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New Scene struct

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The scene is more than just a list of hittables. It's any and all
hittables (so the list, yeah), and also the camera(s!) in the world.

This doens't compile, however. More work will need to be done to
untangle the other things that could previously see these scattered
components.
This commit is contained in:
Robert Garrett
2023-09-23 14:40:34 -07:00
parent 7c43c3fb82
commit 60b4407573
2 changed files with 101 additions and 92 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
src/main.rs
View File

@@ -4,7 +4,10 @@ mod renderer;
mod scene;
use crate::primitives::Vec3;
use crate::scene::Camera;
use crate::scene::{
Camera,
Scene
};
use crate::renderer::RenderCommand;
use rand::SeedableRng;
@@ -24,20 +27,19 @@ fn main() {
// random generator
let mut small_rng = SmallRng::seed_from_u64(0);
// world
let world = scene::random_scene(&mut small_rng);
// camera
let cam = Camera::new(
Vec3::new(13.0, 2.0, 3.0), // lookfrom
Vec3::zero(), // lookat
Vec3::new(0.0, 1.0, 0.0), // vup
20.0,
aspect_ratio,
0.1, // aperture
10.0, // dist_to_focus
);
// Scene (now includes camera)
let scene = Scene {
camera: Camera::new(
Vec3::new(13.0, 2.0, 3.0), // lookfrom
Vec3::zero(), // lookat
Vec3::new(0.0, 1.0, 0.0), // vup
20.0,
aspect_ratio,
0.1, // aperture
10.0, // dist_to_focus
),
world: Scene::random_world(&mut small_rng)
};
// render
// The render loop should now be a job submission mechanism

153
src/scene.rs
View File

@@ -228,85 +228,92 @@ impl Camera {
}
}
pub fn random_scene(srng: &mut SmallRng) -> Hittable {
let mat_ground = Material::Lambertian { albedo: Vec3::new(0.5, 0.5, 0.5) };
let mut world = Hittable::HittableList { hittables : Vec::<Hittable>::new() };
world.push( Hittable::Sphere { center: Vec3::new(0.0, -1000.0, 0.0), radius: 1000.0, material: mat_ground });
pub struct Scene {
pub camera: Camera,
pub world: Hittable,
}
let distrib_zero_one = Uniform::new(0.0, 1.0);
for a in -11..11 {
for b in -11..11 {
let choose_mat = srng.sample(distrib_zero_one);
let center = Vec3 {
x: a as f32 + 0.9 * srng.sample(distrib_zero_one),
y: 0.2,
z: b as f32 + 0.9 * srng.sample(distrib_zero_one),
};
if (center - Vec3::new(4.0, 0.2, 0.0)).length() > 0.9 {
impl Scene {
pub fn random_world(srng: &mut SmallRng) -> Hittable {
let mat_ground = Material::Lambertian { albedo: Vec3::new(0.5, 0.5, 0.5) };
let mut world = Hittable::HittableList { hittables : Vec::<Hittable>::new() };
if choose_mat < 0.8 {
// diffuse
let albedo = Vec3::rand(srng, distrib_zero_one) * Vec3::rand(srng, distrib_zero_one);
let sphere_material = Material::Lambertian { albedo };
world.push(
Hittable::Sphere {
center,
radius: 0.2,
material: sphere_material,
}
);
} else if choose_mat < 0.95 {
// metal
let distr_albedo = Uniform::new(0.5, 1.0);
let distr_fuzz = Uniform::new(0.0, 0.5);
let albedo = Vec3::rand(srng, distr_albedo);
let fuzz = srng.sample(distr_fuzz);
let material = Material::Metal { albedo, fuzz };
world.push(
Hittable::Sphere {
center,
radius: 0.2,
material: material,
}
);
} else {
// glass
let material = Material::Dielectric { index_refraction: 1.5 };
world.push(
Hittable::Sphere{
center,
radius: 0.2,
material: material,
}
);
world.push( Hittable::Sphere { center: Vec3::new(0.0, -1000.0, 0.0), radius: 1000.0, material: mat_ground });
let distrib_zero_one = Uniform::new(0.0, 1.0);
for a in -11..11 {
for b in -11..11 {
let choose_mat = srng.sample(distrib_zero_one);
let center = Vec3 {
x: a as f32 + 0.9 * srng.sample(distrib_zero_one),
y: 0.2,
z: b as f32 + 0.9 * srng.sample(distrib_zero_one),
};
if (center - Vec3::new(4.0, 0.2, 0.0)).length() > 0.9 {
if choose_mat < 0.8 {
// diffuse
let albedo = Vec3::rand(srng, distrib_zero_one) * Vec3::rand(srng, distrib_zero_one);
let sphere_material = Material::Lambertian { albedo };
world.push(
Hittable::Sphere {
center,
radius: 0.2,
material: sphere_material,
}
);
} else if choose_mat < 0.95 {
// metal
let distr_albedo = Uniform::new(0.5, 1.0);
let distr_fuzz = Uniform::new(0.0, 0.5);
let albedo = Vec3::rand(srng, distr_albedo);
let fuzz = srng.sample(distr_fuzz);
let material = Material::Metal { albedo, fuzz };
world.push(
Hittable::Sphere {
center,
radius: 0.2,
material: material,
}
);
} else {
// glass
let material = Material::Dielectric { index_refraction: 1.5 };
world.push(
Hittable::Sphere{
center,
radius: 0.2,
material: material,
}
);
};
}
}
}
let material1 = Material::Dielectric { index_refraction: 1.5 };
world.push( Hittable::Sphere{
center: Vec3::new(0.0, 1.0, 0.0),
radius: 1.0,
material: material1
});
let material2 = Material::Lambertian { albedo: Vec3::new(0.4, 0.2, 0.1) };
world.push( Hittable::Sphere {
center: Vec3::new(-4.0, 1.0, 0.0),
radius: 1.0,
material: material2
});
let material3 = Material::Metal { albedo: Vec3::new(0.7, 0.6, 0.5), fuzz: 0.0 };
world.push( Hittable::Sphere {
center: Vec3::new(4.0, 1.0, 0.0),
radius: 1.0,
material: material3
});
world
}
let material1 = Material::Dielectric { index_refraction: 1.5 };
world.push( Hittable::Sphere{
center: Vec3::new(0.0, 1.0, 0.0),
radius: 1.0,
material: material1
});
let material2 = Material::Lambertian { albedo: Vec3::new(0.4, 0.2, 0.1) };
world.push( Hittable::Sphere {
center: Vec3::new(-4.0, 1.0, 0.0),
radius: 1.0,
material: material2
});
let material3 = Material::Metal { albedo: Vec3::new(0.7, 0.6, 0.5), fuzz: 0.0 };
world.push( Hittable::Sphere {
center: Vec3::new(4.0, 1.0, 0.0),
radius: 1.0,
material: material3
});
return world;
}