# GPU memory usage

**URL:** https://discourse.vtk.org/t/gpu-memory-usage/8661
**Category:** Web
**Created:** [June 4, 2022, 2:14pm UTC](https://discourse.vtk.org/t/gpu-memory-usage/8661 "2022-06-04T14:14:12Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![whxxyhf](https://discourse.vtk.org/user_avatar/discourse.vtk.org/whxxyhf/32/4780_2.png) [@whxxyhf](https://discourse.vtk.org/u/whxxyhf)
#### Post date: [June 4, 2022, 2:14pm UTC](https://discourse.vtk.org/t/gpu-memory-usage/8661/1 "2022-06-04T14:14:12Z")

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Can I apply three cameras to a renderer? For example, when I use volume to realize MPR, I guess vtk.js saved three volume data, so that the GPU memory usage is too high. Can you help me? Thank you very much!

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### Author: ![Sebastien\_Jourdain](https://discourse.vtk.org/user_avatar/discourse.vtk.org/sebastien_jourdain/32/100_2.png) [@Sebastien\_Jourdain](https://discourse.vtk.org/u/Sebastien_Jourdain)
#### Post date: [June 5, 2022, 2:05am UTC](https://discourse.vtk.org/t/gpu-memory-usage/8661/2 "2022-06-05T02:05:46Z")

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If you create the proper vtk.js pipeline you should only have 1 volume data.

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### Author: ![mau\_igna\_06](https://discourse.vtk.org/user_avatar/discourse.vtk.org/mau_igna_06/32/8064_2.png) [@mau\_igna\_06](https://discourse.vtk.org/u/mau_igna_06)
#### Post date: [June 5, 2022, 10:28am UTC](https://discourse.vtk.org/t/gpu-memory-usage/8661/3 "2022-06-05T10:28:40Z")

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You can try to check how it’s done in Slicer. You’ll have do a not very deep dive into the code know what you are looking for I think