Scheduler Switch (Impact)

The Impact variant of the scheduler switch, and the one you want if your scheduler candidates are anything beyond the vanilla list. Scheduler Switch (Impact) is the same two-way picker - Input 1 or 2 selects between input1 and input2 - but its output socket is typed to Impact's full 16-value scheduler list: the nine vanilla schedulers, the AYS presets, and Impact's extras GITS[coeff=1.2], OSS FLUX, OSS Wan and simple_test. If you've ever wanted to A/B karras against GITS[coeff=1.2] at runtime, this is the switch that can.

How it works

Mechanically identical to every switch in the pack: if Input == 1: return input1 else: return input2, with both inputs typed * so they'll carry any scheduler value. Bypassed, it passes input1 through - the pack's standard bypass behavior, handy when you want to force one scheduler without editing wires. The only real difference from the base Scheduler Switch is the widened output socket, which matters because ComfyUI's type checker won't let the vanilla-typed switch feed an Impact sampler with a non-vanilla scheduler.

The inputs that matter

• Input (INT, 1 or 2) - slot selector.
• input1 / input2 (*) - the two scheduler candidates.

Drive Input from a slider or a loop counter and you can flip schedulers between batch runs, which is the honest reason anyone uses a switch node for this at all.

Deprecated, and aware of it

It lives in the DEPRECATED category, and the pack README confirms the project is unmaintained, superseded by ComfyUI_Eclipse. Fine for what it is - frozen plumbing - but note the scheduler list won't grow as Impact Pack adds schedulers in the future; what's baked into this pack's code is what you get.

Installing it

ComfyUI Manager → search ComfyUI-RvTools_v2, install, restart; or git clone https://github.com/r-vage/ComfyUI-RvTools_v2 into ComfyUI/custom_nodes. Impact Pack itself is a separate install via Manager. No model downloads.

Gotchas

Two. First, the v2 rename - legacy ComfyUI-RvTools v1 workflows show this node missing; that's the pack's known quirk, not a broken install. Second, simple_test is in the list but it's a debug scheduler from Impact - pick it on purpose or not at all; seeing it in the dropdown is normal.