Line weight in artistic display suddenly gets too wide

Continuing to have trouble with Artistic Display in latest WIP.
Small change in zoom level suddenly makes the line weight get very wide.
This happens both with scroll wheel on mouse and with 3D Connection 3D mouse

Here’s my system info:

Rhino 6 SR0 2017-12-12 (Rhino WIP, 6.0.17346.6021, Git hash:master @ 6375b6bd985bc358d0263f39bdacc5ab71477c4c)

Windows 10.0 SR0.0 or greater (Physical RAM: 16Gb)

Quadro M4000/PCIe/SSE2 (OpenGL ver:4.6.0 NVIDIA 388.16)

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: Height

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 10-30-2017
Driver Version: 23.21.13.8816
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 8 GB

C:\Program Files\Rhino WIP\Plug-ins\Commands.rhp “Commands”
C:\Program Files\Rhino WIP\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino WIP\Plug-ins\AnimationTools.rhp “AnimationTools”
C:\Program Files\Rhino WIP\Plug-ins\RhinoRender.rhp “Rhino Render”
C:\Program Files\Rhino WIP\Plug-ins\rdk_etoui.rhp “RDK_EtoUI”
C:\Program Files\Rhino WIP\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Program Files\Rhino WIP\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino WIP\Plug-ins\RhinoCycles.rhp “RhinoCycles”
C:\Program Files\Rhino WIP\Plug-ins\Toolbars\Toolbars.rhp “Toolbars”
C:\Program Files\Rhino WIP\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino WIP\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino WIP\Plug-ins\Calc.rhp “Calc”

Hi Abraham - can you please send us that file with the views active as you show? (tech@mcneel.com, or www.Rhino3d.com/upload)

thanks,

-Pascal

Uploaded file to www.Rhino3d.com/upload

In the process of cleaning up before upload I think I found the problem. It’s the bitmap image on the layer called “brush stroke picture”

Turning this layer off clears up the display problem on my machine.

Thanks for the file, I couldn’t find a work around for you other then turning off the visibility of that layer as you mentioned.

I filed it as https://mcneel.myjetbrains.com/youtrack/issue/RH-43187 but kept the report confidential.