ling::gfx::camera

Struct Camera3D

pub struct Camera3D {
    pub cry: f32,
    pub sry: f32,
    pub crx: f32,
    pub srx: f32,
    pub cx: f32,
    pub cy: f32,
    pub focal: f32,
    pub zdist: f32,
    pub tx: f32,
    pub ty: f32,
    pub tz: f32,
}

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§cry: f32

Precomputed cos/sin of the Y-axis rotation angle.

§sry: f32§crx: f32

Precomputed cos/sin of the X-axis rotation angle.

§srx: f32§cx: f32

Screen-centre in pixels (set automatically when the window opens).

§cy: f32§focal: f32

Focal length in pixels — controls field of view.

§zdist: f32

Z offset added before the perspective divide (keeps objects in front of the camera; typical value 4–6).

§tx: f32

World-space camera position — subtracted from every point before rotation. Move the camera with set_camera_pos / move_camera.

§ty: f32§tz: f32

Implementations§

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impl Camera3D

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pub fn depth(&self, wx: f32, wy: f32, wz: f32) -> f32

Camera-space depth only — cheaper than a full project() when you only need to test whether a point is in front of the camera.

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pub fn project(&self, wx: f32, wy: f32, wz: f32) -> (f32, f32, f32)

Project a world-space point to (screen_x, screen_y, camera_depth). Pipeline: translate → Y-rotation → X-rotation → perspective divide.

Trait Implementations§

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impl Clone for Camera3D

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fn clone(&self) -> Camera3D

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

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impl Debug for Camera3D

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

Formats the value using the given formatter. Read more

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impl Default for Camera3D

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl UnwindSafe for Camera3D

Blanket Implementations§

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impl<T> Any for T
where 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 T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more

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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

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impl<S, T> Duplex<S> for T
where T: FromSample<S> + ToSample<S>,

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<S> FromSample<S> for S

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fn from_sample_(s: S) -> S

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impl<T, U> Into for T
where U: From<T>,

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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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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