·     Led a team developing a Chinese IME + Dictionary for Windows, Linux and Windows Mobile.

·     Designed and developed a Data Engine capable of searching and enumerating a heterogeneous set of databases much larger than the 32mb process address space of a Windows Mobile device while only consuming a small amount of system memory, and having average-case user-imperceptible latency. This same code runs on Windows/Linux; using a different (template) pre-fetching algorithm, exploiting additional memory.

Developed a Chinese/Japanese/English Flashcard Application for Windows and Windows Mobile.

Researched and tested various bridge technologies for interfacing software with a distributed set of Oracle databases.

Worked with another PhD student to develop software for use in medical image processing ; using Matlab and C++.

·     Was responsible for the engineering development of the Xbox Exclusive feature: Co-op Mode.

·   Acted as the lead of Co-op development, and instructed others in their work on assets for the feature.

·   Reached all feature milestones on time, and with full functionality of included features.

·   Synchronized the entire single player experience over the internet, which required an understanding of the way that the entire engine functioned as a whole, as well as the intricacies of each system.

·   Developed new data structures and algorithms which were used extensively within the network code.

·   Worked in and fixed bugs in almost every part of the code (graphics renderer, sound renderer, animation system, IK system, physics system, script system, network system, file system, etc.).

·   Wrote separate (when relevant) documentation of all of my work for engineers, designers and artists.

·     Created a Replay-able Simulation mode for recording game data for the purposes of performance profiling, game testing & debugging, and creating game demos.

·     Created a build test system which kept the team abreast of breaking changes to assets.

·     Created a utility to parse and modify animation key-frame data stored in the engine’s native format.

Commonly assisted programmers on other projects with advanced OpenGL questions.

Research

Spring 2005

Rensselaer Polytechnic Institute

Troy, NY

Advanced Physics Simulation Research II

Advisor: Jeff Trinkle

Continued development on the Physics Simulator started in 2004.

Research

Spring 2005

Rensselaer Polytechnic Institute

Troy, NY

Advanced Cross-Genre and Cross-Platform Game Engine Design

Advisor: Marc Destefano

This R&D project was aimed at optimizing the design of a cross-genre game engine, such that it could be used to create games of any genre, yet still perform as well as an engine optimized for a single genre, without being cumbersome.

 

Research

Spring 2005

Rensselaer Polytechnic Institute & Wadsworth Research Lab

Troy, NY

Image Processing Independent Study

Advisor: Qiang Ji

This was an R&D Project aimed at creating a C++ library usable for tracking edges, contours, objects, etc. in image sets.

 

Research

Fall 2004

Rensselaer Polytechnic Institute

Troy, NY

Advanced Physics Simulation Research

Advisor: Jeff Trinkle

Was one of two lead developers on a from-the-ground-up C++ Physics Simulator project for the accurate simulation of planar systems of bodies experiencing unilateral contacts with friction.

 

Research

Fall 2004

Rensselaer Polytechnic Institute

Troy, NY

Distributed Haptic Feedback Networks Research

Advisor: Suvranu De

Developed a physics based distributed haptic feedback system for use over computer networks such as the internet.

 

Research

Fall 2004

Rensselaer Polytechnic Institute

Troy, NY

Minds & Machines – AI/Robotics

Advisor: Bram van Huelven

Led and mentored a team during the development of an autonomous robot with the ability to solve any theoretically solvable instantiation of the Wumpus World problem.

See http://www.cs.rpi.edu/~roghab/research/minds_and_machines_ai_robotics_urp.doc for an in-depth explanation.

Award

Fall 2003

Won first place in the 6th annual Minds & Machines Lego Robot Competition.

See: http://www.rpi.edu/~khemls/mm/index.html for a description of the competition and our Robot.

Research

Advanced Parallel Simulation Research Project

Continued development of the 3D engine I developed during the first two independent studies, specifically investigating my research interests in parallel simulation.

·     Created a new lighting algorithm to compute accurate lighting from arbitrarily complex polygonal or non-polygonal area light sources in real time (Generates Accurate Soft-Shadows).

·     Developed a “Dynamic Pipeline Reordering Algorithm” to dynamically reconfigure the execution order of engine pipeline stages and sub stages on the fly, on a per-frame basis, in order to maximize parallelism and pipeline efficiency and minimize execution-bubbles resulting from uneven pipeline latencies.

·     Developed a hybrid async/synchronous multithreading architecture, with an emphasis on scalability (100+ CPUs)

 

Research

Advanced 3D Engine Development Independent Study

Continued engine development where the first independent study left off; Began advanced research into topics which truly caught my interest as exciting and challenging problems: Efficient Stenciled Shadow Volumes, Real Time Soft Shadows, High Dynamic Range Processing, Efficient HDR Global & Dynamic Lighting, Real Time HDR Texture Usage, Highly Efficient Parallel Execution and GPU Programmability as a problem solving tool.

 

Research

3D Engine Development Independent Study

Developed a first person 3D engine using C++ and x86 Assembly along with the OpenGL and DirectX API’s atop the Win32 platform, integrating knowledge and ideas from real-time 3D Graphics, efficient Data Structures, real-time Algorithms, Parallel Processing, API Design, Human Computer Interaction, etc.

·     Extensively researched proven implementations in each of these areas; always contemplating novel ideas for extending these implementations to better suit the needs of the system and or overcome problems; for example:

·   Developed the entire engine framework including a hierarchical culling algorithm utilizing a novel approach to the now popular Portal/Sector data structure (which was unknown to me at the time) and a pre-computed potentially-visible-set, providing efficient visibility-culling and an extremely flexible system for organizing world space and object/world interaction.

·     Developed relationships with technical and non-technical customers both face-to-face and via telephone; was responsible for explaining technical details in an accurate, yet easy to understand manner and for assisting the customers with any problems they may have experienced throughout their time as a customer of the company.

·     Held several sales records including higher net sales figures than all full-time employees while working part-time.

Achieved 71 net activations in a single month while working only 15 hours per week.

Advised the owner on all technology decisions; carried out all technology implementation and educated other employees on the use of said technology.

·     Developed an extensible Java based chat client/server system for internal and external use. Created specific clients for each of several different usage models.

Researched new and emerging technologies to assist management in business decisions related to future development work and presented this research during in-house meetings.