Listing 54 A new scene with quads

Author: hollasch

src/TheNextWeek/main.cc

@@ -16,6 +16,7 @@
 #include "hittable.h"
 #include "hittable_list.h"
 #include "material.h"
+#include "quad.h"
 #include "sphere.h"
 #include "texture.h"
 
@@ -155,11 +156,46 @@ void perlin_spheres() {
     cam.render(world);
 }
 
+void quads() {
+    hittable_list world;
+
+    // Materials
+    auto left_red     = make_shared<lambertian>(color(1.0, 0.2, 0.2));
+    auto back_green   = make_shared<lambertian>(color(0.2, 1.0, 0.2));
+    auto right_blue   = make_shared<lambertian>(color(0.2, 0.2, 1.0));
+    auto upper_orange = make_shared<lambertian>(color(1.0, 0.5, 0.0));
+    auto lower_teal   = make_shared<lambertian>(color(0.2, 0.8, 0.8));
+
+    // Quads
+    world.add(make_shared<quad>(point3(-3,-2, 5), vec3(0, 0,-4), vec3(0, 4, 0), left_red));
+    world.add(make_shared<quad>(point3(-2,-2, 0), vec3(4, 0, 0), vec3(0, 4, 0), back_green));
+    world.add(make_shared<quad>(point3( 3,-2, 1), vec3(0, 0, 4), vec3(0, 4, 0), right_blue));
+    world.add(make_shared<quad>(point3(-2, 3, 1), vec3(4, 0, 0), vec3(0, 0, 4), upper_orange));
+    world.add(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.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);
+}
+
 int main() {
-    switch (4) {
+    switch (5) {
         case 1:  bouncing_spheres();  break;
         case 2:  checkered_spheres(); break;
         case 3:  earth();             break;
         case 4:  perlin_spheres();    break;
+        case 5:  quads();             break;
     }
 }