Roman Kuznetsov, PhD
Experienced Software Engineer in C++ and Rendering.
Career
Meta
London, United Kingdom
Software Engineer
Dec, 2020
Dec, 2020 - Present
▼ More...
- Developing rendering technologies for Meta Reality Labs.
Mapbox
Minsk, Belarus
Senior Software Engineer
Nov, 2019
Nov, 2019 - Nov, 2020
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- Designed and developed rendering engine for Mapbox Vision SDK (OpenGL ES3, Metal);
- Developed rendering algorithms for AR, patented “Rendering Augmented Reality with Occlusion”;
- Developed
mapbox-gl-nativerendering engine for maps (3D terrain rendering and other features).
VK (former Mail.Ru Group)
Moscow, Russia
Senior Software Engineer / Tech Lead
Mar, 2015
Mar, 2015 - Nov, 2019
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- Developed rendering engine (OpenGL ES2, OpenGL ES3, Metal, Vulkan) in C++ for MAPS.ME project, offline maps for iOS and Android;
- Was a tech lead in MAPS.ME product team, was responsible for rendering and core C++ libraries, set up technical direction for product in collaboration with iOS and Android tech leads;
- Implemented multiple systems for client-server communication (bookmarks cloud backup, real time analytics, travel guides synchronization);
- Profiled and optimized performance of MAPS.ME that was able to fully work on low-capable devices.
Alawar
Novosibirsk, Russia
Senior Software Engineer / Technical Producer
Nov, 2012
Nov, 2012 - Sep, 2014
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- Developed internal tools in C++ and C# to support game publishing business of Alawar;
- Developed common game libraries for game studios publishing games in Alawar;
- Developed games for iOS and Android in internal studios of Alawar (Montezuma Blitz, Farm Frenzy and Friends, Epic Forces and others);
- Technically produced games of external and internal game studios working with Alawar (audit, code review, consultations).
Forward Development (former Multisoft)
Novosibirsk, Russia
Junior/Middle Software Engineer
Nov, 2007
Nov, 2007 - Nov, 2012
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- Improved, maintained and optimized rendering engine (based on Nebula 2 Engine);
- Implemented rendering algorithms (soft shadows, postprocessing, sky rendering, rain and snow rendering, realtime reflections and others);
- Integrated Direct3D 11 renderer and multi-screen rendering;
- Developed new world editor on C# and Ogre3D.
Projects
All
OpenGL
Metal
Vulkan
DirectX
Unity
CUDA
Skills
Programming Languages
C++
Expert
Java
Advanced
Objective-C
Advanced
C#
Intermediate
Swift
Intermediate
Python
Basic
TypeScript
Basic
Kotlin
Basic
Graphics API
OpenGL
Expert
Metal
Advanced
DirectX
Advanced
Vulkan
Intermediate
SPIR-V
Intermediate
CUDA
Intermediate
Engines
Unity
Intermediate
Ogre3D
Intermediate
Unreal Engine
Intermediate
Others
CMake
Advanced
React
Basic
PostgreSQL
Basic
MongoDB
Basic
OpenCV
Basic
Academic
Doctor of Philosophy in Computer Science
2013
Degree
Thesis: "Digital holography in industrial non-destructive measurement systems"
Digital HolographyImage ProcessingParallel Computing
Engineer in Computer Systems and Networks
2010
Degree
Thesis: "Realistic 3D rendering of natural effects in real time"
Computer GraphicsImage ProcessingParallel Computing
Bachelor of Engineering in Computer Science
2009
Degree
Thesis: "Educational framework WebTransLab for compiler development"
CompilersAlgorithmsData StructuresSystem ProgrammingMicroprocessorsNetworks
Algorithmic Toolbox Course
2018
Certificate
The course covers algorithmic techniques for computational problems arising frequently in practical applications: sorting and searching, divide and conquer, greedy algorithms, dynamic programming.
AlgorithmsData Structures
Assistant lecturer
from 2011 to 2012
Teaching
"Java Programming" course
Visiting professor
from 2016 to 2017
Teaching
"С++ Programming" course
Publications
29 Mar, 2022
United States Patent
RENDERING AUGMENTED REALITY WITH OCCLUSION
Patent
Abstract
AR elements are occluded in video image frames. A depth map is determined for an image frame of a video received from a video capture device. An AR graphical element for overlaying over the image frame is received. An element distance for AR graphical elements relative to a position of a user of the video capture device (e.g., the geographic position of the video capture device) is also received. Based on the depth map for the image frame, a pixel distance is determined for each pixel in the image frame. The pixel distances of the pixels in the image frame are compared to the element distance, and in response to a pixel distance for a given pixel being less than the element distance, the pixel of the image frame is displayed rather than a corresponding pixel of the AR graphical element.
