android opengl es 七彩星星效果_android opengl实现光照发光体特效-优快云博客

本文展示了如何在Android中使用OpenGL ES实现七彩星星闪烁的3D效果。通过创建GLSurfaceView，加载纹理，并利用随机数生成不同颜色的星星，实现星星的旋转和移动动画。代码包括Activity和Renderer类，涉及纹理坐标、顶点坐标、颜色处理和混合函数的设置。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

调试了半天，不知道原来就是那种效果，还是怎么的，反正旋转的时候有那么点别扭。可能是我写的有点问题吧。

Activity类:

package sim.feel;

import android.app.Activity;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.opengl.GLSurfaceView;
import android.os.Bundle;

public class Star extends Activity {
    private GLSurfaceView glSurfaceView;
    private MyRenderer renderer;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Load.loadBitmap(getResources());
        renderer = new MyRenderer();
        glSurfaceView = new GLSurfaceView(this);
        glSurfaceView.setRenderer(renderer);
        setContentView(glSurfaceView);
    }
}

class Load {
    public static Bitmap bitmap;

    public static void loadBitmap(Resources res) {
        bitmap = BitmapFactory.decodeResource(res, R.drawable.star);
    }
}

Renderer类:

package sim.feel;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.IntBuffer;
import java.util.Random;

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

import android.opengl.GLSurfaceView.Renderer;
import android.opengl.GLUtils;

public class MyRenderer implements Renderer {
    private int one = 0x10000;
    private IntBuffer vertexBuffer;
    private int[] vertex = new int[] { -one, -one, 0, one, -one, 0, -one, one,
            0, one, one, 0 };
    private IntBuffer coordBuffer;
    private int[] coord = { 0, 0, one, 0, 0, one, one, one };
    private int[] textures = new int[1];
    private Random random = new Random();
    // 闪烁的星星
    boolean twinkle = true;
    // star数目
    int num = 50;
    // star数目数组
    NiceStar[] star = new NiceStar[num];
    // star 倾角
    float tilt = 90.0f;
&n