Phireh/cpp-raytracer
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Add material support

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This commit is contained in:
Phireh 2021-08-22 17:24:33 +02:00
commit 58ffcff459
7 changed files with 112 additions and 36 deletions
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25
main.cpp
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@ -21,8 +21,16 @@ color ray_color(const ray& r, const hittable& world, int32_t depth)
hit_record rec;
if (world.hit(r, 0.001, INFINITY, rec))
{
point3 target = rec.p + rec.normal + random_in_hemisphere(rec.normal);
return 0.5 * ray_color(ray(rec.p, target - rec.p), world, depth-1);
ray scattered;
color attenuation;
if (rec.mat_ptr->scatter(r, rec, attenuation, scattered))
{
return attenuation * ray_color(scattered, world, depth-1);
}
else
{
return color(0,0,0);
}
}
vec3 unit_direction = normalize(r.direction);
double t = 0.5 * (unit_direction.y + 1.0);
@ -64,8 +72,17 @@ int main()
// World
hittable_list world;
world.add(std::make_shared<sphere>(point3(0,0,-1), 0.5));
world.add(std::make_shared<sphere>(point3(0,-100.5,-1), 100));
std::shared_ptr<lambertian> material_ground = make_shared<lambertian>(color(0.8, 0.8, 0.0));
std::shared_ptr<lambertian> material_center = make_shared<lambertian>(color(0.7, 0.3, 0.3));
std::shared_ptr<metal> material_left = make_shared<metal>(color(0.8, 0.8, 0.8));
std::shared_ptr<metal> material_right = make_shared<metal>(color(0.8, 0.6, 0.2));
world.add(make_shared<sphere>(point3( 0.0, -100.5, -1.0), 100.0, material_ground));
world.add(make_shared<sphere>(point3( 0.0, 0.0, -1.0), 0.5, material_center));
world.add(make_shared<sphere>(point3(-1.0, 0.0, -1.0), 0.5, material_left));
world.add(make_shared<sphere>(point3( 1.0, 0.0, -1.0), 0.5, material_right));
// Camera
camera cam;