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Fixed in 2021.1.X

Fixed in 2020.1.X, 2020.2.X

Votes

0

Found in

2019.3

2020.1

2020.1.0b5

2020.2

Issue ID

1239035

Regression

No

Frame debugger for SRP Batcher reports unexpected Vertices and Indices read-outs when identical objects are instantiated

Hybrid Renderer

-

How to reproduce:
1. Open the attached project named "Case_1239035"
2. Open the SampleScene
3. Open the "Clone Quads.cs" and check which test case is selected. It should be case 2 with 2500 quads.
4. Enter Play mode
5. Using the frame debugger inspect the second SRP batch AfterPostProcessing->RenderLoopNewBatcher.Draw->SRP Batch
6. Observe the data in the Preview tab which shows 8 Vertices and 12 Indices
7. Exit Play mode and change the test case to 5 with 7000 Quads
8. Repeat steps 4-7

Expected result: SRP Batcher returns the same number of Vertices and Indices
Actual result: The number of Vertices and Indices gradually increases(28 vertices and 42 indices for 7000 quads)

Reproducible with: 2019.3.14f1(0.3.0-preview.4), 2020.1.0b9(0.4.0-preview.8), 2020.2.0a12(0.5.0-preview.6)
Could not test with: 2018.4.23f1(Couldn't downgrade the project)

Notes:
1. Graphics APIs tested: D3D11, D3D12, Vulkan
2. HDRP 9.0.0-preview.13 was used in the tests for 2020.1, 2020.2 and HDRP 7.3.1 was used for 2019.3
3. Hybrid renderer V1 returns a different Vertices and Indices count for the same amount quads spawned(V1 - 24 Vertices and 36 Indices, V2 - 28 Vertices and 42 Indices for 7000 quads)

  1. Resolution Note (fix version 2021.1):

    Fixed in - 2021.1.0a2

  2. Resolution Note (fix version 2020.2):

    Fixed in - 2020.2.0b9

  3. Resolution Note (fix version 2020.1):

    Fixed in - 2020.1.8f1

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