Struct Occluder 

pub struct Occluder {
    pub kind: OccluderKind,
    pub center: Vector3D,
    pub extent: Vector3D,
    pub vertices: [Vector3D; 3],
    /* private fields */
}

A ray-traceable geometric surface with an attached material.

Fields

kind: OccluderKind

The geometric shape represented by this occluder.

center: Vector3D

For spheres: the center. For AABBs: the minimum corner. Unused by triangles, whose vertices live in vertices.

extent: Vector3D

For spheres: .x is the radius. For AABBs: the maximum corner. Unused by triangles, whose vertices live in vertices.

vertices: [Vector3D; 3]

For triangles: the three corners in winding order. Unused by spheres and AABBs, which are fully described by center and extent.

Implementations

impl Occluder

Implements factory constructors for Occluder.

pub fn sphere(center: Vector3D, radius: f64, material: Material) -> Occluder

Creates a spherical occluder centered at center with radius.

Arguments

• Vector3D - The sphere center.
• f64 - The sphere radius.
• Material - The surface material.

Returns

• Occluder - The new sphere occluder.

pub fn aabb(min: Vector3D, max: Vector3D, material: Material) -> Occluder

Creates an axis-aligned bounding-box occluder from min to max.

Arguments

• Vector3D - The AABB minimum corner.
• Vector3D - The AABB maximum corner.
• Material - The surface material.

Returns

• Occluder - The new AABB occluder.

pub fn triangle( v0: Vector3D, v1: Vector3D, v2: Vector3D, material: Material, ) -> Occluder

Creates a triangular occluder from its three vertices.

The vertex order fixes the geometric winding; because the intersection test is two-sided the winding does not affect which faces produce hits, only the raw cross-product normal before it is oriented against the incoming ray.

Arguments

• Vector3D - The first triangle vertex.
• Vector3D - The second triangle vertex.
• Vector3D - The third triangle vertex.
• Material - The surface material.

Returns

• Occluder - The new triangle occluder.

pub fn occluder_points(&self) -> Vec<(Vector3D, f64)>

Returns a list of (center, radius) sphere tuples approximating this occluder, suitable for soft_shadow_factor.

For sphere occluders this returns (center, radius). For AABB occluders the bounding sphere is computed conservatively from the AABB extents.

Returns

• Vec<(Vector3D, f64)> - One bounding sphere per occluder.

impl Occluder

pub fn get_kind(&self) -> OccluderKind

pub fn get_center(&self) -> Vector3D

pub fn get_extent(&self) -> Vector3D

pub fn get_vertices(&self) -> [Vector3D; 3]

Trait Implementations

impl Clone for Occluder

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Occluder

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

Formats the value using the given formatter.

impl PartialEq for Occluder

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Occluder