Eiren Rain
Founder at SlimeVR
Netherlands
Summary
🤩
RockstarEiren Rain is a founder and hands-on software engineer with 12 years of experience building games, servers, and open-hardware for VR from the Netherlands. He founded SlimeVR, an open-source full-body tracking project that combined PCB and enclosure design, firmware, software and a supply chain—raising over $900k via crowdfunding and rallying thousands of contributors and backers. Prior to SlimeVR he led development of large-scale game projects including Elteria Adventures and one of Russia’s earliest major Minecraft servers, shipping core server architectures and tooling in Java. An active open-source contributor, he improved asset import and sensor-processing pipelines in projects like jMonkeyEngine and SlimeVR-Server, bridging low-level data handling with practical build workflows. Eiren champions open hardware and software to make VR more affordable and accessible, and unusually blends deep systems work with community-driven product delivery.
12 years of coding experience
10 years of employment as a software developer
English, Russian
Stackoverflow
345reputation
62kreached
4answers
5questions
Github Skills (23)
game-engine10
game-dev10
file-parsing10
java10
javas10
3d-models10
jmonkeyengine10
game-development10
named-pipes10
gradle9
gradlew9
algorithm7
algorithms7
data-structure7
data-structures7
Programming languages (10)
Github contributions (5)
SlimeVR/SlimeVR-Server
Jan 2021 - Jan 2023
Server app for SlimeVR ecosystem
Role in this project:
Back-end Developer
Back-end DeveloperContributions:35 releases, 529 reviews, 318 commits in 2 years
Contributions summary:Eiren's commits primarily focused on setting up the project's build environment and implementing core VR bridge functionality. They set up the Gradle and Eclipse project structure and added a batch file. The user moved the VR bridge code from the test project and added a named pipe VR bridge class for handling tracker data. They also implemented and modified classes related to sensor data processing.
imusd-cardvirtual-realityserver-apprc
jMonkeyEngine/jmonkeyengine
Apr 2014 - Apr 2016
A complete 3-D game development suite written in Java.
Role in this project:Back-end Developer
Back-end DeveloperContributions:10 commits, 2 PRs, 17 comments in 2 years
Contributions summary:Eiren primarily contributed to the FBX file importer within the JMonkeyEngine game engine. Their work involved implementing FBX file parsing, fixing bugs related to texture loading with absolute image paths, and addressing issues with geometry loading. They also reworked the original FBX importer to improve its functionality and address compatibility issues. These changes enhanced the engine's ability to import and utilize FBX files, improving the overall asset import pipeline.
jme3jmonkeyengine3gamegame-developmentjava
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