Struct Triangle 

pub struct Triangle {
    pub v: [[f64; 3]; 3],
    pub n: [[f64; 3]; 3],
    pub uv: [[f64; 2]; 3],
    pub material_id: u32,
}

A triangle primitive for ray tracing.

Fields

v: [[f64; 3]; 3]

Vertex positions.

n: [[f64; 3]; 3]

Per-vertex normals.

uv: [[f64; 2]; 3]

Per-vertex UV coordinates.

material_id: u32

Material index.

Implementations

impl Triangle

pub fn new( v0: [f64; 3], v1: [f64; 3], v2: [f64; 3], n0: [f64; 3], n1: [f64; 3], n2: [f64; 3], uv0: [f64; 2], uv1: [f64; 2], uv2: [f64; 2], material_id: u32, ) -> Self

Create a new triangle.

pub fn geometric_normal(&self) -> [f64; 3]

Compute the geometric normal from vertex positions.

pub fn intersect(&self, ray: &Ray) -> Option<f64>

Möller–Trumbore ray-triangle intersection.

Returns Some(t) if the ray intersects the triangle, within [t_min, t_max].

pub fn intersect_full(&self, ray: &Ray) -> Option<(f64, f64, f64)>

Full intersection returning barycentric coordinates.

pub fn interpolate_normal(&self, u: f64, v: f64) -> [f64; 3]

Interpolate the shading normal at barycentric (u,v).

pub fn interpolate_uv(&self, u: f64, v: f64) -> [f64; 2]

Interpolate UV coordinates at barycentric (u,v).

pub fn aabb(&self) -> Aabb

Axis-aligned bounding box of the triangle.

pub fn centroid(&self) -> [f64; 3]

Centroid of the triangle.

pub fn area(&self) -> f64

Surface area of the triangle.

Trait Implementations

impl Clone for Triangle

fn clone(&self) -> Triangle

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Triangle

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

Formats the value using the given formatter.

impl Copy for Triangle