Over the last decade, I’ve worked on a various number of projects professionally.
Senior Unity Engineer @ Decoy Games
- Developed a non photorealistic shader to render characters in DOTS graphics with procedural rim lighting, emission blending, and gradient ramping for in game cinematics.
- Developed a selective post processing effect to target specific rendering layers with depth testing to avoid incorrect depth sorting of post processed layers.
- Optimized render pipeline by 30% to maintain 6-7 ms render times on a NVIDIA GTX 1080TI by reducing the total number of temporary render textures and read/writes to those textures.
- Developed custom animation timeline with scrubbing controls using Yoga flexbox allowing multiple artists to simultaneously edit timelines and reduce complex merge conflicts.
Cofounder of InitialPrefabs, LLC
- Co-founded with my brother in June 2016, where we did consulting work for the following companies.
- Developed NimGui, a 1 draw call user interface to allow developers to draw using an immediate mode API. NimGui processes 20k vertices in 0.38 ms/frame on a Ryzen 5 5600.
- Integrated font packing with MSDF in Rust interoping with C# to reduce font atlas disk size by 30% and improve atlas generation times by 2x via lockless multithreading to a single image.
- Developing a TaskGraph in C99 with an API similar to Unity’s Job System, work stealing, cyclic dependency prevention, and automated bindings to other languages via Cpp.AST.NET.
PHYND
- Developed C# & C++ SDK to support Unity Game Engine (v2017LTS -> 6.0LTS) and Unreal Engine (v4.6 -> v6.1) enabling low latency in-game video/audio cloud streaming on a Ryzen 5 5600 (2.5ms time frame).
The Feast
- Developed a custom deferred non physically based render (NPBR) pipeline in URP allowing better scalability when authoring many spot lights.
- Developed custom Amplify shader templates to
- Developed a procedural spot light system using indirect rendering to visualize enemy detection range.
- Developed a runtime CPU culling system using spatial maps for interior levels allowing unnecessary objects to be culled reducing frametime from 8ms to 5ms on a NVIDIA GTX 1080.
Cell To Singularity
- Developed a backward compatible save game schema to replace the existing save game schema allowing players to have multiple saves and to rollback their existing save to an earlier version.
ESC Game Theater (Defunct)
- Developed a customize rendering system to allow ESC Game Theater to render thousands and millions of sprites via WebGL on stadium jumbotrons
Metamorphosis Games
- Developed an hierarchical finite state machine (HFSM) to allow the game designers to author more complex behaviours using a node like system.
- Glued behaviour states to override the animation’s state machine allowing animations to blend consistently.
VrWiz (Defunct)
- Developed a pipeline to trim Unity’s terrain system and bake it as a custom mesh to draw with indirect rendering
- Developed a procedural tree system allowing the player to design their own tree and use that tree to draw indirectly through out the entire world.
- Developed custom Blinn-Phong shaders using LUTs and reduced render texture allocations on runtime to optimize the frame time to run at 72 FPS on the Oculus Quest.
KungFu Kickball
- Trained machine learned agents to play KungFu Kickball in order to fill a lobby with feasible and believable bots instead of using behaviour trees to design the behaviors.
Mokuni Games
- Developed procedural level generation reducing the amount of time spent designing reasonable levels for Kitty in the Box 2.
- Developed a force and penetration detection system for Kitty in the Box VR on the HTC Vive. This prevents the virtual hands from clipping directly into the the main character’s body.
- Developed an efficient navigation sampling system to allow NPCs to quickly navigate between platforms.
Metis Suns
- Developed a visualization system to display the state of BoB’s individual thought nodes.
- Developed a dampening system to normalize force to ensure that BoB’s individual nodes do not
violently react under extreme pressure.
- Developed a pipeline to store control attendee inputs to help normalize the forces from attendees.
- Developed a neural network based utility theory system allowing NPCs to constantly evaluate needs with multi agent coordination/support for Emissary in the Squat of Gods.
- Developed an node based graph editor allowing designers to develop agent sensors and behaviours with minimal inputs from the developers for Emissary in the Squat of Gods.
Software Engineer & Technical Writer @ Thousand Ant
- At Thousand Ant, I was a technical writer and software engineer helping other companies build technical demos and writing easy to digest technical documentations.
Kart Microgame
My team and I were responsible for updating Unity’s Kart Microgame to match more modern arcades. Some features I contributed to the project include:
- New game modes
- Mobile WebGL optimizations for low end phones
- Optimized a 35ms runtime on Samsung S6, iPhone6s, & Google Pixel 1 to 18 ms
- Please visit the link here to test the game on mobile
- ML Agents integration (check out the video below)
HyperCastle
- Developed an SVG parser to parse all unique unicodes and pack them efficiently on runtime.
- Developed a custom glyph renderer to draw all glyphs within the SVG with culling support in orthographic and perspective mode for efficient rendering.
Tutorials for Unity
Below are a bunch of video tutorials I have written the scripts and recording to. Narration was done by a professional voice actor.
Flocking with the C# Job System
C# Job System: Using DOTS with Managed C# APIs
Bolt
Adaptive Performance
Physics Optimizations
Shader Graph Feature Video
Editor Scripting with UI Toolkit
Scriptable Objects Tutorial
Kart Microgame Updates & Video
Device Simulator
Tutorials for Genvid Technologies
Genvid provides a streaming engine solution to help interface Twitch viewers with the game they are viewing by allowing interactions between the viewers and streamers through customize interfaces!
