Isn't nanite in unreal engine exactly that?
To be clear, I'm not proficient in it's use, just watched a few videos about it's theory when it was initially announced
No, nanite is just having different levels of detail for objects, and which LOD gets selected is done automatically by the engine. So users can use ultra-high-def models (including 3d scans of real-world objects), and the engine automatically generates and uses lower polygon versions for when the object is far away or whatever.
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