Tim Davison ᯅ
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timd-ca.bsky.social
Tim Davison ᯅ
@timd-ca.bsky.social
Building CellWalk •  Apple Design Awards Finalist

computer graphics • phd • biology • visionOS
I just updated CellWalk for the M5 Apple Vision Pro! This app really pushes the GPU (entire cells with billions of atoms) and it's a great way to test the M5.

CellWalk on M5 increases resolution and detail 1.5x over M2! Huge. It's super sharp and detailed. Apple Intelligence is also way faster.
October 30, 2025 at 9:03 PM
I quietly released new features for Apple Vision Pro in the last update: Widgets and on-device AI explanations powered by Apple Intelligence.

I don't have an M5 yet, has anyone tried CellWalk on the M5 Apple Vision Pro?! How is it? more resolution (it should get more by default)?!
October 24, 2025 at 12:35 AM
Concept chains: Tap and dive deep into unfamiliar terms and concepts. It's pretty cool.. because now everything in the app is interactive, from the visuals to the text itself.
September 29, 2025 at 10:59 PM
Concept chains: Tap and dive deep into unfamiliar terms and concepts. It's pretty cool.. because now everything in the app is interactive, from the visuals to the text itself.
September 29, 2025 at 10:56 PM
Check it out! I'm proud to unveil CellWalk 2 for Apple Vision Pro. Bring beautiful and immersive biology learning into your space.

@cellwalk.bsky.social 🧬🦠🍎
#science #applevisionpro #visionos #apple #wwdc25
June 4, 2025 at 7:36 PM
I need your help!

I'm doing my first user study (ahhh!!), and I'm looking for a few awesome users to interview. If you have used my app CellWalk (any platform), would you be willing to hop on a zoom call with me for about 20-30 minutes?! I would love to buy you lunch (via PayPal). 🧪 #EduSky
January 30, 2025 at 2:43 AM
I finally finished a new optimization for CW's render tech on Apple Vision Pro (profiling on an M2 iPad GPU). Super happy because it took a few weeks to implement.

This is the Terarosa POSCO branch (Seoul). Super beautiful place to work
January 10, 2025 at 4:19 AM
Happy New Year from Seoul

Far from home, I've been reflecting on the years developing CW. Even though the video starts with 2020, the journey began 12 years ago. It will take many more years to achieve the full vision, but in this moment I'm grateful for where we are.
December 31, 2024 at 12:39 PM
WIP: sticking my head inside a cell.

I've been focusing on rendering performance and quality. I implemented a really fast first pass spatial denoiser, improved sampling, fixed rate rasterization artifacts, and fixed sphere rasterization artifacts.

#applevisionpro #gamedev #graphics
November 15, 2024 at 7:33 PM
Working on spatial interactions

(it's an atomistic model of a bacteria cell)

#visionpro
October 30, 2024 at 8:34 AM
I've been exploring this atomistic bacteria cell model in Apple Vision Pro for hours (the points, if you can see them, are individual atoms).

I just finished implementing rasterization rate maps in all parts of CellWalk's renderer (Metal + CompositorServices)

#visionOS #vr #ar #mr #AppleVisionPro
October 21, 2024 at 12:51 AM