I am new to creating generators and transitions in Motion and using them in Final Cut X. I'm sorry if this is a basic question but I cant find the answer anywhere.
I've created a generator and would like to limit the length of it. When it's placed in Final Cut X, it comes in at 4 seconds. I would like to restrict the length to 4 seconds so it can't be extended or shortened.
Then you'll need to use something other than a generator, since that's their nature and the whole point behind them. They are resolution and time independent, no matter what. Unless there's a setting/option that I'm not aware of.
You can't do anything in Motion to stop an editor changing the duration of a generator in Final Cut. You can however make sure it only shows content for 4 seconds or less - however much the editor increases the duration of the generator in the timeline.
Set up the Motion generator to be 4 seconds long and 1 frame.
Create your content so its duration is 4 seconds long
Deselect everything, go to the last empty frame
Set a marker: Mark > Markers > Set Mark
Choose Mark > Markers > Edit Marker
Change the new marker's Type to 'Build In - Mandatory'
Now when you use this generator in Final Cut, it won't scale any of your work in time - all behaviours and animations and duration will be fixed to 4 seconds and then vanish - if you make sure no content is visible in that last frame.