One more update for today... multi-textured terrain. In my opinion, this is probably the most important aspect of rendering a realistic outdoor scene. I got the basic shader working, which allows me to splat up to four different textures onto my terrain at a resolution of 10 feet. In the picture below, the terrain only uses a basic gradient between sand and grass, which already looks a million times better then the grassy screenshots featured in my previous post.
The tricky part will be adding the functionality to my terrain editor to spit out alpha maps for texturing. This will need to take into account elevation, slope, and a few other parameters in order to create an organic and realistic texture map.
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