# Issues with line rendering

**URL:** https://discourse.vtk.org/t/issues-with-line-rendering/5752
**Category:** Support
**Created:** [May 10, 2021, 11:24am UTC](https://discourse.vtk.org/t/issues-with-line-rendering/5752 "2021-05-10T11:24:59Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![jensgw](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/j/74df32/32.png) [@jensgw](https://discourse.vtk.org/u/jensgw)
#### Post date: [May 10, 2021, 11:24am UTC](https://discourse.vtk.org/t/issues-with-line-rendering/5752/1 "2021-05-10T11:24:59Z")

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Hi there, does anybody have an idea what happens to the lines in the attached picture? Depending on the viewing angle the thick part of the line moves. The line should be of uniform thickness of 3 px.

 ![vtk_LineRendering](https://discourse.vtk.org/uploads/default/original/2X/d/d97ac6a9ef17d99146b58688c8ece69e5447940e.png)

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### Author: ![DavidMiraut](https://discourse.vtk.org/user_avatar/discourse.vtk.org/davidmiraut/32/3329_2.png) [@DavidMiraut](https://discourse.vtk.org/u/DavidMiraut)
#### Post date: [May 10, 2021, 1:10pm UTC](https://discourse.vtk.org/t/issues-with-line-rendering/5752/2 "2021-05-10T13:10:07Z")

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May you have several lines that are almost overlapping?  
 ![vtk_LineRendering_detailed_zoom](https://discourse.vtk.org/uploads/default/original/2X/4/46680d444c0bec84001b4323f78c3865227945c4.jpeg)

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### Author: ![jensgw](https://discourse.vtk.org/letter_avatar_proxy/v4/letter/j/74df32/32.png) [@jensgw](https://discourse.vtk.org/u/jensgw)
#### Post date: [May 12, 2021, 12:25pm UTC](https://discourse.vtk.org/t/issues-with-line-rendering/5752/3 "2021-05-12T12:25:59Z")

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Thx for the hint! I’ll look into it.