Math Patches Overview

Math patches can be used to perform math operations on inputted patches.

Available Math Patches

Name	Description
Delay	Delays a value by some time.
Exponential Smoothing	Returns a smoothed signal based on a damping factor measured in milliseconds.

Advanced

Name	Description
Arccosine	Calculates the arccosine of an argument.
Arcsine	Calculates the arcsine of an argument.
Arctangent	Calculates the angle of a triangle given its X and Y dimensions.
Cosine	Calculates the cosine of an argument.
Exponential	Calculates the natural exponentiation of an argument.
Logarithm	Calculates the natural logarithm of an argument.
Power	Calculates the value of the first parameter raised to the power of the second.
Sine	Calculates the sine of an argument.
Square Root	Calculates the square root of a value.
Tangent	Calculates the tangent of an argument.

Basic

Name	Description
Add	Adds two value together.
Ceiling	Rounds up a value.
Divide	Divides one value by another value.
Floor	Rounds down a value.
Maximum	Returns the greater of two values.
Minimum	Returns the lesser of two values.
Modulo	Calculates remainder when two values are divided.
Multiply	Multiplies two values.
Round	Rounds a number to the nearest integer.
Subtract	Subtracts one value from another value.

More

Name	Description
Absolute	Calculates the absolute value of an argument.
Clamp	Constrains a value between a minimum and maximum limit.
From Range	Maps a value from a specified range to the [0,1] range.
Mix	Perfom linear interpolation between two values modulated by an alpha value.
Negate	Change a value from positive to negative or from negative to positive.
Sign	Extracts the sign of a value. The output is -1 for negative, 0 for zero and +1 for positive.
Smooth Step	Performs Hermite interpolation between two values.
Step	Generates a step function by comparing two values.
To Range	Maps a value from the [0,1] range to a specified range.

The patches in the tables above will apply the operation separately on each component of the input.

So, if the input is Vector2 with the values (3.1,4.7), and we used the Round patch, the outputs will be (3, 5).

This also applies if there are two inputs. If you have an input of (5,7) and (1,6) and we use the Add patch, the outputs will be (6,13).

The input types must be compatible, for example you can't have an input of Vector2 and input of Vector3 connected to the same Add patch. If you want to use a number and another input, for example Vector2, Spark AR Studio will automatically expand the number to the corresponding input. So, if you have an input of (5,7) and the number 2 in an Add patch, the output would be (7,9).

Vector

Name	Description
Cross Product	Calculates the cross product of two vectors.
Distance	Calculates the distance between two points.
Dot Product	Calculates the dot product of two vectors.
Length	Calculates the length (or magnitude) of a value.
Normalize	Calculates the unit value in the same direction as the original value.
Reflect	Calculates the unit value in the same direction as the original value.