diegomacario

5 ms·

1.
by diegomacario 4mo ago
Last year we shipped a pinball game at Shopify that took some inspiration from Space Cadet. You can still play it here: https://bfcm.shopify.com/ Every year we ship a live visualization of our merchant's sales on Black
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by diegomacario 1y ago
I did this for years to learn computer graphics. I spent so many weekends and evenings building weird things that never made me a single dollar, but all the knowledge I gained eventually led to the job of my dreams. Here are some of the wei
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by diegomacario 4y ago
Hey mike, I'm the Diego, the person who wrote this blog post and implemented the majority of it. Reading this comment, I feel the need to challenge some of your assumptions. I don't expect to change your mind, but here's my t
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by diegomacario 4y ago
Well consider this sample from the Meta Movement SDK that allows you to control the facial expressions of a character with the face tracking of the Quest Pro: https://youtu.be/IQt4wTdGK64?t=315 Our tool could record those f
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by diegomacario 4y ago
For the arms you could use Meta's new Movement SDK: https://developer.oculus.com/documentation/unity/move-overvi... Although in my opinion the arms still look a bit janky. You can see a demo of a sample they
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by diegomacario 4y ago
Wow that's super cool! That's definitely the biggest challenge - how to keep the size of the mocap data small. Our library is not the best at that, since it simply records everything to Alembic files, which are quite heavy. Best o
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by diegomacario 4y ago
Holy smoke that's so cool, thanks for sharing it! I love that your work helped increase the number of morphTargets in Three.js. That's real impact!
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by diegomacario 4y ago
We actually built this to easily add hands to this concept video: https://twitter.com/StrangeNative/status/1613218237969494017... Animating hands by hand (no pun intended) is horrendously difficult, so our 3D arti
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by diegomacario 4y ago
It does amazingly well. Last May Meta released their Hand Tracking 2.0 update, and the quality of the hand tracking improved enormously. You can see a comparison of 1.0 and 2.0 here: https://www.youtube.com/watch?v=K-l-RXxYn
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by diegomacario 4y ago
I love this so much, thanks for sharing it! We have been thinking about similar concepts at Shopify. Mocapped performances convey so much more emotion than images or videos.
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Show HN: A tool for motion-capturing 3D characters using a VR headset(diegomacario.github.io)
103 points by diegomacario 4y ago|31 comments
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by diegomacario 4y ago
Hi dolmen! In the "Implementation Details" section at the bottom of the README I actually explain why I only display 4 curves instead of 10, and you can change the speed of the animation and pause it using the "Playback Speed
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by diegomacario 4y ago
Sorry for the confusion. Your second statement is correct. Sampling just means to evaluate the function at an appropriate t value. I will update the README to make this clearer.
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by diegomacario 4y ago
Hahaha this is a fair comment. I guess my intention was to show the complex number crunching that happens in the background to make characters move. I'm still thinking about better ways to visualize things.
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by diegomacario 4y ago
Thanks proc0! What you are describing (a hierarchy of bones) is exactly what I'm doing. I decided not to mention that to simplify the explanation of how character animations work, but here are the missing details: - All the little curv
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by diegomacario 4y ago
To be honest I don't see this as such a bad thing. Google Chrome has 70% of the browser market share, while Safari has 4%. I don't think there's anything wrong with prioritizing more popular platforms, specially when you just
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by diegomacario 4y ago
Wow that's fascinating, thanks for sharing it! Although I disagree with how the author describes quaternions as black boxes. The two questions he asks: - Why does i2=j2=k2=−1 and ij=k? - Why do we take a vector and upgrade it to an &qu
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by diegomacario 4y ago
Hi suyash, take a look at the README for information on what all the little graphs represent: https://github.com/diegomacario/Animation-Magic/blob/main/RE... There's also a button in the controls th
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by diegomacario 4y ago
I recommend running it on Chrome. It runs more smoothly there. I'm still improving the performance on Safari.
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by diegomacario 4y ago
Oh thanks for reporting that dwrodri! Note that the controls don't work on touchscreens yet. If you use a mouse/trackpad and keyboard, you should be able to play with all the settings.
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Show HN: Visualizing the math that powers 3D character animation(diegomacario.github.io)
238 points by diegomacario 4y ago|53 comments
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Show HN: A multiplayer game to discover NFT artists, built with WebAssembly(play.moonlightmuseum.io)
9 points by diegomacario 4y ago|2 comments
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by diegomacario 6y ago
That's a really cool idea! It's funny that you mention this because when I simulated the blocks hitting the words "Dyna-Kinematics" for the title GIF I thought: "This is what graphic designers struggle to do manuall
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by diegomacario 6y ago
Thank you! That's exactly what I was going for :-)
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by diegomacario 6y ago
Thank you! :-)
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by diegomacario 6y ago
Hi everyone! I'm the author of this project. I wrote it because I was very curious about physics simulation, and also because I wanted a reason to study a few libraries that I had never worked with like Qt. In the readme I tried to exp
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Show HN: Dyna-Kinematics – A 2D physics simulator with some unique features(github.com)
78 points by diegomacario 6y ago|15 comments
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by diegomacario 6y ago
Hi everyone! I'm the author of this project. I wrote it because I was very curious about physics simulation, and also because I wanted a reason to study a few libraries that I had never worked with like Qt. In the readme I tried to exp
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Show HN: Dyna-Kinematics – A 2D physics simulator with some unique features(github.com)
2 points by diegomacario 6y ago|1 comments
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by diegomacario 7y ago
Thank you! I will do that!

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