45 lines
1.2 KiB
Rust
45 lines
1.2 KiB
Rust
//! Various shape implementations
|
|
|
|
use super::{Point, Point2D, Vector};
|
|
use bvh::{
|
|
aabb::{Bounded, AABB},
|
|
ray::Ray,
|
|
};
|
|
use serde::Deserialize;
|
|
|
|
/// All the existing `Shape` implementation.
|
|
#[serde(tag = "type")]
|
|
#[serde(rename_all = "lowercase")]
|
|
#[allow(missing_docs)]
|
|
#[enum_dispatch::enum_dispatch]
|
|
#[derive(Debug, PartialEq, Deserialize)]
|
|
pub enum ShapeEnum {
|
|
Sphere,
|
|
Triangle,
|
|
}
|
|
|
|
/// Represent an abstract shape inside the scene.
|
|
#[enum_dispatch::enum_dispatch(ShapeEnum)]
|
|
pub trait Shape: std::fmt::Debug {
|
|
/// Return the distance at which the object intersects with the ray, or None if it does not.
|
|
fn intersect(&self, ray: &Ray) -> Option<f32>;
|
|
/// Return the unit vector corresponding to the normal at this point of the shape.
|
|
fn normal(&self, point: &Point) -> Vector;
|
|
/// Project the point from the shape's surface to its texel coordinates.
|
|
fn project_texel(&self, point: &Point) -> Point2D;
|
|
/// Enclose the `Shape` in an axi-aligned bounding-box.
|
|
fn aabb(&self) -> AABB;
|
|
}
|
|
|
|
impl Bounded for dyn Shape {
|
|
fn aabb(&self) -> AABB {
|
|
self.aabb()
|
|
}
|
|
}
|
|
|
|
pub mod sphere;
|
|
pub use sphere::*;
|
|
|
|
pub mod triangle;
|
|
pub use triangle::*;
|