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Add boolean for drawing book cover.

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This commit is contained in:
Bill Thiede 2018-09-10 21:50:40 -07:00
parent f2c5cf48ad
commit 823e75da88
1 changed files with 61 additions and 41 deletions
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102
rtiow/src/bin/tracer.rs
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@ -13,6 +13,8 @@ use rtiow::ray::Ray;
use rtiow::sphere::Sphere;
use rtiow::vec3::Vec3;
const BOOK_COVER: bool = true;
fn color(r: Ray, world: &Hit, depth: usize) -> Vec3 {
if let Some(rec) = world.hit(r, 0.001, std::f32::MAX) {
let scatter_response = rec.material.scatter(&r, &rec);
@ -103,47 +105,65 @@ fn main() -> Result<(), std::io::Error> {
let nx = 200;
let ny = 100;
let ns = 100;
let lookfrom = Vec3::new(3., 3., 2.);
let lookat = Vec3::new(0., 0., -1.);
let dist_to_focus = (lookfrom - lookat).length();
let aperture = 2.;
let cam = Camera::new(
lookfrom,
lookat,
Vec3::new(0., 1., 0.),
20.,
nx as f32 / ny as f32,
aperture,
dist_to_focus,
);
let world = HitableList::new(vec![
Box::new(Sphere::new(
Vec3::new(0., 0., -1.),
0.5,
Box::new(Lambertian::new(Vec3::new(0.1, 0.2, 0.5))),
)),
Box::new(Sphere::new(
Vec3::new(0., -100.5, -1.),
100.,
Box::new(Lambertian::new(Vec3::new(0.8, 0.8, 0.))),
)),
Box::new(Sphere::new(
Vec3::new(1., 0., -1.),
0.5,
Box::new(Metal::new(Vec3::new(0.8, 0.6, 0.2), 0.2)),
)),
Box::new(Sphere::new(
Vec3::new(-1., 0., -1.),
0.5,
Box::new(Dielectric::new(1.5)),
)),
Box::new(Sphere::new(
Vec3::new(-1., 0., -1.),
-0.45,
Box::new(Dielectric::new(1.5)),
)),
]);
//let world = HitableList::new(random_scene());
let (cam, world) = if BOOK_COVER {
let lookfrom = Vec3::new(13., 2., 3.);
let lookat = Vec3::new(0., 0., 0.);
let dist_to_focus = 10.;
let aperture = 0.1;
let cam = Camera::new(
lookfrom,
lookat,
Vec3::new(0., 1., 0.),
20.,
nx as f32 / ny as f32,
aperture,
dist_to_focus,
);
let world = HitableList::new(random_scene());
(cam, world)
} else {
let lookfrom = Vec3::new(3., 3., 2.);
let lookat = Vec3::new(0., 0., -1.);
let dist_to_focus = (lookfrom - lookat).length();
let aperture = 2.;
let cam = Camera::new(
lookfrom,
lookat,
Vec3::new(0., 1., 0.),
20.,
nx as f32 / ny as f32,
aperture,
dist_to_focus,
);
let world = HitableList::new(vec![
Box::new(Sphere::new(
Vec3::new(0., 0., -1.),
0.5,
Box::new(Lambertian::new(Vec3::new(0.1, 0.2, 0.5))),
)),
Box::new(Sphere::new(
Vec3::new(0., -100.5, -1.),
100.,
Box::new(Lambertian::new(Vec3::new(0.8, 0.8, 0.))),
)),
Box::new(Sphere::new(
Vec3::new(1., 0., -1.),
0.5,
Box::new(Metal::new(Vec3::new(0.8, 0.6, 0.2), 0.2)),
)),
Box::new(Sphere::new(
Vec3::new(-1., 0., -1.),
0.5,
Box::new(Dielectric::new(1.5)),
)),
Box::new(Sphere::new(
Vec3::new(-1., 0., -1.),
-0.45,
Box::new(Dielectric::new(1.5)),
)),
]);
(cam, world)
};
println!("P3\n{} {}\n255", nx, ny);
for j in (0..ny).rev() {
for i in 0..nx {