[OpenGL Driver Bug] X-ray causes viewport artifacts in Edit Mode when using Solid rendering #69972

New Issue

Oscar Brynolf · 2019-09-17T09:09:15+02:00

Oscar Brynolf commented

2019-09-17 09:09:15 +02:00

System Information
Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: Radeon RX Vega ATI Technologies Inc. 4.5.13571 Core Profile Context 19.9.2 26.20.13003.1007

Blender Version
Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: f6cb5f5449
Broken: version: 2.81 (sub 11), branch: master, commit date: 2019-09-16 21:02, hash: 76650402f3

Short description of error
Objects in Edit Mode show white rendering artifacts in viewport when x-ray is turned on (See picture).

Exact steps for others to reproduce the error

Open Blender
Have new scene with cube
Turn on X-ray
Select cube
Switch to Edit Mode

Artifacts are visible.

Screenshot

Camera sligthly rotated after steps above.

Screencapture
Blender 2.8 xray render artifacts bug (video).mp4

Turning X-ray amount to 0.0 or 1.0 removes the artifacts.
Artifacts seem to change sligthly with Multisample settings
Using Workbench renderer does NOT create the artifacts.

Debug files
system-info.txt
blender_--debug-gpu.txt
AMD Readeon System Info.txt

Similar bugs, but not same
#67615 (Viewport Display: In front. Glitches (just in 3dViewport background). AMD.)

**System Information** Operating system: Windows-10-10.0.18362 64 Bits Graphics card: Radeon RX Vega ATI Technologies Inc. 4.5.13571 Core Profile Context 19.9.2 26.20.13003.1007 **Blender Version** Broken: version: 2.80 (sub 75), branch: master, commit date: 2019-07-29 14:47, hash: `f6cb5f5449` Broken: version: 2.81 (sub 11), branch: master, commit date: 2019-09-16 21:02, hash: `76650402f3` **Short description of error** Objects in Edit Mode show white rendering artifacts in viewport when x-ray is turned on (See picture). **Exact steps for others to reproduce the error** - Open Blender - Have new scene with cube - Turn on X-ray - Select cube - Switch to Edit Mode Artifacts are visible. **Screenshot** ![Blender 2.8 xray render artifacts bug sample.png](https://archive.blender.org/developer/F7752462/Blender_2.8_xray_render_artifacts_bug_sample.png) Camera sligthly rotated after steps above. **Screencapture** [Blender 2.8 xray render artifacts bug (video).mp4](https://archive.blender.org/developer/F7752469/Blender_2.8_xray_render_artifacts_bug__video_.mp4) - Turning X-ray amount to 0.0 or 1.0 removes the artifacts. - Artifacts seem to change sligthly with Multisample settings - Using Workbench renderer does NOT create the artifacts. **Debug files** [system-info.txt](https://archive.blender.org/developer/F7752475/system-info.txt) [blender_--debug-gpu.txt](https://archive.blender.org/developer/F7752484/blender_--debug-gpu.txt) [AMD Readeon System Info.txt](https://archive.blender.org/developer/F7752502/AMD_Readeon_System_Info.txt) **Similar bugs, but not same** #67615 (Viewport Display: In front. Glitches (just in 3dViewport background). AMD.)

Oscar Brynolf commented

2019-09-17 09:09:15 +02:00

Added subscriber: @kraybit

Jeroen Bakker commented

2019-09-17 12:20:13 +02:00

Added subscriber: @Jeroen-Bakker

Jeroen Bakker self-assigned this 2019-09-17 12:20:13 +02:00

Jeroen Bakker commented

2019-09-17 12:20:13 +02:00

Unable to reproduce on Linux (AMD Pro Driver) and Windows 10 with AMD Vega (Adrenalin 19.7.2).
Being able to reproduce it on Windows 10 With AMD Vega (Adrenalin 19.9.2)

Seems like a driver bug. I will have a look if this issue can be bypassed. But as a work around you can for now install the previous version of the AMD driver.

I checked with RenderDoc. I cannot detect any differences when the issue occurs.

Unable to reproduce on Linux (AMD Pro Driver) and Windows 10 with AMD Vega (Adrenalin 19.7.2). Being able to reproduce it on Windows 10 With AMD Vega (Adrenalin 19.9.2) Seems like a driver bug. I will have a look if this issue can be bypassed. But as a work around you can for now install the previous version of the AMD driver. I checked with RenderDoc. I cannot detect any differences when the issue occurs.

Jeroen Bakker commented

2019-09-18 12:28:14 +02:00

I have detected an issue with the AMD 19.2.2 driver. What I have detected is that textures aren't cleared correctly. For the workbench they are the transparency_revealage_tx and oit_revealage_tx. Both are attached as a second color texture to the framebuffer. It seems like glClear is ignoring the selected glDrawBuffers buffers.

Using the --debug-gpu-force-workarounds does not fix this issue; this includes the a workaround for glDrawBuffers, making all buffer sequential without any gaps in between.

I have detected an issue with the AMD 19.2.2 driver. What I have detected is that textures aren't cleared correctly. For the workbench they are the `transparency_revealage_tx` and `oit_revealage_tx`. Both are attached as a second color texture to the framebuffer. It seems like `glClear` is ignoring the selected `glDrawBuffers` buffers. Using the `--debug-gpu-force-workarounds` does not fix this issue; this includes the a workaround for glDrawBuffers, making all buffer sequential without any gaps in between.

Jeroen Bakker commented

2019-09-24 12:39:36 +02:00

A new driver is released, but still have the same issue. The OpenGL backend was not updated.

system-info.txt

A new driver is released, but still have the same issue. The OpenGL backend was not updated. [system-info.txt](https://archive.blender.org/developer/F7773228/system-info.txt)

Jeroen Bakker changed title from ~~X-ray causes viewport artifacts in Edit Mode when using Solid rendering~~ to [OpenGL Driver Bug] X-ray causes viewport artifacts in Edit Mode when using Solid rendering

2019-10-01 08:42:18 +02:00

Dmitrii Komoltcev commented

2019-10-06 13:19:10 +02:00

Added subscriber: @Shaedar

Jeroen Bakker commented

2019-10-29 08:50:45 +01:00

I received information that the AMD consumer driver of last week solved this issue. The Pro drivers will have the same fix in the next version that will be released in a couple of weeks.
I will update this report when I have the exact version numbers.

I received information that the AMD consumer driver of last week solved this issue. The Pro drivers will have the same fix in the next version that will be released in a couple of weeks. I will update this report when I have the exact version numbers.

Jeroen Bakker commented

2019-11-07 08:55:13 +01:00

Changed status from 'Open' to: 'Resolved'

Jeroen Bakker closed this issue

2019-11-07 08:55:13 +01:00

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[OpenGL Driver Bug] X-ray causes viewport artifacts in Edit Mode when using Solid rendering #69972