How to build a terrain in OpenGL?

Can anyone recommend any good basic tutorials on how to build terrains in opengl?

Much appreciated

yes of course :


I meant fractal generation using perlin noise

The idea is to create a 2D grid and lift up each point according the the intensity of the noise function.
Then you can generate a 3D surface and display it with Opengl.…q=&oq=undefined

Couldn’t resist.