export IES file from Luzrender

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export IES file from Luzrender

Post by walt17 » Fri Jun 26, 2020 3:24 pm

I am a regular user of Luxcorerender.

We are producing a new modular lighting system (LUO-light.com) for which we would like to create photometric ies files. We have contacted measuring laboratories to measure the real fixtures. According to the information we received, it is impossible to measure curved light sources accurately.

So I am looking for software that can create the photometric web from 3D models, especially from light-emitting curved meshes. I am aware that Luxcorerender does not have such a feature. Though, I imagine that it could be of interest for other users as well.

To summarize my questions: Is anyone aware of a software that can create ies files from any light-emitting 3D model? Could this be a feature worth to be integrated in Luxcorerender?

Thank you for your attention!

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Re: export IES file from Luzrender

Post by Dade » Fri Jun 26, 2020 3:40 pm

Actually, you could build such tool around LuxCoreRender: it would be about using BAKECPU to bake the lightmap of a sphere around the light-emitting 3D model (as accurate as possible, with more triangles as possible to approximate curved surfaces bot of the light emitter and the surrounding sphere). The light map should match what the corresponding photometric ies file is.
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Re: export IES file from Luzrender

Post by lighting_freak » Fri Jun 26, 2020 4:20 pm


I would be interested in such a tool as well.

Could you please be a little more specific how you might get some [cd] values from luxcorerender?

OS - Windows 7 X64
CPU - Intel CORE i7
GPU1 - Variants of notebook card from nVidia
GPU2 - Variants of notebook onboard card from Intel
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