# Gaussian blur transparency of outline

**URL:** <https://community.cesium.com/t/gaussian-blur-transparency-of-outline/6063>\
**Category:** CesiumJS\
**Created:** [September 20, 2017, 9:44am UTC](https://community.cesium.com/t/gaussian-blur-transparency-of-outline/6063 "2017-09-20T09:44:35Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![tristan.huang](https://avatars.discourse-cdn.com/v4/letter/t/e8c25b/32.png) [@tristan.huang](https://community.cesium.com/u/tristan.huang)\
**Post date:** [September 20, 2017, 9:44am UTC](https://community.cesium.com/t/gaussian-blur-transparency-of-outline/6063/1 "2017-09-20T09:44:35Z")

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1. A concise explanation of the problem you're experiencing.

The current outline material of line don't support gaussian-blur transparency, I want to show polyline with gaussian-blur transparenct border.

2. A minimal code example. If you've found a bug, this helps us reproduce and repair it.

3. Context. Why do you need to do this? We might know a better way to accomplish your goal.

4. The Cesium version you're using, your operating system and browser.  
v1.37

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**Author:** ![Gabby\_Getz](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/gabby_getz/32/7838_2.png) [@Gabby\_Getz](https://community.cesium.com/u/Gabby_Getz)\
**Post date:** [September 20, 2017, 9:07pm UTC](https://community.cesium.com/t/gaussian-blur-transparency-of-outline/6063/2 "2017-09-20T21:07:45Z")

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Hi Tristan,

Try the [PolylineGlowMaterialProperty](https://cesiumjs.org/Cesium/Build/Documentation/PolylineGlowMaterialProperty.html).

See it in action in [this Sandcastle example](https://cesiumjs.org/Cesium/Apps/Sandcastle/index.html?src=Polyline.html&label=CZML).

Thanks!

Gabby