Cycles Problems with OpenCL rendering on Rx580 #80173

New Issue

Mohammad Javad - Ehsan (last name) · 2020-08-27T23:21:24+02:00

Mohammad Javad - Ehsan (last name) commented

2020-08-27 23:21:24 +02:00

These are all the problems i encounter when I want to render with my Rx 580 using OpenCL:

In viewport, after writing kernel, render stucks at the first sample while overlays and other panels are still functional. And if you change the rendering mode to material preview, solid, or wireframe, and also if you change the render engine, Blender hangs and you should force stop it.
The second problem with the viewport ( Which is less common than the previous one), is that it renders the scene but it shows an inaccurate AO pass ( by inaccurate I mean It's not exactly looks like AO pass, but it's somehow similar) instead of combined pass.
While Rendering using F12, blender stucks at compiling render kernel. (happens randomly)
While Rendering a heavy scene (with ~3000 static mesh particles) that half of it is sky and the other part is particles, When Tile is on the particles, it only renders 20-30 samples and stops rendering and blender stops responding if you click anywhere.
Sometimes Rendering with OpenCL gives random artifacts, including but not limited to:
a) Unwanted vertical lines
b) odd tiles ( darker or brighter than others, or noisier)
c) pixelated zigzag pattern stretched along x axis which affects gamma of the image
d) unusual Fireflies

All of the problems started to happen after updating to 2.83 LTS and even they started appear in the previous versions!
These are the solutions I tried and none of them worked for me:

I tried Adrenaline software 20.4.2, 20.7.2, 20.8.2 each time with a clean install
I tried reinstalling windows on a new drive as I thought it might be a problem with my old HDD
After reinstalling the Windows, I first installed Blender 2.82.7 and it worked just fine, but right after installing 2.83.5, problems started to appear in both 2.83.5 and 2.82.7!

System and software information:
GPU: XFX Rx580 8GB
OS: Windows 10 1909 & 2004
Blender versions: 2.80.15, 2.81a, 2.82.7, 2.83.(0-5), 2.90

These are all the problems i encounter when I want to render with my Rx 580 using OpenCL: 1) In viewport, after writing kernel, render stucks at the first sample while overlays and other panels are still functional. And if you change the rendering mode to material preview, solid, or wireframe, and also if you change the render engine, Blender hangs and you should force stop it. 2) The second problem with the viewport ( Which is less common than the previous one), is that it renders the scene but it shows an inaccurate AO pass ( by inaccurate I mean It's not exactly looks like AO pass, but it's somehow similar) instead of combined pass. 3) While Rendering using F12, blender stucks at compiling render kernel. (happens randomly) 4) While Rendering a heavy scene (with ~3000 static mesh particles) that half of it is sky and the other part is particles, When Tile is on the particles, it only renders 20-30 samples and stops rendering and blender stops responding if you click anywhere. 5) Sometimes Rendering with OpenCL gives random artifacts, including but not limited to: a) Unwanted vertical lines b) odd tiles ( darker or brighter than others, or noisier) c) pixelated zigzag pattern stretched along x axis which affects gamma of the image d) unusual Fireflies All of the problems started to happen after updating to 2.83 LTS and even they started appear in the previous versions! These are the solutions I tried and none of them worked for me: 1) I tried Adrenaline software 20.4.2, 20.7.2, 20.8.2 each time with a clean install 2) I tried reinstalling windows on a new drive as I thought it might be a problem with my old HDD After reinstalling the Windows, I first installed Blender 2.82.7 and it worked just fine, but right after installing 2.83.5, problems started to appear in both 2.83.5 and 2.82.7! System and software information: GPU: XFX Rx580 8GB OS: Windows 10 1909 & 2004 Blender versions: 2.80.15, 2.81a, 2.82.7, 2.83.(0-5), 2.90

Mohammad Javad - Ehsan (last name) commented

2020-08-27 23:21:24 +02:00

Added subscriber: @MJ.Ehsan

Richard Antalik commented

2020-08-28 06:39:25 +02:00

Added subscriber: @iss

Richard Antalik commented

2020-08-28 06:39:25 +02:00

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

Richard Antalik commented

2020-08-28 06:39:25 +02:00

Can not reproduce 1, 3, 5
4, 2 would require example file.
5 was issue with older drivers (20.4.2) if I recall correctly, but now I can not reproduce that issue with Radeon RX550/550 Series ATI Technologies Inc. 4.5.14736 Core Profile Context 20.7.2 27.20.2001.9003.

I would suggest reporting each issue individually, but I would assume all issues are result of misbehaving driver.
Installing blender 2.83 should definitely not affect 2.82 instance.

Can you upload simplest possible sample file for issue 4 and 2?

Can not reproduce 1, 3, 5 4, 2 would require example file. 5 was issue with older drivers (20.4.2) if I recall correctly, but now I can not reproduce that issue with Radeon RX550/550 Series ATI Technologies Inc. 4.5.14736 Core Profile Context 20.7.2 27.20.2001.9003. I would suggest reporting each issue individually, but I would assume all issues are result of misbehaving driver. Installing blender 2.83 should definitely not affect 2.82 instance. Can you upload simplest possible sample file for issue 4 and 2?

