小编Rob*_*nić的帖子

我正在为Android制作应用程序,我画了一个三角形,我可以旋转它但不动它!我的问题为什么？

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源代码:

package com.uraniumdevs.projectx;

import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.FloatBuffer;
import java.nio.ShortBuffer;

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

import android.opengl.GLES20;
import android.opengl.GLSurfaceView;
import android.opengl.Matrix;
import android.util.Log;

public class MyGL20Renderer implements GLSurfaceView.Renderer {

        private static final String TAG = "MyGLRenderer";
        private Triangle mTriangle;
        private Square mSquare;

        private final float[] mMVPMatrix = new float[16];
        private final float[] mProjMatrix = new float[16];
        private final float[] mVMatrix = new float[16];
        private final float[] mRotationMatrix = new float[16];
        private final float[] mTranslationMatrix = new float[16];

        // …