# \#autosize

**URL:** https://discourse.threejs.org/tag/autosize/1074.md

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## [How to scale a model based on 3D world coordinates?](https://discourse.threejs.org/t/how-to-scale-a-model-based-on-3d-world-coordinates/32178)

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**Author:** [@mesmes](https://discourse.threejs.org/u/mesmes)\
**Replies:** 3\
**Last updated:** [December 2, 2021, 6:47am UTC](https://discourse.threejs.org/t/how-to-scale-a-model-based-on-3d-world-coordinates/32178 "2021-12-02T06:47:52Z")

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Suppose I have 2 numbers: far 3d point 0.002 near 3d point -0.005 What is the best approach for affecting the 3d model size? (Do I need to Zoom in/out the camera or should I scale it ?) Do I need to convert the w…