MacOS, Metal: Banding artefacts in viewport when using curves in color management #106393

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opened 2023-03-31 16:54:32 +02:00 by Martin Ackerl · 2 comments

System Information
Operating system: macOS-13.2.1-x86_64-i386-64bit 64 Bits
Graphics card: Metal API AMD Radeon Pro Vega 64 1.2
Screen: iMac 27 inch Retina 30bit

Blender Version
Broken: version: 3.5.0, branch: blender-v3.5-release, commit date: 2023-03-29 02:56, hash: 1be25cfff18b
Worked: same version with openGL viewport API

Short description of error
In the "wanderer" demo file you get white lines in the bright parts of the scene. They are visible in rendered view as well as in the final render (but only inside blender).
When "Use Curves" in "Color Management" is turned off, they dissapear.
When switching back to openGL api everything looks ok.

Exact steps for others to reproduce the error
Open the demo file wanderer https://download.blender.org/demo/eevee/wanderer/wanderer.blend

**System Information** Operating system: macOS-13.2.1-x86_64-i386-64bit 64 Bits Graphics card: Metal API AMD Radeon Pro Vega 64 1.2 Screen: iMac 27 inch Retina 30bit **Blender Version** Broken: version: 3.5.0, branch: blender-v3.5-release, commit date: 2023-03-29 02:56, hash: `1be25cfff18b` Worked: same version with openGL viewport API **Short description of error** In the "wanderer" demo file you get white lines in the bright parts of the scene. They are visible in rendered view as well as in the final render (but only inside blender). When "Use Curves" in "Color Management" is turned off, they dissapear. When switching back to openGL api everything looks ok. **Exact steps for others to reproduce the error** Open the demo file wanderer https://download.blender.org/demo/eevee/wanderer/wanderer.blend
Martin Ackerl added the
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Normal
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Report
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Needs Triage
labels 2023-03-31 16:54:33 +02:00
Pratik Borhade added the
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macOS
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Metal
labels 2023-04-05 14:02:53 +02:00

Can confirm, though here OpenGL does not work well.

Can confirm, though here OpenGL does not work well.
Richard Antalik added
Module
EEVEE & Viewport
Status
Confirmed
and removed
Status
Needs Triage
labels 2023-04-13 03:58:40 +02:00

Likely a shader precision issue being introduced somewhere, will attempt to reproduce and investigate. Thanks for reporting.

Likely a shader precision issue being introduced somewhere, will attempt to reproduce and investigate. Thanks for reporting.
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Reference: blender/blender#106393
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