Flickering checkerboard in 3D Viewport in right eye (in stereoscopic mode) #83873

New Issue

Jeff Boller · 2020-12-17T01:36:19+01:00

Jeff Boller commented

2020-12-17 01:36:19 +01:00

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: 0f45cab862
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

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

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.blend

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: Quadro [P1000](https://archive.blender.org/developer/P1000.txt)/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: `0f45cab862` 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 2. 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.blend](https://archive.blender.org/developer/F9514092/3d_bug.blend)

Jeff Boller commented

2020-12-17 01:36:19 +01:00

Added subscriber: @sundriftproductions

Alaska commented

2020-12-17 07:23:12 +01:00

Closed as duplicate of #76874

Alaska closed this issue

2020-12-17 07:23:12 +01:00

Alaska commented

2020-12-17 07:26:59 +01:00

Added subscriber: @Alaska

Alaska commented

2020-12-17 07:26:59 +01:00

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

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

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.

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

Flickering checkerboard in 3D Viewport in right eye (in stereoscopic mode) #83873