# \#lut

**URL:** https://discourse.threejs.org/tag/lut/69.md

[Latest](https://discourse.threejs.org/latest.md) · [Categories](https://discourse.threejs.org/categories.md) · [Tags](https://discourse.threejs.org/tags.md)

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## [Numeric values for sprite](https://discourse.threejs.org/t/numeric-values-for-sprite/67344)

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**Author:** [@sunshine23](https://discourse.threejs.org/u/sunshine23)\
**Replies:** 2\
**Last updated:** [June 27, 2024, 11:16am UTC](https://discourse.threejs.org/t/numeric-values-for-sprite/67344 "2024-06-27T11:16:54Z")

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I am following this example: three.js examples This is code of the example: three.js/examples/webgl\_geometry\_colors\_lookuptable.html at 134ff886792734a75c0a9b30aa816d19270f8526 · mrdoob/three.js · GitHub As you can see…

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## [LUT issues for z-vector faces in mesh](https://discourse.threejs.org/t/lut-issues-for-z-vector-faces-in-mesh/33691)

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**Author:** [@Sofmal](https://discourse.threejs.org/u/Sofmal)\
**Replies:** 0\
**Last updated:** [January 16, 2022, 1:00pm UTC](https://discourse.threejs.org/t/lut-issues-for-z-vector-faces-in-mesh/33691 "2022-01-16T13:00:11Z")

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I have issues with my LUT color map. I copied the example from three.js documentation and it looks quite good - but I always end up with black color faces for vertical surfaces. Any ideas why? When I add the ground that…

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## [Use of "external" LUTs possible?](https://discourse.threejs.org/t/use-of-external-luts-possible/32104)

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**Author:** [@threejsman](https://discourse.threejs.org/u/threejsman)\
**Replies:** 1\
**Last updated:** [November 26, 2021, 4:42am UTC](https://discourse.threejs.org/t/use-of-external-luts-possible/32104 "2021-11-26T04:42:20Z")

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Hello, there are providers of LUTs like Eldamar Studio. Is it possible to use such LUTs ? i.e 100 Christmas LUTs Pack | Eldamar Studio - Lightroom Presets and Overlays for professionals Thanks in advance.

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## [Don't render updated colors when geometry.ToNonIndex()](https://discourse.threejs.org/t/dont-render-updated-colors-when-geometry-tononindex/30351)

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**Author:** [@Sofmal](https://discourse.threejs.org/u/Sofmal)\
**Replies:** 10\
**Last updated:** [October 4, 2021, 4:04pm UTC](https://discourse.threejs.org/t/dont-render-updated-colors-when-geometry-tononindex/30351 "2021-10-04T16:04:40Z")

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Im trying to apply a color map on a geometry. I have a simpe box (see image). It is triangulated so I expect 12 faces, 36 verticies and 108 positions and 108 colors values. The original color is green. I want it to be pu…

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## [How to show labels to Legend of LUT](https://discourse.threejs.org/t/how-to-show-labels-to-legend-of-lut/10729)

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**Author:** [@gauravgaikwad94](https://discourse.threejs.org/u/gauravgaikwad94)\
**Replies:** 4\
**Last updated:** [July 18, 2021, 8:51am UTC](https://discourse.threejs.org/t/how-to-show-labels-to-legend-of-lut/10729 "2021-07-18T08:51:40Z")

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Hello All, I have added legend using Sprite but I am unable to add labels to the legend. When I am setting the labels using lut.setLegendLabels then I am getting the below warning : THREE.SpriteMaterial: 'useScreenCoo…

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## [\[Composer\] LutPass: Can 64x8px images be loaded as lutTexture instead of a CUBE file?](https://discourse.threejs.org/t/composer-lutpass-can-64x8px-images-be-loaded-as-luttexture-instead-of-a-cube-file/28095)

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**Author:** [@orion\_prime](https://discourse.threejs.org/u/orion_prime)\
**Replies:** 4\
**Last updated:** [July 16, 2021, 6:26pm UTC](https://discourse.threejs.org/t/composer-lutpass-can-64x8px-images-be-loaded-as-luttexture-instead-of-a-cube-file/28095 "2021-07-16T18:26:03Z")

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In the above tutorial instead of using heavy 1MB .CUBE files, 26kb image files are used to generate the lut filter . I was wondering if it was possible to use the same image in the LutPass ? I tried using the method …

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## [JSON file viewer](https://discourse.threejs.org/t/json-file-viewer/258)

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**Author:** [@zmalol](https://discourse.threejs.org/u/zmalol)\
**Replies:** 3\
**Last updated:** [April 27, 2017, 3:12pm UTC](https://discourse.threejs.org/t/json-file-viewer/258 "2017-04-27T15:12:24Z")

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Hi, I like the way of displaing geometry in JSON file with the pressure value at https://threejs.org/examples/#webgl\_geometry\_colors\_lookuptable Is there anything like this to load and view my own JSON files for displa…