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ScriptoriumandClaude Opus 4.8 e2d94d71fe Add SimpleLERP node

Implement a linear-interpolation math node that maps an input value
from an input range [in_min, in_max] onto an output range
[out_min, out_max].

- node.py: SimpleLERP class (classic INPUT_TYPES/RETURN_TYPES pattern),
  float inputs for value and both ranges, plus a clamp toggle. Guards
  against a zero-width input range and supports inverted ranges.
- __init__.py: export NODE_CLASS_MAPPINGS / NODE_DISPLAY_NAME_MAPPINGS
  for ComfyUI discovery.
- README.md: usage, formula, and inputs/outputs tables.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-06-07 14:13:21 -04:00

1.6 KiB

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comfyui-lerp-node

A simple math node that performs linear interpolation between a base range and a mapped range.

SimpleLERP

Maps an input value from an input range [in_min, in_max] onto an output range [out_min, out_max]:

t      = (value - in_min) / (in_max - in_min)
output = out_min + t * (out_max - out_min)

Found in the node browser under the math category as Simple LERP.

Inputs

Name	Type	Default	Description
`value`	FLOAT	0.0	The value to map.
`in_min`	FLOAT	0.0	Lower bound of the input range.
`in_max`	FLOAT	1.0	Upper bound of the input range.
`out_min`	FLOAT	0.0	Lower bound of the output range.
`out_max`	FLOAT	1.0	Upper bound of the output range.
`clamp`	BOOLEAN	False	If true, hold the result within the output range instead of extrapolating.

Output

Name	Type	Description
`value`	FLOAT	The interpolated result.

Notes:

With clamp off, inputs outside [in_min, in_max] extrapolate beyond the output range.
Inverted ranges (e.g. out_min > out_max) are supported.
If in_min == in_max, the result is out_min (no division by zero).

1.6 KiB Raw Permalink Blame History

comfyui-lerp-node

SimpleLERP

Inputs

Output

1.6 KiB

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