学步园

将png图片作为纹理贴图，在图片周围会产生黑边，在网上查了一下，都没有明确指出解决方法！废话不说了，看代码。

1.初始化

 protected void init(GL10 gl) {<br /> // Setup background color<br /> gl.glClearColor(1, 1, 1, 1);<br /> gl.glEnable(GL10.GL_BLEND);<br /> gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);</p> <p> glEnable(GL_DEPTH_TEST);<br /> glEnable(GL10.GL_ALPHA_TEST); // Enable Alpha Testing (To Make BlackTansparent)</p> <p> glAlphaFunc(GL10.GL_GREATER,0.1f); // Set Alpha Testing (To Make Black Transparent)</p> <p> // Setup project matrix<br /> gl.glMatrixMode(GL10.GL_PROJECTION);<br /> gl.glLoadIdentity();<br /> GLU.gluOrtho2D(gl, 0.0f,1.3f,0.0f,1.0f);<br /> gl.glEnable(GL10.GL_TEXTURE_2D);<br /> gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, texBuff);<br /> gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);</p> <p> tex = loadTexture(gl, bmp);</p> <p> // Smooth shading</p> <p> gl.glShadeModel(GL10.GL_SMOOTH);<br /> }</p> <p>

2.加载纹理贴图

 protected static int loadTexture(GL10 gl, Bitmap bmp, boolean reverseRGB) {<br /> int[] textures = new int[1];<br /> glGenTextures(1, textures, 0);<br /> int mTextureID = textures[0];<br /> glBindTexture(GL_TEXTURE_2D, mTextureID);<br /> glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,GL_NEAREST);</p> <p> glTexParameterf(GL_TEXTURE_2D,<br /> GL_TEXTURE_MAG_FILTER,GL_LINEAR);<br /> glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,<br /> GL_CLAMP_TO_EDGE);</p> <p> glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,<br /> GL_CLAMP_TO_EDGE);<br /> glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE,<br /> GL_REPLACE);<br /> GLUtils.texImage2D(GL_TEXTURE_2D, 0, bmp, 0);</p> <p> bmp.recycle();</p> <p> return mTextureID;<br /> }</p> <p>