ComfyUI Extension: More Math

Authored by mcDandy

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Adds math nodes for FLOAT, CONDITIONING, LATENT, IMAGE, NOISE and AUDIO. Allows usage of math expressions with variety of functions and variables, not limited to inputs. List of those is on github of this extension.

Custom Nodes (0)

    README

    More Math

    Adds math nodes for numbers and types which do not need it. I got inspired by was_extras node.

    #WARNING This node is not compatible to ComfyUI-Impact-Pack which forces older antlr version.

    Quickstart

    1. Install ComfyUI.
    2. Clone this repository into ComfyUI/custom_nodes.
    3. Restart ComfyUI.

    You can also get the node from comfy manager under the name of More math.

    Features

    • functions and variables in math expressions
    • Nodes for CONDITIONING, LATENT, IMAGE, NOISE, FLOAT, and AUDIO

    Operators

    • Math: +, -, *, /, %, ^
    • Boolean: <, <=, >, >=, ==, !=
      (false = 0.0, true = 1.0)

    Functions

    • Basic: abs, sqrt, ln, log, exp, pow
    • Trigonometric: sin, cos, tan, asin, acos, atan, atan2
    • Hyperbolic: sinh, cosh, tanh, asinh, acosh, atanh
    • Aggregates: smin, smax , snorm (scalar), tmin, tmax, tnorm (elementwise)
    • Other: floor, ceil, round, gamma, clamp, sigm (sigmoid)
    • Audio-specific: fft (short-time FFT), ifft (inverse sFFT always return audio back to time domain before leaving node), angle (in ifft only)

    Variables

    • common inputs (matches node input type):

      • a, b, c, d

    • Extra floats:

      • w, x, y, z

    • IMAGE and LATENT:

      • C or channel - channel of image
      • X - position X in image. 0 is in top left
      • Y - position Y in image. 0 is in top left
      • W or width - width of image. y/width = 1
      • H or height- height of image. x/height = 1
      • B or 'batch' - position in batch
      • 'T' or 'batch_count` - number of batches
      • N or channel_count - count of channels

    • AUDIO:

      • B or 'batch' - position in batch
      • N or channel_count - count of channels
      • S or sample – current audio sample
      • 'T' or 'sample_count` - audio lenght in samples
      • R or sample_rate – sample rate
      • F – frequency count (freq domain, iFFT only)
      • K – current frequency (freq domain, iFFT only)

    • VIDEO

      • refer to IMAGE and LATENT for visual part (but batch is frame and batch_count is frame_count)
      • refer to AUDIO for sound part

    • NOISE

      • refer to IMAGE and LATENT for most variables
      • I or input_latent – latent used as input to generate noise before noise is generated into it

    • CONDITIONING and FLOAT

      • no additional variables

    • Constants: e, pi