# Using Mesh instead of Group is bad practise to change opacity of an 3DObject?

**URL:** <https://discourse.threejs.org/t/using-mesh-instead-of-group-is-bad-practise-to-change-opacity-of-an-3dobject/62380>\
**Category:** Questions\
**Tags:** materials\
**Created:** [March 6, 2024, 7:58pm UTC](https://discourse.threejs.org/t/using-mesh-instead-of-group-is-bad-practise-to-change-opacity-of-an-3dobject/62380 "2024-03-06T19:58:43Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![Lawrence3DPK](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.threejs.org/lawrence3dpk/32/29184_2.png) [@Lawrence3DPK](https://discourse.threejs.org/u/Lawrence3DPK)\
**Post date:** [March 7, 2024, 8:38am UTC](https://discourse.threejs.org/t/using-mesh-instead-of-group-is-bad-practise-to-change-opacity-of-an-3dobject/62380/7 "2024-03-07T08:38:48Z")

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You can see [this thread](https://discourse.threejs.org/t/cheap-misty-effect/6153/22) for a material based distance fog…

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_[View the full topic](https://discourse.threejs.org/t/using-mesh-instead-of-group-is-bad-practise-to-change-opacity-of-an-3dobject/62380)._