nalgebra/examples/mvp.rs
2017-03-02 21:35:39 +01:00

29 lines
940 B
Rust

#![allow(unused_variables)]
extern crate nalgebra as na;
use na::{Vector3, Point3, Isometry3, Perspective3};
fn main() {
// Our object is translated along the x axis.
let model = Isometry3::new(Vector3::x(), na::zero());
// Our camera looks toward the point (1.0, 0.0, 0.0).
// It is located at (0.0, 0.0, 1.0).
let eye = Point3::new(0.0, 0.0, 1.0);
let target = Point3::new(1.0, 0.0, 0.0);
let view = Isometry3::look_at_rh(&eye, &target, &Vector3::y());
// A perspective projection.
let projection = Perspective3::new(16.0 / 9.0, 3.14 / 2.0, 1.0, 1000.0);
// The combination of the model with the view is still an isometry.
let model_view = view * model;
// Convert everything to a `Matrix4` so that they can be combined.
let mat_model_view = model_view.to_homogeneous();
// Combine everything.
let model_view_projection = projection.as_matrix() * mat_model_view;
}