# Visualisation anomaly

**URL:** <https://discourse.shapr3d.com/t/visualisation-anomaly/23631>\
**Category:** Modeling Questions\
**Created:** [January 17, 2023, 7:42pm UTC](https://discourse.shapr3d.com/t/visualisation-anomaly/23631 "2023-01-17T19:42:56Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Barryd](https://avatars.discourse-cdn.com/v4/letter/b/edb3f5/32.png) [@Barryd](https://discourse.shapr3d.com/u/Barryd)\
**Post date:** [January 17, 2023, 7:42pm UTC](https://discourse.shapr3d.com/t/visualisation-anomaly/23631/1 "2023-01-17T19:42:56Z")

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Just noticed this anomaly in visualisation.

These are 2 seperate parts that were colourised seperatly. When they are joined as 1 part these lines appear

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/7/e/7e5b1113d7d2bff8c46512664a837228acabedd0.jpeg)

 ![image](https://us1.discourse-cdn.com/flex002/uploads/shapr3d/original/3X/c/8/c8e2fb6cd01f7977acd8fdd1d07b4859be4e98fa.jpeg)

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**Author:** ![Laci\_K](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.shapr3d.com/laci_k/32/8196_2.png) [@Laci\_K](https://discourse.shapr3d.com/u/Laci_K)\
**Post date:** [January 18, 2023, 11:54am UTC](https://discourse.shapr3d.com/t/visualisation-anomaly/23631/2 "2023-01-18T11:54:42Z")

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Hi,

It’s called Z fighting, it happens when bodies occupy the exact same space, so their faces overlap eachother.

As they won’t result in a manufacturable body, it’s best to make sure it doesn’t happen.