# Merge LineGeometries

**URL:** <https://discourse.threejs.org/t/merge-linegeometries/34021>\
**Category:** Questions\
**Created:** [January 24, 2022, 11:03am UTC](https://discourse.threejs.org/t/merge-linegeometries/34021 "2022-01-24T11:03:14Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sw43](https://avatars.discourse-cdn.com/v4/letter/s/779978/32.png) [@sw43](https://discourse.threejs.org/u/sw43)\
**Post date:** [January 24, 2022, 11:03am UTC](https://discourse.threejs.org/t/merge-linegeometries/34021/1 "2022-01-24T11:03:14Z")

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Hello, is it possible to merge LineGeometry ([three.js examples](https://threejs.org/examples/?q=fat#webgl_lines_fat)) geometries? LineGeometry uses InterleavedBufferAttribute therefore built in mergeBufferGeometries function throws an error - InterleavedBufferAttributes aren’t supported. Can I leverage custom merge function or are there technical constraints?