109 lines
3.1 KiB
Rust
109 lines
3.1 KiB
Rust
use std::time::Instant;
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use anyhow::Result;
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use structopt::StructOpt;
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use rtchallenge::{
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camera::{Camera, RenderStrategy},
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float::consts::PI,
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lights::PointLight,
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materials::Material,
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matrices::Matrix4x4,
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spheres::Sphere,
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transformations::view_transform,
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tuples::{Color, Tuple},
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world::World,
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WHITE,
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};
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/// End of chapter 8 challenge.
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#[derive(StructOpt, Debug)]
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#[structopt(name = "eoc8")]
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struct Opt {
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#[structopt(long, default_value = "rayon")]
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render_strategy: RenderStrategy,
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}
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fn main() -> Result<()> {
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let start = Instant::now();
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let opt = Opt::from_args();
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let width = 2560;
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let height = 1440;
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let light_position = Tuple::point(-10., 10., -10.);
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let light_color = WHITE;
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let light = PointLight::new(light_position, light_color);
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let mut camera = Camera::new(width, height, PI / 4.);
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let from = Tuple::point(0., 1.5, -5.);
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let to = Tuple::point(0., 1., 0.);
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let up = Tuple::point(0., 1., 0.);
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camera.set_transform(view_transform(from, to, up));
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camera.render_strategy = opt.render_strategy;
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let mut floor = Sphere::default();
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floor.set_transform(Matrix4x4::scaling(10., 0.01, 10.));
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floor.material = Material {
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color: Color::new(1., 0.9, 0.9),
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specular: 0.,
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..Material::default()
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};
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let mut left_wall = Sphere::default();
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left_wall.set_transform(
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Matrix4x4::translation(0., 0., 5.)
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* Matrix4x4::rotation_y(-PI / 4.)
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* Matrix4x4::rotation_x(PI / 2.)
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* Matrix4x4::scaling(10., 0.01, 10.),
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);
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left_wall.material = floor.material.clone();
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let mut right_wall = Sphere::default();
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right_wall.set_transform(
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Matrix4x4::translation(0., 0., 5.)
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* Matrix4x4::rotation_y(PI / 4.)
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* Matrix4x4::rotation_x(PI / 2.)
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* Matrix4x4::scaling(10., 0.00001, 10.),
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);
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right_wall.material = floor.material.clone();
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let mut middle = Sphere::default();
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middle.set_transform(Matrix4x4::translation(-0.5, 1., 0.5));
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middle.material = Material {
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color: Color::new(0.1, 1., 0.5),
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diffuse: 0.7,
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specular: 0.3,
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..Material::default()
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};
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let mut right = Sphere::default();
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right.set_transform(Matrix4x4::translation(1.5, 0.5, -0.5) * Matrix4x4::scaling(0.5, 0.5, 0.5));
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right.material = Material {
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color: Color::new(0.5, 1., 0.1),
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diffuse: 0.7,
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specular: 0.3,
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..Material::default()
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};
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let mut left = Sphere::default();
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left.set_transform(
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Matrix4x4::translation(-1.5, 0.33, -0.75) * Matrix4x4::scaling(0.33, 0.33, 0.33),
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);
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left.material = Material {
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color: Color::new(1., 0.8, 0.1),
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diffuse: 0.7,
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specular: 0.3,
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..Material::default()
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};
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let mut world = World::default();
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world.light = Some(light);
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world.objects = vec![floor, left_wall, right_wall, middle, right, left];
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let image = camera.render(&world);
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let path = "/tmp/eoc8.png";
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println!("saving output to {}", path);
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image.write_to_file(path)?;
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println!("Render time {:.3} seconds", start.elapsed().as_secs_f32());
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Ok(())
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}
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