How to Make an Inverted Clipping Mask from Another Shape?

Forum|Forum|7 months ago
June 30, 2025
2 replies
624 views

Hi,

I'm working on a project where I have trees and buildings. There are trees throughout the image but I need them to fall behind the buildings and not sit above them. I would think that this would be a simple inverted clipping mask like I'd make in photoshop. How would I go about doing this by using another path shape as the mask. I'd like it to be made from a shape that I can easily edit so that I can adjust it later if I need to.

The Make Clipping Mask function only shows what is within the shape mask, and for my use case, this is rather inconvenient. I need it to be inverted/work the opposite way where it hides what is within the shape and shows the rest. I also need this to only happen within a layer such as I put it at the top of my "Trees" layer and it only clips the trees, not the buildnigs. I've attached some screenshots that hopeful.

Any help is great.

Correct answer Monika Gause

Is this an RGB document? In that case you have to make sure, that the black is RGB 000

Kurt Gold

Community Expert

At first and second glance I'm wondering if you couldn't just set up an appropriate layer structure and move the plants to layers that would be in the right stacking order.

Not quite sure without taking a look at the actual files, of course.

D

dane_7051Author

Known Participant

I thought of doing that but the main workflow problem I saw with it was that I want to control my lineweigths and colors by layer, and ideally it would just be one layer for one linetype, not spread across multiple. Additionally, the trees are infront of some objects and behind others, so I would need a number of layers just to organize the trees, and more to then organize the shapes that go in front of them. I thought that an approach of just masking the tree's I don't want to see would be a lot easier and clean.

Monika Gause

Community Expert

I think it would be easier to use an opqcity mask. Just fill the shape black, select object and black shape and in the transparency panel hit "Make mask". uncheck "Clip"

D

dane_7051Author

Known Participant

That's working pretty well, but odly even with opacity at 100% an the clipping shape 100% opacity black, it still shows. The trees are "symbols" so that I can edit the one symbol and they'll all update. Could this be why this odd transparency is happening even with the mask?