The idea was to have a more detailed terrain but only showing a few "tiles" to spare memory. Do you think it's not worth it? In the meantime i'm trying a different approach, creating a icosphere and breaking it up into more sections depending whether you are in that particular triangle or not. This way i can potentially render the whole icosphere in low res (say the 12 initial faces) and as i approach the planet in the direction of a certain triangle i would subdivide that one more and more as i go further closer to the surface. Then as i move around the globe, i can subdivide the triangle i am currently in, and undivide the one i just left. Does it make sense? Or do you think most machines nowadays can handle the necessary triangles to have a small planet all in memory?