Why doesn't this expression work?

I use expression:

Code: Select all

time/(GlobalOut-GlobalIn)

To convert clip's frame range to value falling into interval <0;1>. For some reason Fusion refuses to take the result for Width, Height etc. When I have it display it with Text() in Text+, it displays correct results. What's wrong with it?

Where are you using it for Width and Height?

Where are you using it for Width and Height?

I am using it in Mask node (Mask Ellipse)... which I just realized is the problem. Mask nodes do not have GlobalIn/GlobalOut. I have to reference the parent node. Problem solved, sorry about not figuring this earlier.