Hi, this is a question that has popped into my mind recently as I’ve been considering Blender as a serious tool to use in my trade(Architecture), for which I need to work with precise measures(to the centimeter, most of the times, but precision nonetheless). Thing is, I read something in the few “architecturally” oriented tutorials I’ve followed that Blender only has input up to the third decimal position… i.e. 0.00X(not sure if I’m explaining it right, my technical English not being that good). Yet when I move, it displays the differential up to four decimal places, and if I input a number with more precision I notice some sort of scientific notation pops up (N.NNNe+000…).
Further still, I’ve noticed that after I input those extra micro BU’s, if I go into the transform properties, it displays only the first 3 decimal places, even when I click on the number box. Yet if I get off the number box again(formally “re-inputing” the number it already displays), I notice a small change in position… Indicating that the objects location did have more precision than it was displayed, yet it is lost when I re-input the number with less precision.
So, what is the real precision of Blender? Up to how many fractions of a BU? When I Grab, am I moving the objects with that precision, with the fourth decimal places precision, with less precision? Why do the number boxes on the transform properties(and the Array modifier) allow for less precision than there actually is?
To whom it may concern
I know that the problem is easily solvable by assuming a BU is equivalent to a small unit, maybe the smaller you intend to use, but sometimes it is easier to think in certain larger units to me. Also, when I use big units my camera gets a bit awkward, but that’s subject for another post.