---
title: MPSCNNNeuron
framework: metalperformanceshaders
role: symbol
role_heading: Class
path: metalperformanceshaders/mpscnnneuron
---

# MPSCNNNeuron

A filter that applies a neuron activation function.

## Declaration

```swift
class MPSCNNNeuron
```

## Overview

Overview Do not use this class directly; use one of the MPSCNNNeuron subclasses instead.

## Topics

### Initializers

- [init(coder:device:)](metalperformanceshaders/mpscnnneuron/init(coder:device:).md)
- [init(device:neuronDescriptor:)](metalperformanceshaders/mpscnnneuron/init(device:neurondescriptor:).md)

### Instance Properties

- [a](metalperformanceshaders/mpscnnneuron/a.md)
- [b](metalperformanceshaders/mpscnnneuron/b.md)
- [c](metalperformanceshaders/mpscnnneuron/c.md)
- [data](metalperformanceshaders/mpscnnneuron/data.md)
- [neuronType](metalperformanceshaders/mpscnnneuron/neurontype.md)

## Relationships

### Inherits From

- [MPSCNNKernel](metalperformanceshaders/mpscnnkernel.md)

### Inherited By

- [MPSCNNNeuronAbsolute](metalperformanceshaders/mpscnnneuronabsolute.md)
- [MPSCNNNeuronELU](metalperformanceshaders/mpscnnneuronelu.md)
- [MPSCNNNeuronExponential](metalperformanceshaders/mpscnnneuronexponential.md)
- [MPSCNNNeuronHardSigmoid](metalperformanceshaders/mpscnnneuronhardsigmoid.md)
- [MPSCNNNeuronLinear](metalperformanceshaders/mpscnnneuronlinear.md)
- [MPSCNNNeuronLogarithm](metalperformanceshaders/mpscnnneuronlogarithm.md)
- [MPSCNNNeuronPReLU](metalperformanceshaders/mpscnnneuronprelu.md)
- [MPSCNNNeuronPower](metalperformanceshaders/mpscnnneuronpower.md)
- [MPSCNNNeuronReLU](metalperformanceshaders/mpscnnneuronrelu.md)
- [MPSCNNNeuronReLUN](metalperformanceshaders/mpscnnneuronrelun.md)
- [MPSCNNNeuronSigmoid](metalperformanceshaders/mpscnnneuronsigmoid.md)
- [MPSCNNNeuronSoftPlus](metalperformanceshaders/mpscnnneuronsoftplus.md)
- [MPSCNNNeuronSoftSign](metalperformanceshaders/mpscnnneuronsoftsign.md)
- [MPSCNNNeuronTanH](metalperformanceshaders/mpscnnneurontanh.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSCoding](foundation/nscoding.md)
- [NSCopying](foundation/nscopying.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [NSSecureCoding](foundation/nssecurecoding.md)

## See Also

### Neuron Layers

- [MPSCNNNeuronAbsolute](metalperformanceshaders/mpscnnneuronabsolute.md)
- [MPSCNNNeuronELU](metalperformanceshaders/mpscnnneuronelu.md)
- [MPSCNNNeuronHardSigmoid](metalperformanceshaders/mpscnnneuronhardsigmoid.md)
- [MPSCNNNeuronLinear](metalperformanceshaders/mpscnnneuronlinear.md)
- [MPSCNNNeuronPReLU](metalperformanceshaders/mpscnnneuronprelu.md)
- [MPSCNNNeuronReLUN](metalperformanceshaders/mpscnnneuronrelun.md)
- [MPSCNNNeuronReLU](metalperformanceshaders/mpscnnneuronrelu.md)
- [MPSCNNNeuronSigmoid](metalperformanceshaders/mpscnnneuronsigmoid.md)
- [MPSCNNNeuronSoftPlus](metalperformanceshaders/mpscnnneuronsoftplus.md)
- [MPSCNNNeuronSoftSign](metalperformanceshaders/mpscnnneuronsoftsign.md)
- [MPSCNNNeuronTanH](metalperformanceshaders/mpscnnneurontanh.md)
- [MPSCNNNeuronExponential](metalperformanceshaders/mpscnnneuronexponential.md)
- [MPSCNNNeuronGradient](metalperformanceshaders/mpscnnneurongradient.md)
- [MPSCNNNeuronLogarithm](metalperformanceshaders/mpscnnneuronlogarithm.md)
- [MPSCNNNeuronPower](metalperformanceshaders/mpscnnneuronpower.md)