Rendering in cycles causes objects with materials to go black and shiny when using the GPU #110550

New Issue

Dylan-Peters-1 · 2023-07-27T19:18:52+02:00

Dylan-Peters-1 commented

2023-07-27 19:18:52 +02:00

System Information
Operating system: Windows-10-10.0.22621-SP0 64 Bits
Graphics card: AMD Radeon RX 7900 XT ATI Technologies Inc. 4.5.0 Core Profile Context 23.7.1.230626

Blender Version
Broken: version: 3.6.1, branch: blender-v3.6-release, commit date: 2023-07-17 12:50, hash: 8bda729ef4dc
Worked: N/a

Short description of error
When my render engine is set to cycles and device is set to GPU Computer (with HIP and my 7900 XT selected), if I look at an object with a material applied in either viewport shading or as a rendered image the model will appear black and shiny or occasionally will just show as a flat blue colour.

This issue does not occur when using the CPU as the device instead and also did not begin to occur until a few days ago (prior to which it was working fine).

I've checked the same blender file on a laptop with a 3060 GPU which worked correctly so I don't think the file itself is corrupted.

I have also checked multiple blend files, some of which work fine, others do not, one file has some things working and other things broken (I will attach it to this bug report)

Exact steps for others to reproduce the error

Load the attached blend file "ArkenV1R1_Interior.blend".
Go to edit > preferences > system > cycles render devices, set it to HIP with RX 7900 XT selected.
Under scene settings, change the render engine to cycles and device to GPU compute.
Switch to Viewport shading.
Observe that the bullets and floor panel are shown as black and shiny while the table renders correctly (grey and blue).
Press F12 and observe that the rendered image also shows the bullets and floor panel as black and shiny.

Additional
IncorrectRender.png was rendered using GPU
CorrectRender.png was rendered using CPU

I will be happy to provide anything else needed to figure this out, thanks!

**System Information** Operating system: Windows-10-10.0.22621-SP0 64 Bits Graphics card: AMD Radeon RX 7900 XT ATI Technologies Inc. 4.5.0 Core Profile Context 23.7.1.230626 **Blender Version** Broken: version: 3.6.1, branch: blender-v3.6-release, commit date: 2023-07-17 12:50, hash: `8bda729ef4dc` Worked: N/a **Short description of error** When my render engine is set to cycles and device is set to GPU Computer (with HIP and my 7900 XT selected), if I look at an object with a material applied in either viewport shading or as a rendered image the model will appear black and shiny or occasionally will just show as a flat blue colour. This issue does not occur when using the CPU as the device instead and also did not begin to occur until a few days ago (prior to which it was working fine). I've checked the same blender file on a laptop with a 3060 GPU which worked correctly so I don't think the file itself is corrupted. I have also checked multiple blend files, some of which work fine, others do not, one file has some things working and other things broken (I will attach it to this bug report) **Exact steps for others to reproduce the error** 1. Load the attached blend file "ArkenV1R1_Interior.blend". 2. Go to edit > preferences > system > cycles render devices, set it to HIP with RX 7900 XT selected. 3. Under scene settings, change the render engine to cycles and device to GPU compute. 4. Switch to Viewport shading. 5. Observe that the bullets and floor panel are shown as black and shiny while the table renders correctly (grey and blue). 6. Press F12 and observe that the rendered image also shows the bullets and floor panel as black and shiny. **Additional** IncorrectRender.png was rendered using GPU CorrectRender.png was rendered using CPU I will be happy to provide anything else needed to figure this out, thanks!

ArkenV1R1_Interior.blend

5.1 MiB

IncorrectRender.png

1.8 MiB

CorrectRender.png

2.0 MiB