# Is there a logarithmic color map for 3D .vtu models in Glance?

**URL:** https://discourse.paraview.org/t/is-there-a-logarithmic-color-map-for-3d-vtu-models-in-glance/9925
**Category:** ParaView Support
**Created:** [June 27, 2022, 3:52pm UTC](https://discourse.paraview.org/t/is-there-a-logarithmic-color-map-for-3d-vtu-models-in-glance/9925 "2022-06-27T15:52:42Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![pezzutti](https://discourse.paraview.org/user_avatar/discourse.paraview.org/pezzutti/32/9547_2.png) [@pezzutti](https://discourse.paraview.org/u/pezzutti)
#### Post date: [June 27, 2022, 3:52pm UTC](https://discourse.paraview.org/t/is-there-a-logarithmic-color-map-for-3d-vtu-models-in-glance/9925/1 "2022-06-27T15:52:42Z")

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Hi!

I have a vtu model in which 96% of the values are close to 0, but there are a few points with values in the thousands, so the model looks mostly monotone with a few hot spots here and there. I need this lower value range to be more visible. I’ve tested most of the color options available in the app, but didn’t find any that scales in log.

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### Author: ![Forrest\_Li](https://discourse.paraview.org/user_avatar/discourse.paraview.org/forrest_li/32/1935_2.png) [@Forrest\_Li](https://discourse.paraview.org/u/Forrest_Li)
#### Post date: [June 29, 2022, 4:58pm UTC](https://discourse.paraview.org/t/is-there-a-logarithmic-color-map-for-3d-vtu-models-in-glance/9925/2 "2022-06-29T16:58:18Z")

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Glance currently does not support logarithmic mapping. I can look into how we can enable that functionality.

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### Author: ![pezzutti](https://discourse.paraview.org/user_avatar/discourse.paraview.org/pezzutti/32/9547_2.png) [@pezzutti](https://discourse.paraview.org/u/pezzutti)
#### Post date: [June 29, 2022, 8:54pm UTC](https://discourse.paraview.org/t/is-there-a-logarithmic-color-map-for-3d-vtu-models-in-glance/9925/3 "2022-06-29T20:54:10Z")

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Thanks, for the reply!

That would be greatly appreciated! Unfortunately I don’t know enough JS to do that myself. My project is mostly Python, but we have the need to show .vtu/vtp models in a browser. There are a couple other features we need as well, but the log mapping is the most important for now.
