52 lines
1.3 KiB
Rust
52 lines
1.3 KiB
Rust
#[cfg(feature = "arbitrary")]
|
|
#[macro_use]
|
|
extern crate quickcheck;
|
|
#[macro_use]
|
|
extern crate approx;
|
|
|
|
extern crate nalgebra as na;
|
|
|
|
use na::{Point3, Perspective3, Orthographic3};
|
|
|
|
#[test]
|
|
fn perspective_inverse() {
|
|
let proj = Perspective3::new(800.0 / 600.0, 3.14 / 2.0, 1.0, 1000.0);
|
|
let inv = proj.inverse();
|
|
|
|
let id = inv * proj.unwrap();
|
|
|
|
assert!(id.is_identity(1.0e-7));
|
|
}
|
|
|
|
#[test]
|
|
fn orthographic_inverse() {
|
|
let proj = Orthographic3::new(1.0, 2.0, -3.0, -2.5, 10.0, 900.0);
|
|
let inv = proj.inverse();
|
|
|
|
let id = inv * proj.unwrap();
|
|
|
|
assert!(id.is_identity(1.0e-7));
|
|
}
|
|
|
|
|
|
#[cfg(feature = "arbitrary")]
|
|
quickcheck!{
|
|
fn perspective_project_unproject(pt: Point3<f64>) -> bool {
|
|
let proj = Perspective3::new(800.0 / 600.0, 3.14 / 2.0, 1.0, 1000.0);
|
|
|
|
let projected = proj.project_point(&pt);
|
|
let unprojected = proj.unproject_point(&projected);
|
|
|
|
relative_eq!(pt, unprojected, epsilon = 1.0e-7)
|
|
}
|
|
|
|
fn orthographic_project_unproject(pt: Point3<f64>) -> bool {
|
|
let proj = Orthographic3::new(1.0, 2.0, -3.0, -2.5, 10.0, 900.0);
|
|
|
|
let projected = proj.project_point(&pt);
|
|
let unprojected = proj.unproject_point(&projected);
|
|
|
|
relative_eq!(pt, unprojected, epsilon = 1.0e-7)
|
|
}
|
|
}
|