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FiDA-3D-Trellis/trellis/modules/sparse/nonlinearity.py

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2026-03-17 11:38:16 +08:00
import torch
import torch.nn as nn
from . import SparseTensor
__all__ = [
'SparseReLU',
'SparseSiLU',
'SparseGELU',
'SparseActivation'
]
class SparseReLU(nn.ReLU):
def forward(self, input: SparseTensor) -> SparseTensor:
return input.replace(super().forward(input.feats))
class SparseSiLU(nn.SiLU):
def forward(self, input: SparseTensor) -> SparseTensor:
return input.replace(super().forward(input.feats))
class SparseGELU(nn.GELU):
def forward(self, input: SparseTensor) -> SparseTensor:
return input.replace(super().forward(input.feats))
class SparseActivation(nn.Module):
def __init__(self, activation: nn.Module):
super().__init__()
self.activation = activation
def forward(self, input: SparseTensor) -> SparseTensor:
return input.replace(self.activation(input.feats))