Awesome! I had been working on a similar project couldn't figure out the snow on the trees for the life of me! It's great to see how you approached it. The work look great! Thanks for sharing your process.
I believe author would be surprised that it's not american, but soviet bunker :)
ShaderMap 3 Tutorial: Baking Maps from 3D Models
This tutorial shows how to create normal models with ShaderMap 3, how to work with ambient and displacement occlusion map baking. You will also learn how to push and load cage model vertices to enclose the source model.
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