# Photometric Lighting Analysis

**URL:** <https://forums.sketchup.com/t/photometric-lighting-analysis/290462>\
**Category:** Extensions\
**Tags:** sketchup, advice, mac\
**Created:** [September 18, 2024, 12:10pm UTC](https://forums.sketchup.com/t/photometric-lighting-analysis/290462 "2024-09-18T12:10:50Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![jackwates](https://avatars.discourse-cdn.com/v4/letter/j/5daacb/32.png) [@jackwates](https://forums.sketchup.com/u/jackwates)\
**Post date:** [September 18, 2024, 12:10pm UTC](https://forums.sketchup.com/t/photometric-lighting-analysis/290462/1 "2024-09-18T12:10:50Z")

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Hello,

I’m curious if anyone’s come across a Sketchup plugin that can perform accurate photometric analysis ie. lux-level readings…? The equivalent to Relux or Dialux…?

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**Author:** ![ateliernab](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/ateliernab/32/198399_2.png) [@ateliernab](https://forums.sketchup.com/u/ateliernab)\
**Post date:** [September 18, 2024, 12:50pm UTC](https://forums.sketchup.com/t/photometric-lighting-analysis/290462/2 "2024-09-18T12:50:57Z")

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something like that maybe ?

> [@Sun Hours extension - anybody use it (doesn't seem to work in 2024)](https://forums.sketchup.com/t/sun-hours-extension-anybody-use-it-doesnt-seem-to-work-in-2024/280893/6):
>
> I haven’t used SunHours in a while, could be they discontinued their support? But i may have found some (better?) alternatives that could help you out. Maybe you can try the free extension ‘[ShadeDat](https://extensions.sketchup.com/extension/ad2136f8-4859-4f74-8d0e-8f04dfa4ba52/shadedat)’ which still seems to work (at least in su22). [image] Another option is the payed extension ‘[DL-Light](https://deluminaelab.com/dl-light/en/)’, which offers a variety of options to study natural light in sketchup.

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**Author:** ![JQL](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/jql/32/8074_2.png) [@JQL](https://forums.sketchup.com/u/JQL)\
**Post date:** [September 18, 2024, 2:24pm UTC](https://forums.sketchup.com/t/photometric-lighting-analysis/290462/3 "2024-09-18T14:24:51Z")

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Lightup does it:

[LightUp - Features (light-up.co.uk)](https://www.light-up.co.uk/index.php?t=features&c=USD&tz=-60)

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**Author:** ![SailingSketcher](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/sailingsketcher/32/254243_2.png) [@SailingSketcher](https://forums.sketchup.com/u/SailingSketcher)\
**Post date:** [September 19, 2024, 12:56am UTC](https://forums.sketchup.com/t/photometric-lighting-analysis/290462/5 "2024-09-19T00:56:49Z")

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I happen to have almost 20 years providing photometric layouts. I will occasionally search for an extension, but nothing ever comes up. VRay in Studio allows for using .ies files for light fixtures which is nice, but nothing that would be able to replace AGi32. Which is a shame because AGi32 sucks for anything other than calculations.

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**Author:** ![gsharp](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/gsharp/32/25083_2.png) [@gsharp](https://forums.sketchup.com/u/gsharp)\
**Post date:** [September 19, 2024, 6:31am UTC](https://forums.sketchup.com/t/photometric-lighting-analysis/290462/6 "2024-09-19T06:31:29Z")

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Haven’t used it for a long time but Lightup will give you that feedback , l am rusty on the terms but you can determine light levels within your building and also total accumulative solar radiation in external spaces… eg levels of sun exposure in a landscape over the year in a colour map. that was very useful in my urban planning tasks