-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathmain.cpp
More file actions
157 lines (123 loc) · 5.53 KB
/
Copy pathmain.cpp
File metadata and controls
157 lines (123 loc) · 5.53 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
#include <vector>
#include <cstdint>
#include "common.h"
#include "bvh.h"
#include "camera.h"
#include "hittable.h"
#include "hittable_list.h"
#include "sphere.h"
#include "texture.h"
#include "quad.h"
void bouncing_spheres() {
// World
hittable_list world;
auto checker = std::make_shared<checker_texture>(0.32, color(.2, .3, .1), color(.9, .9, .9));
world.add(std::make_shared<sphere>(point3(0,-1000,0), 1000, std::make_shared<lambertian>(checker)));
for (int a = -11; a < 11; a++) {
for (int b = -11; b < 11; b++) {
auto choose_mat = random_double();
point3 center(a + 0.9*random_double(), 0.2, b + 0.9*random_double());
if ((center - point3(4, 0.2, 0)).length() > 0.9) {
std::shared_ptr<material> sphere_material;
if (choose_mat < 0.8) {
// diffuse
auto albedo = color::random() * color::random();
sphere_material = std::make_shared<lambertian>(albedo);
auto center2 = center + vec3(0, random_double(0,.5), 0);
world.add(std::make_shared<sphere>(center, center2, 0.2, sphere_material));
} else if (choose_mat < 0.95) {
// metal
auto albedo = color::random(0.5, 1);
auto fuzz = random_double(0, 0.5);
sphere_material = std::make_shared<metal>(albedo, fuzz);
world.add(std::make_shared<sphere>(center, 0.2, sphere_material));
} else {
// glass
sphere_material = std::make_shared<dielectric>(1.5);
world.add(std::make_shared<sphere>(center, 0.2, sphere_material));
}
}
}
}
auto material1 = std::make_shared<dielectric>(1.5);
world.add(std::make_shared<sphere>(point3(0, 1, 0), 1.0, material1));
auto material2 = std::make_shared<lambertian>(color(0.4, 0.2, 0.1));
world.add(std::make_shared<sphere>(point3(-4, 1, 0), 1.0, material2));
auto material3 = std::make_shared<metal>(color(0.7, 0.6, 0.5), 0.0);
world.add(std::make_shared<sphere>(point3(4, 1, 0), 1.0, material3));
world = hittable_list(std::make_shared<bvh_node>(world));
camera cam;
cam.aspect_ratio = 16.0 / 9.0;
cam.image_width = 400;
cam.samples_per_pixel = 100;
cam.max_depth = 50;
cam.background = color(0.70, 0.80, 1.00);
cam.vfov = 20;
cam.lookfrom = point3(13,2,3);
cam.lookat = point3(0,0,0);
cam.vup = vec3(0,1,0);
cam.defocus_angle = 0.6;
cam.focus_dist = 10.0;
cam.render(world, "../output.png");
}
void quads() {
hittable_list world;
// Materials
auto left_red = std::make_shared<lambertian>(color(1.0, 0.2, 0.2));
auto back_green = std::make_shared<lambertian>(color(0.2, 1.0, 0.2));
auto right_blue = std::make_shared<lambertian>(color(0.2, 0.2, 1.0));
auto upper_orange = std::make_shared<lambertian>(color(1.0, 0.5, 0.0));
auto lower_teal = std::make_shared<lambertian>(color(0.2, 0.8, 0.8));
// Quads
world.add(std::make_shared<quad>(point3(-3,-2, 5), vec3(0, 0,-4), vec3(0, 4, 0), left_red));
world.add(std::make_shared<quad>(point3(-2,-2, 0), vec3(4, 0, 0), vec3(0, 4, 0), back_green));
world.add(std::make_shared<quad>(point3( 3,-2, 1), vec3(0, 0, 4), vec3(0, 4, 0), right_blue));
world.add(std::make_shared<quad>(point3(-2, 3, 1), vec3(4, 0, 0), vec3(0, 0, 4), upper_orange));
world.add(std::make_shared<quad>(point3(-2,-3, 5), vec3(4, 0, 0), vec3(0, 0,-4), lower_teal));
camera cam;
cam.aspect_ratio = 1.0;
cam.image_width = 400;
cam.samples_per_pixel = 100;
cam.max_depth = 50;
cam.background = color(0.70, 0.80, 1.00);
cam.vfov = 80;
cam.lookfrom = point3(0,0,9);
cam.lookat = point3(0,0,0);
cam.vup = vec3(0,1,0);
cam.defocus_angle = 0;
cam.render(world, "../output.png");
}
void cornell_box() {
hittable_list world;
auto red = std::make_shared<lambertian>(color(.65, .05, .05));
auto white = std::make_shared<lambertian>(color(.73, .73, .73));
auto green = std::make_shared<lambertian>(color(.12, .45, .15));
auto light = std::make_shared<diffuse_light>(color(15, 15, 15));
world.add(std::make_shared<quad>(point3(555,0,0), vec3(0,555,0), vec3(0,0,555), green));
world.add(std::make_shared<quad>(point3(0,0,0), vec3(0,555,0), vec3(0,0,555), red));
world.add(std::make_shared<quad>(point3(343, 554, 332), vec3(-130,0,0), vec3(0,0,-105), light));
world.add(std::make_shared<quad>(point3(0,0,0), vec3(555,0,0), vec3(0,0,555), white));
world.add(std::make_shared<quad>(point3(555,555,555), vec3(-555,0,0), vec3(0,0,-555), white));
world.add(std::make_shared<quad>(point3(0,0,555), vec3(555,0,0), vec3(0,555,0), white));
world.add(box(point3(130, 0, 65), point3(295, 165, 230), white));
world.add(box(point3(265, 0, 295), point3(430, 330, 460), white));
camera cam;
cam.aspect_ratio = 1.0;
cam.image_width = 600;
cam.samples_per_pixel = 200;
cam.max_depth = 50;
cam.background = color(0,0,0);
cam.vfov = 40;
cam.lookfrom = point3(278, 278, -800);
cam.lookat = point3(278, 278, 0);
cam.vup = vec3(0,1,0);
cam.defocus_angle = 0;
cam.render(world, "../output.png");
}
int main() {
switch (7) {
case 1: bouncing_spheres(); break;
case 5: quads(); break;
case 7: cornell_box(); break;
}
}