Harry Nesbitt
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harrynesbitt.bsky.social
Harry Nesbitt
@harrynesbitt.bsky.social
Lead Artist/Developer for Alto’s Adventure & Alto’s Odyssey, founder of Land & Sea, currently working on summerhill.game
As I mentioned, this whole system is powered by my own simple software ray tracing renderer. And what's the point if you're not going to goof around with weird lens projections 📸
September 3, 2025 at 2:16 PM
Here's a demonstration of how probes can relocate themselves for better coverage. Blue probes are found to be inside (or too close) to geometry, so we push them away from the nearest surface normal where they can be more useful. Notice how the artefacts disappear and the lighting feels more accurate
September 3, 2025 at 1:51 PM
I was particularly pleased with how nicely it plays with my stylised time of day lighting system (a tool I've been developing for Summerhill and other projects) ☀️🌙
September 2, 2025 at 1:29 PM
Another random clip I never shared from when I was debugging moving grids and other optimisations. Here you can see new probes spawning around geometry as the camera moves. Larger cascades are disabled for a clearer demonstration.
September 2, 2025 at 12:48 PM
It also worked pretty nicely for specular reflections and volumetric fog.
September 2, 2025 at 10:43 AM
A recap for the Bluesky crowd: my implementation was largely based on DDGI, which uses software raytracing to sample light into a grid of probes. I implemented multiple cascades, moving grids & dynamic probe states. It allowed for infinite bounces & (potentially) infinite environments.
September 2, 2025 at 10:16 AM
Since I'm unlikely to come back to this any time soon, I figured I'd share some half-baked updates on where I landed with my realtime GI system a couple of years ago before burning out. Maybe one day...
September 2, 2025 at 9:55 AM
Hey Develop 👋🏻 I’m in Brighton this week with my Border Collie Patrick! Hit us up for friendly dev chat and excited tail wags
July 8, 2025 at 7:48 AM
Dartmoor Therapy
November 14, 2024 at 6:40 PM
The atmosphere of our game
November 12, 2024 at 4:00 PM
When I’m not working on sheep herding games, I like to tinker with custom lighting tech.

Here’s my own realtime global illumination system running in Unity!
October 20, 2024 at 10:25 AM
Important pupdate:
October 15, 2024 at 8:12 AM
When life imitates art…

Meet Patrick the Border Collie 🐶✨
October 7, 2024 at 12:18 PM
Video is here! Check out this teaser trailer for my upcoming sheep herding game, Summerhill 🐑

➡️ Wishlist on Steam summerhill.game/steam
September 17, 2024 at 8:23 AM
Happy New Year, Bluesky!

Can’t wait for the year ahead and to share more about my upcoming project! Here’s a sneak peek from the talented @alariko.bsky.social.

Check out summerhill.game for more!
January 1, 2024 at 11:51 AM
Hi folks 👋🏻 I'm Harry, lead artist and developer of the Alto's Adventure series! I'm currently working on a brand new game with my team at Land & Sea. It's called Summerhill, and you can check it out here: summerhill.game 🐑

Super excited to be joining Bluesky, already feeling the good vibes!
September 12, 2023 at 1:35 PM