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Introducing OSC2 Studio v0.0.2 — Smarter Execution, Better Preview

· 2 min read
OSC2 Studio Team
OSC2 Studio Team
Development Team

This release focuses on stabilizing vehicle control in the execution engine, alongside important frontend updates.

Execution Engine — More Reliable Vehicle Control​

v0.0.2 brings key improvements to several drive action modifiers:

  • Change lane (change_lane): No longer relies on the internal tracing system — lane changes are handled directly and more reliably. The simulation engine now supports smooth lane changes with no instant jumps.
  • Speed: Fixed a calculation anomaly in the dynamic solver and added safety strategies to prevent unrealistic speed values.
  • Position: Now supports specifying following distance by time (time: parameter) — distance is automatically calculated based on vehicle speed at runtime.
  • Road selection: Random road selection has been replaced with iterative verification, preventing placement failures on roads that are too short.
  • Cross-road distance: New cross-road distance calculation eliminates distance errors when vehicles change lanes across road boundaries.

Initial vehicle placement has also been improved — when multiple vehicles maintain following distances, the system performs a holistic analysis of all constraints to ensure every vehicle gets a valid position.

Frontend — Landing Page Restructure​

The frontend now supports a three-entry-point structure:

  • English landing page / — default entry
  • Chinese landing page /zh/ — for Chinese-speaking users
  • Application page /app/ — the main editor

The default language has been switched from Chinese to English. Language preference is remembered automatically across visits.

Performance — Faster Page Load​

This release also brings significant performance improvements that make the website load noticeably faster:

  • Efficient asset compression: All JavaScript, CSS, and static files are now compressed using one of the web's most efficient compression algorithms. File sizes are reduced by over 70%, so pages load in a fraction of the previous time.
  • Smaller demo videos: The demo videos on the landing page have been re-encoded, reducing file sizes by over 70% with no visible quality loss. Videos start playing faster, especially on slower connections.