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VR not showing when using 'Rendered' or 'Material preview' shading, on Blender 4.3 #125456

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opened 2024-07-25 20:51:45 +02:00 by Opheroth · 3 comments
Opheroth commented 2024-07-25 20:51:45 +02:00
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System Information
Operating system: Windows 11 Home
Graphics card: Nvidia RTX 3060
Meta Quest 3 Using SteamVR

Blender Version
Broken: 4.3.0, alpha+main, 'b8eb87258348', 2024-07-17
Worked: 4.3.0, alpha+main, 'e30a1326a44c', 2024-07-16

Short description of error
VR session won't show any image when using 'Rendered' or 'Material preview' shading. It shows a black screen and only the outline of selected objects and axis from the VR Controllers are visible.
Using 'Wireframe' or 'Solid', shows correctly the scene on the VR headset

Exact steps for others to reproduce the error
Using Default scene when opening Blender:

  1. Enable VR Addon if not activated
  2. Start VR Session
**System Information** Operating system: Windows 11 Home Graphics card: Nvidia RTX 3060 Meta Quest 3 Using SteamVR **Blender Version** Broken: 4.3.0, alpha+main, 'b8eb87258348', 2024-07-17 Worked: 4.3.0, alpha+main, 'e30a1326a44c', 2024-07-16 **Short description of error** VR session won't show any image when using 'Rendered' or 'Material preview' shading. It shows a black screen and only the outline of selected objects and axis from the VR Controllers are visible. Using 'Wireframe' or 'Solid', shows correctly the scene on the VR headset **Exact steps for others to reproduce the error** Using Default scene when opening Blender: 1. Enable VR Addon if not activated 2. Start VR Session
Opheroth added the
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 labels 2024-07-25 20:51:45 +02:00
Alaska commented 2024-07-26 03:44:41 +02:00
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I can confirm this issue in 4.3.0 alpha and not 4.2. I will look into bisecting.

System Information
Operating system: Windows-10-10.0.22631-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 4090/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 556.12
Blender version: 4.3.0 Alpha, branch: main, commit date: 2024-07-26 00:26, hash: b4d5c6eea583

I can confirm this issue in 4.3.0 alpha and not 4.2. I will look into bisecting. **System Information** Operating system: Windows-10-10.0.22631-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 4090/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 556.12 Blender version: 4.3.0 Alpha, branch: main, commit date: 2024-07-26 00:26, hash: `b4d5c6eea583`
Alaska commented 2024-07-26 04:40:11 +02:00
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Bisecting points to it being caused by c72a1d698e

CC @fclem

Bisecting points to it being caused by c72a1d698ed1af2e68d78ce809440530f2c3ac36 CC @fclem
Bart van der Braak added
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 labels 2024-08-14 12:54:48 +02:00
Opheroth commented 2024-08-16 09:22:58 +02:00
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Doing some testing in the file:

source/blender/draw/engines/eevee_next/eevee_camera.cc

bringing back overscan section for viewport rendering, from 2b248d2720 into the actual code
allows me to see again the VR Session on my headset, I know this could introduce more bugs doing it this way, but it was just to try to delimit the problem.
I'm not into the full Blender source code, but I hope this info could help you.

Doing some testing in the file: source/blender/draw/engines/eevee_next/eevee_camera.cc bringing back overscan section for viewport rendering, from 2b248d2720 into the actual code allows me to see again the VR Session on my headset, I know this could introduce more bugs doing it this way, but it was just to try to delimit the problem. I'm not into the full Blender source code, but I hope this info could help you.
Jeroen Bakker added this to the 4.3 milestone 2024-08-26 09:43:11 +02:00
Jeroen Bakker added this to the Viewport & EEVEE project 2024-08-26 09:43:15 +02:00
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