Struct Eye 

pub struct Eye { /* private fields */ }

The eye of a window’s 3D scene.

Read in a scene3d closure through Eye::scene, it moves the scene’s camera without recomposition. The scene tells the renderer where the eye stands among the spaces behind its doorways, and the renderer leaves the eye what it can bump into there each time it places the scene, which Eye::walk reads.

Implementations

impl Eye

pub fn new(pose: EyePose, radius: f32) -> Self

An eye at pose: a ball of radius, in the units of the space it stands in, that stops short of solid surfaces.

pub fn pose(&self) -> EyePose

Where the eye stands and which way it looks.

pub fn scene(&self, focal_length: f32, light: Option<Light>) -> Scene3d

The scene seen through the eye: its camera, with focal_length, in the space it stands in, and light.

pub fn walk(&self, step: Vec3)

Walks the eye step, in the coordinates of the space it stands in: through the doorways the step passes, and pushed back from the solid surfaces of the space it walks into, along which it slides.

pub fn turn(&self, yaw: f32, pitch: f32)

Turns the eye yaw radians to the right and pitch up (see EyePose::turn).

pub fn place(&self, pose: EyePose)

Puts the eye at pose, through no doorway and stopped by nothing.

pub fn pose_in(&self, scene: NodeId) -> Option<EyePose>

Where the eye stands and which way it looks, in the coordinates of the space of the scene node scene: the one it stands in or one a doorway from it. None when no such space lies there.

pub fn enter(&self, scene: NodeId, pose: EyePose) -> bool

Puts the eye at pose, in the coordinates of the space of the scene node scene, as if it walked there: that space is the one the eye stands in or one a doorway from it. False, and the eye stays where it is, when no such space lies there.

Trait Implementations

impl Clone for Eye

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl PartialEq for Eye

Two handles are equal when they hold the same eye.

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

Equality operator ==.

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

Inequality operator !=.