustum(-0.5, 0.5, -0.5 / t, 0.5 / t, 1, 100000);
 
-    ctx.perspectiveMatrix.translate(-xPos,-yPos,-zPos);
-    ctx.perspectiveMatrix.rotate(xRool,0,1,0);
-
-	ctx.perspectiveMatrix.multiply(cameraMatrix);
-
+    var x = Math.cos((angle+90)*Math.PI/180 );
+    var z = Math.sin((angle+90)*Math.PI/180 );
 
-    cameraMatrix.translate(-xPos,-yPos,-zPos);
-    cameraMatrix.rotate(xRool,0,1,0);
+    cameraX += x * speedZ;
+    cameraZ += z * speedZ;
 
-	if(countX < 10)
-		countX += 0.01;
+    ctx.perspectiveMatrix.rotate(angle,0,1,0);
+    ctx.perspectiveMatrix.translate(cameraX,0,cameraZ);
+
 }
 
-countRool = 0;
-countX = 0;
+angle = 0;
+cameraX = 0;
+cameraZ = 0;
 
 FILPCOUNT = 0;
 function loop(ctx, ortho)
 {
         ctx.clear(ctx.COLOR_BUFFER_BIT | ctx.DEPTH_BUFFER_BIT);	
 
-		setCamera(ctx);
+	setCamera(ctx);
 
         PutSpriteV(ctx, cube_X, cube_Y, cube_Z, 1, matrix, object);
         PutSpriteV(ctx, cube_X2, cube_Y2, cube_Z2, 1, matrix, object2);
@@ -199,8 +198,6 @@
         var ortho = {left:0, right:200, bottom:140, top:0}
         matrix = new J3DIMatrix4(); // global variable 
         matrix2 = new J3DIMatrix4(); // global variable 
-		cameraMatrix = new J3DIMatrix4(); // global variable 
-		cameraMatrix.makeIdentity();
 
 
         cube_X = 0;