Mat4 class
Basic usage
Mat4 is the class used for all 4 dimensions matrices manipulations.
Creation
To create a new Mat4, just use its constructor.
If used without parameters, it will create a 4 dimensions identity matrix.
Use chaining
Since most of the Mat4 methods return the matrix itself, you can use chaining:
Parameters
 elements array of length 16, optional values to use for that matrix. Default to 4 dimensions identity matrix.
Properties

elements (Float32Array): v7.0
A Float32Array of length 16 representing that matrix.
Methods

composeFromOrigin(translation, quaternion, scale, origin): v7.0
Creates a matrix from a quaternion rotation, vector translation and vector scale, rotating and scaling around the given origin.
Equivalent for applying translation, rotation and scale matrices but much faster. translation Vec3 class object translation vector
 quaternion Quat class object rotation quaternion
 scale Vec3 class object scale vector
 origin Vec3 class object origin vector around which to scale and rotate
returns: this matrix after transformations.

copy(matrix): v7.0
Copy a matrix into this matrix.
 matrix Mat4 class object matrix to copy
returns: this matrix after copy.

getInverse(): v7.1
Creates a new matrix inverse from this matrix.
returns: a new matrix inverse of this matrix.

multiply(matrix): v7.0
Multiply this matrix by the matrix passed as parameter.
 matrix Mat4 class object matrix to multiply with.
returns: this matrix after multiplication.

scale(vector): v7.0
Scale this matrix by the vector passed as parameter.
 vector Vec3 class object vector to use for scaling
returns: this matrix after scaling.

setFromArray(array): v7.0
Sets the matrix values from an array.
 array array an array of at least 16 elements
returns: this matrix after being set.