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);
// 保护现场
MatrixState.pushMatrix();
MatrixState.translate(0, 0, -10);
if (drawWhatFlag) {
cone.drawSelf();
} else {
conel.drawSelf();
}
MatrixState.popMatrix();
}
