Struct MeshSurface 

pub struct MeshSurface {
    pub mesh: Arc<Mesh>,
    pub transform: Mat4,
    pub material: Material,
    pub casts_shadow: bool,
    pub solid: bool,
}

A composable’s content drawn on a mesh placed in a scene.

Fields

mesh: Arc<Mesh>

The mesh the content is drawn on.

transform: Mat4

Places the mesh in the scene.

material: Material

How the content meets the scene’s light and what lies behind it.

casts_shadow: bool

Whether the surface casts a shadow from the scene’s light. Every lit and unlit surface takes the shadows that fall on it.

solid: bool

Whether an eye that walks into the surface (see EyeWorld::walk) stops there. A doorway in the surface’s content lets it through.

Implementations

impl MeshSurface

pub fn cast(&self, ray: Ray, size: Size) -> Option<SurfaceHit>

The content of a composable of size on the mesh: the content point where the ray meets the mesh, the triangle it meets, and how far along the ray.

pub fn cast_plane(&self, ray: Ray, triangle: u32, size: Size) -> Option<Point>

The content point of a composable of size where the ray meets the plane of triangle: a drag that leaves the mesh’s edge goes on along it.

pub fn content_transform( &self, camera: &Camera, viewport: Size, size: Size, ) -> Option<ProjectiveTransform>

The projective map that carries the content of a composable of size from the mesh to the bounds of viewport that camera shows. It is exact for a flat mesh; for a curved one it follows the plane that touches the mesh at the content’s middle. It sends the part nearer than the camera’s near plane to w below NEAR_PLANE, which ProjectiveTransform::front_polygon cuts away. None for content of no size, or for a mesh with no texture plane.

pub fn content_to_scene(&self, size: Size) -> Option<Mat4>

The map from the content space of a composable of size on the mesh into the scene: x and y in the content’s pixels from its top left, z into the surface, away from the side it shows its content to, a unit as long as a content pixel. A mesh surface inside this content is placed in that space. It is exact for a flat mesh; for a curved one it follows the plane that touches the mesh at the content’s middle. None for content of no size, or for a mesh with no texture plane.

pub fn placed_by(&self, to_scene: &Mat4) -> MeshSurface

This surface with its transform followed by to_scene: a surface inside another’s content, placed in the scene through the other’s content_to_scene. Glass keeps its thickness in the units of the space it is placed from.

pub fn point_at(&self, point: Point, size: Size) -> Option<Vec3>

Where the content point point of a composable of size lies in the scene.

Trait Implementations

impl Clone for MeshSurface

fn clone(&self) -> MeshSurface

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MeshSurface

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

Formats the value using the given formatter.

impl PartialEq for MeshSurface

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MeshSurface