Need help with a rendering method regarding a see through object system | Official Unity Discord | Page 1

covert vapor Feb 17, 2026, 6:07 AM

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I followed this video: https://www.youtube.com/watch?v=jidloC6gyf8 I really like the idea, but the issue I'm running into it that its blocking out whats behind the target object aswell. I've looked online, asked AI, briefly checked forums, but cant find an obvious solution. I found this post: https://discussions.unity.com/t/boolean-cutout-shader-using-urp-render-features-render-objects-and-multiple-passes/872986 from almost 4 years ago, but don't know how to implement it for myself. see attached images for context on everything, ignore the weird floor texture lol. Hoping someone can take a look and offer some guidance. feel free to ping me and ask any questions

YouTube

Daniel Ilett

Wall Cutout in Unity Shader Graph

Many games need to make sure the focus is on the player or some other object, and walls are usually a hindrance. You could move the camera past the wall or render things over it.

In this tutorial, we'll just cut a hole in the wall instead. I've seen a wall cutout effect before in a handful of ways, so I'm going to take an alternative approach t...

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lone edge Feb 17, 2026, 10:19 AM

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You could pass the object position (or at least, camera relative depth) and use it in the graph to no change the alpha of objects that are further.

covert vapor Feb 17, 2026, 7:09 PM

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lone edge You could pass the object position (or at least, camera relative depth) and use ...

I think I get what you are saying to do, the problem is I've never worked with unity graphs before. implementing that idea is foreign to me. I'm going to do some research on how to pass this data around and use it in this shader. thanks for the sugegstion, if you have any more info to share I'd love to hear it

round wolf Feb 17, 2026, 9:59 PM

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covert vapor I followed this video: https://www.youtube.com/watch?v=jidloC6gyf8 I really lik...

The stencil culls both walls, what they don't show in the video is the raycast actually specifies a stencil buffer value for the wall to cull. Daniel usually has some good videos but he left out a crucial detail here.

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Basically, this is a hard problem to solve with just the stencil logic alone. You need that raycast information to prevent this issue.

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Oh wait, I'm thinking about his other video. He uses an alpha clipping mask in this one, but similar issue here where he uses a wall layer to specify what is actually being clipped. Problem is if both walls have the same layer and shader then it'll clip both.

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But Remy's idea is pretty good too assume no two walls are close together

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My bandaid idea here would be just chunk the walls great enough that you can swap shaders on sections on the fly.

covert vapor Feb 17, 2026, 10:08 PM

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Not a bad idea, considering the the camera is usually going to be on one side most of the time, toggling the shader depending on camera rotation/position wouldnt be hard

#Need help with a rendering method regarding a see through object system