Convolution

Apply convolution operation on each pixel using a custom 3x3 kernel.

Node Data
Display name
Convolution
Internal name
Node_Convolution
Inheritances
Node_Processor
Node_Convolution
Inputs
Node_Convolution
toggle	Channel
surface	Surface In
surface	Mask
slider	Mix
int	Size
matrix	Kernel
bool	Normalize
Outputs
Node_Convolution
surface	Surface Out
Attributes
Color Depth
Oversample

Convolution operation is a building block for many effects. Convolution node act on each pixel, calculating sum of all the pixels around it multiply with some number.

Properties

Surface In

Input surface

Kernel

A 3x3 matrix defining the value to multiply each neighbor pixel with.

Related Links

• Base Code: /scripts/node_convolution/node_convolution.gml
• Shader [sh_convolution]: /shaders/sh_convolution/sh_convolution.fsh