Ruyi Bao

About

Real-time 3D/C++ developer with hands-on engine-level systems work, including a 3D positional audio/Doppler pipeline stabilized against frame-rate jitter via fixed-timestep + interpolation architecture. Built a runnable 3D engine project featuring custom collision detection/response (AABB, SAT, sphere) with unit and edge-case testing, and has UE5 multiplayer movement experience implementing a custom sprint mode using Character Movement (SavedMove, intent prediction).

Experience

Education

Key Strengths

• Diagnoses and stabilizes real-time audio issues caused by frame-rate instability (Doppler jitter) using smoothing and decoupled timing
• Strong understanding of fixed vs variable timestep synchronization; uses render-interpolated state to prevent audio/physics desync
• UE5 Character Movement customization (custom sprint via MOVE_Custom + PhysCustom) with multiplayer considerations
• Networked movement approach focused on predicting intent and using SavedMove to keep inputs consistent
• Implements collision detection/response using SAT, AABB, sphere tests with performance-minded math (squared distances)
• Validates engine/math-heavy systems with unit tests and boundary/edge-case scenarios
• Movement feel tuning using measurable targets (e.g., ~0.3s 0-to-max acceleration time) rather than purely subjective iteration