oxide_math/
camera.rs

1//! Camera types
2
3use glam::{Mat4, Vec3};
4
5#[derive(Clone, Copy, Debug)]
6pub struct Camera {
7    pub position: Vec3,
8    pub target: Vec3,
9    pub up: Vec3,
10    pub fov: f32,
11    pub near: f32,
12    pub far: f32,
13}
14
15impl Default for Camera {
16    fn default() -> Self {
17        Self {
18            position: Vec3::new(0.0, 0.0, 5.0),
19            target: Vec3::ZERO,
20            up: Vec3::Y,
21            fov: 45.0_f32.to_radians(),
22            near: 0.1,
23            far: 100.0,
24        }
25    }
26}
27
28impl Camera {
29    pub fn new() -> Self {
30        Self::default()
31    }
32
33    pub fn view_matrix(&self) -> Mat4 {
34        Mat4::look_at_rh(self.position, self.target, self.up)
35    }
36
37    pub fn projection_matrix(&self, aspect_ratio: f32) -> Mat4 {
38        Mat4::perspective_rh(self.fov, aspect_ratio, self.near, self.far)
39    }
40
41    pub fn view_projection_matrix(&self, aspect_ratio: f32) -> Mat4 {
42        self.projection_matrix(aspect_ratio) * self.view_matrix()
43    }
44
45    pub fn forward(&self) -> Vec3 {
46        (self.target - self.position).normalize_or_zero()
47    }
48}
oxide_math/camera.rs

oxide_math/
camera.rs
