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Browser-based light pollution simulator using real photometric data

  • Hacker News

Hi HN — author here. iesna.eu is a browser-based ecosystem for working with photometric data: parsing standard luminaire files (LDT/EULUMDAT, IES LM-63, Oxytech, ATLA-S001), running design calculations against EN 13201 / ANSI/IES RP-8 / CJJ 45 / IES-IDA MLO, and (the part I mo...

  • Published: May 2, 2026
  • First seen: May 2, 2026
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AI Summary

Hi HN — author here. iesna.eu is a browser-based ecosystem for working with photometric data: parsing standard luminaire files (LDT/EULUMDAT, IES LM-63, Oxytech, ATLA-S001), running design calculations against EN 13201 / ANSI/IES RP-8 / CJJ 45 / IES-IDA MLO, and (the part I mo...

Best for

Teams evaluating AI product workflows / Builders comparing emerging tools / Operators tracking early category shifts

Why it matters

Primary discovery source is Hacker News.

Key Features

  • Primary public product URL is https://iesna.eu/?wasm=skyglow_demo.
  • Description: Hi HN — author here. iesna.eu is a browser-based ecosystem for working with photometric data: parsing standard luminaire files (LDT/EULUMDAT, IES LM-63, Oxytech, ATLA-S001), running design calculations against EN 1320....
  • Listed on Hacker News as "Browser-based light pollution simulator using real photometric data".
  • Source description: Hi HN — author here. iesna.eu is a browser-based ecosystem for working with photometric data: parsing standard luminaire files (LDT/EULUMDAT, IES LM-63, Oxytech, ATLA-S001), running design calculations against EN 1320....
  • Source publish date is 2026-05-02.

Use Cases

  • Primary discovery source is Hacker News.
  • Hacker News mention is recent (2026-05-02).
  • Primary public product URL is https://iesna.eu/?wasm=skyglow_demo.
  • Description: Hi HN — author here. iesna.eu is a browser-based ecosystem for working with photometric data: parsing standard luminaire files (LDT/EULUMDAT, IES LM-63, Oxytech, ATLA-S001), running design calculations against EN 1320....
  • Listed on Hacker News as "Browser-based light pollution simulator using real photometric data".

Why Now

Browser-based light pollution simulator using real photometric data is appearing on fresh discovery surfaces, so it is worth reviewing while momentum is still forming. Confidence is currently low (41/100), so treat this as an early signal rather than a settled trend.

Community Signals

Trend score

46

24h momentum

Rising

Hacker News points

22

Rising

Facts / Signals / Inference / Unknowns

Facts

  • Listed on Hacker News as "Browser-based light pollution simulator using real photometric data".
  • Source description: Hi HN — author here. iesna.eu is a browser-based ecosystem for working with photometric data: parsing standard luminaire files (LDT/EULUMDAT, IES LM-63, Oxytech, ATLA-S001), running design calculations against EN 1320....
  • Source publish date is 2026-05-02.
  • Description: Hi HN — author here. iesna.eu is a browser-based ecosystem for working with photometric data: parsing standard luminaire files (LDT/EULUMDAT, IES LM-63, Oxytech, ATLA-S001), running design calculations against EN 1320....
  • Primary public product URL is https://iesna.eu/?wasm=skyglow_demo.

Signals

  • Hacker News mention is recent (2026-05-02).
  • Primary discovery source is Hacker News.

Inference

Trust data is still pending

The evidence pipeline has not produced enough structured trust blocks for this product yet.

Unknowns

  • Documentation is not explicitly linked in the current allowed evidence set.
  • No tagline is stored on the current product record.
  • Pricing details are not explicitly linked in the current allowed evidence set.
  • Recent changelog or release history is not explicitly linked in the current allowed evidence set.

Evidence Snapshots

Browser-based light pollution simulator using real photometric data

Listed on Hacker News as "Browser-based light pollution simulator using real photometric data".

Browser-based light pollution simulator using real photometric data official profile

Primary public product URL is https://iesna.eu/?wasm=skyglow_demo.

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Original Sources

Hacker News