已忽略OpenGL ES 2.0颜色数组半透明

linecoordinatesbuffer.位置(0);

gles20.glclear(gles20.gl_color_buffer_bit_gles20.gl_depth_buffer_bit);

final int positionhandle=gles20.glgetattriblocation(program,“vposition”);

gles20.glvertexattribpointer(gles20.glvertexattribpointer)(
0,

final int colorhandle=gles20.glgetattriblocation(程序,“acolor”);


final int mvpmatrixhandle=gles20.glgetUniformLocation(程序,“umvpMatrix”);

gles20.gldrawarray(gles20.gl_三角形,0,24);

533,790,524,787,483,902,
76,1513,177,1636,83,1507,
950、413、905、591、960、415、


-1,-1,-1,-122,
-1,-1,-1,-122,
-1,-1,-1,97,
-1,-1,-1,-110,
-1,-1,-1,-110,
-1,-1,-1,72,
-1,-1,-1,72,



预期输出:相同,但在线条上应用了alpha



GLES20.glEnable(GLES20.GL_BLEND);
GLES20.glBlendFunc(GLES20.GL_SRC_ALPHA, GLES20.GL_ONE_MINUS_SRC_ALPHA);




    @Override
    public void onDrawFrame(GL10 gl) {
        lineCoordinatesBuffer.position(0);
        lineColorBuffer.position(0);

        GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT | GLES20.GL_DEPTH_BUFFER_BIT);
        GLES20.glUseProgram(program);

        final int positionHandle = GLES20.glGetAttribLocation(program, "vPosition");
        GLES20.glEnableVertexAttribArray(positionHandle);

        GLES20.glVertexAttribPointer(
                positionHandle,
                COORDINATES_PER_VERTEX,
                GLES20.GL_SHORT,
                false,
                0,
                lineCoordinatesBuffer);

        final int colorHandle = GLES20.glGetAttribLocation(program, "aColor");
        GLES20.glEnableVertexAttribArray(colorHandle);

        GLES20.glVertexAttribPointer(
                colorHandle,
                COLOR_BYTES_PER_VERTEX,
                GLES20.GL_UNSIGNED_BYTE,
                false,
                0,
                lineColorBuffer);

        final int mvpMatrixHandle = GLES20.glGetUniformLocation(program, "uMVPMatrix");
        GLES20.glUniformMatrix4fv(mvpMatrixHandle, 1, false, mvpMatrix, 0);

        GLES20.glDrawArrays(GLES20.GL_TRIANGLES, 0, 24);
    }




493, 906, 533, 790, 483, 902,
533, 790, 524, 787, 483, 902,
76, 1513, 177, 1636, 83, 1507,
177, 1636, 184, 1630, 83, 1507,
988, 439, 928, 531, 996, 444,
928, 531, 936, 536, 996, 444,
950, 413, 905, 591, 960, 415,
905, 591, 915, 594, 960, 415


线路颜色缓冲器

-1, -1, -1, -122,
-1, -1, -1, -122,
-1, -1, -1, -122,
-1, -1, -1, -122,
-1, -1, -1, -122,
-1, -1, -1, -122,
-1, -1, -1, 97,
-1, -1, -1, 97,
-1, -1, -1, 97,
-1, -1, -1, 97,
-1, -1, -1, 97,
-1, -1, -1, 97,
-1, -1, -1, -110,
-1, -1, -1, -110,
-1, -1, -1, -110,
-1, -1, -1, -110,
-1, -1, -1, -110,
-1, -1, -1, -110,
-1, -1, -1, 72,
-1, -1, -1, 72,
-1, -1, -1, 72,
-1, -1, -1, 72,
-1, -1, -1, 72,
-1, -1, -1, 72