Building Real-Time Global Illumination: Part 1
Building Real-Time Global Illumination: Part 1
Building Real-Time Global Illumination: Part 1 launched on July 27, 2024 with 5 votes, #2,267 of 5,184 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 2 years on.
What it does
Part 2: Radiance Cascades is now available. But read this post first! I'll be using three.js for this post and everything we discuss is written from scratch and entirely contained in the post / html. I wrote this with mdxish , so you can read this post in markdown as well, where all executed code is broken into grokable javascript markdown codeblocks. This post supports desktop and mobile. Global illumination is about how light interacts with surfaces. When you turn a light on in your room at night, it's not a small glowing orb. It spreads to the walls, the floor, and the ceiling, breathing life into the room. Desks, doors, and objects cast shadows, softening as they stretch away.…from jason.today
Does a similar job
all alternatives →- RTReal-time image generation with SDXL Lightning2024 · fastsdxl.ai · ▲444
Virtual Sun2020 · innerscene.com · ▲101We built CircadianLab, a free in-browser tool for lighting design. It uses webGPU shaders to calculate melanopic equivalent daylight illuminance (mel-EDI, formerly EML, relevant for circadian rhythm and WELL v2 compliance), photopic illuminance, UGR glare per CIE 117, and actual daylight through windows and skylights. It has a database of 400,000+ IES files from 81 lighting manufacturers and supports easy sharing of scenes/configs with other people. Daylight uses the NREL Solar Position Algorithm and a Perez clear / intermediate / overcast sky model, mixed into the same…
- WD[WebGL Demo] Indirect Lighting Using Reflective Shadow Maps2017 · erkaman.github.io · ▲6



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Source: Show HN post ↗
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Many years ago, I made VJ softwares (to mix live visuals in clubs) for unexpected platforms like the Game Boy Advance, the Playstation 2 and the Raspberry Pi. This year, I’m back with a new web-app: Pikimov. Inspired by Photopea (a free Photoshop clone), I created this web-based motion design & video editor as an alternative to After Effects, to fill empty void. It's free, without signup, without cloud uploads (your files stay on your machine), and your projects are not used for AI models training.
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