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Fixed

Fixed in 6000.0.38f1, 6000.1.0a9, 7000.0.0a28

Votes

0

Found in

6000.0.0f1

6000.0.8f1

6000.1.0a1

7000.0.0a1

Issue ID

UUM-75017

Regression

No

The drawing order of Transparent objects is incorrect when changing the Material from Opaque to Transparent with GPU Resident Drawer enabled

-

Reproduction steps:
1. Open the “ReproProject“ project
2. Open the “Assets/Scene/New Scene“ scene
3. Select the “Assets/Materials/Lit“ Material in the Project window
4. Change the Surface Type to “Transparent“ in the Inspector window
5. Select the “Assets/Materials/SimpleLit“ Material in the Project window
6. Repeat step 4
7. Open the Frame Debugger window (Window > Analysis > Frame Debugger)
8. Enable the Frame Debugger by clicking the “Enable” button in the Frame Debugger window
9. Observe the “DrawTransparentObjects” rendering event

Expected result: There are 3 Draw Calls in the “DrawTransparentObjects” rendering event
Actual result: There are only 2 Draw Calls

Reproducible with: 6000.0.8f1
Couldn’t test with: 2021.3.40f1, 2022.3.35f1 (due to feature not existing)

Reproducible on: Windows 11 Pro (22H2)
Not reproducible on: No other environment tested

Notes:
1. The issue does not reproduce with the GPU Resident Drawer disabled
2. Disabling the GPU Resident Drawer and then enabling it fixes the issue

  1. Resolution Note (fix version 7000.0.0a28):

    Fixed an issue where changing the surface type of a material from opaque to transparent doesn't correctly update the batch when using the GPU Resident Drawer.

  2. Resolution Note (fix version 6000.1.0a9):

    Fixed an issue where changing the surface type of a material from opaque to transparent doesn't correctly update the batch when using the GPU Resident Drawer.

  3. Resolution Note (fix version 6000.0.38f1):

    Fixed an issue where changing the surface type of a material from opaque to transparent doesn't correctly update the batch when using the GPU Resident Drawer.

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