### Description

This function transforms a vector by a matrix. You supply the
transform matrix ID (as returned by the function `matrix build`), as well as the x, y
and z values for the vector to transform. The function will return
a 1D array of 3 elements where array[0] = x, array[1] = y, array[2]
= z.

### Syntax:

matrix_transform_vertex(matrix, x, y, z);

Argument |
Description |

matrix |
The matrix to use |

x |
The x component of the transform vector |

y |
The y component of the transform vector |

z |
The z component of the transform vector |

### Returns:

Array (1D, 3 elements)

### Example:

t_matrix = matrix_build(0, 0, 0, 0, 90, 0, 1, 2,
1);

verts = matrix_transform_vertex(t_matrix, x, y, z);

The above code transforms the given values using the matrix
stored in the variable "t_matrix" and stores them in the array
"verts".