Solid Viewport Transparency Artifacts/Dots #100030

New Issue

Zachary Berkowitz · 2022-07-27T19:00:55+02:00

Zachary Berkowitz commented

2022-07-27 19:00:55 +02:00

System Information
Operating system: Windows 10 Home Build 19044
Graphics card: iGPU on Intel Core i7 1185G7 (Iris Xe Graphics)

Blender Version
Broken: 3.1.2

Short description of error
I downloaded a 3D model from TurboSquid of an Aston Martin Vantage (the model is free, find it here ) and the viewport has strange dots at object edges when looked at through the partially transparent glass. I tracked the issue down to the alpha of the Glass material in Properties > Material Properties > Viewport Display, the dots only appear when the alpha value is not 0.0 or 1.0.

Exact steps for others to reproduce the error

Open TransparencyBug.blend or astonAston MArtinV12 Vantage S 2016 .blend (files at the bottom)
Set Viewport Shading to Solid
Set transparency of Transparent or Glass material (Properties>Material Properties>Viewport Display, select Transparent or Glass material) to some decimal value other than 0.0 and 1.0
Dots appear at edges of materials looked at through transparent objects

Images

astonAston MArtinV12 Vantage S 2016 .blend:
Alpha 1.0:
Alpha 0.201:
Alpha 0.0:

TransparencyBug.blend:
Alpha 1.0:
Alpha 0.5:
Alpha 0.0:

Affected Files
TransparencyBug.blend
astonAston MArtinV12 Vantage S 2016 .blend

**System Information** Operating system: Windows 10 Home Build 19044 Graphics card: iGPU on Intel Core i7 1185G7 (Iris Xe Graphics) **Blender Version** Broken: 3.1.2 **Short description of error** I downloaded a 3D model from TurboSquid of an Aston Martin Vantage (the model is free, [find it here ](https://www.turbosquid.com/3d-models/3d-aston-martin-s-1685480)) and the viewport has strange dots at object edges when looked at through the partially transparent glass. I tracked the issue down to the alpha of the Glass material in `Properties > Material Properties > Viewport Display`, the dots only appear when the alpha value is not 0.0 or 1.0. **Exact steps for others to reproduce the error** - Open `TransparencyBug.blend` or `astonAston MArtinV12 Vantage S 2016 .blend` (files at the bottom) - Set Viewport Shading to Solid - Set transparency of Transparent or Glass material (Properties>Material Properties>Viewport Display, select Transparent or Glass material) to some decimal value other than 0.0 and 1.0 - Dots appear at edges of materials looked at through transparent objects **Images** astonAston MArtinV12 Vantage S 2016 .blend: Alpha 1.0: ![Screenshot (11).png](https://archive.blender.org/developer/F13322696/Screenshot__11_.png) Alpha 0.201: ![Screenshot (9).png](https://archive.blender.org/developer/F13322689/Screenshot__9_.png) Alpha 0.0: ![Screenshot (10).png](https://archive.blender.org/developer/F13322695/Screenshot__10_.png) TransparencyBug.blend: Alpha 1.0:![Screenshot (14).png](https://archive.blender.org/developer/F13322719/Screenshot__14_.png) Alpha 0.5: ![Screenshot (13).png](https://archive.blender.org/developer/F13322721/Screenshot__13_.png) Alpha 0.0: ![Screenshot (12).png](https://archive.blender.org/developer/F13322723/Screenshot__12_.png) **Affected Files** [TransparencyBug.blend](https://archive.blender.org/developer/F13322714/TransparencyBug.blend) [astonAston MArtinV12 Vantage S 2016 .blend](https://archive.blender.org/developer/F13322616/astonAston_MArtinV12_Vantage_S_2016_.blend)

Zachary Berkowitz commented

2022-07-27 19:00:55 +02:00

Added subscriber: @DJ_Level_3

Germano Cavalcante commented

2022-07-27 20:54:42 +02:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2022-07-27 20:54:42 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Germano Cavalcante commented

2022-07-27 20:54:42 +02:00

This looks like the same problem described in #83022 (Transparency in Solid View Causes Glitch Artifacts).
But this one must be another one because the GPU is not from AMD.

Please double-check if the drivers are up to date and the hardware meets Blender's requirements: https://www.blender.org/download/requirements

To upgrade to the latest driver, see here for more information: https://docs.blender.org/manual/en/dev/troubleshooting/gpu/index.html

This looks like the same problem described in #83022 (Transparency in Solid View Causes Glitch Artifacts). But this one must be another one because the GPU is not from AMD. Please double-check if the drivers are up to date and the hardware meets Blender's requirements: https://www.blender.org/download/requirements To upgrade to the latest driver, see here for more information: https://docs.blender.org/manual/en/dev/troubleshooting/gpu/index.html

Zachary Berkowitz commented

2022-07-27 20:57:39 +02:00

I'm on the latest drivers and I meet all the specs except for the screen resolution. The problem appears to be an entirely different problem, as the glitch on the other issue affects the whole object, but this one only occurs on edges.

Zachary Berkowitz commented

2022-07-27 20:59:02 +02:00

Also, this one doesn't have anything turn black or cause any other issues, just the dots. Can this be reproduced on GPUs other than Intel or is it exclusive to Intel?

Germano Cavalcante commented

2022-07-27 21:13:27 +02:00

Changed status from 'Needs User Info' to: 'Needs Triage'

Germano Cavalcante commented

2022-07-27 21:13:27 +02:00

Can you provide the system-info.txt generated in {nav Help > Save System Info}.
So we will have a more complete information about the GPU.

Can you provide the `system-info.txt` generated in {nav Help > Save System Info}. So we will have a more complete information about the GPU.

