Outerra http://www.outerra.com/ 3D planetary engine for seamless planet rendering from space down to the surface. Can use arbitrary resolution of elevation data, refining it to centimeter resolution using fractal algorithms. The level of details extends to weather simulation and seasons. Like snows smelts, rivers dries, rain creates flows. It is extremely impressive, and makes me very disappointed of CIG. They did everything CIG couldn`t in less time with less budget. Shame on you CIG!!!! Let the videos talk for themselves.