I'm going to create a metric map with scale 1000 x 1000 meters then create buildings and roads and vehicles with the same size as real world size. a project for both animation and export to unity 3D. 1. how can i create a plane with 1000x1000 meters in metric unit in blender? 2. how can i create buildings, vehicles as real size in metrics?
How to scale units from blender to unity?
Next, in our 3d viewport, the meters at the top left. this only means the grid space now understands metric units and tells us that the grid is measured in meters.
Next Select the cube > open “n” properties tab in the 3d view port > shift + left click drag on top of the x,y,z > set scale from 0.5 to 1
Next in Object > Apply > scale
Notice scale is now set to ones.
Next Export as either obj or FBX from blender > remember to name your file
Make sure only selected objects and mesh is highlighted
Then hit export Next Open up unity > game object > 3d object > cube
To preview a Unity cube Next Import our cube by right-clicking in the empty space inside assets folder
Import new asset
Browse for the FBX file we just created
Left click and drag the model into the scene to compare to the Unity cube
Units are chosen exactly where you are looking at. If you choose metric units and set the scale to 0.001, the unit will be 1mm, and if you set the scale to 1.00, the unit will be 1 meter, that would be appropriate for your purpose.
You can then use any units in relation to these settings. If you typed 1km into dimension inputs of a plane, it would be scaled to 1000 units(1000 meters):
Note that you might need to adjust clipping planes of the viewport and your cameras for everything to be displayed correctly as well.