# How to transform coordinate system in three?

**URL:** <https://community.cesium.com/t/how-to-transform-coordinate-system-in-three/9701>\
**Category:** CesiumJS\
**Created:** [May 25, 2020, 2:56am UTC](https://community.cesium.com/t/how-to-transform-coordinate-system-in-three/9701 "2020-05-25T02:56:51Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![11118](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/11118/32/2377_2.png) [@11118](https://community.cesium.com/u/11118)\
**Post date:** [May 25, 2020, 2:56am UTC](https://community.cesium.com/t/how-to-transform-coordinate-system-in-three/9701/1 "2020-05-25T02:56:52Z")

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I want to make a scene with Cesium and three， I use Cesium camera data in three，but the orientation of the model is not correct. how to transform coordinate system?

 ![QQ图片20200525105257](https://global.discourse-cdn.com/cesium/original/2X/0/064245db39d5bfb980101658d8d0f0475f79bc34.jpeg)

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**Author:** ![omar](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/omar/32/1999_2.png) [@omar](https://community.cesium.com/u/omar)\
**Post date:** [May 27, 2020, 8:23pm UTC](https://community.cesium.com/t/how-to-transform-coordinate-system-in-three/9701/2 "2020-05-27T20:23:17Z")

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It’s hard to tell what you’re doing wrong without seeing a code example we can run.

Cesium + ThreeJS integration isn’t officially supported. Can you tell me what you’re trying to do that you had trouble achieving just with CesiumJS?

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**Author:** ![11118](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/11118/32/2377_2.png) [@11118](https://community.cesium.com/u/11118)\
**Post date:** [May 30, 2020, 7:08am UTC](https://community.cesium.com/t/how-to-transform-coordinate-system-in-three/9701/3 "2020-05-30T07:08:45Z")

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I want to achieve a more realistic rocket plume effect，but the particle system of Cesium is not perfect

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**Author:** ![omar](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/omar/32/1999_2.png) [@omar](https://community.cesium.com/u/omar)\
**Post date:** [May 31, 2020, 6:45pm UTC](https://community.cesium.com/t/how-to-transform-coordinate-system-in-three/9701/4 "2020-05-31T18:45:47Z")

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I think it may be easier to try implementing the particle system technique used in ThreeJS inside your your Cesium app.