Best way to create a terraforming system

Questions
1

Would the best way to implement a terrain system like the video I linked below be through using individual planes as a tile, or would it better to dynamically alter a single big terrain mesh in subsections. The game I am building will be top down (to an angle) so you can only ever seen a few thousand tiles at any given time.

You can see the terrain system in action @ 2:00 in the video

2

Welcome aboard!

I think I would split the terrain in chunks (the size of each chunk depending on the total size of the terrain), so that the parts that are not in the frustum are quickly culled and not sent to the GPU.

Also, you can look for “terrain” in this forum, there has been quite a number of threads related to this subject.

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