MainActivity 와 GLRenderer

MainActivity

 

package com.example.opengl;

import android.app.Activity;
import android.opengl.GLSurfaceView;
import android.os.Bundle;
import android.view.Menu;

public class MainActivity extends Activity {
 private GLSurfaceView mGLSurfaceView;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
    
  mGLSurfaceView = new GLSurfaceView(this);
  mGLSurfaceView.setRenderer(new GLRenderer());
  
  setContentView(mGLSurfaceView);
  
 }

 @Override
 public boolean onCreateOptionsMenu(Menu menu) {
  // Inflate the menu; this adds items to the action bar if it is present.
  getMenuInflater().inflate(R.menu.activity_main, menu);
  return true;
 }

}

 

GLRenderer

 

package com.example.opengl;

import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;

import android.opengl.GLSurfaceView.Renderer;

public class GLRenderer implements Renderer {

 @Override
 public void onDrawFrame(GL10 gl) {
  // TODO Auto-generated method stub
   gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
 }

 @Override
 public void onSurfaceChanged(GL10 arg0, int arg1, int arg2) {
  // TODO Auto-generated method stub

 }

 @Override
 public void onSurfaceCreated(GL10 gl, EGLConfig config) {
  // TODO Auto-generated method stub
  //배경을 흰색으로 clear 
  gl.glClearColor(1, 1, 0, 0); 
  //glHint - 특정한 렌더링 기능에 대한 선택적인 제어  
  gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_FASTEST);

 }

}