| Geant4 Cross Reference |
1 // Copyright (C) 2010, Guy Barrand. All rights
2 // See the file tools.license for terms.
3
4 #ifndef tools_sg_head_light
5 #define tools_sg_head_light
6
7 // Directional light following cam direction.
8 // It should come after a camera node.
9
10 #include "torche"
11
12 namespace tools {
13 namespace sg {
14
15 class head_light : public torche {
16 TOOLS_NODE(head_light,tools::sg::head_light,
17 public:
18 virtual void render(render_action& a_action)
19 if(!on.value()) return;
20 state& state = a_action.state();
21 if((state.m_light+1)>=a_action.max_lights(
22 a_action.out()
23 << "GL_MAX_LIGHTS (" << a_action.max_l
24 << std::endl;
25 return;
26 }
27 float dx = direction.value()[0];
28 float dy = direction.value()[1];
29 float dz = direction.value()[2];
30 {mat4f mtx;
31 state.m_camera_orientation.value(mtx);
32 mtx.mul_dir_3f(dx,dy,dz);}
33 state.m_GL_LIGHTING = true;
34 a_action.enable_light(state.m_light,vec3f(
35 state.m_light++;
36 }
37 public:
38 head_light():torche(){}
39 virtual ~head_light(){}
40 public:
41 head_light(const head_light& a_from):torche(
42 head_light& operator=(const head_light& a_fr
43 torche::operator=(a_from);
44 return *this;
45 }
46 };
47
48 }}
49
50 #endif