# About anti-aliased lines+volume rendering

**URL:** https://discourse.vtk.org/t/about-anti-aliased-lines-volume-rendering/10410
**Category:** Web
**Created:** [January 10, 2023, 7:06am UTC](https://discourse.vtk.org/t/about-anti-aliased-lines-volume-rendering/10410 "2023-01-10T07:06:54Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![Xoz](https://discourse.vtk.org/user_avatar/discourse.vtk.org/xoz/32/5714_2.png) [@Xoz](https://discourse.vtk.org/u/Xoz)
#### Post date: [January 10, 2023, 7:06am UTC](https://discourse.vtk.org/t/about-anti-aliased-lines-volume-rendering/10410/1 "2023-01-10T07:06:54Z")

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Hi everyone,

I’ve encountered the situation similar to this topic[https://discourse.vtk.org/t/advice-for-high-quality-anti-aliased-lines-volume-rendering/2141/3](https://discourse.vtk.org/t/advice-for-high-quality-anti-aliased-lines-volume-rendering/2141/3)

This is the performance on my chrome:

Without Volume:

 ![without_volume](https://discourse.vtk.org/uploads/default/original/2X/c/c40bec2c2c741b78a089827aa2b8becd60e73010.png)

With Volume:  
 ![with_volume](https://discourse.vtk.org/uploads/default/original/2X/6/6a13006862ef197371b3a43d394642c6771d94a8.png)

I’ve checked the render options but did not find API like `SetUseFXAA` in the javascript version, is there anything I can do to improve the rendering quality?

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### Author: ![finetjul](https://discourse.vtk.org/user_avatar/discourse.vtk.org/finetjul/32/154_2.png) [@finetjul](https://discourse.vtk.org/u/finetjul)
#### Post date: [January 12, 2023, 8:42am UTC](https://discourse.vtk.org/t/about-anti-aliased-lines-volume-rendering/10410/2 "2023-01-12T08:42:07Z")

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@sankhesh WDYT ? Looks like the volume rendering is disabling AA. Is it on purpose or some automatic behavior controlled by the browser?  
@Xoz did you try on different machines, OS, browsers, setup, graphic cards?

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### Author: ![Xoz](https://discourse.vtk.org/user_avatar/discourse.vtk.org/xoz/32/5714_2.png) [@Xoz](https://discourse.vtk.org/u/Xoz)
#### Post date: [January 12, 2023, 9:13am UTC](https://discourse.vtk.org/t/about-anti-aliased-lines-volume-rendering/10410/3 "2023-01-12T09:13:41Z")

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Hi Julien,

I haven’t tried other OS yet, this happened both on my Chrome(64bit v108.0.5359.125) and FireFox(64bit v108.0.2).

Graphic card is NVIDIA GeForce RTX3060.