Struct nalgebra::geometry::Perspective3

pub struct Perspective3<N: Scalar> { /* fields omitted */ }

A 3D perspective projection stored as an homogeneous 4x4 matrix.

Methods

impl<N: Real> Perspective3<N>

pub fn new(aspect: N, fovy: N, znear: N, zfar: N) -> Self

Creates a new perspective matrix from the aspect ratio, y field of view, and near/far planes.

pub fn from_matrix_unchecked(matrix: Matrix4<N>) -> Self

Wraps the given matrix to interpret it as a 3D perspective matrix.

It is not checked whether or not the given matrix actually represents an orthographic projection.

pub fn inverse(&self) -> Matrix4<N>

Retrieves the inverse of the underlying homogeneous matrix.

pub fn to_homogeneous(&self) -> Matrix4<N>

Computes the corresponding homogeneous matrix.

pub fn as_matrix(&self) -> &Matrix4<N>

A reference to the underlying homogeneous transformation matrix.

pub fn unwrap(self) -> Matrix4<N>

Retrieves the underlying homogeneous matrix.

pub fn aspect(&self) -> N

Gets the width / height aspect ratio of the view frustrum.

pub fn fovy(&self) -> N

Gets the y field of view of the view frustrum.

pub fn znear(&self) -> N

Gets the near plane offset of the view frustrum.

pub fn zfar(&self) -> N

Gets the far plane offset of the view frustrum.

pub fn project_point(&self, p: &Point3<N>) -> Point3<N>

Projects a point. Faster than matrix multiplication.

pub fn unproject_point(&self, p: &Point3<N>) -> Point3<N>

Un-projects a point. Faster than multiplication by the matrix inverse.

pub fn project_vector<SB>(&self, p: &Vector<N, U3, SB>) -> Vector3<N> where
    SB: Storage<N, U3>, 

Projects a vector. Faster than matrix multiplication.

pub fn set_aspect(&mut self, aspect: N)

Updates this perspective matrix with a new width / height aspect ratio of the view frustrum.

pub fn set_fovy(&mut self, fovy: N)

Updates this perspective with a new y field of view of the view frustrum.

pub fn set_znear(&mut self, znear: N)

Updates this perspective matrix with a new near plane offset of the view frustrum.

pub fn set_zfar(&mut self, zfar: N)

Updates this perspective matrix with a new far plane offset of the view frustrum.

pub fn set_znear_and_zfar(&mut self, znear: N, zfar: N)

Updates this perspective matrix with new near and far plane offsets of the view frustrum.

Trait Implementations

impl<N: Real> Copy for Perspective3<N>

impl<N: Real> Clone for Perspective3<N>

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<N: Real> Debug for Perspective3<N>

fn fmt(&self, f: &mut Formatter) -> Result<(), Error>

Formats the value using the given formatter.

impl<N: Real> PartialEq for Perspective3<N>

fn eq(&self, right: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl<N: Real + Rand> Rand for Perspective3<N>

fn rand<R: Rng>(r: &mut R) -> Self

Generates a random instance of this type using the specified source of randomness.