Module heijunka 

Heijunka (平準化) - Time-budget load leveling.

Implements Toyota’s Heijunka principle for consistent frame delivery:

• Time-budget per frame (16ms target for 60 FPS)
• Graceful quality degradation when budget exceeded
• Prevents Mura (unevenness) from O(N²) computation

Design Philosophy

Rather than dropping frames or stuttering, Heijunka reduces simulation fidelity (substeps) to maintain consistent visual delivery.

References

[34] Liker, “The Toyota Way,” McGraw-Hill, 2004.

Structs

FrameResult

Result of a Heijunka frame execution.

HeijunkaConfig

Heijunka scheduler configuration.

HeijunkaScheduler

Heijunka scheduler for load-leveled simulation.

HeijunkaStatus

Heijunka status for visualization.

Enums

QualityLevel

Quality level for adaptive degradation.