# Updates to lighting in three.js r155

**URL:** <https://discourse.threejs.org/t/updates-to-lighting-in-three-js-r155/53733>\
**Category:** Discussion\
**Tags:** lighting, webgl-renderer\
**Created:** [July 11, 2023, 1:59pm UTC](https://discourse.threejs.org/t/updates-to-lighting-in-three-js-r155/53733 "2023-07-11T13:59:05Z")\
**Posts on this page:** 1\
**Showing post:** 22

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**Author:** ![Mugen87](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.threejs.org/mugen87/32/5645_2.png) [@Mugen87](https://discourse.threejs.org/u/Mugen87)\
**Post date:** [August 9, 2023, 7:57am UTC](https://discourse.threejs.org/t/updates-to-lighting-in-three-js-r155/53733/22 "2023-08-09T07:57:30Z")

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Updating the light intensities for ambient and directional lights should be sufficient if you upgrade from r154 to r155. Since your baseline is r149, you probably also have to honor the changes related to color management. Read the following guideline for more details:

> [@Updates to Color Management in three.js r152](https://discourse.threejs.org/t/updates-to-color-management-in-three-js-r152/50791):
>
> The upcoming release r152 will contain changes affecting color and lighting. These updates enable a [“linear workflow”](https://developer.nvidia.com/gpugems/gpugems3/part-iv-image-effects/chapter-24-importance-being-linear) by default, for better image quality in both physically-based and non-physically-based scenes. By “linear workflow”, we mean that any sRGB input colors (as found in most textures, color pickers, CSS, and HTML) are converted from sRGB to a linear working color space for rendering, and the rendered image is converted back to sRGB for display. What does that mean for me? These cha…

BTW: If you want to be on the safe side, upgrade the engine step-by-step (r149 - r150 - r151 and so on) to see when things start to change.

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_[View the full topic](https://discourse.threejs.org/t/updates-to-lighting-in-three-js-r155/53733)._