- ortho(left, right, bottom, top, near, far, dst?): Mat4
#### Parameters

- left: number
Left side of the near clipping plane viewport.

- right: number
Right side of the near clipping plane viewport.

- bottom: number
Bottom of the near clipping plane viewport.

- top: number
Top of the near clipping plane viewport.

- near: number
The depth (negative z coordinate) of the near clipping plane.

- far: number
The depth (negative z coordinate) of the far clipping plane.

`Optional`

dst: Mat4Output matrix. If not passed a new one is created.

#### Returns Mat4

The orthographic projection matrix.

- left: number

Computes a 4-by-4 orthogonal transformation matrix that transforms from the given the left, right, bottom, and top dimensions to -1 +1 in x, and y and 0 to +1 in z.