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By Design
By Design in 6000.5.X
Votes
1
Found in
2022.3.59f1
6000.0.40f1
6000.1.0b8
6000.2.0a5
6000.3.0a1
6000.4.0a1
6000.5.0a1
Issue ID
UUM-99755
Regression
No
Liquid refraction becomes incorrect when reflection probe settings are modified or disabled
Steps to reproduce:
1. Open the attached "IN-95081" project
2. Open the "RefractionBug" Scene
3. Zoom into the "Repro_GameObject" GameObject
4. In the Inspector select the assigned Liquid material and notice Refraction Model setting being set as “Planar”
5. Observe the liquid in the Scene view (liquid's refraction does not appear as expected)
6. In the Hierarchy select the "Repro_Probe" reflection probe
7. Untick "Use Influence Volume As Proxy Volume"
8. Observe the liquid refraction (issue disappears as the liquid looks as expected now)
9. Disable the “Repro_Probe” reflection probe
10. Observe the liquid in the Scene view (The issue presents itself again)
Expected result: The liquid material displays consistent and correct refraction regardless of reflection probe settings or state
Actual result: The liquid's refraction appearance changes and displays incorrectly depending on the reflection probe's settings and enabled state
Reproducible in: 2022.3.59f1, 6000.0.40f1, 6000.1.0b8, 6000.2.0a5
Reproducible on: Windows 11
Not reproducible on: No other environment tested
Note: The issue occurs not only when the reflection probe is completely disabled but also when the liquid is on a different layer than the reflection probe
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Resolution Note:
Thank you for reporting a bug to Unity.
Current behavior is expected due to how Lit shader is implemented. Screenspace Refraction utilizes Reflection Probe's influence shape as a proxy and use it for clamping inside Refraction BSDF computation. It is expected for final refraction appearance to be affected by the Reflection Probe.
Resolution Note (6000.5.X):
Thank you for reporting a bug to Unity.
Current behavior is expected due to how Lit shader is implemented. Screenspace Refraction utilizes Reflection Probe's influence shape as a proxy and use it for clamping inside Refraction BSDF computation. It is expected for final refraction appearance to be affected by the Reflection Probe.