Professor of Mathematics and Computer Science. Interested in 3D graphics, video game development, virtual reality and augmented reality.

Joined May 2010
101 Photos and videos
Polyhedral dice are cool. #AFrame and #threejs are cool. Time to bring them together! New demos: physics-based infinite dice tower, and a ball of 1,000 rotating dice (uses an instanced mesh). Examples live at stemkoski.github.io/A-Frame-…, free dice models at github.com/stemkoski/A-Frame…
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Updates on #VR #GameDev with #AFrame and #threejs: added dynamic lighting, ambient occlusion, animated shader effects, and ambient sounds. After collecting the colorful orbs, vanquish the dark orbs! (Still work in progress, but code available on GitHub.) youtu.be/cSiCBBhdAD8

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Did you ever point a video camera at a screen that displays what the video camera sees? Just for fun, created this with #AFrame and #threejs, works on desktop and is extra fun in #VR! Live example at: stemkoski.github.io/A-Frame-…
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Working on some #VR #GameDev with #AFrame and #threejs. Features randomly generated dungeons, a GPS-style minimap, and collectable objects with particle effects. Still very much a work in progress, but enough to share a video of how it looks so far: youtu.be/5otJdCfHbhI

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Interactive physics in an #AFrame #VR world. Built using the PhysX component, part of the #VARTISTE project by @zach_geek. Live example at stemkoski.github.io/A-Frame-… Also check out VARTISTE at vartiste.xyz/! youtube.com/watch?v=VJByuxQv…

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Created some animated shaders in #VR with #threejs and #AFrame: a dissolve effect using Perlin noise, a Mandlebrot fractal with Julia sets, Conway's Game of Life (processing done in fragment shader), and a raymarching demo. All examples live on GitHub: stemkoski.github.io/A-Frame-…
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Going for a walk in my #AFrame #VR world! Model made with #VRoid, amazing and easy-to-use software. Excellent A-Frame #VRM plugin by github.com/binzume/aframe-vr…, integrates with VMD/BVH motion files. Live example at stemkoski.github.io/A-Frame-…. @aframevr @vroid_pixiv_en
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Working on new #VR projects with #threejs and #AFrame: new components for movement, selection, and holding objects. Also: components for interactive music players, books, and video games! Available on GitHub: stemkoski.github.io/A-Frame-… Watch at: youtube.com/watch?v=qhBkicF8…
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Lee Stemkoski retweeted
D57/58: Learned how to animate the turtle and add acceleration/deceleration 🐢🙌 Started to learn about collision polygons. Lots of Math #100DaysOfCode #java #WomenWhoCode
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Navigate 3D scenes easily in A-Frame @aframevr with smartphones/tablets using on-screen controls - buttons or joystick(s). Works seamlessly with look-controls & "magic window" effect. Demo: stemkoski.github.io/A-Frame-… More demos & source code on GitHub: stemkoski.github.io/A-Frame-…
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Just finished a mini project, creating on-screen joystick controls in Javascript. Supports mouse/touch and multiple simultaneous joysticks. Planning to incorporate this into some A-Frame demos soon for accessibility. Demo: stemkoski.github.io/HTML-Joy… Source: github.com/stemkoski/HTML-Jo…
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I'm excited to announce that I've received an Epic MegaGrant to write an open-source textbook on creating 3D graphics frameworks with Python. Will be based on the ThreePy library, available on GitHub: github.com/stemkoski/three.p… Writing starts next semester at @AdelphiU!
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Looking forward to working with co-author and developer Michael Pascale on this project. Thanks to @mrdoob and #threejs for inspiration, and #EpicGames for confidence in our vision and financial support. We're excited for the chance to give back to the open-source community!
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Just discovered poly.google.com (how did I miss this for so long?) and updated A-Frame @aframevr models example, including an animated model for fun. stemkoski.github.io/A-Frame-…
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Introducing new A-Frame @aframevr components to create curves and tubes specified by parametric equations. Functions entered as strings and parsed with github.com/silentmatt/expr-e…. Example at: stemkoski.github.io/A-Frame-…
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Along the same lines, also created a new A-Frame @aframevr component that moves an entity along a path specified by parametric equations, adjusting position and rotation (yaw and pitch angles) over time. stemkoski.github.io/A-Frame-…
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Virtual fireworks! Particle effects created in A-Frame @aframevr with the Shader Particle Engine library. Live example at stemkoski.github.io/A-Frame-… (audio make need time to load). youtu.be/j3nh0pVAZUQ

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Working on particle effects in A-Frame @aframevr. Best component I've seen is (seemingly little-known) github.com/harlyq/aframe-spe… which gives full access to *all* features in @LukeMoody Shader Particle Engine from github.com/squarefeet/Shader…. Live demo at: stemkoski.github.io/A-Frame-…
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