So the gray shadows in rhino rendering mode has been solved.
But I’m still getting this same issue from grasshopper. I just tried the file I posted before here after resetting to default settings in rendered mode.
Also making a new file creates the same problem.
Here’s system information from the Rhino’s Help menu:
> Rhino 6 SR0 2017-11-28 (Rhino WIP, 6.0.17332.10241, Git hash:master @ 9359b47f5eb8d52c08ca047420e2fe6f08347939) > > Windows 7 SP1 (Physical RAM: 16Gb) > > Quadro M2000M/PCIe/SSE2 (OpenGL ver:4.5.0 NVIDIA 385.08) > > OpenGL Settings > Safe mode: Off > Use accelerated hardware modes: On > Redraw scene when viewports are exposed: On > > Anti-alias mode: 8x > Mip Map Filtering: Linear > Anisotropic Filtering Mode: Height > > Vendor Name: NVIDIA Corporation > Render version: 4.5 > Shading Language: 4.50 NVIDIA > Driver Date: 7-25-2017 > Driver Version: 23.21.13.8508 > Maximum Texture size: 16384 x 16384 > Z-Buffer depth: 24 bits > Maximum Viewport size: 16384 x 16384 > Total Video Memory: 4 GB > > C:\Program Files\Rhino WIP\Plug-ins\Commands.rhp "Commands" > C:\Program Files\Rhino WIP\Plug-ins\WebBrowser.rhp "WebBrowser" > C:\Program Files\Rhino WIP\Plug-ins\rdk.rhp "Renderer Development Kit" > C:\Program Files\Rhino WIP\Plug-ins\RhinoScript.rhp "RhinoScript" > C:\Program Files\Rhino WIP\Plug-ins\IdleProcessor.rhp "IdleProcessor" > 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\Alerter.rhp "Alerter" > C:\Program Files\Rhino WIP\Plug-ins\IronPython\RhinoDLR_Python.rhp "IronPython" > C:\Program Files\Rhino WIP\Plug-ins\RhinoCycles.rhp "RhinoCycles" > C:\Program Files\Rhino WIP\Plug-ins\Grasshopper\GrasshopperPlugin.rhp "Grasshopper" > 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"