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Marek Vojtko, MSc

6201 Windhaven Parkway, Apartment 2523	(+1) 508 215 6426
Plano, TX 75093, USA	marek@vojtko.com

  

Work Experience

Programming Internship	Tools and Development Pipeline	August–October 2005
	Sproing Interactive Vienna, Austria

 

 ·         Designed and implemented a shader connection and combination tool for cross-platform development.

·          Later became the Modular Arbitrary Shader System, the topic and project of my first diploma thesis.

 

Game Experience

Lead Engineer	Nightmare	August–December 2008
	The Guildhall at SMU

 

·         Modification of the Source engine, 15-person team (4 programmers).

·         Created several tools to facilitate the artists’ use of the pipeline.

·         Implemented particle effect systems and menu interfaces.

·         Selected by faculty as lead engineer

·         Scheduled tasks for team members, wrote documentation.

·         Worked with game designer to define the implementation of all gameplay systems.

 

Engineer	Extinction	January–April 2008
	The Guildhall at SMU

 

·         Modification of the Unreal Tournament 2004 engine, 17-person team (4 programmers).

·         Created a 3^rd person camera.

·         Implemented the dinosaur functionality, including special attacks and effects.

·         Changed several default Unreal behaviors that conflicted with the gameplay.

·         Was part of a two-member team implementing the animation system.

 

Sole Developer	Water3	July–September 2007
	The Guildhall at SMU

 

·         Implemented a complete 2D rendering engine using Win32 and GDI+ APIs.

·         Features included alpha blending, parallax scrolling, sprite-sprite, and sprite-tile collisions.

·         Used XML for level descriptions and tile-placement.

·         Produced all art assets (except main character).

 

Technology Experience

Master Thesis	Procedural Forest Generation	August–December 2008
	The Guildhall at SMU

 

·         Created a graphical tool for procedural creation of forests.

·         Creation is based on multiple organic, randomly generated noise textures.

·         Implemented a variety of algorithms for information extraction from textures and compared results.

·         Improved the GUI based on user feedback to surpass interfaces of typical level generation tools.

·         Results are exportable in a variety of formats are directly usable in game engines.

 

Master Thesis	Modular Arbitrary Shader System	February–June 2006
	Upper Austria University of Applied Sciences

 

·         Implemented a shader connection and combination tool.

·         Included XML-based directed acyclic graph logic.

·         Relied on Cg's shader interfaces and unsized array features.

·         Developed several example shaders including Phong lighting model, bump mapping, and dispersion (refraction + reflection) effect.

  

Directed Focus Study	Variance Shadow Mapping	March–May 2008
	The Guildhall at SMU

 

·         Implemented and compared several shadow mapping techniques, including basic shadow maps for spotlights and percentage closer-filtered (PCF) soft shadow maps.

·         Developed variance shadow mapping to improve the softening of edges.

·         Created a demo to showcase and compare the different techniques.

 

Sole Developer	3D Rendering Engine	September 2007–June 2008
	The Guildhall at SMU

 

·         Created an abstract interface for Direct3D and OpenGL APIs.

·         Implemented synonymous HLSL and GL assembly shaders for per-pixel lighting, DOT3 bump mapping, parallax mapping, and character animation.

·         Developed a custom math library (2D and 3D vectors, matrices, quaternions, intersection tests) as well as view-frustum culling capabilities.

·         Programmed a file loader for BSP levels (textures, lightmaps, PVS culling), .3ds model files, and a 3D Studio Max exporter incl. a custom, chunk-based file format.

·         Wrote a patch-based levels-of-detail terrain system.

 

Sole Developer	Interpreted Scripting Language	March–May 2008
	The Guildhall at SMU

 

·         Wrote a grammar for a C-like, weak-typed language.

·         Implemented a lexical analyzer, tokenizer, and parser creating an abstract syntax tree.

·         Built a compiler for generating custom byte-code and a stack-based virtual machine for interpreting it.

·         Features included built-in vectors, arrays, and recursive function calls.

 

Programming Skills

Languages				C/C++, C#, Java, UnrealScript, Cg, HLSL, Ruby, HTML, PHP, JSP, and LaTeX.
APIs	Direct3D, OpenGL, FMOD, 3ds Max SDK, Win32, GDI/GDI+, OGRE, and ODE.
Graphics			BSP, animation, lighting, shaders, and scene graphs.
Physics		Newtonian dynamics, collision detection and response, numerical integration (Forward / Backward Euler, Velocity Verlet, Runge-Kutta), spring-mass systems, rigid body dynamics.
Software Engineering						Object-oriented and agile development, design patterns, debugging, and game development on embedded systems.
Applications					Microsoft Visual Studio 2003/2005, Adobe Photoshop and ImageReady, Autodesk 3D Studio Max and Maya, Subversion, Mercurial, and Microsoft Windows.

 

Language Skills

Mother tongue: Slovak. Perfect in English and German.

 

Education

The Guildhall at SMU	Dallas, TX, USA
Masters of Interactive Technology (GPA 3.96) specialization in Software Development	December 2008
Upper Austria University of Applied Sciences	Hagenberg, Austria
Graduated with distinction from Digital Media (GPA 3.56) (Master of Science in Engineering, specialization in Computer Games)	2004 - 2006
Upper Austria University of Applied Sciences	Hagenberg, Austria
Graduated with distinction from Media Technology and Design (GPA 3.38)	2001 - 2004
(Bachelor of Science in Engineering)