Modelling in Scale in Maya for Unity

Unity Engine
1

Hey guys,

Could you guys help me with this one?

I need to have an apartment modeled but I need it to be in Real Life Scale, can anyone help me with this?

In maya I put Centimeters, Meters or what metric (I prefer meter or centimeter if that’s fine because it’s the metric here in my country) and how about in unity? How do I know if a Box in maya is 1 meter? So confusing, I never had to model anything in real scale :frowning:

2

You should be fine as long as you model everything in meters in Maya and import everything with scale factor 1 in Unity. I should warn you that I’ve seen that some Maya versions ignore units when exporting to FBX. Best thing is to try: just add a cube of size 1 and if you got everrything right it should be the same size as cube-primitive in Unity.

3

Yeah; I’ve tried setting units in Maya before and it seems either Unity or Maya completely ignores the setting, whether it happens on export from Maya or import to Unity I’m not entirely sure. Luckily for you, since you are working metric this is mostly a non-issue :smile:

The default unit size in Maya is 1 unit = 1 centimeter, and Unity assumes as much. Any time you import a model into Unity you’ll notice it always sets the scale at 0.01 to start with (to match Maya’s 1 unit = 1 centimeter to Unity’s 1 unit = 1 meter). So, you can either:

  1. Model using the defaults, 1 unit in Maya being 1 centimeter, and you shouldn’t have to mess with any scaling in Unity. No need to mess with settings in Maya either, just leave/set everything to defaults (just in case that does actually have an effect now).

  2. If you have to model in meters or millimeters or something else (or if you decide you just want to), simply change the import scale in Unity. If you modeled in meters, change scale to 1, if you modeled in millimeters, change scale to 0.001, etc. Make sure you’re doing this in the import settings and not by trying to scale any nodes in the editor.

4

I model in whatever units I want in Maya. But I don’t put my Maya scene files in Unity. I export to .fbx and make sure I always export as centimeters.

5

See this video, realy helpfull…