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Votes

0

Found in

2021.3.36f1

2022.3.21f1

2023.2.13f1

2023.3.0b10

Issue ID

UUM-65770

Regression

No

Terrain surface has holes when its height is increased significantly

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Reproduction steps:
1. Open the attached “BugRepro” project
2. Open the “Assets/Scenes/SampleScene“
3. Observe the Game View

Expected result: The “Terrain_Amplify” GameObject is solid and does not have any holes
Actual result: The “Terrain_Amplify“ GameObject has pixel sized holes

Reproducible with: 2021.3.36f1, 2022.3.21f1, 2023.2.13f1, 2023.3.0b10

Reproducible on: Windows 11 (GTX 1650 (Laptop)), macOS 14.1.1 (M2 Max) (By user)
Not reproducible on: No other environment tested

  1. Resolution Note:

    The hlsl Precise keyword must be used in shaders when leveraging tessellation to ensure that the resulting mesh is watertight. Precise positions and tessellation factors will ensure that different executions of each stage of the shader do not result in floating point differences resulting in gaps in geometry

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