怎么办多重采样在Android中的OpenGL ES？ [英] How to do Multisampling in Android OpenGL ES?

问题描述

可能重复：
  <一href="http://stackoverflow.com/questions/4934367/how-to-get-rid-of-jagged-edges-in-android-opengl-es">How摆脱在Android的OpenGL ES的锯齿状边缘？

我想要做的抗锯齿我appliction.But这是行不通的，无论我做什么。 我的code是

I want to do Antialiasing in my appliction.But it doesn't work no matter what I did. My code is

public void onSurfaceCreated(GL10 gl, EGLConfig config){        
    g10 = gl;
    gl.glClearColor(0f, 0, 0.0f, 1.0f);
    gl.glEnableClientState(GL10.GL_VERTEX_ARRAY);
    gl.glEnableClientState(GL10.GL_TEXTURE_COORD_ARRAY);
    gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_S,
            GL10.GL_REPEAT);
    gl.glTexParameterx(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_T,
            GL10.GL_REPEAT);

    gl.glSampleCoverage(1.f, true);
    gl.glEnable(GL10.GL_DITHER);
    gl.glEnable(GL10.GL_MULTISAMPLE);
    gl.glEnable(GL10.GL_POINT_SMOOTH); 
    gl.glEnable(GL10.GL_LINE_SMOOTH);
    gl.glEnable(GL10.GL_SAMPLE_COVERAGE);
    gl.glPointSize(8); 
    gl.glLineWidth(5); 
    gl.glHint(GL10.GL_POINT_SMOOTH_HINT, GL10.GL_NICEST); // Make round points, not square points 
    gl.glHint(GL10.GL_LINE_SMOOTH_HINT, GL10.GL_NICEST); // Antialias the lines
}

public void draw(GL10 gl){
    gl.glClearColor(0f, 0, 0.0f, 1.0f);
    gl.glClear(GL10.GL_COLOR_BUFFER_BIT | GL10.GL_DEPTH_BUFFER_BIT);
    gl.glTexEnvf(GL10.GL_TEXTURE_ENV, GL10.GL_TEXTURE_ENV_MODE, GL10.GL_MODULATE);
    gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);

    gl.glEnable(GL10.GL_TEXTURE_2D);
    gl.glEnable(GL10.GL_BLEND);
    gl.glBindTexture(GL10.GL_TEXTURE_2D, mTexture[0]);  
    gl.glFrontFace(GL10.GL_CCW);   

    gl.glTexCoordPointer(2, GL10.GL_FLOAT, 0, m_TexBuffer[i]);
    gl.glVertexPointer(3, GL10.GL_FLOAT, 0, m_VertexBuffer[i]);
    gl.glDrawElements(GL10.GL_TRIANGLE_FAN, vertexCount, GL10.GL_UNSIGNED_SHORT, mIndexBuffer);     

}

它没有做任何work.Please告诉我为什么。谢谢你。

It didn't do any work.Please tell me why. Thank you.

推荐答案

如果你想要做FSAA，你需要创建一个EGL上下文多重采样功能。写的<一href="http://developer.android.com/reference/android/opengl/GLSurfaceView.EGLConfigChooser.html">EGLConfigChooser返回一个多重采样配置（指定1 <一个href="http://developer.android.com/reference/javax/microedition/khronos/egl/EGL10.html#EGL_SAMPLE_BUFFERS">EGL_SAMPLE_BUFFERS),并把它传递给<一个href="http://developer.android.com/reference/android/opengl/GLSurfaceView.html#setEGLConfigChooser%28android.opengl.GLSurfaceView.EGLConfigChooser%29">setEGLConfigChooser.

If you want to do FSAA, you need to create an EGL context with multisampling enabled. Write an EGLConfigChooser that returns a multisampling config (specify 1 for EGL_SAMPLE_BUFFERS), and pass it to setEGLConfigChooser.

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