Class Mat4

constructor

• new Mat4(): Mat4

  Create a new identity Mat4

  Returns Mat4

clone

• clone(): Mat4

  Clone this matrix into a new Mat4

  Returns Mat4

  A new matrix with the same values

copy

• copy(other: Mat4): this

  Copy the values of another matrix into this matrix

  Parameters

  • other: Mat4

    The matrix to copy from

  Returns this

  The current matrix (for chaining)

identity

• identity(): this

  Resets this matrix to the identity matrix

  Returns this

  The current matrix (for chaining)

invert

• invert(): this

  Inverts this matrix (in-place)

  Returns this

  The current matrix (for chaining)

lookAt

• lookAt(eye: Vec3, center: Vec3, up: Vec3): this

  Generates a Look-At view matrix

  Parameters

  • eye: Vec3

    The position of the camera

  • center: Vec3

    The point the camera is looking at

  • up: Vec3

    The up vector of the camera

  Returns this

  The current matrix (for chaining)

multiply

• multiply(other: Mat4): this

  Multiplies this matrix by another matrix (in-place)

  Parameters

  • other: Mat4

    The matrix to multiply by

  Returns this

  The current matrix (for chaining)

ortho

• ortho(
      left: number,
      right: number,
      bottom: number,
      top: number,
      near: number,
      far: number,
  ): this

  Generates an orthogonal projection matrix

  Parameters

  • left: number

    Left bound of the frustum

  • right: number

    Right bound of the frustum

  • bottom: number

    Bottom bound of the frustum

  • top: number

    Top bound of the frustum

  • near: number

    Near clipping plane

  • far: number

    Far clipping plane

  Returns this

  The current matrix (for chaining)

perspective

• perspective(
      fovy: number,
      aspect: number,
      near: number,
      far: number,
      reversedZ?: boolean,
  ): this

  Generates a perspective projection matrix

  Parameters

  • fovy: number

    Field of view in radians

  • aspect: number

    Aspect ratio (width / height)

  • near: number

    Near clipping plane

  • far: number

    Far clipping plane

  • reversedZ: boolean = false

  Returns this

  The current matrix (for chaining)

rotate

• rotate(x: number, y: number, z: number): this

  Rotates this matrix around the X, Y, and Z axes (Euler angles)

  Parameters

  • x: number

    Rotation around X axis in radians

  • y: number

    Rotation around Y axis in radians

  • z: number

    Rotation around Z axis in radians

  Returns this

  The current matrix (for chaining)

scale

• scale(x: number | Vec3, y?: number, z?: number): this

  Scales this matrix by the given vector or x, y, z values

  Parameters

  • x: number | Vec3

    X scale or Vec3 vector

  • Optionaly: number

    Y scale

  • Optionalz: number

    Z scale

  Returns this

  The current matrix (for chaining)

transformDirection

• transformDirection(dir: Vec3, out?: Vec3): Vec3

  Transforms a directional vector by this matrix (ignoring translation)

  Parameters

  • dir: Vec3

    The direction vector to transform

  • Optionalout: Vec3 = ...

    Optional vector to store the result

  Returns Vec3

  The transformed direction vector

translate

• translate(x: number | Vec3, y?: number, z?: number): this

  Translates this matrix by the given vector or x, y, z values

  Parameters

  • x: number | Vec3

    X translation or Vec3 vector

  • Optionaly: number

    Y translation

  • Optionalz: number

    Z translation

  Returns this

  The current matrix (for chaining)

transpose

• transpose(): this

  Transposes this matrix (in-place)

  Returns this

  The current matrix (for chaining)

StaticfromQuaternion

• fromQuaternion(q: Quaternion, out?: Mat4): Mat4

  Creates a Mat4 from a Quaternion rotation

  Parameters

  • q: Quaternion

    The quaternion representing the rotation

  • Optionalout: Mat4 = ...

    Optional pre-allocated matrix to store the result

  Returns Mat4

  The rotation matrix

values