ComfyUI Node
FL LTX Motion Boost
Single-knob motion control for LTX-Video. motion_intensity adjusts the conditioning frame_rate to widen/narrow temporal RoPE gaps (the primary motion lever). decode_noise/decode_timestep control VAE-side per-frame stochasticity.
FL LTX Motion Boost
- positive
- negative
- vae
- positive
- negative
- vae
◄motion_intensity0.50►
◄decode_noise0.025►
◄decode_timestep0.050►
◄base_frame_rate25►
◄override_frame_rate-1►
CategoryFL LTX Tools/Motion
Inputs (8)
| Name | Type | Default | Description |
|---|---|---|---|
| positive | CONDITIONING | — | |
| negative | CONDITIONING | — | |
| vae | VAE | — | |
| motion_intensity | FLOAT | 0.500–1 | 0.0 = static (no motion boost), 0.5 = balanced default, 1.0 = maximum motion (lowers frame_rate ~60%). |
| decode_noise | FLOAT | 0.0250–0.5 | VAE decode noise scale. Adds organic per-frame stochasticity. 0.025 is the LTX default. Higher = more textural noise + smoother motion. |
| decode_timestep | FLOAT | 0.0500–0.5 | VAE decode noise timestep. 0.05 is the LTX default. |
| base_frame_rateopt | INT | 256–60 | Reference fps before motion_intensity scaling. Final fps = base_frame_rate * (1.0 - motion_intensity * 0.6). |
| override_frame_rateopt | INT | -1-1–60 | If >= 6, sets the conditioning frame_rate explicitly and ignores motion_intensity for this lever. -1 = auto. |
Outputs (3)
| Name | Type | Description |
|---|---|---|
| positive | CONDITIONING | — |
| negative | CONDITIONING | — |
| vae | VAE | — |