Daniel Holden
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theorangeduck.bsky.social
Daniel Holden
@theorangeduck.bsky.social
Animation & Machine Learning at Epic Games. Ex Ubisoft La Forge. Programmer & Occasional Writer. https://theorangeduck.com/
With a bit of help from the authors I've added another huge high quality dataset to my Geno retargetings. This time the very nice InterAct dataset (hku-cg.github.io/interact/).

You can find it here: github.com/orangeduck/i...
September 17, 2025 at 12:04 AM
Made a bare-bones Motion Matching implementation to test it: github.com/orangeduck/G...

Sadly I had to drop to 30fps because Python is so painfully slow even something as simple as Forward Kinematics can take several milliseconds. Eeek.
September 6, 2025 at 3:09 PM
My latest article is on the problem of joint-error propagation - and some techniques for tackling it when doing Machine Learning or other data-driven numerical methods.

theorangeduck.com/page/joint-e...
August 24, 2025 at 1:31 PM
I've added an appendix to my page on debug drawing text with lines with a contribution from @mikkomononen.bsky.social and his version of a non-monospaced font based on the Hershey Fonts Simplex characters:

theorangeduck.com/page/debug-d...
June 18, 2025 at 2:44 PM
More than once I've wanted to debug draw text in a game scene but found it not as easy as expected. I made a lookup table that allows you to draw text via line segments. It was a fun little weekend project, even if I'm sure it's something people have done before!

theorangeduck.com/page/debug-d...
April 8, 2025 at 8:45 PM
Time for another long blog post... and today it's all about how we handle the temporal aspect of animation data. And more specifically, how to approach things from a signal processing perspective, covering up-sampling, down-sampling, and everything in-between.

theorangeduck.com/page/filteri...
April 4, 2025 at 3:22 PM
I've uploaded a retargeted version of the 100STYLE dataset matching the other datasets: github.com/orangeduck/1...

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.
January 24, 2025 at 6:52 PM
My latest article is about one of my favorite techniques in graphics - Müller's method of Polar Decomposition.

It also details some variations, including one which is ~2x faster to compute with more regular convergence.

theorangeduck.com/page/variati...
November 23, 2024 at 4:27 PM