(by hisa041)
Snail is a geometric acoustic ray simulation tool.
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 With Snail, you can simulate geometric acoustic analysis on Rhino with parametric shapes. By default C # includes the Rayshoot method, but when it has a huge amount of geometry it takes time to parse. Snail solves the problem and can quickly obtain analysis results for models with more than 10000 brep. In addition, a function to select only a specific analysis plane and display only the sound rays that reach that plane is provided.