Saumya

Graphics/Saumya_Talera/camera.h

@@ -0,0 +1,22 @@
+#ifndef CAMERAH
+#define CAMERAH
+
+#include "ray.h"
+
+class camera {
+    public:
+        camera() {
+            lower_left_corner = vec3(-2.0, -1.0, -1.0);
+            horizontal = vec3(4.0, 0.0 ,0.0);
+            vertical = vec3(0.0, 2.0, 0.0);
+            origin = vec3(0.0, 0.0, 0.0);
+        }
+        ray get_ray(float u, float v) {return ray(origin, lower_left_corner + u*horizontal + v*vertical - origin);}
+
+        vec3 lower_left_corner;
+        vec3 horizontal;
+        vec3 vertical;
+        vec3 origin;
+};
+
+#endif

Graphics/Saumya_Talera/hitable.h

@@ -0,0 +1,20 @@
+#ifndef HITABLEH
+#define HITABLEH
+
+#include "ray.h"
+
+class material;
+
+struct hit_record {
+    float t;
+    vec3 p;
+    vec3 normal;
+    material *mat_ptr;
+};
+
+class hitable {
+    public:
+        virtual bool hit(const ray& r, float t_min, float t_max, hit_record& rec) const = 0;
+};
+
+#endif

Graphics/Saumya_Talera/hitable_list.h

@@ -0,0 +1,29 @@
+#ifndef HITABLELISTH
+#define HITABLELISTH
+
+#include "hitable.h"
+
+class hitable_list: public hitable {
+    public:
+        hitable_list(){}
+        hitable_list(hitable **l, int n) {list=l;list_size=n;}
+        virtual bool hit(const ray& r, float t_min, float t_max, hit_record& rec) const;
+        hitable **list;
+        int list_size;
+};
+
+bool hitable_list::hit(const ray& r, float t_min, float t_max, hit_record& rec) const {
+    hit_record temp_rec;
+    bool hit_anything = false;
+    double closest_so_far = t_max;
+    for(int i=0;i<list_size;i++) {
+        if(list[i]->hit(r, t_min, closest_so_far, temp_rec)) {
+            hit_anything = true;
+            closest_so_far = temp_rec.t;
+            rec = temp_rec;
+        }
+    }
+    return hit_anything;
+}
+
+#endif