Invisible curves


A fiew days ago I have updated my Rhino7 to the current 7 SR24 version . Yesterday evening there was a windows 10 home “Update and switch off” action on my computer.

Unfortunately today I cant see in Rhino the crvs on the screen. After creating them, they just became invisible. Background color is light gray, layer color is black or any other color, display mode wireframe, in option menu the crv objects setted to 3 pixels.
I can selecting them, because the gumball and the command line show that the selections is happened.
But I can’t work this way.

System information:

Rhino 7 SR24 2022-11-4 (Rhino 7, 7.24.22308.15001, Git hash:master @ cb2ad12922ceb989b185972675bb705a00abb97d)
License type: Commercial, build 2022-11-04
License details: Cloud Zoo

Windows 10 (10.0.19045 SR0.0) or greater (Physical RAM: 32Gb)

*Computer platform: DESKTOP *

Standard graphics configuration.

  • Primary display and OpenGL: Radeon ™ Pro WX 5100 Graphics (AMD) Memory: 8GB, Driver date: 10-20-2022 (M-D-Y). OpenGL Ver: 4.6.0 Compatibility Profile Context*
  • Accelerated graphics device with 7 adapter port(s)*

  •    - Windows Main Display attached to adapter port #0*
  •    - Secondary monitor attached to adapter port #1*

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: 4x*
  • Mip Map Filtering: Linear*
  • Anisotropic Filtering Mode: High*
  • Vendor Name: ATI Technologies Inc.*
  • Render version: 4.6*
  • Shading Language: 4.60*
  • Driver Date: 10-20-2022*
  • Driver Version: 31.0.12027.7000*
  • Maximum Texture size: 16384 x 16384*
  • Z-Buffer depth: 24 bits*
  • Maximum Viewport size: 16384 x 16384*
  • Total Video Memory: 24286 MB*

I have ununstall and reinstall Rhino7, checked the graphic driver status, (was the newest driver) but the problem is the same.
Has anibody an idea what to do to eliminate this problem?

Thank you the answeres in advance!


Hi Frank - look here -

AMD drivers sometimes need that slider a little left of max.


Hi Pascal,

Thank you for the answer!

Really that was the problem. Now everithing works fine.

(I have never had to do this before, but now this was the solution.)