Encoding¶

encoding ¶

FourierEmbedder ¶

FourierEmbedder(num_freqs: int = 6, input_dim: int = 3, include_pi: bool = True, include_input: bool = True)

Bases: Module

Fourier positional encoding for continuous coordinates.

Maps input coordinates to a higher-dimensional space using sinusoidal functions at multiple frequencies. Commonly used for encoding 3D positions in neural fields (NeRF, SDF networks).

Reference: Hunyuan3D-2.1 autoencoders/model.py FourierEmbedder

Parameters:

Name	Type	Description	Default
`num_freqs`	`int`	Number of frequency bands.	`6`
`input_dim`	`int`	Dimensionality of input coordinates.	`3`
`include_pi`	`bool`	Whether to multiply frequencies by pi.	`True`
`include_input`	`bool`	Whether to concatenate raw input to output.	`True`

fourier ¶