Marching Cubes

Source code on Github

An experiment with multithreaded marching cubes which degenerated, as should have been expected, into an LV-426 simulator.

Features

• Multithreaded marching cubes tesselator, using an octree space subdivision to reduce the space to march
• Simple OpenGL renderer, from first principles, no libraries or engines here
• Several volume primitive types, up to an infinite paging terrain with automatic spatially stable random reebling system
• Simple post processing stack, used for procedural sky and volumetric noise-based raymarched fog

Realtime multi-body tracking in VR

Work done at Vulcan, Inc to create realtime physical embodyment in VR, using multiple Intel RealSense depth cameras.

Features

• 16 Intel RealSense depth cameras, with automatic extrinsics computed via computer-vision by observing a Steam Vive Tracker with an attached aruco.
• Each depth camera had a dedicated Intel NUC running human body pose tracking software, and the poses were transformed to world space and sent to a pose aggregating server
• The pose aggregating server spatio/temporally tracked humans in the room and computed the best pose skeletons for each through analysis of the 16 pose streams
• All this was presented in real-time to users wearing a SteamVR headset, allowing users to see one another in the room and interact.

Surfacer

Source code on Github

A 2d side-scrolling physics-based game which I never finished. It no longer even compiles, because it depends on pre-C++0x11 tr1 libraries. I plan on attacking it and getting it running again, because it's too neat to let succomb to bitrot.

Features

• Destructible terrain, where cut-off geometry is dynamic, and part of gameplay
• Soft-body monsters! Grubs! Jellies! Worms! Grippy tentacles! Gross stuff!
• Fluids
• Quaint fullscreen shader effects
• SVG-based geometry representation of monsters, game items, and player, allowing me to design them in Illustrator

SGF / SRE

SimpleGameFramework & SimpleRenderingEngine: 3D Game framework written between 2007 and 2010. Written from ground-up ( as-in, I started with an empty project, and wrote it all myself) in C++ and some ObjectiveC, and with rendering in OpenGL/GLSL.

Features

• Physics, using the OpenDynamicsEngine and Bullet, as pluggable modules
• Shadow mapping for directional (using CSM), point and spot lights (using depth cubemaps), with efficient visibility culling of light volumes
• Quirky materials framework
• Voxel-based terrain, editable in real-time, with Lindstrom-Turk edge-collapse mesh optimization, uzing the CGAL library.
• Threaded Python scripting for the physics system - mainly used to make autonomous robotics simulations that can query their environment and send commands to servos/motors/actuators/etc
• Automatic environmental greebling details like grass, decals, etc using 3d perlin noise to keep distributions naturalistic

Squizit

Source code on Github

iOS implementation of classic dadaist Exquisite Corpse game.

Various Sciencey Illustrations

I know a few scientific researchers, and sometimes I do illustrations & animations for their papers.