shading.hpp
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1 /*
2 ** TP CPE Lyon
3 ** Copyright (C) 2013 Damien Rohmer
4 **
5 ** This program is free software: you can redistribute it and/or modify
6 ** it under the terms of the GNU General Public License as published by
7 ** the Free Software Foundation, either version 3 of the License, or
8 ** (at your option) any later version.
9 **
10 ** This program is distributed in the hope that it will be useful,
11 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
12 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 ** GNU General Public License for more details.
14 **
15 ** You should have received a copy of the GNU General Public License
16 ** along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18 
19 
20 
21 #ifndef SHADING_HPP
22 #define SHADING_HPP
23 
24 #include <color.hpp>
25 #include <vec3.hpp>
26 #include <vertex.hpp>
27 
28 namespace cpe
29 {
30 
32 struct shading
33 {
35  shading(float ambiant=0.1,float diffuse=0.6,float specular=0.4,float specular_exponent=2.0);
36 
37 
39  float ambiant;
41  float diffuse;
43  float specular;
46 
47 };
48 
49 
51 color apply_shading(const vec3& p,const vec3& n,const color& c,const vec3& light_position,const vec3& camera_position,const shading& shad);
52 
53 }
54 
55 #endif