# Setting "Line Width" below 1?
**URL:** https://discourse.paraview.org/t/setting-line-width-below-1/5475
**Category:** ParaView Support
**Created:** [October 2, 2020, 7:46am UTC](https://discourse.paraview.org/t/setting-line-width-below-1/5475 "2020-10-02T07:46:37Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@AhmedSalih3d](https://discourse.paraview.org/u/AhmedSalih3d)
#### Post date: [October 2, 2020, 7:46am UTC](https://discourse.paraview.org/t/setting-line-width-below-1/5475/1 "2020-10-02T07:46:37Z")
Hello!
I can increase line width as I want, but if I try to set it below 1, it does not decrease? Is there anyway to force it to decrease.
Kind regards
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [October 2, 2020, 6:26pm UTC](https://discourse.paraview.org/t/setting-line-width-below-1/5475/2 "2020-10-02T18:26:25Z")
Nope, that is not supported.
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### Author:  [@AhmedSalih3d](https://discourse.paraview.org/u/AhmedSalih3d)
#### Post date: [October 2, 2020, 10:56pm UTC](https://discourse.paraview.org/t/setting-line-width-below-1/5475/3 "2020-10-02T22:56:54Z")
Out of curiosity, is there a reason one cannot scale it “indefinitely”? Perhaps the rendering pipe line?
Kind regards
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### Author:  [@dmreagan](https://discourse.paraview.org/u/dmreagan)
#### Post date: [October 5, 2020, 3:50pm UTC](https://discourse.paraview.org/t/setting-line-width-below-1/5475/4 "2020-10-05T15:50:21Z")
My guess is that OpenGL doesn’t support line widths less than 1 pixel. The [docs](https://www.khronos.org/registry/OpenGL-Refpages/gl4/html/glLineWidth.xhtml) say:
> GL\_INVALID\_VALUE is generated if width is less than or equal to 0.
It also says, without antialiasing:
> If the rounding results in the value 0, it is as if the line width were 1.
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### Author:  [@cory.quammen](https://discourse.paraview.org/u/cory.quammen)
#### Post date: [October 5, 2020, 4:40pm UTC](https://discourse.paraview.org/t/setting-line-width-below-1/5475/5 "2020-10-05T16:40:15Z")
To go smaller than width 1, we would need ParaView to enable multisample anti-aliasing, which we don’t do I think for performance reasons.