need tutorial for terrian making. [openGL]

[yasasvin]

Hi everybody. Im the noobest of noobest in this forum. Im trying to get a 3D heightmap done using SFML and OpenGL. For past week or so I tried this retro Glut source code port into SFML but it only did work as 2D in sfml render window 

Any SFML based terrian tutorials are there ? Just simple source code to get started with.

thanks