The purpose of this paper is to generate snow-covering effects in real time for city models as post effects. Existing snow-covering effect generation technologies require various weather data and require a lot of execution time. Our algorithm creates a snow-covered map in real time based on inputs that can be directly obtained from the surface color and normal vector targeting a city model reconstructed based on photogrammetry consist of a texture and a mesh. We implemented our algorithm based on the GPU, and it shows that it works in real time. It is expected to be applied to various real-time applications as well as virtual city tour online service.
KSP Keywords
Covering effect, Generation technology, Map generation, Normal vector, Online services, Real-Time applications, Snow Cover, Time Based, city model, execution time, weather data
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