Is ambient light possible in OpenGL?

What are "texture coordinates" used for?

Opengl uses a 3D Cartesian Coordinate System.

What is a VBO?

Once a 2D or 3D rotation is performed, is it possible to reverse the rotation?

What is a "depth buffer" and what does it accumulate?

What is usually the best texture format for upload?

What should be the render mode to use glLoadName ()?

Which function should be used to specify the value of a sampler1D?

Is the following code valid?

What is the difference between statements A and B?