Maniphest T83873

Flickering checkerboard in 3D Viewport in right eye (in stereoscopic mode)
Closed, Duplicate
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Assigned To
None
Authored By
Jeff Boller (sundriftproductions)
Dec 17 2020, 1:36 AM
Tags
  • BF Blender
Subscribers
Alaska (Alaska)
Jeff Boller (sundriftproductions)

Description

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: Quadro P1000/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 452.56

Blender Version
Broken: version: 2.91.0, branch: master, commit date: 2020-11-25 08:34, hash: rB0f45cab862b8
Worked: (newest version of Blender that worked as expected)

Short description of error
When I load a file with the Stereoscopy option enabled, there is a flashing checkerboard in the background (ONLY in the right eye view) in the 3D Viewport as I move around the scene. It does not matter if I'm in red/cyan anaglyph mode or in top/bottom mode. (The issue may appear in the other 3D modes, but I didn't check.)

There are a couple workarounds to make this checkerboard go away. One is to select the scene's Camera object and move around the scene briefly in the 3D Viewport. It does not matter if the 3D Viewport’s N panel -> View -> View Lock option is checked or not; as long as I select the Camera object and move in the 3D Viewport, the problem goes away until I start Blender again. The other way I've gotten this issue to go away is to set the Viewport Shading to either Material or Rendered, then back to Solid. (Setting the Viewport Shading to Wireframe does not fix the issue.)

Exact steps for others to reproduce the error

  1. Open or create an EEVEE project with the following properties (or use my attached Blender file):
  • A camera object and an object
  • 3D Viewport with Viewport Shading set to Solid
  • Output Properties tab -> Stereoscopy checkbox checked
  • Output Properties tab -> Stereoscopy -> Stereo 3D checked
  • Window -> Set Stereo 3D -> Display Mode: Anaglyph, Anaglyph Type: Red-Cyan
  • 3D Viewport -> N Panel -> View tab -> View Lock -> Camera to View checked
  1. Have the Camera Perspective selected and move around the 3D Viewport. I use a 3D mouse (a 3DConnexion SpaceMouse) and can see the flashing checkerboard the whole time while moving (that is what is on my screen capture video). If you use the X/Y/Z spinner in the upper right hand corner or use View -> Navigation -> Walk Navigator, you will only see the checkerboard once you stop moving.

See the following screen capture: https://youtu.be/tmpGW7xsgBU

3d bug.blend1 MBDownload

Related Objects

Event Timeline

Jeff Boller (sundriftproductions) created this task.Dec 17 2020, 1:36 AM
Alaska (Alaska) closed this task as a duplicate of T76874: Enabling "Steroscopy" in the viewport camera causes graphical glitches with anti-aliasing enabled..Dec 17 2020, 7:23 AM
Alaska (Alaska) added a subscriber: Alaska (Alaska).Dec 17 2020, 7:26 AM

The issue seems to be a driver issue and dates back quite a while. There are a few options to fix this:

  1. You roll back to an older driver that doesn't have this issue. (Not recommended as the working driver is quite old)
  2. Wait until Nvidia releases a driver that fixes this issue.
  3. The Blender team changes something about the 3D anaglyph rendering is changed (This will most likely come with the Vulkan patch)
  4. You continue to do your work around (enter material then solid view) until one of these fixes comes out.