ausboss
48e225766e
The mode only rewrites the seed after a queue, so the first queue after switching from Fixed to Random reused the last seed and ComfyUI returned the cached result. Entering Random now rolls a new seed right away, and leaving Fixed for Step takes the first step; flipping Step's direction leaves the number alone. Checked live on a CPU instance: a Fixed run used 12345, clicking Random showed a new seed, and the next run used it.
1.9 KiB
1.9 KiB
Seed
One seed on its own INT wire, so every sampler that should share it does,
and a shared workflow can pin the exact seed that made its example image.
The card is the whole face: the number, the mode, and the buttons a run
needs.
The card
- The number — click to type a seed; ⧉ copies it. In Random mode the tag reads next: that is the seed the next queue will use.
- Random / Fixed / Step +1 — what happens after each queue. Random rolls a new seed, Fixed keeps it, Step +1 increments it (click it again for Step −1, which decrements). This is the sampler's own control after generate, just readable. Switching to Random also rolls a new seed right away, and switching from Fixed to Step takes the first step, so the next queue never repeats the run you just saw (ComfyUI would hand back its cached result).
- New seed — rolls a fresh seed and pins it (Fixed), so the following runs all use it.
- Use last run — puts the seed of the most recent run back in the box and pins it. Random mode replaces the seed the moment a run is queued, so the number in the box is already the next one while the image is still rendering; this button is how you get the one that made it.
- ▾ — the last eight seeds this node ran with, newest first; pick any to restore it the same way.
- The line underneath shows the last run's seed. The history saves with the workflow.
Output
- seed: The seed, unchanged.
Notes and limitations
- The last-run seed comes from the backend's own run, so it is right even when the control mode is before rather than after generate, and even when the node's output came from the cache.
- Sampler seeds go up to 2⁶⁴−1; the box accepts that range. Seeds rolled by the buttons stay below 2⁵⁰, the same ceiling ComfyUI's own randomize uses, so the number stays exact.
- Link a value into the seed row and the box goes read-only: the wire owns it.