1 #ifndef CG_HEIGHTFIELD_H
2 #define CG_HEIGHTFIELD_H
3
4 #include "util.h"
5 #include "cgapplication.h"
6 #include <time.h>
7
8 // Ray Tracer Class
9 class CGRayTracer : public CGApplication {
10 public:
11
12 // CGRayTracer, ~CGRayTracer
13 CGRayTracer(unsigned int x, unsigned int y);
14 virtual ~CGRayTracer();
15
16 virtual void onInit();
17 virtual void onDraw();
18 virtual void onIdle();
19 virtual void onKey(unsigned char key);
20 virtual void onSize(unsigned int newWidth, unsigned int newHeight);
21
22 // createImage
23 void createImage(int width, int height);
24 void writeImage(char* fileName);
25
26 // use shadows
27 bool shadows_;
28 // max recursion depth
29 int maxDepth_;
30 int nTests_;
31
32 private:
33 // phongIlluminationColor
34 Color phongIlluminationColor(
35 const Vector& point,
36 const Vector& normal,
37 Material* material);
38
39 // writePPMPixel
40 void writePPMPixel(const Color& c);
41
42 // rayTrace
43 Color rayTrace(const Ray& r, int nDepth=1);
44
45 // add an object to the scene
46 void AddObject(Shape* shape, Material* material);
47
48 // shape and material array
49 int shapeSize_;
50 Shape** shape_;
51 Material** material_;
52
53 // light array
54 int lightSize_;
55 Light** light_;
56
57 // camera
58 Camera* camera_;
59
60 // dimension of viewport
61 int width_;
62 int height_;
63
64 // memory buffer
65 unsigned int imagex_, imagey_;
66 Color* image_;
67 int detail_;
68 bool antialias_;
69
70 // file
71 ofstream* out_;
72
73 // timer
74 clock_t start_;
75 };
76
77 #endif // CG_HeightField_H
78
79