# Is there any way to make the edges produce this blurry luminous effect?

**URL:** <https://community.cesium.com/t/is-there-any-way-to-make-the-edges-produce-this-blurry-luminous-effect/41061>\
**Category:** CesiumJS\
**Created:** [May 30, 2025, 11:30am UTC](https://community.cesium.com/t/is-there-any-way-to-make-the-edges-produce-this-blurry-luminous-effect/41061 "2025-05-30T11:30:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![chao\_ma](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/chao_ma/32/29789_2.png) [@chao\_ma](https://community.cesium.com/u/chao_ma)\
**Post date:** [May 30, 2025, 11:30am UTC](https://community.cesium.com/t/is-there-any-way-to-make-the-edges-produce-this-blurry-luminous-effect/41061/1 "2025-05-30T11:30:30Z")

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I divided the countries using geojson. When the mouse moved over the countries, it would be highlighted, but there was no way to make the edges of the countries emit this kind of light

 ![image](https://global.discourse-cdn.com/cesium/original/3X/1/5/15fe2485bfb7cd264f5fe883d90e60da4d6f273d.jpeg)

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**Author:** ![jjhembd](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/jjhembd/32/10144_2.png) [@jjhembd](https://community.cesium.com/u/jjhembd)\
**Post date:** [June 16, 2025, 10:17pm UTC](https://community.cesium.com/t/is-there-any-way-to-make-the-edges-produce-this-blurry-luminous-effect/41061/2 "2025-06-16T22:17:21Z")

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Hi @chao_ma, welcome to the community!  
Have you looked at [PolylineGlowMaterialProperty](https://cesium.com/learn/cesiumjs/ref-doc/PolylineGlowMaterialProperty.html)?  
What did you use to generate that screenshot?