an interesting idea. i think that trebor777 is right tho. its just one calculation of the distance formula. there is perhaps a more significant problem. speaking in general about the graphics pipeline to get into 'screen space' (ie) device coordinates you have to push the geometry through the whole pipeline. so when you…
so to come back on a couple of the points made first is regarding having to get the full res LOD for the calculation, unless the silhouette is completely different from LOD - LOD then it wouldn't matter, if the lower LOD starts taking up too much for that res, then step it up to the next LOD. the second, regarding pushing…