Dirk Reiners wrote: > Hi Simon, > > Simon Haegler wrote: > >> i will start with adding an absolute fading range around each threshold, and >> simply do a linear fade between the two adjacent lods. >> > Crossfading is not as simple as it sounds. SGI did it in Performer, but > the only way to really make it work is using multisampling, as you don't > want to fade the models to/from transparent, as that would allow you to > see inside it, you want to fade the images of the actual models. > Multisample masks are the only efficient way to do that, and they don't > work very well if you only have two samples. > Another way that's useful for trees & foliage, is to use a randomized alpha map and blend via alpha-test. A bit ditherish, but foliage is pretty ditherish anyway. It depends on your app if it will look good or not though.
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