Hi there, I'm making a map and while I'm not finished putting up my forest, I've realized that my forest json files alone take 178 Mo. And then I remembered that those files do have a lot of decimal numbers. So I went and look how much they do have and generally there is between 7 and 12 numbers. Those mean that when I'm placing forest items, I'm doing so with a precision ranging from 100 nanometres and 1 picometre. According to Wikipedia, the smallest nucleus of an atom is the one from helium and supposed to have a diameter of 62 picometres of diameter... And with that you have the rotationMatrix and its 4 parameters with 15 decimal numbers. I'm not even sure that could be defined as an approximation. I won't speak for everyone, but 1 millimetre is largely precise enough for me in a game in which I rarely go below 50 Km/h. And in my mind nothing in-game would require a placement precision beyond 1 mm and 1/100th of degree of rotation. So I tried using regex in notepad++ on a copy of the file above, searching for : Code: (\d+\.\d{4})\d* And replacing by : Code: \1 to limit decimals to 4 numbers. N.B. : this also works on scientific notation number such as "1.931190490722656e-05" which become "1.9311e-05". That file went from taking 9.04 Mo to 5.93 Mo (a 34.4% reduction in weight). My forest could be reduced from 178 Mo to 117 Mo. All maps are concerned with this "over-precision". I"m almost sure this would also have an impact on loading times (maybe even in-game performance ?). So the suggestion is : could forest editor be tweaked to limit its precision or do we reduce them afterward ? Or is that a bad idea ? Thanks for reading !