It happens to me time and time again: I want to select an object in a busy scene, move it from a far away view, and it turns out I’m actually moving something else – perhaps the ground plane, or vital objects in the background.
Wouldn’t it be nice to lock objects that you never want to move in Carrara? Lucky for us – there is such an option! It’s done using the Constraints Tab (under Motion).
First select the object you want to be come “immovable”. You can even select several objects by holding SHIFT. Do this either in the scene or in the scene hierarchy.
Now head over to Motion and examine the Constraints drop down menu.
Set your object(s) to Full and they can’t be moved anymore. Easy as that!
Constraints are quite powerful as you can see from the various options in the drop down. Some of the interesting ones are:
- 2D Plane: allows you to move the object in only two directions
- Axis: allows movement along a single axis
- Ball Joint: specify how far rotation is allowed along any given axis (used in rigging, for example so that a door can only open so far in one direction)