# Polyline volume use image material，why the image overturn?

**URL:** <https://community.cesium.com/t/polyline-volume-use-image-material-why-the-image-overturn/42208>\
**Category:** CesiumJS\
**Created:** [July 21, 2025, 12:38pm UTC](https://community.cesium.com/t/polyline-volume-use-image-material-why-the-image-overturn/42208 "2025-07-21T12:38:25Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![yydy1991](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/yydy1991/32/28173_2.png) [@yydy1991](https://community.cesium.com/u/yydy1991)\
**Post date:** [July 21, 2025, 12:38pm UTC](https://community.cesium.com/t/polyline-volume-use-image-material-why-the-image-overturn/42208/1 "2025-07-21T12:38:25Z")

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look  
the right:

 ![e3f8a651df408da510390e33e46ca445](https://global.discourse-cdn.com/cesium/original/3X/f/5/f50d5e00629378f8fe9395754413dbaf368f3ed5.jpeg)  
the left:  
 ![22949c1dbd6ba1cf42e050332d8bb59e](https://global.discourse-cdn.com/cesium/original/3X/4/7/47cb53c26686e64857b507ccb554db9900138b8b.jpeg)

- My aim is for this picture material to wrap around the surface.  
thank you very much .