# Jagged lines in SU models - straight lines as well **URL:** \ **Category:** SketchUp\ **Created:** [November 8, 2015, 8:58pm UTC](https://forums.sketchup.com/t/jagged-lines-in-su-models-straight-lines-as-well/17287 "2015-11-08T20:58:55Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![green\_igloo](https://avatars.discourse-cdn.com/v4/letter/g/bb73d2/32.png) [@green\_igloo](https://forums.sketchup.com/u/green_igloo)\ **Post date:** [November 8, 2015, 8:58pm UTC](https://forums.sketchup.com/t/jagged-lines-in-su-models-straight-lines-as-well/17287/1 "2015-11-08T20:58:55Z")
Just want to make sure that I have set the correct OpenGL and Nvidia settings to reduce jagged lines. Windows 7 SU 2015 \_ OpenGL set to ‘16 True Colour Medium’ Nvidia GeForce 8400GS - set to ‘let the 3D application decide’ ---
**Author:** ![Gully\_Foyle](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/gully_foyle/32/124_2.png) [@Gully\_Foyle](https://forums.sketchup.com/u/Gully_Foyle)\ **Post date:** [November 8, 2015, 9:10pm UTC](https://forums.sketchup.com/t/jagged-lines-in-su-models-straight-lines-as-well/17287/2 "2015-11-08T21:10:52Z")
What you’re interested in is anti-aliasing, which gives lines on screen the appearance of smoothness by feathering the edges (a slight oversimplification). You want to choose the highest anti-aliasing setting available in Preferences \> OpenGL. My installation offers 2X and 4X anti-aliasing modes; I have selected 4X. Depending on your system and the size and complexity of the model, higher anti-aliasing settings may adversely impact performance; 4X hasn’t been an issue for me. YMMV. -Gully Incidentally, I have a piece of four-week-old chicken in my refrigerator. Is “moeld” the stuff growing on it? -G ---
**Author:** ![josephkim626](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/josephkim626/32/31239_2.png) [@josephkim626](https://forums.sketchup.com/u/josephkim626)\ **Post date:** [November 8, 2015, 10:10pm UTC](https://forums.sketchup.com/t/jagged-lines-in-su-models-straight-lines-as-well/17287/3 "2015-11-08T22:10:45Z")
> [@Is it possible to get rid of jagged lines (i.e. to anti-alias) in real time?](http://forums.sketchup.com/t/is-it-possible-to-get-rid-of-jagged-lines-i-e-to-anti-alias-in-real-time/17037): > > Hello It is possible to get Sketchup (latest version) to anti-alias to screen in real time. The lines in Sketchup are all extremely jagged… Fwiw, I am using Windows 8.1 (Pro x64) running Graphics card: ATI Radeon HD 5770. I am still very much trialing Sketchup and do not want to spend any money getting rid of the jaggedness of lines. [I am used to using Xara Designer Pro which has been anti-aliasing very fast in real time for over a decade] Fwiw, I am using AMD Catalyst Software Suite (v15… Some related topic that was fairly recent. ---
**Author:** ![green\_igloo](https://avatars.discourse-cdn.com/v4/letter/g/bb73d2/32.png) [@green\_igloo](https://forums.sketchup.com/u/green_igloo)\ **Post date:** [November 9, 2015, 6:59am UTC](https://forums.sketchup.com/t/jagged-lines-in-su-models-straight-lines-as-well/17287/4 "2015-11-09T06:59:15Z")
Many thanks Gully\_Foyle