My English is not good,I hope you can understand my meaning.,THX . .I just start do this,and I have the source code ,which created by MFC...

Its a bit of a stretch to just ask people to write code for you or to share their own.

Evan though i hate this suggestion.. Have you tried googling it for yourself? - This will more the likely give you more results, as you have not given any information on what languages you are using or how you are rendering it.

Have a look at some articles in http://vterrain.org/ and see what you can come up with - and then maybe come back for help and suggestions with it

Its a bit of a stretch to just ask people to write code for you or to share their own.

Evan though i hate this suggestion.. Have you tried googling it for yourself? - This will more the likely give you more results, as you have not given any information on what languages you are using or how you are rendering it.

Have a look at some articles in http://vterrain.org/ and see what you can come up with - and then maybe come back for help and suggestions with it

thanks for your reply.I am sorry for my words.And I just want to learn this algorithm?Opengl 4.0+ has tessellation shader.And So many algorithms, why do we need tessellation ?

Do not do ROAM. It is dead. DEAD.

Tessellation exists for several reasons. One of this reasons is that ROAM was too much work for too little benefit.

THX ,Now I am writing chunked LOD algorithm.My research is GIS,and I don't know which algorithm often to be used in games.