| rev |
line source |
|
nuclear@0
|
1 #ifndef BRDF_H_
|
|
nuclear@0
|
2 #define BRDF_H_
|
|
nuclear@0
|
3
|
|
nuclear@0
|
4 #include <map>
|
|
nuclear@0
|
5 #include <string>
|
|
nuclear@0
|
6 #include "color.h"
|
|
nuclear@0
|
7 #include "texture.h"
|
|
nuclear@0
|
8
|
|
nuclear@0
|
9 class ReflAttrib {
|
|
nuclear@0
|
10 private:
|
|
nuclear@0
|
11 float value;
|
|
nuclear@0
|
12 Color color;
|
|
nuclear@0
|
13 Texture *map;
|
|
nuclear@0
|
14
|
|
nuclear@0
|
15 public:
|
|
nuclear@0
|
16
|
|
nuclear@0
|
17 ReflAttrib();
|
|
nuclear@0
|
18 explicit ReflAttrib(const Color &color, Texture *tex = 0);
|
|
nuclear@0
|
19
|
|
nuclear@0
|
20 void set_value(float val);
|
|
nuclear@0
|
21 void set_color(const Color &col);
|
|
nuclear@0
|
22
|
|
nuclear@0
|
23 void set_map(Texture *tex);
|
|
nuclear@0
|
24 Texture *get_map() const;
|
|
nuclear@0
|
25
|
|
nuclear@0
|
26 float get_value() const;
|
|
nuclear@0
|
27 float get_value(float u, float v) const;
|
|
nuclear@0
|
28 const Color &get_color() const;
|
|
nuclear@0
|
29 Color get_color(float u, float v) const;
|
|
nuclear@0
|
30 };
|
|
nuclear@0
|
31
|
|
nuclear@0
|
32
|
|
nuclear@0
|
33 class Reflectance {
|
|
nuclear@0
|
34 private:
|
|
nuclear@0
|
35 static ReflAttrib def_attrib;
|
|
nuclear@0
|
36 std::map<std::string, ReflAttrib> attrib;
|
|
nuclear@0
|
37
|
|
nuclear@0
|
38 virtual void set_default_attribs();
|
|
nuclear@0
|
39
|
|
nuclear@0
|
40 public:
|
|
nuclear@0
|
41 Reflectance();
|
|
nuclear@0
|
42 virtual ~Reflectance() = default;
|
|
nuclear@0
|
43
|
|
nuclear@0
|
44 virtual void set_attrib(const char *name, const Color &color, Texture *tex = 0);
|
|
nuclear@0
|
45 virtual ReflAttrib &get_attrib(const char *name);
|
|
nuclear@0
|
46 virtual const ReflAttrib &get_attrib(const char *name) const;
|
|
nuclear@0
|
47
|
|
nuclear@0
|
48 virtual float get_attrib_value(const char *name) const;
|
|
nuclear@0
|
49 virtual float get_attrib_value(const char *name, float u, float v) const;
|
|
nuclear@0
|
50 virtual Color get_attrib_color(const char *name) const;
|
|
nuclear@0
|
51 virtual Color get_attrib_color(const char *name, float u, float v) const;
|
|
nuclear@0
|
52
|
|
nuclear@0
|
53 virtual Vector3 sample_dir(const Vector3 &norm, const Vector3 &outdir) const = 0;
|
|
nuclear@0
|
54 virtual float sample(const Vector3 &norm, const Vector3 &outdir, Vector3 *indir) const;
|
|
nuclear@0
|
55 virtual float eval(const Vector3 &norm, const Vector3 &outdir, const Vector3 &indir) const = 0;
|
|
nuclear@0
|
56 };
|
|
nuclear@0
|
57
|
|
nuclear@0
|
58 class LambertRefl : public Reflectance {
|
|
nuclear@0
|
59 private:
|
|
nuclear@0
|
60 void set_default_attribs() override;
|
|
nuclear@0
|
61
|
|
nuclear@0
|
62 public:
|
|
nuclear@0
|
63 Vector3 sample_dir(const Vector3 &norm, const Vector3 &outdir) const override;
|
|
nuclear@0
|
64 float eval(const Vector3 &norm, const Vector3 &outdir, const Vector3 &indir) const override;
|
|
nuclear@0
|
65 };
|
|
nuclear@0
|
66
|
|
nuclear@0
|
67 #endif // BRDF_H_ |
