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By Design
Votes
0
Found in
2019.4
2020.3
2020.3.31f1
2021.2
2022.1
2022.2
Issue ID
1414822
Regression
No
Shadows are rendered behind a Mesh when its Shader is Unlit, and the Render Queue is set to Transparent
How to reproduce:
1. Open the user's attached "bake_alpha" project
2. Open the "bake" Scene
3. Open the "Window -> Rendering -> Lighting" window from the menu
4. Select "Generate Lighting" to precompute lighting data
5. Observe the generated lighting on the Plane behind the Mesh in the Scene view
Expected results: The light behind the Mesh is rendered without any shadows or artifacts
Actual result: Shadow is rendered behind the Mesh
Reproducible with: 2019.4.37f1, 2020.3.32f1, 2021.2.18f1, 2022.1.0b14, 2022.2.0a9
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Resolution Note:
This is expected. Resulting shadow artifacts on the ground are caused by the backfaces on the transparent plane. To mitigate this issue enable Double Sided Global Illumination toggle in the Material inspector. Alternatively, create a new Lightmap Parameters asset, assign it to the ground mesh, and tweak the Backface Tolerance value.