AR elements are occluded in video image frames. A depth map is determined for an image frame of a video received from a video capture device. An AR graphical element for overlaying over the image frame is received. An element distance for AR graphical elements relative to a position of a user of the video capture device (e.g., the geographic position of the video capture device) is also received. Based on the depth map for the image frame, a pixel distance is determined for each pixel in the image frame. The pixel distances of the pixels in the image frame are compared to the element distance, and in response to a pixel distance for a given pixel being less than the element distance, the pixel of the image frame is displayed rather than a corresponding pixel of the AR graphical element.
Publication language: EN
ARRenderingOcclusion
13 Dec, 2018
habr.com
Apple Metal in MAPS.ME
Article
Abstract
In the article, the integration of Apple Metal into the MAPS.ME project is described. The difference between Metal and OpenGL ES and their place in the MAPS.ME rendering engine
In the article, the integration of Apple Metal into the MAPS.ME project is described. The difference between Metal and OpenGL ES and their place in the MAPS.ME rendering engine
Drape is considered. The results of frame rate and power consumption analysis for Metal in comparison with OpenGL ES are given.Publication language: RU
MetalOpenGL ESRendering
19 Feb, 2018
habr.com
Traffic congestion rendering evolution in MAPS.ME
Article
Abstract
The traffic congestion visualization on the map is a complex engineering task including data collection, aggregation, compression and rendering. In the article, the rendering of the traffic congestion over the map in the MAPS.ME project is considered. The rendering technique is described, tradeoffs between frame rate and memory consumption are presented, the key metrics and results are given.
The traffic congestion visualization on the map is a complex engineering task including data collection, aggregation, compression and rendering. In the article, the rendering of the traffic congestion over the map in the MAPS.ME project is considered. The rendering technique is described, tradeoffs between frame rate and memory consumption are presented, the key metrics and results are given.
Publication language: RU
Digital mapsTraffic congestionRendering
23 Sep, 2015
habr.com
Navigation data rendering in MAPS.ME
Article
Abstract
In the article, the navigation data rendering over the map in the MAPS.ME project is considered. The rendering techniques for route, maneuvers directions, route clipping in OpenGL ES are presented.
In the article, the navigation data rendering over the map in the MAPS.ME project is considered. The rendering techniques for route, maneuvers directions, route clipping in OpenGL ES are presented.
Publication language: RU
Digital mapsNavigationRenderingOpenGL ES
07 Sep, 2015
habr.com
Global Illumination in custom shaders in Unity 5
Article
Abstract
In the article, the Global Illumination integration into custom shaders in Unity 5 game engine is considered. At first, the process of creating a custom surface shader is given, a custom PBR shader using Cook-Torrance lighting model is introduced. Then integration with the Unity Global Illumination system is presented. In conclusion, rendering results are demonstrated.
In the article, the Global Illumination integration into custom shaders in Unity 5 game engine is considered. At first, the process of creating a custom surface shader is given, a custom PBR shader using Cook-Torrance lighting model is introduced. Then integration with the Unity Global Illumination system is presented. In conclusion, rendering results are demonstrated.
Publication language: RU
Global IlluminationPBRShadersUnityRenderingGame Development
21 Jul, 2015
habr.com
Rendering engine architecture in MAPS.ME
Article
Abstract
In the article, the architecture of the rendering engine
In the article, the architecture of the rendering engine
Drape in the MAPS.ME project is presented. The following features are covered: multi-context OpenGL ES rendering on Android and iOS; asynchronous geometry preparation; K-d tree application; SDF text rendering.Publication language: RU
Digital MapsRenderingOpenGL ESK-d treeSDF
26 Jan, 2015
habr.com
Rendering in Apple Metal: Basics
Article
Abstract
In the article, the basics of rendering using Apple Metal are given. Initialization of an application, creation of
In the article, the basics of rendering using Apple Metal are given. Initialization of an application, creation of
Metal Device, interaction with Core Animation framework, basic rendering API, synchronization and multi-threaded rendering are considered.Publication language: RU
MetalRenderingObjective-CCore AnimationMulti-threaded rendering
05 Jul, 2014
habr.com
Fur rendering using Shells and Fins algorithm
Article
Abstract
In the article, fur rendering using Shells and Fins algorithm is described. At first, the algorithm using geometry shaders is presented. Then the difference between DirectX 11 and OpenGL 4.3 implementations is considered. In conclusion the results of frame rate in DirectX 11 in comparison with OpenGL 4.3 are given.
