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I create a VBO in a function and I only want to return the VBO id.
I use glDrawArrays in another function and I want it to draw all the vertices in the VBO without needing to also pass the number of vertices. The VBO also contains texture coordinate data.
Thank you.
You need to return it, sorry. Data about the VBO might live somewhere far away from your CPU and be slow to access, so you need to keep locally whatever data you need.