System Updates
FEATUREv0.8.0

Beyond Unity: Rhythmic Multi-Simulation Mode

March was about complexity. We moved from single-world physics to a multi-simulation architecture, allowing for orchestral visual compositions.

DEV
FCG Dev
March 10, 2026

Why One Simulation Scaling is Not Enough

In early 2026, we realized that complex music (like orchestral or layered electronic tracks) needed more than one physics world. If a single boundary reacts to both the kick drum and the high-hats, it becomes chaotic. We needed a way to separate instruments into their own dedicated physics "islands."

The Multi-Simulation Engine

This month, we launched the "Multi-Sim" logic. This allows a creator to spawn multiple simulation containers on the same screen. Each container can have its own independent gravity, friction, ball count, and—most importantly—its own audio trigger.

Concurrent Physics Worlds: Run up to 4 separate simulations side-by-side or layered.
Instrument Mapping: Assign "Simulation A" to the Bass frequencies and "Simulation B" to the Melody.
Geometric Overlays: New visual dividers to help organize the screen into a professional "Visualizer" layout.
Space Spiral Mode: A new experimental mode focused on recursive, spiral-based gravity patterns.

Space Spiral: Mathematical Beauty

Along with Multi-Sim, we introduced the Space Spiral setting for the boundary. Instead of a simple circle, the boundary can now pulse in logarithmic patterns, creating a mesmerizing "rabbit hole" effect that pulls balls toward an infinite center. It is one of the most hypnotic modes we have ever developed.

""Visualizing a song isn't just about volume; it's about separation. By giving every instrument its own world, we allow the viewer to literally see the arrangement of the music.""

Layout Intelligence

With multiple simulations, screen real estate became precious. We added a new "Layout Sorting" panel that allows you to drag and resize different simulation islands, creating custom bento-grid layouts for your final exports.