Surface Blinks on Isometric views (6.6.18156.11421)

The video says it all.

Windows 10
Rhino Version 6 SR6
(6.6.18156.11421, 6/5/2018)

Can you please post the results of the Rhino command _SystemInfo?

Here it is …

Rhino 6 SR6 2018-6-12 (Rhino 6, 6.6.18163.7531, Git hash:master @ 62a301a73290b764ab0e5b96ab22815121c03ffc)
Licence type: Undefined, build 2018-06-12
License details: Stand-Alone

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

GeForce GTX 960M/PCIe/SSE2 (OpenGL ver:4.6.0 NVIDIA 391.35)

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: 3-23-2018
Driver Version:
Maximum Texture size: 16384 x 16384
Z-Buffer depth: 24 bits
Maximum Viewport size: 16384 x 16384
Total Video Memory: 4 GB

D:\Program Files\Rhino 6\Plug-ins\Commands.rhp “Commands” 6.6.18163.7531
D:\Program Files\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”
D:\Program Files\Rhino 6\Plug-ins\RhinoLabsTools.rhp “Rhino Labs Tools”
D:\Program Files\Rhino 6\Plug-ins\RhinoRender.rhp “Rhino Render”
D:\Program Files\Rhino 6\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 6.6.18163.7531
D:\Program Files\Rhino 6\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”
C:\Users\Hani\AppData\Roaming\McNeel\Rhinoceros\6.0\Plug-ins\PanelingTools (6caed836-bc06-4ebc-b1fd-e10886a0dc94)\2018.2.1.981\PanelingTools.rhp “PanelingTools”
D:\Program Files\Rhino 6\Plug-ins\NamedSnapshots.rhp “Snapshots”
D:\Program Files\Rhino 6\Plug-ins\RhinoCycles.rhp “RhinoCycles” 6.6.18163.7531
D:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 6.6.18163.7531
D:\Program Files\Rhino 6\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”
D:\Program Files\Rhino 6\Plug-ins\Displacement.rhp “Displacement”
C:\Users\Hani\AppData\Roaming\McNeel\Rhinoceros\6.0\Plug-ins\SectionTools (fbdb1d7f-8cfb-42c1-9858-87cb6315932c)\2018.1.9.1166\SectionTools.rhp “SectionTools”
D:\Program Files\Rhino 6\Plug-ins\NamedPositions.rhp “Named Position”

@stevebaer, @jeff, @DavidEranen - anything you guys know about?

just to let you know, I’ve updated to ( 6.6.18163.7531, 6/12/2018 ) and the issue still there, and as you can see in the Sysinfo the version is higher than the one in the video, but both have the same issue.
Anyway I will update my GPU driver and let you know.

Yep, I see that here as well, if you have a backface color set, it “shows through” in parallel projection views at certain angles. Even in bog standard ortho views… don’t recall having seen that previously - I think I would have noticed by now. Also (6.6.18163.7531, 12-06-18)

Sigh… this is most likely a result (bug) of the per-vertex lighting shader that was added to solve the hot-spot issues reported in parallel views… I’ll take a look at this when I get back (on vacation atm).


using Version 6 SR7
(6.7.18171.4521, 6/20/2018) and still the same issue …

If you CHECK the option “Use advanced GPU lighting” in the Shaded mode settings, you’ll get the proper behavior… until I can fix this properly, that’s the only workaround I can suggest atm.


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