Injects seed-dependent low-frequency phase from initial noise into the
model's denoised prediction at step 0 via post-CFG hook. Different seeds
produce different compositions instead of identical layouts.
Key features:
- Slerp phase rotation with shared rotation field (zero color artifacts)
- 6th-order Butterworth LPF (steep composition/object frequency separation)
- Per-bin tanh rotation budget (decouples diversity from tail risk)
- High-frequency attenuation (prevents frequency shearing on distilled models)
- Optional energy compensation
- LTXAV video format compatible
