I think it may depend a bit on the system / world, most the time it looks great to me. I notice it more on grass in some situations
Anyway, we're aware some enjoy it and others not so much and there's an option to disable it in the config.cfg that I've just filed
issue 503 to put into the in-game video settings screen. Would be even better with a percentile slider or something but that is likely a bit more work!
Thanks for the feedback,
CTheRain