Math Modifier
Updated: 4 Dec 2023
Generates modifier values from mathematical functions.
Math Modifier
Method #
This node generates modifier values on the basis of mathematical pattern functions, from smooth sine waves to noise. A speed value of “1” equals one whole cycle taking 1 second, or 1 Hz if you will. The exception is the various noise functions that generate random values for every frame.
The node provides a preview of the pattern value that will be generated with a tracer line showing the place of the play head.
The output is a numeric value that can be further processed with other modifiers, or directly connected to a parameter in another node, using the operation method selected.
Parameters
These properties control the core behaviours of the node.
Parameter Details Current Value
Shows the current value of the effect. Cannot be directly changed.
Math Function
The mathematical function to be used by the modifier.
- Sine : A simple sine wave. Value = 1 equals 1 second per cycle.
- Cosine : A simple cosine wave. Value = 1 equals 1 second per cycle.
- Interpolated Noise : Random noise is generated with values and smoothly interpolated.
- Square : Jumps between 0 and 1 at a constant pace. Value = 1 equals 1 second per cycle.
- Square - Inverted : Jumps between 0 and 1 at a constant pace, at opposite timing to square. Value = 1 equals 1 second per cycle.
- Random Noise : Random values are generated at regular intervals with no interpolation between values.
- Perlin Noise : Noise is generated based on a gradient function, leading to smoother looking noise.
- Saw : Value Rises consistently, before sharply decreasing. Value = 1 equals 1 second per cycle.
- Triangle : Value rises then decreases at the same consistent rate. Value = 1 equals 1 second per cycle.
Blend Amount
Control how much the modifier affects the values its input into.
Scale
Adjust the scale/range of the modifier.
Offset
Applies an offset (post scale) to the calculated value
Speed
The speed at which the value moves through the generated pattern.
Time Offset
Offsets the time the value is modified from the time the waveform is played.
Time Mode
How the modifier updates with relation to the time code.
- Locked To Timecode : The modifier values are locked to the time code and the same time will always yield the same numerical value.
- Running / Looping : The modifier values are disconnected from the time code and will loop seamlessly at the end of the layer. This also means that animated speed values will change smoothly.
Operation
The operation to be performed on the targeted parameter.
- Add : Adds to the parameter value.
- Subtract : Subtracts from the parameter value.
- Multiply : Multiplies the parameter value.
- Replace : Replaces the parameter value.
Restore Values
Toggle whether the values restore to 0. If unchecked, generated values incrementally add to the modifier value.
Use Absolute Value (Ignore Sign)
Ignore negative signs.
Perlin Noise Octaves
The granularity of the noise.
Inputs
These properties control the core behaviours of the node.
| Parameter | Details |
|---|---|
| Current Value | Shows the current value of the effect. Cannot be directly changed. |
| Math Function |
The mathematical function to be used by the modifier.
|
| Blend Amount | Control how much the modifier affects the values its input into. |
| Scale | Adjust the scale/range of the modifier. |
| Offset | Applies an offset (post scale) to the calculated value |
| Speed | The speed at which the value moves through the generated pattern. |
| Time Offset | Offsets the time the value is modified from the time the waveform is played. |
| Time Mode |
How the modifier updates with relation to the time code.
|
| Operation |
The operation to be performed on the targeted parameter.
|
| Restore Values | Toggle whether the values restore to 0. If unchecked, generated values incrementally add to the modifier value. |
| Use Absolute Value (Ignore Sign) | Ignore negative signs. |
| Perlin Noise Octaves | The granularity of the noise. |
There are no inputs for this node.
