implementation of first 9 chapters of raytracing in a weekend

Graphics/Aman/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 origin;
+        vec3 vertical;
+        vec3 horizontal;    
+};
+
+#endif

Graphics/Aman/chap1.cpp

@@ -0,0 +1,24 @@
+#include <fstream>
+#include <iostream>
+
+int main(){
+    int nx=200;
+    int ny=100;
+    std::ofstream fout("chap1.ppm");
+    if(fout.fail()) return -1;
+
+    fout <<"P3\n" << nx << " " << ny << "\n255\n";
+    for(int j= ny-1;j>=0;j--){
+        for(int i=0;i<nx;i++){
+            float r = float(i)/float(nx);
+            float g = float(j)/float(ny);
+            float b = 0.2;
+            int ir= int(255.99*r);
+            int ig = int(255.99*g);
+            int ib = int(255.99*b);
+            fout<< ir <<" "<<ig<<" "<<ib<<"\n";
+        }
+    }
+    std::cout<<"Successful\n";
+    return 0;
+}