nalgebra/nalgebra-glm/tests/lib.rs
2020-04-05 18:49:48 +02:00

56 lines
1.6 KiB
Rust

extern crate nalgebra as na;
extern crate nalgebra_glm as glm;
use glm::Mat4;
use glm::Vec4;
use na::Orthographic3;
use na::Perspective3;
#[test]
pub fn orthographic_glm_nalgebra_same() {
let na_mat: Mat4 =
Orthographic3::new(-100.0f32, 100.0f32, -50.0f32, 50.0f32, 0.1f32, 100.0f32).into_inner();
let gl_mat: Mat4 = glm::ortho(-100.0f32, 100.0f32, -50.0f32, 50.0f32, 0.1f32, 100.0f32);
assert_eq!(na_mat, gl_mat);
}
#[test]
pub fn perspective_glm_nalgebra_same() {
let na_mat: Mat4 =
Perspective3::new(16.0f32 / 9.0f32, 3.14f32 / 2.0f32, 0.1f32, 100.0f32).into_inner();
let gl_mat: Mat4 = glm::perspective(16.0f32 / 9.0f32, 3.14f32 / 2.0f32, 0.1f32, 100.0f32);
assert_eq!(na_mat, gl_mat);
}
#[test]
pub fn orthographic_glm_nalgebra_project_same() {
let point = Vec4::new(1.0, 0.0, -20.0, 1.0);
let na_mat: Mat4 =
Orthographic3::new(-100.0f32, 100.0f32, -50.0f32, 50.0f32, 0.1f32, 100.0f32).into_inner();
let gl_mat: Mat4 = glm::ortho(-100.0f32, 100.0f32, -50.0f32, 50.0f32, 0.1f32, 100.0f32);
let na_pt = na_mat * point;
let gl_pt = gl_mat * point;
assert_eq!(na_mat, gl_mat);
assert_eq!(na_pt, gl_pt);
}
#[test]
pub fn perspective_glm_nalgebra_project_same() {
let point = Vec4::new(1.0, 0.0, -20.0, 1.0);
let na_mat: Mat4 =
Perspective3::new(16.0f32 / 9.0f32, 3.14f32 / 2.0f32, 0.1f32, 100.0f32).into_inner();
let gl_mat: Mat4 = glm::perspective(16.0f32 / 9.0f32, 3.14f32 / 2.0f32, 0.1f32, 100.0f32);
let na_pt = na_mat * point;
let gl_pt = gl_mat * point;
assert_eq!(na_mat, gl_mat);
assert_eq!(na_pt, gl_pt);
}