Perspective3 in nalgebra::geometry - Rust
Description: A 3D perspective projection stored as a homogeneous 4x4 matrix.
Keywords: rust, rustlang, rust-lang, Perspective3

# Struct nalgebra::geometry::Perspective3

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    #[repr(C)]pub struct Perspective3<T> { /* private fields */ }

Expand description

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

## Implementations§

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### impl<T> Perspective3<T>

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#### pub const fn from_matrix_unchecked(matrix: Matrix4<T>) -> 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 a perspective projection.

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### impl<T: RealField> Perspective3<T>

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

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

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#### pub fn inverse(&self) -> Matrix4<T>

Retrieves the inverse of the underlying homogeneous matrix.

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#### pub fn to_homogeneous(self) -> Matrix4<T>

Computes the corresponding homogeneous matrix.

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#### pub fn as_matrix(&self) -> &Matrix4<T>

A reference to the underlying homogeneous transformation matrix.

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#### pub fn as_projective(&self) -> &Projective3<T>

A reference to this transformation seen as a `Projective3`.

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#### pub fn to_projective(self) -> Projective3<T>

This transformation seen as a `Projective3`.

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#### pub fn into_inner(self) -> Matrix4<T>

Retrieves the underlying homogeneous matrix.

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#### pub fn unwrap(self) -> Matrix4<T>

👎Deprecated: use `.into_inner()` instead

Retrieves the underlying homogeneous matrix. Deprecated: Use `Perspective3::into_inner` instead.

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#### pub fn aspect(&self) -> T

Gets the `width / height` aspect ratio of the view frustum.

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#### pub fn fovy(&self) -> T

Gets the y field of view of the view frustum.

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#### pub fn znear(&self) -> T

Gets the near plane offset of the view frustum.

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#### pub fn zfar(&self) -> T

Gets the far plane offset of the view frustum.

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

Projects a point. Faster than matrix multiplication.

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

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

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

Projects a vector. Faster than matrix multiplication.

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#### pub fn set_aspect(&mut self, aspect: T)

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

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#### pub fn set_fovy(&mut self, fovy: T)

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

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#### pub fn set_znear(&mut self, znear: T)

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

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#### pub fn set_zfar(&mut self, zfar: T)

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

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

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

## Trait Implementations§

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### impl<T: Clone> Clone for Perspective3<T>

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#### fn clone(&self) -> Perspective3<T>

Returns a copy of the value. Read more
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#### fn clone_from(&mut self, source: &Self)

Performs copy-assignment from `source`. Read more
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### impl<T: RealField> Debug for Perspective3<T>

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

Formats the value using the given formatter. Read more
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### impl<T: RealField> From<Perspective3<T>> for Matrix4<T>

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#### fn from(pers: Perspective3<T>) -> Self

Converts to this type from the input type.
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### impl<T: RealField> PartialEq<Perspective3<T>> for Perspective3<T>

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

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more
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#### fn ne(&self, other: &Rhs) -> bool

This method tests for `!=`. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more
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### impl<T: Copy> Copy for Perspective3<T>

## Auto Trait Implementations§

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### impl<T> RefUnwindSafe for Perspective3<T>where
T: RefUnwindSafe,

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### impl<T> Send for Perspective3<T>where
T: Send,

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### impl<T> Sync for Perspective3<T>where
T: Sync,

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### impl<T> Unpin for Perspective3<T>where
T: Unpin,

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### impl<T> UnwindSafe for Perspective3<T>where
T: UnwindSafe,

## Blanket Implementations§

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### impl<T> Any for Twhere
T: 'static + ?Sized,

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#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more
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### impl<T> Borrow<T> for Twhere
T: ?Sized,

const: unstable · source§

#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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### impl<T> BorrowMut<T> for Twhere
T: ?Sized,

const: unstable · source§

#### fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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### impl<T> From<T> for T

const: unstable · source§

#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T, U> Into<U> for Twhere
U: From<T>,

const: unstable · source§

#### fn into(self) -> U

Calls `U::from(self)`.

That is, this conversion is whatever the implementation of `From<T> for U` chooses to do.

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### impl<T> Same<T> for T

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#### type Output = T

Should always be `Self`
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### impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,

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#### fn to_subset(&self) -> Option<SS>

The inverse inclusion map: attempts to construct `self` from the equivalent element of its superset. Read more
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#### fn is_in_subset(&self) -> bool

Checks if `self` is actually part of its subset `T` (and can be converted to it).
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#### fn to_subset_unchecked(&self) -> SS

Use with care! Same as `self.to_subset` but without any property checks. Always succeeds.
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#### fn from_subset(element: &SS) -> SP

The inclusion map: converts `self` to the equivalent element of its superset.
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### impl<T> ToOwned for Twhere
T: Clone,

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#### type Owned = T

The resulting type after obtaining ownership.
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#### fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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#### fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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### impl<T, U> TryFrom<U> for Twhere
U: Into<T>,

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#### type Error = Infallible

The type returned in the event of a conversion error.
const: unstable · source§

#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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### impl<T, U> TryInto<U> for Twhere
U: TryFrom<T>,

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#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
const: unstable · source§

#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.