donut/
donut.rs

1//! A visual recreation of donut-c in gemini
2use gemini_engine::{
3    core::ColChar,
4    mesh3d::{Mesh3D, Transform3D, Vec3D},
5    view::View,
6    view3d::{DisplayMode, Light, Viewport},
7};
8use std::{thread, time::Duration};
9
10const FPS: f32 = 60.0;
11const FOV: f64 = 95.0;
12
13fn main() {
14    let mut view = View::new(100, 45, ColChar::EMPTY);
15    let mut viewport = Viewport::new(
16        Transform3D::look_at_lh(Vec3D::new(0.0, -3.0, 6.0), Vec3D::ZERO, Vec3D::Y),
17        FOV,
18        view.center(),
19    );
20
21    viewport.display_mode = DisplayMode::Illuminated {
22        lights: vec![
23            Light::new_ambient(0.3),
24            Light::new_directional(0.7, Vec3D::new(1.0, 1.0, 1.0)),
25        ],
26    };
27
28    viewport.objects.push(Mesh3D::torus(1.8, 1.0, 32, 16));
29
30    loop {
31        let donut_tr = &mut viewport.objects[0].transform;
32        *donut_tr = donut_tr.mul_mat4(&Transform3D::from_rotation_y(-0.03));
33        *donut_tr = donut_tr.mul_mat4(&Transform3D::from_rotation_x(0.03));
34
35        view.clear();
36        view.draw(&viewport);
37        let _ = view.display_render();
38
39        thread::sleep(Duration::from_secs_f32(1.0 / FPS));
40    }
41}
donut/donut.rs

donut/
donut.rs
