Patrik Schiller - Computer graphics developer: Personal portfolio

About me

I am years old Computer Graphics developer based in Prague, Czech Republic. In 2022, I successfully finished my master's degree in computer graphics at the Czech Technical University (CTU), Faculty of Electrical Engineering. In 2020 I finished bachelor's degree in Software engineering at CTU FEE.

I am deeply passionate about IT, Computer Graphics, programming, drawing, and architecture. Starting from Q2 2019, my primary areas of focus have revolved around CG programming, including proficiency in OpenGL & C++, WebGL & JavaScript/TypeScript. Moreover, I have dedicated myself to 3D assets development using tools like Autodesk Maya and Blender, complemented by some valuable experience in game development with Unreal Engine.

Work experience

Windy.com (2023 - Present)

WebGL Developer
Tech stack: WebGL, GLSL, TypeScript
https://www.windy.com/

Freelance Software Developer (2022 - Present)

Computer Graphics Developer
Tech stack: JavaScript, TypeScript, WebGL

Conquest Entertainment a.s. (2018 - Present)

E-shop system administrator and developer
Tech stack: PHP, Smarty, MySQL, JavaScript, XML, HTML, CSS
Experience with B2B integration - Google campaigns (XML feeds), Mall.cz (REST API)
http://b2b.cqe.cz/

Center for Knowledge Management - CTU FEE (May 2020 - December 2020)

Developer and administrator of scholar system Moodle
Tech stack: PHP, JavaScript, PostgreSQL, RabbitMQ
https://czm.fel.cvut.cz/en/

Education

Ing./ CTU FEE, Open Informatics - Computer Graphics, Prague (2020-2022)

Comprehensive study of the essentials of computer graphics
Rendering algorithms & Data structures, Computer Vision geometry, Data Visualization techniques, Advanced OpenGL programming, Computational Geometry
Experience with: RayTracing, BVH, 3D scene reconstruction (epipolar geometry), Combinatorial Optimization, Image Editing algorithms etc.
Master's thesis: Rendering for virtual reality in high resolution using measured BTF data

Bc./ CTU FEE, Software Engineering and Technologies, Prague (2017-2020)

Design and implementation of enterprise systems
Bachelor's thesis: Interactive web application for learning computer graphics programming

Skills

Computer graphics

OpenGL 4.5, WebGL 1.0 & 2.0, GLSL
Experience with CUDA & OpenCL
Experience with Global Illumination algorithms (RayTracing, PathTracing, Radiosity, Photon maps etc.), acceleration Data Structures for ray traversing, and various BRDF models
Autodesk Maya, Blender
Unreal Engine

Web development

HTML5, CSS3, JavaScript ES6+, TypeScript
PHP, MySQL
React.js, Node.js
Enterprise Java, Spring

Programming

Frequently used languages: TypeScript, C++, JavaScript ES6+
Other languages: PHP, Java, Python, C#
Design patterns
VCS GitLab / GitHub

Other skills & interests

LaTex (Overleaf)
Linear algebra, Mathematic analysis
Drawing, Architecture
Adobe Premiere, Photoshop, After Effects

Selection of personal & school projects

Minecraft-like interactive world generator in UE5 (2023)
- Project for my internship at Studio301
- Focused on real-time mesh generation using Realtime Mesh Component
- Dynamically generated & fully modifiable world (block placement and destruction), chunk (un)loading system, random terrain generation using Perlin noise, biomes, lakes, caves, ores, vegetation, and more
- C++, Unreal Engine 5, Realtime Mesh Component (RMC)

Master's Thesis - Rendering for virtual reality in high resolution using measured BTF data (2022)

Supervised by prof. Ing. Vlastimil Havran, Ph.D.
Interactive VR application that enables examination of visual properties of various materials defined by compressed BTF data, designed for high resolution VR headset XTAL 8K
C++, OpenGL 4.5, GLSL, CUDA, OpenCL, VR XTAL 8K, Nintendo Wiimote
Stereoscopic 2x 4K rendering, Progressive environment map IBL, Deferred shading, BTF real-time decompression and rendering
Thesis text & reviews accesible at: CTU DSpace

Rectilinear Texture Warping for Fast Adaptive Shadow Mappings - paper reimplementation (2022)
- Semester work for course of Computer Graphics Programming 2
- Implementation of algorithm for adaptive shadow mapping («Paper»)
- C++ & OpenGL 4.5
3D model of EMU 460 (2021)
- Semester work for course of Creation of Graphics Content
- Blender
Library for image editing (2021)
- Semester work for course of Advanced Interactive Image Manipulation
- Implementation of Monadic operations (Negative, Contrast, Brightness, Gamma correction, Histogram equalization), Fourier transformation (using FFTW library), Convolution, Bilateral filter, Image stitching in gradient domain
- C++, FFTW library
Visualization of hurricane Isabel (2021)
- Semester work in cooperation with Ing. Vojtěch Cimbura
- JavaScript ES6+, THREE.js
Acceleration data structure for ray-shooting algorithms - Bounding Volume Hierarchy (2020)
- Semester work for course of Data Structures for CG
- «Paper» reimplementation
- C++, SIMD (SSE)
- Scientific-like paper in czech language: PDF
Rasterization and Raytracing library (2020)
- Semester work in cooperation with Bc. Oldřich Milec
- C++, Software (CPU) renderer
Bachelor's Thesis - SPA for education of computer graphics programming (2020)
- Supervised by Ing. Petr Felkel, Ph.D.
- JavaScript ES6+, WebGL 2.0, GLSL, HTML5, CSS3, React.js, PHP, MySQL
- Visit the application HERE (only in czech)
- Thesis text & reviews accesible at: CTU DSpace
THREE.js Drag&Drop renderer (2020)
- Semester work for course of Advanced Web Technologies
- JavaScript, THREE.js (WebGL), HTML5, CSS3
- «Link»
Sci-fi spacestation 3D scene (2019)
- Semester work for course of 3D modeling
- Autodesk Maya
Alien-like 3D application/game (2019)
- Semester work for course of Computer Graphics Programming
- C++, OpenGL, GLSL