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Question by jonjubb · May 21, 2018 at 02:57 AM · shaderstransparencycamerasvisibilityhidden

How to make a portion of an object invisible when it is behind a transparent object?

Hello All,

I am creating a game that (in general terms) has a front image, middle image, and background image on the screen all at once. The background image has a random pattern inside of it and the front image has a solid opaque thick border with a transparent inner portion (so you can see the local area of the background image through it). The front image can also be a random shape. The middle image moves across the screen from the left to the right. When the middle image is behind the front image, i would like the middle image to be invisible so that the background image is still showing through it. This problem is probably best explained through a picture rather than words, so please see the attached diagram outlining this.

I have been stuck on this for a while now, going back and forth between creating a second camera (and adjusting the depth/layer settings of each image) or using a custom shader to handle this. However, I haven't had any luck with either strategy yet.

Does anyone have any recommendations on how to solve this issue?

alt text

transparencyobject.png (69.6 kB)
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Answer by jonjubb · May 21, 2018 at 02:07 PM

After some further searching, I was able to find a video detailing how the Sprite Masking Interaction property works (https://www.youtube.com/watch?v=1QktsHJwXCQ).

I was able to solve my problem using what i learned in the video!

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