Android Open Source - OpenGlDraw_Android Renderer Draw

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Back to project page OpenGlDraw_Android.

License

The source code is released under:

GNU General Public License

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Java Source Code

package com.example.opengldraw.gl;
//from   w  w w.j  av a 2 s .c  o m
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;

import android.content.Context;
import android.opengl.GLES10;
import android.opengl.GLSurfaceView;

public class RendererDraw implements GLSurfaceView.Renderer {

  private ShapeDrawer shapeDrawer;
  volatile float myAngleY;
  volatile float myAngleX;
  private Context ctx;
  
//  private static boolean boundaryX;
  
  public RendererDraw(Context aCtx) {
    super();
    ctx = aCtx;
  }
  
  @Override
  public void onDrawFrame(GL10 gl) {
    gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);

    gl.glMatrixMode(GL10.GL_MODELVIEW);
        gl.glLoadIdentity();
        gl.glTranslatef(0.0f, -0.5f, -5.0f);
        
        gl.glRotatef(myAngleY,  0, 1, 0);
        gl.glRotatef(myAngleX,  1, 0, 0);
        
//        if(boundaryX) {myAngleX += 1;} else {myAngleX -= 1;};
//        myAngleY -= 1;
//        if(myAngleY < -359) {
//          myAngleY = 0;
//        }
//        if(myAngleX < - 30) {boundaryX = true;}
//        if(myAngleX > 30) {boundaryX = false;}
//        gl.glRotatef(myAngleY,  0, 1, 0);
//        gl.glRotatef(myAngleX,  1, 0, 0);
        
        shapeDrawer.draw(gl);
  }

  @Override
  public void onSurfaceChanged(GL10 gl, int width, int height) {
    GLES10.glViewport(0, 0, width, height);
    
    float ratio = (float) width / height;
        gl.glMatrixMode(GL10.GL_PROJECTION);
        gl.glLoadIdentity();
        gl.glFrustumf(-ratio, ratio, -1, 1, 1, 10);
  }

  @Override
  public void onSurfaceCreated(GL10 gl, EGLConfig config) {
    GLES10.glClearColor(0.4f, 0.4f, 0.4f, 1.0f);
    
    gl.glDisable(GL10.GL_DITHER);
        gl.glHint(GL10.GL_PERSPECTIVE_CORRECTION_HINT, GL10.GL_FASTEST);
        gl.glShadeModel(GL10.GL_SMOOTH);
        gl.glEnable(GL10.GL_DEPTH_TEST);
        
        gl.glEnable(GL10.GL_LIGHTING);
        gl.glEnable(GL10.GL_LIGHT0);
        float lightAmbient[] = new float[] { 0.5f, 0.5f, 0.5f, 1.0f };
        float lightDiffuse[] = new float[] { 0.3f, 0.3f, 0.3f, 1.0f };
        float lightSpecular[] = new float[] { 0.3f, 0.3f, 0.3f, 1.0f};
        float[] lightPos = new float[] { 1, 1, 1, 1 };
        gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_AMBIENT, lightAmbient, 0);
        gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_DIFFUSE, lightDiffuse, 0);
        gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_SPECULAR, lightSpecular, 0);
        gl.glLightfv(GL10.GL_LIGHT0, GL10.GL_POSITION, lightPos, 0);
        
        /* set the materials to the same color values as the object (or at least one of the materials) */
        float matAmbient[] = new float[] { 234/255f, 234/255f, 234/255f, 1 };
        float matDiffuse[] = new float[] { 234/255f, 234/255f, 234/255f, 1 };
        gl.glMaterialfv(GL10.GL_FRONT_AND_BACK, GL10.GL_AMBIENT, matAmbient, 0);
        gl.glMaterialfv(GL10.GL_FRONT_AND_BACK, GL10.GL_DIFFUSE, matDiffuse, 0);

        shapeDrawer = new ShapeDrawer(ctx);
  }
  
  public ShapeDrawer getShapeDrawer() {
    return shapeDrawer;
  }
}

Java Source Code List