I can't make hole use boolean

I want to make some holes from these sediment objects to Ci Liwung Object but it fails. Can you help me with this problem?

here I embed the project file
Build River

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Hi! Sorry about my bed English
Check out:

  1. Are the normals on the model ok?
  2. Reset Transform(Ctr+A) in Object mode

The normals on the Sedimen 1 is facing the wrong way. Tab into edit mode → Select All → F3 → Recalculate Normals would fix it.

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I can’t make it. I tried many times. Is there something i missed?
But I found some edges block the hole that I want.

here’s my recording of trying it. You can see here

You’re recalculating normals “inside”. Make sure you uncheck the inside. Just select the mesh Sedimen 1. The other mesh was fine when I checked.

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thanks, it works

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No worries :slightly_smiling_face:

Do you know about Unity @Diroshi_Fernando?
I had export this model and import it to Unity with fbx format but the terrain texture became grey.

Could you help me with this?

I’m sorry. I’m not familiar with Unity. However, I came across this video on YouTube which explains how to get your textures back in Unity when you import. Hope it’ll resolve your problem.