Noise

Adds various types of seemingly random noise to the input image.

Inputs and Controls

Connection Type	Connection Name	Function
Input	src	The image sequence to which white noise is added.
Input	mask	An optional image to use as a mask. By default, the effects are applied according to the value in the alpha channel of the mask.

Control (UI)	Knob (Scripting)	Default Value	Function
Enabled	Enabled	ticked	If unchecked, this node will be omitted from the compiled image processing graph. Any incoming connections will be forwarded to the first output port, if any.
Parameters
Reset parameters to default value using the reset icon:
Resolution	Resolution	1920 x 1080	The resolution of the output image, if there is no input node. If there is an input node the resolution will be taken from that.
Mode	Mode	Smooth	Sets the activation function used by the pixels. Choose between: • Cosine • Constant • Step • Triangle • Value Noise
MinColour	MinColour	0.000	Sets minimum values for each colour channel.
MaxColour	MaxColour	1.000	Sets maximum values for each colour channel.
Speed	Speed	1.000	Sets the speed at which a pixel completes an activation cycle. A value of 1.0 will typically equate to a cycle taking roughly 6 seconds.
Density	Density	1.000	Sets the percentage of time a pixel spends within the activation function. Lower values will create larger areas of black at any given time.
Use fBm	UseFbm	Unticked	Whether to use fBm

Octaves	FbmOctaves	3	Number of iterations to apply fBm.
Lacunarity	FbmLacunarity	4.000	Value to multiply frequency by at each octave.
Gain	FbmGain	0.250	Value to multiply amplitude by at each octave.
Root amplitude	FbmRootAmplitude	0.850	Initial amplitude of the noise
Root frequency	FbmRootFrequency	1.000	Initial frequency of the noise.
Randomise red	RandomiseRed	unticked	If ticked, randomizes the red channel of a pixel between 0.0 and the red channel in MaxColour.
Randomise green	RandomiseGreen	unticked	If ticked, randomizes the green channel of a pixel between 0.0 and the green channel in MaxColour.
Randomise blue	RandomiseBlue	unticked	If ticked, randomizes the blue channel of a pixel between 0.0 and the blue channel in MaxColour.
Randomise alpha	RandomiseAlpha	unticked	If ticked, randomizes the alpha channel of a pixel between 0.0 and the alpha channel in MaxColour.
Constant alpha	ConstantAlpha	ticked	If enabled, forces the alpha channel to be a constant 1.0.