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Fixed in 2022.1.X

Fixed in 2020.3.X, 2021.2.X

Votes

0

Found in

2019.4

2020.3

2021.1

2021.1.22f1

2021.2

2022.1

Issue ID

1375960

Regression

No

Particle System uses incorrect Transform Matrices for Motion Vectors when Shadow casting is enabled

Visual Effects - Legacy

-

How to reproduce:
1. Open the user's attached project
2. Open scene Scenes/SampleScene
3. Press the Play button and observe the Game view
4. In the Hierarchy window, select the GameObject "TestPS"
5. In the Inspector view, under the Particle System component, select the Renderer module
6. Set the Cast Shadows setting to "On"
7. Observe the Game view

Expected result: the test texture (Particle) remains fully blurred
Actual result: the test texture (Particle) is only partially blurred

Reproducible with: 2019.4.32f1, 2020.3.21f1, 2021.1.27f1, 2021.2.1f1, 2022.1.0a13

Notes: the Particle flickers when Shadow casting is enabled from 2021.2.0a21 onwards

  1. Resolution Note (fix version 2022.1):

    Fixed in 2022.2.0a4

  2. Resolution Note (fix version 2022.1):

    Fixed in 2022.1.0b7

  3. Resolution Note (fix version 2021.2):

    Fixed in 2021.2.11f1

  4. Resolution Note (fix version 2020.3):

    Fixed in 2020.3.28f1

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