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Robin Liu

PROFILE

Robin Liu

Over a two-month period, this developer contributed to both the google/perfetto and androidx/androidx repositories, focusing on advanced graphics and performance tooling. They delivered a configurable GPU render stages capture feature for Perfetto, introducing a Protocol Buffers-based configuration to enable granular GPU metric tracing and reduce overhead, while integrating vendor-specific optimizations and updating build documentation. In AndroidX, they implemented an interactive 3D cube that responds to touch gestures, showcasing gesture-driven 3D rendering with Remote Compose integration. Their work leveraged Kotlin, Protocol Buffers, and 3D graphics expertise, emphasizing performance profiling, build system configuration, and enhanced user interaction within Android applications.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

3Total
Bugs
0
Commits
3
Features
2
Lines of code
470
Activity Months2

Your Network

5951 people

Shared Repositories

797
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Jorim JaggiMember
Abhijith NairMember
Abhijith NairMember
Abhijoy SahaMember

Work History

May 2026

1 Commits • 1 Features

May 1, 2026

May 2026: Delivered a touch-driven Interactive 3D Cube feature in androidx/androidx, enabling users to rotate a 3D cube via touch gestures. This expands interactive UI capabilities and demonstrates end-to-end gesture-driven 3D rendering with Remote Compose integration. Implemented 3D transforms and gesture handling, updated related demos, and validated through building player-view-demos-debug.apk and on-device verification. The work included addressing bug 515445018 during integration. This delivers tangible UX enhancements and strengthens AndroidX's 3D/graphics tooling, providing business value by showcasing advanced interactions to developers and end users.

January 2025

2 Commits • 1 Features

Jan 1, 2025

January 2025 monthly summary for google/perfetto: Delivered Configurable GPU Render Stages Capture to enable lightweight captures. Introduced GpuRenderStagesConfig proto and integrated into builds and configs, providing granular control over which GPU metrics to trace. This reduces tracing overhead and improves performance. Key work included integrating Qualcomm changes (commits 6213ff5e691b1e5d85112c20c5d3292282cf2a81 and 1a6b20cf46c1b7b7b2f030db142316d6cf5f1bf2), aligning with hardware vendor optimizations. The changes position Perfetto for production use with more flexible tracing. Cross-team collaboration and documentation updates supported smoother deployment and adoption.

Activity

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Quality Metrics

Correctness86.6%
Maintainability80.0%
Architecture86.6%
Performance73.4%
AI Usage20.0%

Skills & Technologies

Programming Languages

Kotlingnprotoprotobuf

Technical Skills

3D GraphicsAndroid DevelopmentBuild system configurationGPU profilingGPU tracingPerformance analysisProtocol BuffersUI/UX Designperformance profilingprotocol buffers

Repositories Contributed To

2 repos

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

google/perfetto

Jan 2025 Jan 2025
1 Month active

Languages Used

gnprotoprotobuf

Technical Skills

Build system configurationGPU profilingGPU tracingPerformance analysisProtocol Buffersperformance profiling

androidx/androidx

May 2026 May 2026
1 Month active

Languages Used

Kotlin

Technical Skills

3D GraphicsAndroid DevelopmentUI/UX Design