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Hi, I want to use the terrain engine for a mobile game and I'm wondering how efficient it is. I also want to know how efficient Terrain.SampleHeight is? Can I use it on a per update basis? Does it use ray casts or is the data already stored? Also, on a side note, will reducing the poly-count of the terrain increase performance, and if so is there a way to adjust the poly-count of the terrain? Thanks!
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Ok. Thanks a lot guys :)
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You can use the profiler if you have Pro, or just run benchmarks if you don't.
You should definitely benchmark it as Eric says to be sure. Ancedotaly I can tell you I run them every frame for camera scripts and the performance has never been an issue.