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Votes

1

Found in

2021.3.47f1

2022.3.55f1

6000.0.32f1

6000.1.0a9

Issue ID

UUM-91617

Regression

No

Graphics.RenderMeshIndirect does not issue multi-draw rendering commands when using a graphics API capable of multi-draw commands

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How to reproduce:
1. Open the attached "IN-87308" project
2. Open the "SampleScene" and enter Play mode
3. Navigate to “Window > Analysis > Frame Debugger” and open the Frame Debugger window
4. Enable the Frame Debugger from the window
5. Navigate to “Camera.Render > Drawing > Render.OpaqueGeometry > RenderForwardOpaque.Render > RenderForward.RenderLoopJob” and expand it to reveal the “Draw Mesh” calls
6. Observe the amount of “Draw Mesh” calls inside the Frame Debugger

Expected result: Frame Debugger outputs one “Draw Mesh” call that combines all four of the vkCmdDrawIndexedIndirect calls
Actual result: Frame Debugger outputs four “Draw Mesh” calls

Reproducible in: 2021.3.47f1, 2022.3.55f1, 6000.0.32f1, 6000.1.0a9

Reproducible on: Windows 11
Not reproducible on: No other environments tested

Notes:

* Also reproducible in Player (while using a graphics debugger)
* Reproducible using both Vulkan and DirectX12

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