ComfyUI Node
BIM-VFI Segment Interpolate
A ComfyUI node in video/BIM-VFI with 13 inputs and 3 outputs.
BIM-VFI Segment Interpolate
- images
- model
- settings
- images
- model
- elapsed_seconds
◄multiplier2►
◄clear_cache_after_n_frames10►
◄keep_devicetrue►
◄all_on_gpufalse►
◄batch_size1►
◄chunk_size0►
◄source_fps0.00►
◄target_fps0.00►
◄segment_index0►
◄segment_size500►
Categoryvideo/BIM-VFI
Inputs (13)
| Name | Type | Default | Description |
|---|---|---|---|
| images | IMAGE | Input image batch. Output frame count: 2x=(2N-1), 4x=(4N-3), 8x=(8N-7). | |
| model | BIM_VFI_MODEL | BIM-VFI model from the Load BIM-VFI Model node. | |
| multiplier | COMBO | 2 | Frame rate multiplier. 2x=one interpolation pass, 4x=two recursive passes, 8x=three. Higher = more frames but longer processing. |
| clear_cache_after_n_frames | INT | 101–100 | Clear CUDA cache every N frame pairs to prevent VRAM buildup. Lower = less VRAM but slower. |
| keep_device | BOOLEAN | true | Keep model on GPU between frame pairs. Faster but uses ~200MB VRAM constantly. Disable to free VRAM between pairs (slower due to CPU-GPU transfers). |
| all_on_gpu | BOOLEAN | false | Store all intermediate frames on GPU instead of CPU. Much faster (no transfers) but requires enough VRAM for all frames. Recommended for 48GB+ cards. |
| batch_size | INT | 11–64 | Number of frame pairs to process simultaneously. Higher = faster but uses more VRAM. Start with 1, increase until VRAM is full. Recommended: 1 for 8GB, 2-4 for 24GB, 4-16 for 48GB+. |
| chunk_size | INT | 00–10000 | Process input frames in chunks of this size (0=disabled). Bounds VRAM usage during processing but the full output is still assembled in RAM. To bound RAM, use the Segment Interpolate node instead. Result is identical to processing all at once. |
| source_fps | FLOAT | 0.000–1000 | Input frame rate. Required when target_fps > 0. |
| target_fps | FLOAT | 0.000–1000 | Target output FPS. When > 0, overrides multiplier and auto-computes a power-of-2 oversample up to 8x, then selects frames. 0 = use multiplier. |
| segment_index | INT | 00–10000 | Which segment to process (0-based). Bounds RAM by only producing this segment's output frames, unlike chunk_size which bounds VRAM but still assembles the full output in RAM. Chain the model output to the next Segment Interpolate to force sequential execution. |
| segment_size | INT | 5002–10000 | Number of input frames per segment. Adjacent segments overlap by 1 frame for seamless stitching. Smaller = less peak RAM per segment. Save each segment's output to disk before the next runs. |
| settingsopt | VFI_SETTINGS | Auto-tuned settings from VFI Optimizer. Overrides batch_size, chunk_size, keep_device, all_on_gpu, clear_cache_after_n_frames. |
Outputs (3)
| Name | Type | Description |
|---|---|---|
| images | IMAGE | — |
| model | BIM_VFI_MODEL | — |
| elapsed_seconds | FLOAT | — |