Fancy curves coarse display

The fancy curves look as if there is no AA at all at their border:
image

CrvNoAA.3dm (810.4 KB)

Sysinfo

Rhino 8 SR4 2024-1-9 (Rhino 8, 8.4.24009.13521, Git hash:master @ 92a8f2048b418ceab8c8de06a88b7939594e09f2)
License type: Evaluation, Build 2024-01-09
License details: Cloud Zoo
Expires on: 2024-02-07

Windows 11 (10.0.22631 SR0.0) or greater (Physical RAM: 32GB)
.NET 7.0.15

Computer platform: DESKTOP

Standard graphics configuration.
Primary display and OpenGL: NVIDIA GeForce RTX 2070 (NVidia) Memory: 8GB, Driver date: 11-29-2023 (M-D-Y). OpenGL Ver: 4.6.0 NVIDIA 546.29
> Accelerated graphics device with 4 adapter port(s)
- Windows Main Display attached to adapter port 0

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On
Graphics level being used: OpenGL 4.6 (primary GPU’s maximum)

Anti-alias mode: 8x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: NVIDIA Corporation
Render version: 4.6
Shading Language: 4.60 NVIDIA
Driver Date: 11-29-2023
Driver Version: 31.0.15.4629
Maximum Texture size: 32768 x 32768
Z-Buffer depth: 24 bits
Maximum Viewport size: 32768 x 32768
Total Video Memory: 8 GB

Rhino plugins that do not ship with Rhino
C:\Program Files\SimLab\Plugins\SimLab 3D PDF From Rhino 6\plugins\SimLabPDFExporter.rhp “SimLab PDF Exporter”
C:\Program Files\Common Files\McNeel\Rhinoceros\7.0\Plug-ins\XNurbs (80be33b0-13b2-4ac4-9c77-03829214f9e9)\6.0.0.0\XNurbsRhino7.rhp “XNurbs”

Rhino plugins that ship with Rhino
C:\Program Files\Rhino 8\Plug-ins\Commands.rhp “Commands” 8.4.24009.13521
C:\Program Files\Rhino 8\Plug-ins\WebBrowser.rhp “WebBrowser”
C:\Program Files\Rhino 8\Plug-ins\rdk.rhp “Renderer Development Kit”
C:\Program Files\Rhino 8\Plug-ins\RhinoRenderCycles.rhp “Rhino Render” 8.4.24009.13521
C:\Program Files\Rhino 8\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 8.4.24009.13521
C:\Program Files\Rhino 8\Plug-ins\NamedSnapshots.rhp “Snapshots”
C:\Program Files\Rhino 8\Plug-ins\MeshCommands.rhp “MeshCommands” 8.4.24009.13521
C:\Program Files\Rhino 8\Plug-ins\RhinoCycles.rhp “RhinoCycles” 8.4.24009.13521
C:\Program Files\Rhino 8\Plug-ins\RhinoCode\RhinoCodePlugin.rhp “RhinoCodePlugin” 8.4.24009.13521
C:\Program Files\Rhino 8\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 8.4.24009.13521
C:\Program Files\Rhino 8\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
C:\Program Files\Rhino 8\Plug-ins\Displacement.rhp “Displacement”
C:\Program Files\Rhino 8\Plug-ins\SectionTools.rhp “SectionTools”

Have you tried to change the following values from Rhino options > Advanced?

Rhino.Options.OpenGL.SkylightShadowResolutionScaleDynamic (change it from 2 to 1 to make the shadows in supported display modes appear much less pixelated and noisy)

Rhino.Options.OpenGL.WireThicknessScale (change it from 1 to 1.5 to make the curves and surface wires thicker and smoother; it could bring a visual bug with ! _Leader and ! _FilletSrf in Rhino 8; Rhino 7 works flawlessly)

Both settings do not affect the display of the curve outline, the shade mode doesn’t matter.
Technical:
image

thanks Charles,
RH-79803 Missing AA on tips of curves