Android Open Source - min3d Example Mip Map

• Back to OpenGL/library  ↑

From Project

Back to project page min3d.

License

The source code is released under:

MIT License

Java Source Code

package com.min3d;
//from   ww  w  .  jav  a  2s. co  m
import android.graphics.Bitmap;

import com.min3d.lib.Shared;
import com.min3d.lib.Utils;
import com.min3d.lib.core.Object3dContainer;
import com.min3d.lib.core.RendererActivity;
import com.min3d.lib.objectPrimitives.Box;
import com.min3d.lib.vos.Light;

/**
 * Demonstrates visual difference between a texture with mipmapping versus a texture without.
 * The cube without the mipmapped texture displays distracting, aliasing artifacts.  
 * 
 * Note how mipmapping is set on or off at the TextureManager level.   
 * (It is not controlled at the Object3d level, or the TextureVO level)
 * 
 * Mipmapping requires the target hardware to support OpenGL ES 1.1.
 * If it does not, the request to generate the MIP maps is ignored.
 */
public class ExampleMipMap extends RendererActivity
{
  Object3dContainer _holder;
  Object3dContainer _cubeWithMipMap;
  Object3dContainer _cubeWithoutMipMap;
  
  public void initScene() 
  {
    scene.lights().add(new Light());
    
    _holder = new Object3dContainer(0, 0);
    scene.addChild(_holder);
    
    _cubeWithMipMap = new Box(1.5f,1.5f,1.5f);
    _cubeWithMipMap.position().y = 1f;
    _holder.addChild(_cubeWithMipMap);

    _cubeWithoutMipMap = new Box(1.5f,1.5f,1.5f);
    _cubeWithoutMipMap.position().y = -1f;
    _holder.addChild(_cubeWithoutMipMap);
    
    //

    Bitmap b = Utils.makeBitmapFromResourceId(this, R.drawable.checkerboard);
    
    Shared.textureManager().addTextureId(b, "checkerboard_with_mipmap", true);
    Shared.textureManager().addTextureId(b, "checkerboard_without_mipmap", false);

    _cubeWithMipMap.textures().addById("checkerboard_with_mipmap");
    _cubeWithoutMipMap.textures().addById("checkerboard_without_mipmap");

    b.recycle();
  }
  
  @Override 
  public void updateScene() 
  {
    _holder.rotation().y +=1;
    _holder.rotation().z +=.25;
  }
}

Java Source Code List

• Back to OpenGL/library  ↑