Rhino 6 viewport extremely slow after upgrade

Hi I know there have been similar post about this posted before, but I couldn’t find a good answer in those post, so here I am.
I am wondering if anyone could take a look at my system info and tell me why my Rhino Viewport is running so slow. I am on a iMac, running windows parallel system and it was fine for a long time. I was able to made complicated 3d model with out any issue.
But recently after I reopened rhino and upgrade the software as the system keeps telling me, it couldn’t even perform basic rotate function anymore.
Really couldn’t figure out why. Hope to find an answer out there. Thank you

Rhino 6 SR27 2020-6-24 (Rhino 6, 6.27.20176.05001, Git hash:master @ ba2c30de00be5a8b210bc297715204e941911799)

License type: Educational, build 2020-06-24

License details: Cloud Zoo. In use by: Yihong Ding ()

Windows 10.0 SR0.0 or greater (Physical RAM: 2Gb)

Machine name: YIHONGDING9BBD

Non-hybrid graphics.

Primary display and OpenGL: Parallels Display Adapter (WDDM) (Unknown) Memory: 1GB, Driver date: 3-2-2020 (M-D-Y). OpenGL Ver: 2.1 ATI-1.68.24

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: Parallels and ATI Technologies Inc.

Render version: 2.1

Shading Language: 1.20

Driver Date: NA

Driver Version: NA

Maximum Texture size: 16384 x 16384

Z-Buffer depth: 24 bits

Maximum Viewport size: 16384 x 16384

Total Video Memory: 1036970 KB

Rhino plugins

C:\Program Files\Rhino 6\Plug-ins\Commands.rhp “Commands” 6.27.20176.5001

C:\Program Files\Rhino 6\Plug-ins\rdk.rhp “Renderer Development Kit”

C:\Program Files\Rhino 6\Plug-ins\RhinoBonusTools.rhp “Rhino Bonus Tools”

C:\Program Files\Rhino 6\Plug-ins\RhinoRender.rhp “Rhino Render”

C:\Program Files\Rhino 6\Plug-ins\rdk_etoui.rhp “RDK_EtoUI” 6.27.20176.5001

C:\Program Files\Rhino 6\Plug-ins\rdk_ui.rhp “Renderer Development Kit UI”

C:\Program Files\Rhino 6\Plug-ins\NamedSnapshots.rhp “Snapshots”

C:\Program Files\Rhino 6\Plug-ins\RhinoCycles.rhp “RhinoCycles” 6.27.20176.5001

C:\Program Files\Rhino 6\Plug-ins\Toolbars\Toolbars.rhp “Toolbars” 6.27.20176.5001

C:\Program Files\Rhino 6\Plug-ins\3dxrhino.rhp “3Dconnexion 3D Mouse”

C:\Program Files\Rhino 6\Plug-ins\Displacement.rhp “Displacement”

You need to roll back to 6SR26:

THANK YOU! This fixed my issue running Rhino6 in a similar configuration. The bug manifested differently for me, and I’ll share in case it helps for debugging. When I started Rhino6, all viewports appeared black. If I switched a viewport mode (for example) from Wireframe to Shaded, then the viewport would no longer be black and would show axes, but the graphics would not update (either by adding geometry or moving the camera).

When will we know when it’s safe to update?

I’ve been told the fix will be in V6 SR28
I think the fix is already in the V7 WIP

1 Like

Thank you! that fixed my problem!