Mohammad Javad - Ehsan (last name) commented

2020-08-29 22:58:34 +02:00

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

Mohammad Javad - Ehsan (last name) commented

2020-08-29 22:58:34 +02:00

This is the "vertical lines artifact"

car-AOishBug.blend

This is what i called Inaccurate AO pass
An example for problem 4 is naturally heavy but I will upload it anyway
Archaic correspondence - RenderStops.blend This is that heavy scene ( not that much heavy to fully utilize VRAM )
About problem 5, I tried all of the drivers I mentioned above ( 20.4.2 - 20.7.2 - 20.8.2 ) and none of them worked for me. and then today I tried Radeon pro driver ( Driver Version
20.10.27.02-200708a-357781C-RadeonProEnterprise ). problem number 1, 3 and 5 solved. except odd tiles and unusual fireflies.

Yes, installing a newer version should not affect any other version. But it shockingly does! it affects all 2.80 installable versions.

![Unwanted Vertical Lines.jpg](https://archive.blender.org/developer/F8819465/Unwanted_Vertical_Lines.jpg) This is the "vertical lines artifact" [car-AOishBug.blend](https://archive.blender.org/developer/F8819475/car-AOishBug.blend) ![Screenshot (7).png](https://archive.blender.org/developer/F8819657/Screenshot__7_.png) This is what i called Inaccurate AO pass An example for problem 4 is naturally heavy but I will upload it anyway [Archaic correspondence - RenderStops.blend](https://archive.blender.org/developer/F8819468/Archaic_correspondence_-_RenderStops.blend) This is that heavy scene ( not that much heavy to fully utilize VRAM ) About problem 5, I tried all of the drivers I mentioned above ( 20.4.2 - 20.7.2 - 20.8.2 ) and none of them worked for me. and then today I tried Radeon pro driver ( Driver Version 20.10.27.02-200708a-357781C-RadeonProEnterprise ). **problem number 1, 3 and 5 solved. except odd tiles and unusual fireflies.** Yes, installing a newer version should not affect any other version. But it shockingly does! it affects all 2.80 installable versions.

Richard Antalik commented

2020-08-31 13:06:41 +02:00

I tried rendering car-AOishBug.blend but it froze my PC. Though I am not using latest drivers right now, so I will update those first and look at provided files.

I tried rendering `car-AOishBug.blend` but it froze my PC. Though I am not using latest drivers right now, so I will update those first and look at provided files.

Richard Antalik commented

2020-09-01 20:07:11 +02:00

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

Richard Antalik commented

2020-09-01 20:07:11 +02:00

I was able to render car-AOishBug.blend after updating driver, Though I am not sure if I understand problem correctly. I can't see any AO nodes or AO enabled in world settings. AO pass is also completely black. Is the problem the difference in how window material is rendered?

CPU:

GPU:

I was able to render `car-AOishBug.blend` after updating driver, Though I am not sure if I understand problem correctly. I can't see any AO nodes or AO enabled in world settings. AO pass is also completely black. Is the problem the difference in how window material is rendered? CPU: ![Untitled2.png](https://archive.blender.org/developer/F8830506/Untitled2.png) GPU: ![Untitled.png](https://archive.blender.org/developer/F8830507/Untitled.png)

Mohammad Javad - Ehsan (last name) commented

2020-09-03 23:00:29 +02:00

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

Mohammad Javad - Ehsan (last name) commented

2020-09-03 23:00:29 +02:00

The problem is that the combined pass seems like AO. but it's not exactly AO. it's different.
Also I think you didn't set the render device to OpenCL as the Device in render settings is greyed out. So it is actually rendered by CPU.

The problem is that the combined pass seems like AO. but it's not exactly AO. it's different. Also I think you didn't set the render device to OpenCL as the Device in render settings is greyed out. So it is actually rendered by CPU.

Richard Antalik commented

2020-09-07 05:55:30 +02:00

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

Richard Antalik commented

2020-09-07 05:55:30 +02:00

In #80173#1008756, @MJ.Ehsan wrote:
The problem is that the combined pass seems like AO. but it's not exactly AO. it's different.

This looks like a bug. Can you simplify the file so you remove all elements that does not cause the bug?

Also I think you didn't set the render device to OpenCL as the Device in render settings is greyed out. So it is actually rendered by CPU.

Yes, top image is CPU, bottom is GPU, which looks like your image.

> In #80173#1008756, @MJ.Ehsan wrote: > The problem is that the combined pass seems like AO. but it's not exactly AO. it's different. This looks like a bug. Can you simplify the file so you remove all elements that does not cause the bug? > Also I think you didn't set the render device to OpenCL as the Device in render settings is greyed out. So it is actually rendered by CPU. Yes, top image is CPU, bottom is GPU, which looks like your image.

Richard Antalik commented

2020-10-15 20:29:04 +02:00

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

Richard Antalik closed this issue

2020-10-15 20:29:04 +02:00

Richard Antalik self-assigned this 2020-10-15 20:29:04 +02:00

Richard Antalik commented

2020-10-15 20:29:04 +02:00

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed.

Thanks again for the report. If the problem persists please open a new report with the required information.

No activity for more than a week. As per the tracker policy we assume the issue is gone and can be closed. Thanks again for the report. If the problem persists please open a new report with the required information.

Thomas Dinges added this to the 2.83 LTS milestone 2023-02-08 16:35:26 +01:00

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Cycles Problems with OpenCL rendering on Rx580 #80173