Daniel Holden
@anorangeduck
Animation & Machine Learning at Epic Games. Ex Ubisoft La Forge. Programmer & Occasional Writer.
I think Twitter is finally over for me. All else aside I'm just not enjoying it anymore. I'll host tweets on my website (theorangeduck.com/page/microblog) & be on bluesky (bsky.app/profile/theora…) for now. I'll still do what is eternally fun: mathematics, animation, graphics, gamedev!
Learned a new spring fact from my colleague @Mr_Rowl recently. For a critically damped spring tracking a target moving at a constant velocity, the amount of time the spring will lag behind the target is given by "halflife / ln(2)". Added to my blog post! theorangeduck.com/page/spring-ro…
I've uploaded a retargeted version of the 100STYLE dataset matching the other datasets: github.com/orangeduck/100… I wasn't sure if I should add it at first. The quality is lower due to the inertial capture, and it's missing finger motion, but overall I figured it's still worth it.
It's been a while since I did a pure Machine Learning article on my blog, but today I have a post for you about adding noise to Neural Networks, and some fun experiments with Flow-Matching: theorangeduck.com/page/noise-neu…

This is a rare opportunity to join the Unreal Engine Animation Team. If you're an experienced Unreal Developer, with a passion for tools and runtime animation, or know someone who is: please reach out! The team is building something really special and you could be part of it!…
If you're in Zurich definitely check out the Strauhof Museum. The Maschinenpoesie exhibition is wonderfully put together, incredibly unique and very thought provoking!
Today I have a short blog post on something in game development that took me far too long to realize: that DeltaTime is a frame behind. theorangeduck.com/page/delta-tim…
Today's blog post is on a hidden gem that I'm certain will have passed many graphics people by: a closed-form solution to Polar and Singular Value Decomposition for 3x3 matrices - from a paper by Huancheng Lin, Floyd M. Chitalu, and Taku Komura. theorangeduck.com/page/closed-fo…