Realistic and Physical Lighting in UE5: What is PBL ?

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Music: “Away”, by Meydän, licensed under CC by 4.0: freemusicarchive.org

TIMESTAMPS:

00:00 Intro
01:00 Lighting Studies
02:53 What is PBL ?
07:00 Building a Database
10:41 Developing a Tool
13:50 Outro

RESSOURCES:

• Physical Lighting Units - Epic Documentation: https://dev.epicgames.com/documentation/de-de/unreal-engine/using-physical-lighting-units-in-unreal-engine

• The Light Meter Explained — How and Why to Use Light Meters: https://www.youtube.com/watch?v=ayQYe27rPLM

• The Science of Lighting - 80lv: https://80.lv/articles/breakdown-the-science-of-lighting

• Get Started With Physically Based Lighting In UE5 With PBL Database - 80lv: https://80.lv/articles/get-started-with-physically-based-lighting-in-ue5-with-pbl-database

CHAPTER 1: LIGHTING STUDIES

• LookUpDoodles: https://www.artstation.com/artwork/LRK6zP

• The Simplest Trick for Great Lighting — Bounce Boards Explained: https://www.youtube.com/watch?v=6sDnXbuLuXc

• Countryside Timelapse by vjgalaxy: https://pixabay.com/fr/videos/fleuve-mi%C3%B1o-vignes-des-nuages-21910/

CHAPTER 2: WHAT IS PBL?

• Moving Frostbite to PBR: https://www.ea.com/frostbite/news/moving-frostbite-to-pb

• The Lighting Technology of Detroit: Become Human: https://www.youtube.com/watch?v=7dVv6XwkLbM

• Candela definition: https://en.wikipedia.org/wiki/Candela

• Lumen definition: https://en.wikipedia.org/wiki/Lumen_(unit

• SI base unit: https://www.bipm.org/en/si-base-units/candela

• Luminance definition: https://en.wikipedia.org/wiki/Luminance

• Illuminance definition:https://en.wikipedia.org/wiki/Illuminance

• Luminance graphic 01:https://www.apexlighting.com/glossary/candela/

• Luminance graphic 02: https://www.researchgate.net/figure/Representation-of-calculation-of-Luminance-L-detected-at-angle-from-vertical_fig4_368762114

• Acer Monitor Specifications: https://store.acer.com/en-us/23-8-nitro-kg1-gaming-monitor-kg241y-sbiip

• Neon footage by Mikhail Nilov: https://www.pexels.com/fr-fr/video/lumineux-art-nuit-sombre-8058349/

• Clouds footage by Miguel Á. Padriñán:https://www.pexels.com/fr-fr/video/ciel-nuages-temps-bleu-6772574/

• Illuminance graphic: https://en.wikipedia.org/wiki/Illuminance

CHAPTER 3: BUILDING A DATABASE

• Public Database from external sources: https://docs.google.com/spreadsheets/d/13aK9tJQzl5aTxEnArc9Pefms1e8uzAW467Lu43PutLQ/edit?gid=0#gid=0

• Light meter photograph: https://oceanstudio.com/film-media-glossary/light-meter

• Roger Deakins using a light meter: https://exposureworks.co.uk/metering-light-101-the-dynamic-range/

• Do you need a light meter ? - Anthony Gugliotta: https://www.youtube.com/shorts/3-Dg7DUqJeE

• Icon of light meter by nuengrutai: https://thenounproject.com/icon/light-meter-7077215/

• Icon of screen by Freepik: https://www.flaticon.com/fr/icone-gratuite/magasin-en-ligne_8825147?term=magasin&page=1&position=73&origin=search&related_id=8825147

• Icon of bulb by Freepik: https://www.flaticon.com/fr/icone-gratuite/idee_841743?term=ampoule&page=1&position=3&origin=search&related_id=841743

• Sekonic Spotmeter: https://sekonic.com/sekonic-l-858d-u-speedmaster-light-meter/

• Lake Timelapse by vjgalaxy: https://pixabay.com/fr/videos/fleuve-mi%C3%B1o-leau-ch%C3%A9ri-des-nuages-22580/

• Traffic by alexborodai: https://pixabay.com/fr/videos/road-mouvement-le-coucher-du-soleil-84970/

CHAPTER 4: DEVELOPING A TOOL

• EV Chart: https://photographylife.com/exposure-value

• Sunny 16 rule explained: https://www.slrlounge.com/photography-essentials-the-sunny-16-rule/

• Zone System: https://www.kimhildebrand.com/how-to-use-the-zone-system/

• Blown Out Highlights? This is the Key To Perfect Exposures: https://www.youtube.com/watch?v=j1Rq2yHflWc

• The Exposure Triangle - Studio Binder: https://www.studiobinder.com/blog/what-is-the-exposure-triangle-explained/