Mathieu Lemarchand
Software Developer at MEGA International
Paris, Ile-de-France
Summary
🤩
Rockstar🎓
Top SchoolMathieu Lemarchand is a seasoned software developer with 16 years of experience, currently building solutions at MEGA International where he helps clients deploy and optimize the Hopex platform. Trained as an information systems engineer (CNAM) with formative experience at IGN, he combines solid C++, Java and PHP/Symfony skills with hands-on geospatial expertise and ETL/data quality work using FME. He contributes to prominent open-source 3D web graphics projects like three.js and iTowns, improving WebGL rendering, shader performance and support for geospatial formats such as GPX and KMZ. Comfortable across full-stack and visualization code paths, he brings a pragmatic blend of tooling, performance tuning and domain knowledge in geospatial systems.
16 years of coding experience
DUT, DUT at IUT de MontreuilNational Conservatory of Arts and CraftsStaffordshire University
French, English
Github Skills (17)
webgl10
threejs10
javascript10
parsing10
3d10
text-parsing10
visualization9
shader9
visualizations9
gis9
point-cloud9
html7
wms6
wfs6
vector-tiles5
Programming languages (7)
Github contributions (5)
iTowns/itowns
Feb 2016 - Sep 2022
A Three.js-based framework written in Javascript/WebGL for visualizing 3D geospatial data
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:24 commits, 20 PRs, 233 pushes in 6 years 7 months
Contributions summary:Mathieu refactored and reorganized code related to parsing and loading 3D geospatial data formats, specifically focusing on GPX, KMZ, and XBIL formats. They optimized shader code within the rendering engine. Further contributions included adapting the codebase to the Three.js v0.91 API, improving the handling of point cloud layers by adjusting materials and visible state management.
wmsthree-jsgispointcloudwebmapping
mrdoob/three.js
Jun 2018 - Aug 2022
JavaScript 3D Library.
Role in this project:Front-end Developer
Front-end DeveloperContributions:12 reviews, 7 commits, 19 PRs in 4 years 3 months
Contributions summary:Mathieu primarily focused on improving the three.js library's rendering capabilities and examples. Their contributions include supporting slash syntax in include directives for WebGL programs, correcting quaternion interpolation, optimizing camera matrix calculations, and adding support for Texture and CompressedTexture in copyTextureToTexture3D within the WebGLRenderer. They also implemented and refined functionality to support SpotLightMaps, which involved several updates to shaders, lights, and example files.
virtual-realitysvgwebglcanvasjavascript
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