@Override
public void onDrawFrame(GL10 gl) {
// 清除深度缓冲与颜色缓冲
GLES20.glClear(GLES20.GL_DEPTH_BUFFER_BIT | GLES20.GL_COLOR_BUFFER_BIT);
MatrixState.pushMatrix();
MatrixState.translate(0, -2, 0);
desert.drawSelf(desertId);
MatrixState.popMatrix();
// 开启混合
GLES20.glEnable(GLES20.GL_BLEND);
// 设置混合因子
GLES20.glBlendFunc(GLES20.GL_SRC_ALPHA, GLES20.GL_ONE_MINUS_SRC_ALPHA);
MatrixState.pushMatrix();
MatrixState.translate(0, -2, 0);
group.drawSelf();
MatrixState.popMatrix();
// 关闭混合
GLES20.glDisable(GLES20.GL_BLEND);
}
