What you propose is a little old school. A step up from CPU based ROAM but a step down from modern geoclipmapping (a monolithic draw for all the terrain). At the newer end of the spectrum, you could have a single grid that uses tessellation based on distance and rockiness. Depends on if you want to support DX9.0, 10, 11.1 or 12.
TeaTreeTimMember Since 18 May 2009
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