glBufferSubData

[Haroogan]

Let's take a look at this function, for instance:

glBufferSubData(int target, long offset, java.nio.ByteBuffer data)

I suppose that ByteBuffer's position and limit tell the size (e. g. remaining). Ok, then position should also tell the same thing as offset does, then why there is offset here? I mean offset is excessive in this case, isn't it?

[spasi]

It's not excessive, because then you wouldn't be able to update a big buffer object with a small ByteBuffer.

[Haroogan]

NVM, I got it