noteuclid/refraction
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numzero 2024-05-27 19:16:30 +03:00
parent 1cf2518568
commit 33c51e425b
1 changed files with 4 additions and 9 deletions
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13
src/bin/flat.rs
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@ -51,7 +51,7 @@ struct Space {
rect: Rect,
}
#[derive(PartialEq, Eq)]
#[derive(PartialEq, Eq, Debug)]
enum Subspace {
Outer,
Boundary,
@ -101,13 +101,10 @@ fn draw_ray_2(gc: &mut Vec<Draw>, space: &Space, base: Vec2, dir: Vec2) {
let dir = space.rect.globalize(base, dir);
gc.new_path();
gc.move_to(base.x, base.y);
let dt = DT;
let mut p = base;
let mut v = space.rect.normalize_vec_at(base, dir);
for _ in 0..10000 {
let a: Vec2 = -riemann::contract2(riemann::krist(&space.rect, p), v);
v = v + a * dt;
p = p + v * dt;
Ray { pos: p, dir: v } = space.trace_step(Ray { pos: p, dir: v });
gc.line_to(p.x, p.y);
if p.abs().cmpgt(Vec2::splat(1000.0)).any() {
break;
@ -125,9 +122,7 @@ fn draw_ray_2(gc: &mut Vec<Draw>, space: &Space, base: Vec2, dir: Vec2) {
Inner => {
let cell = RectInside { rect: space.rect };
let ray = cell.ray_to_local(Ray { pos: p, dir: v });
let Some(ray) = cell.to_boundary(ray) else {
panic!("Can't get outta here!");
};
let ray = cell.to_boundary(ray).expect("Can't get outta here!");
Ray { pos: p, dir: v } = cell.ray_to_global(ray);
}
Outer => {
@ -229,7 +224,7 @@ impl Renderable for Rect {
}
}
#[derive(Debug, PartialEq)]
#[derive(Copy, Clone, Debug, PartialEq)]
struct Ray {
pos: Vec2,
dir: Vec2,