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Mateusz Wasilewski

PROFILE

Mateusz Wasilewski

Mateusz Wasilewski engineered core features and infrastructure improvements across the o3de/o3de and RobotecAI/o3de-extras repositories, focusing on graphics, build systems, and robotics integration. He refactored light culling logic and shader code in C++ and HLSL to improve rendering performance and correctness for various camera types, and centralized trajectory state management to enhance maintainability in robotics modules. Mateusz also automated asset build logging and prefab template reloads, streamlining developer workflows. His work on CI/CD pipelines and CMake-based build configuration reduced test flakiness and improved cross-platform reliability, demonstrating depth in performance optimization, asset management, and robust software architecture.

Overall Statistics

Feature vs Bugs

75%Features

Repository Contributions

10Total
Bugs
2
Commits
10
Features
6
Lines of code
628
Activity Months6

Work History

October 2025

1 Commits • 1 Features

Oct 1, 2025

October 2025: Delivered automation for prefab template reload on catalog changes in o3de/o3de. Implemented automatic reload of procedural prefab templates when they are created or modified, by exposing ReloadTemplateFromFile in PrefabLoaderInterface and invoking it from ProceduralPrefabSystemComponent upon catalog asset changes, ensuring prefab updates propagate without manual intervention.

July 2025

2 Commits • 2 Features

Jul 1, 2025

July 2025 focused on improving CI/CD efficiency and build reliability across two core repositories: o3de/o3de and RobotecAI/o3de-extras. Delivered granular, multi-platform build controls for GitHub Actions and performed a targeted cleanup of ROS2.Frame.Tests dependencies. These changes reduce unnecessary builds, speed up feedback loops, and simplify maintenance, reinforcing faster, more reliable feature delivery and bug fixes.

May 2025

1 Commits

May 1, 2025

May 2025 monthly summary for RobotecAI/o3de-extras focusing on stabilizing the test environment for SimulationInterfaces tests by declaring runtime dependencies in CMakeLists to improve reliability and CI stability.

April 2025

3 Commits • 1 Features

Apr 1, 2025

April 2025 monthly summary for o3de/o3de focusing on key features delivered, bugs fixed, and business impact. Delivered real-time asset build logging and targeted build-system optimizations to accelerate iteration, reduce wasted compute, and improve feedback loops for developers. Implemented selective test activation and common test utilities to streamline monolithic builds and enhance SDK testing.

February 2025

1 Commits • 1 Features

Feb 1, 2025

February 2025 focused on performance-oriented feature work in the o3de/o3de repository. Delivered Light Culling and AABB Intersection Improvements, including refactoring of light culling logic, renaming AABB extents to aabbHalfExtents across shaders, and introducing a new function TestAabbVsLightHemisphere. These changes, validated by commit ad4bffc24d1e3a678583deaf8add32a0f42b8149 with the message 'Improve light culling for Disk and Spot Lights (#18526)', reduce unnecessary Disk/Spot/Point light versus geometry tests and improve rendering throughput in scenes with many lights. No explicit bug fixes were recorded this month; the emphasis was on correctness, maintainability, and performance scalability. Overall business value comes from faster frame times, better scalability for complex scenes, and more stable shader logic. Technologies/skills demonstrated include C++ shader integration, cross-module refactoring, clear naming conventions, and strong commit traceability.

December 2024

2 Commits • 1 Features

Dec 1, 2024

December 2024 performance summary: Delivered reliability and maintainability improvements across two repositories. In o3de/o3de, resolved orthographic camera light culling issues by refactoring tile bounding box calculations and updating shader usage to apply view and projection matrices correctly, ensuring consistent light culling across camera projection types. In RobotecAI/o3de-extras, completed a trajectory state management refactor that centralizes joint trajectory goal state handling by moving the logic from FollowJointTrajectoryActionServer to JointsTrajectoryComponent, improving maintainability and reducing redundant state tracking. These changes reduce edge-case bugs, improve visual fidelity and trajectory reliability, and streamline future feature work across the platform.

Activity

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Quality Metrics

Correctness89.0%
Maintainability86.0%
Architecture84.0%
Performance81.0%
AI Usage20.0%

Skills & Technologies

Programming Languages

C++CMakeHLSLYAMLcmake

Technical Skills

3D MathAsset ManagementBuild SystemBuild System ConfigurationBuild SystemsC++CI/CDCMakeCode CleanupGitHub ActionsGraphics ProgrammingPerformance OptimizationROS2ROS2 IntegrationRobotics

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

o3de/o3de

Dec 2024 Oct 2025
5 Months active

Languages Used

C++HLSLCMakecmakeYAML

Technical Skills

3D MathC++Graphics ProgrammingShader DevelopmentPerformance OptimizationBuild System

RobotecAI/o3de-extras

Dec 2024 Jul 2025
3 Months active

Languages Used

C++CMake

Technical Skills

C++ROS2RoboticsSoftware ArchitectureBuild SystemsCMake

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