What is the range of OpenGL texture ID?

Question

I have an object which owns a property Texture_ID. I need to initialize the value for Texture_ID in constructor, so I want some value unused by OpenGL to present that the te

Answer 1

0 is the value OpenGL uses for its own default texture. It never returns that value to you and you can use that value for your error checking.

I would although suggest using -1.