Pratik Borhade commented

2022-07-28 01:38:17 +02:00

Added subscriber: @PratikPB2123

Pratik Borhade commented

2022-07-28 01:38:17 +02:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Pratik Borhade commented

2022-07-28 01:38:17 +02:00

In #100030#1396382, @mano-wii wrote:
Can you provide the system-info.txt generated in {nav Help > Save System Info}.
So we will have a more complete information about the GPU.

> In #100030#1396382, @mano-wii wrote: > Can you provide the `system-info.txt` generated in {nav Help > Save System Info}. > So we will have a more complete information about the GPU.

Zachary Berkowitz commented

2022-07-28 01:58:31 +02:00

system-info.txt
Here's system-info.txt

[system-info.txt](https://archive.blender.org/developer/F13323194/system-info.txt) Here's system-info.txt

Pratik Borhade commented

2022-07-28 02:13:48 +02:00

Thanks for the file. I'm not able to replicate in your uploaded file. Will check again today with iGPU
Does this happen after you load factory settings?: {nav File > Defaults > Load Factory Settings}

Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 512.78```

Thanks for the file. I'm not able to replicate in your uploaded file. Will check again today with iGPU Does this happen after you load factory settings?: {nav File > Defaults > Load Factory Settings} - - - ```**System Information** Operating system: Windows-10-10.0.22000-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 512.78```

Germano Cavalcante commented

2022-07-28 15:44:15 +02:00

I'm not sure if I'm looking in the right place, but looking at the intel website, apparently there are newer versions of the driver:
https://www.intel.com/content/www/us/en/download/19344/intel-graphics-windows-dch-drivers.html?wapkw=1185G7

On the website we see 31.0.101.3222/31.0.101.2111 while in system-info.txt it says that the driver version is 30.0.101.1340.

I'm not sure if I'm looking in the right place, but looking at the intel website, apparently there are newer versions of the driver: https://www.intel.com/content/www/us/en/download/19344/intel-graphics-windows-dch-drivers.html?wapkw=1185G7 On the website we see `31.0.101.3222/31.0.101.2111` while in system-info.txt it says that the driver version is `30.0.101.1340`.

Zachary Berkowitz commented

2022-07-28 20:17:32 +02:00

I'll try the driver update now and update when it's installed

Zachary Berkowitz commented

2022-07-28 20:38:46 +02:00

Issue persists on 31.0.101.3222.

Issue persists on 31.0.101.3222.![Screenshot (15).png](https://archive.blender.org/developer/F13324405/Screenshot__15_.png)

Zachary Berkowitz commented

2022-07-28 20:40:36 +02:00

I'll try factory settings in a moment as well, forgot to do that before

Zachary Berkowitz commented

2022-07-28 20:43:12 +02:00

Issue persists on factory settings.

Issue persists on factory settings.![Screenshot (16).png](https://archive.blender.org/developer/F13324409/Screenshot__16_.png)

Zachary Berkowitz commented

2022-07-28 20:54:53 +02:00

As this appears to be exclusive to Intel graphics so far, potentially just Iris Xe graphics, I think it would be a good idea to report it to Intel. However, I can't figure out where I'm supposed to report it, if anyone knows that'd be helpful.

Germano Cavalcante commented

2022-07-28 21:22:20 +02:00

Strange that, although it is common for Intel Iris Xe graphics users to report problems on this channel, this is the first case of this issue with this GPU.

Although this is a driver issue, developers can provide "workarounds" in the code to work around these issues. They only need to have access to similar hardware first.

I tagged the #eevee_viewport team anyway.

Strange that, although it is common for `Intel Iris Xe graphics` users to report problems on this channel, this is the first case of this issue with this GPU. Although this is a driver issue, developers can provide "workarounds" in the code to work around these issues. They only need to have access to similar hardware first. I tagged the #eevee_viewport team anyway.

Zachary Berkowitz commented

2022-07-28 21:25:23 +02:00

It appears to be a problem in Workbench, in Rendered view it doesn't appear in Cycles or Eevee. Only Workbench. I fixed some settings, here's an updated scene that renders correctly in Eevee but not in Workbench.TransparencyBug.blend

It appears to be a problem in Workbench, in Rendered view it doesn't appear in Cycles or Eevee. Only Workbench. I fixed some settings, here's an updated scene that renders correctly in Eevee but not in Workbench.[TransparencyBug.blend](https://archive.blender.org/developer/F13324455/TransparencyBug.blend)

Pratik Borhade commented

2022-07-29 05:03:23 +02:00

Can not reproduce either with integrated GPU (checked in 3.3 and 3.1.2)

Operating system: Windows-10-10.0.19043-SP0 64 Bits
Graphics card: Intel(R) UHD Graphics 620 Intel 4.5.0 - Build 30.0.101.1994```

Can not reproduce either with integrated GPU (checked in 3.3 and 3.1.2) ```**System Information** Operating system: Windows-10-10.0.19043-SP0 64 Bits Graphics card: Intel(R) UHD Graphics 620 Intel 4.5.0 - Build 30.0.101.1994```

Pratik Borhade commented

2022-07-29 05:05:54 +02:00

Changed status from 'Needs User Info' to: 'Needs Developer To Reproduce'

Pratik Borhade commented

2022-07-29 05:05:54 +02:00

@mano-wii: Although this is a driver issue, developers can provide "workarounds" in the code to work around these issues. They only need to have access to similar hardware first. I tagged the EEVEE & Viewport team anyway.

>@mano-wii: Although this is a driver issue, developers can provide "workarounds" in the code to work around these issues. They only need to have access to similar hardware first. I tagged the EEVEE & Viewport team anyway.

Philipp Oeser removed the

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Solid Viewport Transparency Artifacts/Dots #100030