Android opengl modify vertex array after draw call

In opengl, is it 开发者_JS百科bad practice or not recommended to modify the vertex array after I have drawn it?

It's not bad practice if you modify the vertex array when you draw it as ordinary vertex array.

It's bad practice to modify the vertex array if you use vertex buffer objects in your draw method. That's because you have to reupload it to your VRAM once it is edited.