desc.scene

decl sphere (
    center: vec3(0.0, 0.0, -4.0),
    radius: 0.5,
    material: lambertian(albedo: vec3(0.8, 0.3, 0.3)),
    // material: light(emittance: vec3(1.0, 0.3, 0.3)),
);

decl sphere (
    center: vec3(1.0, 0.0, -4.0),
    radius: 0.5,
    material: metal(albedo: vec3(0.8, 0.6, 0.2), fuzz: 0.2),
);

decl sphere (
    center: vec3(-1.0, 0.0, -3.5),
    radius: 0.5,
    material: metal(albedo: vec3(0.8, 0.8, 0.8)),
);

decl sphere (
    center: vec3(12.0, 12.0, -2.0),
    radius: 3.0,
    material: light(),
);

decl sphere (
    center: vec3(0.0, 2.0, 5.0),
    radius: 3.0,
    material: light(),
);

let white_mat = lambertian(albedo: vec3(0.73));

decl plane (
    point: vec3(0.0, -0.5, 0.0),
    normal: vec3(0.0, 1.0, 0.0),
    material: white_mat,
);

decl plane (
    point: vec3(0.0, 2.0, 0.0),
    normal: vec3(0.0, -1.0, 0.0),
    material: white_mat,
);

decl plane (
    point: vec3(0.0, 0.0, -7.0),
    normal: vec3(0.0, 0.0, 1.0),
    material: white_mat,
);

decl plane (
    point: vec3(-2.5, 0.0, 0.0),
    normal: vec3(1.0, 0.0, 0.0),
    material: lambertian(albedo: vec3(0.12, 0.45, 0.15)),
);

decl plane (
    point: vec3(2.5, 0.0, 0.0),
    normal: vec3(-1.0, 0.0, 0.0),
    material: lambertian(albedo: vec3(0.65, 0.05, 0.05)),
);

preset default {
    width: 800,
    height: 600,
    look_from: vec3(0.0, 1.0, 0.0),
    look_at: vec3(0.0, 0.0, -4.0),
    up: vec3(0.0, 1.0, 0.0),
    vfov: 90.0,
    sample_count: 1,
    max_depth: 1,
};


preset complete {
    width: 800,
    height: 600,
    look_from: vec3(0.0, 1.0, 0.0),
    look_at: vec3(0.0, 0.0, -4.0),
    up: vec3(0.0, 1.0, 0.0),
    vfov: 90.0,
    sample_count: 128,
    max_depth: 3,
};