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By Design
Votes
0
Found in
2022.3.52f1
6000.0.28f1
6000.1.0a5
6000.2.0a1
6000.3.0a1
6000.4.0a1
6000.5.0a1
Issue ID
UUM-87937
Regression
No
Water Surface renders rectangular shape when the Camera is relatively close to the surface
Reproduction steps:
1. Open the attached “BugRepro” project
2. Open the “OutdoorScene” Scene
3. Observe the Game View
Expected result: Consistent water color is seen
Actual result: Rectangular shape is seen
Reproducible with: 2022.3.52f1, 6000.0.28f1, 6000.1.0a5
Couldn’t test with: 2021.3.45f1 - No support for Water System
Reproducible on: Windows 10, Windows 11 (user), Ubuntu 24.04 (Vulkan)
Not reproducible on: MacOS (M1, Metal)
Note:
- For the Unity 6 versions the rectangular shape does not appear, but a black color is seen
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Resolution Note:
Two separate issues:
In Unity 6, the issue can be mitigated by increasing the camera’s near plane, which is currently intersecting with water ripples. This is an unfortunate side effect of the water line performance optimizations we've implemented before.
In Unity 2022.3, the visible square is expected due to Underwater Screen Space Refraction being always enabled. Rays near the screen edges fallback to the water color. In Unity 6, we introduced a dedicated toggle in the Underwater section to disable this behavior (and it is off by default).
Many thanks for reporting this! Closing as both behaviors are expected.