ComfyUI Node
H3 Context Taper Noise (frames)
Inject tapered blocky chroma noise into the tail of a context clip before it reaches H3 Motion Context's context_frames. In-graph equivalent of inject_tail_taper.py, minus the mp4 round trip. The result is disposable: never feed it back in as the next link's context.
H3 Context Taper Noise (frames)
- images
- images
- alpha_schedule
◄tail_frames22►
◄alpha0.45►
◄alpha_end0.10►
◄ramp_frames3►
◄seed0►
◄patternpoc_chroma_blocks►
◄grid_modepoc_36x64►
◄block_size16►
Categoryconditioning/minimax
Inputs (9)
| Name | Type | Default | Description |
|---|---|---|---|
| images | IMAGE | The previous clip's decoded frames, exactly what you would otherwise wire straight into H3 Motion Context's context_frames. | |
| tail_frames | INT | 221–4096 | How many frames at the END of this clip get injected. Motion Context pins the LAST context_length frames, so keep this >= context_length or some pinned frames stay clean. Frames before the window pass through untouched. |
| alpha | FLOAT | 0.450–1 | Flat injection strength across the window. 0.45 is the validated value. Lower keeps more of the previous clip's appearance; higher pushes the model harder onto the identity references. |
| alpha_end | FLOAT | 0.100–1 | Strength at the very last frame, the one touching the seam. Must not exceed alpha. |
| ramp_frames | INT | 31–4096 | How many frames at the end taper from alpha down to alpha_end. 3 is the validated value: 0.333 / 0.217 / 0.100. |
| seed | INT | 00–18446744073709550000 | Noise pattern seed. One stream feeds every injected frame, so the whole sequence is reproducible from this alone. |
| patternopt | COMBO | poc_chroma_blocks | poc_chroma_blocks is the validated 6-colour chroma palette. The other two are for experiments and are not validated. |
| grid_modeopt | COMBO | poc_36x64 | poc_36x64 reproduces the reference script bit-for-bit, but only equals 16x16 pixel blocks at 576x1024. block_size holds the block scale constant at any resolution. |
| block_sizeopt | INT | 161–256 | Pixel block size when grid_mode is block_size. |
Outputs (2)
| Name | Type | Description |
|---|---|---|
| images | IMAGE | — |
| alpha_schedule | STRING | — |