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Graphical bugs (artefacts) in Solid Mode and in Material Mode
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System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: AMD Radeon RX 6700 XT ATI Technologies Inc. 4.5.14741 Core Profile Context 21.7.1 27.20.22017.1004

Blender Version
Broken: version: 2.93.1, branch: master, commit date: 2021-06-22 05:57, hash: rB1b8d33b18c2f
Worked: (newest version of Blender that worked as expected)

Short description of error
Hello, I'm experiecing artefacts in Blender with GPU AMD Radeon RX 6700 XT Sapphire Nitro+. I upgraded GPU of my PC from RX 5700 XT to RX 6700 XT (Amd Radeon RX 6700 XT Sapphire Nitro+). And then I installed the last recommended version of driver of GPU properly and opened "Blender 2.93 LTS version". But when I switch to Sculpt Mode and apply Mask Tool on to my sculpt models in Blender, I receive buggy artefacts as a result. (and i see this result even in Edit Mode and when render in material mode) And then, I decided to format my whole Operating System and tried every single versions of all drivers of AMD with all versions of Blender starting from "Blender 2.83" to "Blender 2.93.1" one by one. But the result was the same.
MY Hardware Components: CPU- Ryzen 9 5900x / GPU- AMD RX Radeon 6700 XT Sapphire Nitro+ / MAINBOARD- Asus ROG STRIX B 550-F Gaming Wi-fi / RAM- Crucial Ballistix Sport LT BLS16G4D30AESB 2x16 32 GB 3000 Mhz CL 15/ PSU- Rampage RGB-850 80+ Gold 850W / Storage: 2x Samsung 500GB 970 EVO NVMe M.2 SSD And 1 TB WD Blue Sata SSD

Exact steps for others to reproduce the error

  1. Open Blender
  2. Select the Deafult Cube
  3. Press CTRL 5 (it will transform the cube to a sphere)
  4. Press CTRL A and Select ''Visual Geometry to Mesh'' (it will apply the transformation)
  5. Click on ''Object Mode'' in the upper right corner and select ''Sculpt mode''
  6. Press M (Selecting mask tool)
  7. Hover the mouse over the sphere while holding down the left mouse button. (so that you apply mask tool on to sphere model)
  8. And now you can see the artefacts on the surface of sphere. And also you can see the artefacts are moving dynamically while you navigate around the model. (To navigate around a model, hold down the middle mouse button while you move mouse around)

I have uploaded a video to show the problem for you to watch.

Best Regards,
Taygun Gencosmanoğlu

Event Timeline

Thank you for the report, I'll merge this into one we already have open for this issue.