Search Issue Tracker

Fixed in 2021.2.X

Planned for 2020.3.X, 2021.1.X

Votes

0

Found in

2018.4

2019.4

2020.2.0f1

2020.3

2021.1

2021.2

Issue ID

1323892

Regression

No

Fwidth behavior is inconsistent between DX11/DX12 and OpenGL/Vulkan

Shader System

-

How to reproduce:
1. Open the user attached project
2. Open the SampleScene
3. Observe the Sphere in the Game view. Notice that the applied texture does not have a seam
4. Switch the Graphics API to OpenGLCore or Vulkan
5. Observe the Sphere in the Game view again

Expected result: The applied texture does not have a seam
Actual result: The applied texture has a seam

Reproducible with: 2018.4.33f1, 2019.4.24f1, 2020.3.4f1, 2021.1.3f1, 2021.2.0a13

Notes:
1. The seam does not occur when D3D11 or D3D12 APIs are used
2. The issue occurs in Editor and in Player

  1. Response avatar

    Resolution Note (fix version 2021.2):

    Vulkan and desktop OpenGL support (via extension) for fine/coarse derivatives is incoming
    Fixed in - Unity 2021.2.0a20

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.