In the article, fur rendering using Shells and Fins algorithm is described. At first, the algorithm using geometry shaders is presented. Then the difference between DirectX 11 and OpenGL 4.3 implementations is considered. In conclusion the results of frame rate in DirectX 11 in comparison with OpenGL 4.3 are given.
Publication language: RU
OpenGL 4DirectX 11Shells and FinsGeometry shaders
20 Jun, 2014
habr.com
Rendering shadows using Parallel-Split Shadow Mapping algorithm
Article
Abstract
In the article, Parallel-Split Shadow Mapping (PSSM) algorithm is described. At first, the basic shadow mapping approach is reviewed. Then PSSM is presented; the difference between DirectX 11 and OpenGL 4.3 implementations is considered. After that issues and limitations of the algorithm are discussed. In conclusion the results of frame rate in DirectX 11 in comparison with OpenGL 4.3 are given.
In the article, Parallel-Split Shadow Mapping (PSSM) algorithm is described. At first, the basic shadow mapping approach is reviewed. Then PSSM is presented; the difference between DirectX 11 and OpenGL 4.3 implementations is considered. After that issues and limitations of the algorithm are discussed. In conclusion the results of frame rate in DirectX 11 in comparison with OpenGL 4.3 are given.
Publication language: RU
OpenGL 4DirectX 11Shadow mappingPSSM
27 May, 2014
habr.com
Order-Independent Transparency using linked lists in Direct3D 11 and OpenGL 4
Article
Abstract
In the article, Order-Independent Transparency using linked lists algorithm is described. At first, Order-Independent Transparency algorithms are reviewed. Then the linked lists approach is presented; the difference between DirectX 11 and OpenGL 4.3 implementations is considered. After that issues and limitations of the algorithm are discussed. In conclusion the results of frame rate in DirectX 11 in comparison with OpenGL 4.3 are given.
In the article, Order-Independent Transparency using linked lists algorithm is described. At first, Order-Independent Transparency algorithms are reviewed. Then the linked lists approach is presented; the difference between DirectX 11 and OpenGL 4.3 implementations is considered. After that issues and limitations of the algorithm are discussed. In conclusion the results of frame rate in DirectX 11 in comparison with OpenGL 4.3 are given.
Publication language: RU
OpenGL 4DirectX 11OIT
28 Feb, 2014
habr.com
Facebook SDK for mobile free-to-play games on iOS
Article
Abstract
In the article, the integration of Facebook SDK to mobile free-to-play games on iOS is considered. The following technical details and the corresponding Objective-C code are presented: reaching out player’s friends from the game, posting to the timeline.
In the article, the integration of Facebook SDK to mobile free-to-play games on iOS is considered. The following technical details and the corresponding Objective-C code are presented: reaching out player’s friends from the game, posting to the timeline.
Publication language: RU
Facebook SDKiOSfree-to-play
06 Sep, 2013
habr.com
5 problems in development of mobile free-to-play games
Article
Abstract
In the article, 5 main problems in the development of mobile free-to-play games are considered. They are cross-platform work, package binary size, RAM usage, client-server interaction, performance. Some piece of advice and experience of Alawar is given.
In the article, 5 main problems in the development of mobile free-to-play games are considered. They are cross-platform work, package binary size, RAM usage, client-server interaction, performance. Some piece of advice and experience of Alawar is given.
Publication language: RU
Free-to-playCross-platformGame enginesClient-server
04 Aug, 2013
Academpark Summer School
Game Development in C++: theory and practice
Conference
Abstract
In this lecture, game development in C++ is considered. Firstly, the architecture of a game is presented. Then the organization of C++ code, inheritance, polymorphism, templates, memory allocation, error handling and most useful design patterns are discussed. Some causes for the code overcomplication are given as well as practical recipes for avoiding it.
In this lecture, game development in C++ is considered. Firstly, the architecture of a game is presented. Then the organization of C++ code, inheritance, polymorphism, templates, memory allocation, error handling and most useful design patterns are discussed. Some causes for the code overcomplication are given as well as practical recipes for avoiding it.
Publication language: RU
C++Game Development