Pass Float

Pass Float takes a floating-point number, passes it through untouched, and hands it back. That's the entire job description, and it's the kind of node that looks like filler until you're elbow-deep in a workflow where the same value - a denoise strength, a CFG scale, a conditioning strength - has to reach four different places without you dragging a wire across the whole canvas.

The author's origin story for these passers is worth knowing because it tells you when to use them. They were created to sit in front of nodes that had trouble pulling values from bypassed nodes - the classic case where bypassing a section breaks the connection and your graph stops queuing. Put a passer in the path and the value flows through a stable wire no matter what gets bypassed upstream. The second, arguably more common use in practice is group organization: managed groups need at least two nodes to exist, and a collapsed passer is the cheapest way to make that happen while also acting as a tidy distribution point. One float in, fan it to several consumers from the passer's output.

Inputs and outputs

• flt (FLOAT, required) - the number. Note this one is marked forceInput in the code, which means you connect a float source rather than typing a value into a widget. That's intentional: the node exists to make the connection explicit, not to be a manual number box.
• Output FLOAT - wire it to denoise, CFG, or any other float input you want fed from this point.

There's nothing else to configure. If you want a manually typed number, a plain float widget or the pack's other float helpers are better tools; this passer is for routing an existing value.

Installing it

Ships in ComfyUI-RvTools_v2, installed the usual way:

cd ComfyUI/custom_nodes
git clone https://github.com/r-vage/ComfyUI-RvTools_v2

Restart ComfyUI afterward, or install via ComfyUI Manager (search "RvTools"). No model files, no exotic dependencies - the usual torch/numpy/Pillow plus opencv-python, pilgram, pynvml and piexif.

Gotchas

The README marks the pack no longer maintained, superseded by the same author's ComfyUI_Eclipse. Fine to keep using; just don't expect new features here.

Two practical notes. First, a passer passes through whatever it was last given - if the node feeding it is bypassed, the float it outputs may be stale, so don't treat it as a fallback that invents values. Second, there are float passers and float switches in this pack and they are not the same thing: the switch actively picks between two or more floats, this one just relays a single value. If you find yourself staring at a Pass Float and wishing it could choose, you grabbed the wrong node.