# What is the name of the example that has a light object with an extensive mini-menu for tweaking purposes?

**URL:** <https://discourse.threejs.org/t/what-is-the-name-of-the-example-that-has-a-light-object-with-an-extensive-mini-menu-for-tweaking-purposes/44335>\
**Category:** Questions\
**Tags:** light\
**Created:** [November 4, 2022, 5:01am UTC](https://discourse.threejs.org/t/what-is-the-name-of-the-example-that-has-a-light-object-with-an-extensive-mini-menu-for-tweaking-purposes/44335 "2022-11-04T05:01:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![MeJayEss](https://avatars.discourse-cdn.com/v4/letter/m/d9b06d/32.png) [@MeJayEss](https://discourse.threejs.org/u/MeJayEss)\
**Post date:** [November 4, 2022, 5:01am UTC](https://discourse.threejs.org/t/what-is-the-name-of-the-example-that-has-a-light-object-with-an-extensive-mini-menu-for-tweaking-purposes/44335/1 "2022-11-04T05:01:45Z")

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Several months ago I waded through all the ThreeJS examples and found an example that has a ThreeSJ light object, that had a mini-menu (dat.gui.module.js) you could use to play with the parameters. I can’t seem to find that example again and when I try to run one of the light object related examples on the ThreeJS web site using Chrome, I get an error message saying my browser doesn’t support `WebGPU`.

Can someone give me the JS file name of that example? Also, does anyone know why I’m getting that `WebGPU` error now when I didn’t before?

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**Author:** ![byDezign](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.threejs.org/bydezign/32/24605_2.png) [@byDezign](https://discourse.threejs.org/u/byDezign)\
**Post date:** [November 4, 2022, 6:20am UTC](https://discourse.threejs.org/t/what-is-the-name-of-the-example-that-has-a-light-object-with-an-extensive-mini-menu-for-tweaking-purposes/44335/2 "2022-11-04T06:20:57Z")

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There are a ton of examples with lights and the control ui:  
[https://threejs.org/examples/?q=light](https://threejs.org/examples/?q=light)

And the WebGPU error is because you are trying to open one of the special WebGPU demos which requires you to be using a Developer setup browser with WebGPU enabled (chrome Canary etc)  
They won’t run on the majority of browsers