Stepped lines

hello. few days ago my lines was smooth and okay. now it looks like this. like it has steps. what is wrong with it? and how can i fix it?
(few days ago i was lagging in game so change some parameters in game video settings and i think also changed some parameters in Nvidia control panel (but can’t say this for sure). any help would be much appreciated.

here is my nvidia setting screens



hello,
this can be the antialiasing turned off.

simpliest way to fix that without interfering with your gaming settings is to go to the right tab in nvidia control panel (sorry it’s in french for me) :

select trimble sketchup in the list, and click on the “restore” button with the nvidia logo on the right side. restart sketchup and even your computer

If it doesn’t fix anything in sketchup graphics settings (window > preferences > graphics), pick a higher multisample anti aliasing value

thinking of what I’ve just said, it is possible that you changed global parameters, so restoring to default specifically for sketchup won’t fix anything. It is best that you first restore default for global settings, then make adjustments specifically for the game you have issues with

Thank you for your reply.
Unfortunately, I didn’t wait for the answer on the forum and because of my haste, i restored the whole Nvidia settings and it fixed this line issue. Now I think I will have to adapt to gaming again heh. Fortunately I will know In the future that specific program settings can be restored.

now i am more happy than was few minutes ago lol.

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The global settings for Antialiasing and Anisotopic Filtering should be set to “Application controlled”.