Warning, /include/Geant4/tools/sg/head_light is written in an unsupported language. File is not indexed.
0001 // Copyright (C) 2010, Guy Barrand. All rights reserved.
0002 // See the file tools.license for terms.
0003
0004 #ifndef tools_sg_head_light
0005 #define tools_sg_head_light
0006
0007 // Directional light following cam direction.
0008 // It should come after a camera node.
0009
0010 #include "torche"
0011
0012 namespace tools {
0013 namespace sg {
0014
0015 class head_light : public torche {
0016 TOOLS_NODE(head_light,tools::sg::head_light,torche)
0017 public:
0018 virtual void render(render_action& a_action) {
0019 if(!on.value()) return;
0020 state& state = a_action.state();
0021 if((state.m_light+1)>=a_action.max_lights()) {
0022 a_action.out()
0023 << "GL_MAX_LIGHTS (" << a_action.max_lights() << ") reached."
0024 << std::endl;
0025 return;
0026 }
0027 float dx = direction.value()[0];
0028 float dy = direction.value()[1];
0029 float dz = direction.value()[2];
0030 {mat4f mtx;
0031 state.m_camera_orientation.value(mtx);
0032 mtx.mul_dir_3f(dx,dy,dz);}
0033 state.m_GL_LIGHTING = true;
0034 a_action.enable_light(state.m_light,vec3f(dx,dy,dz),color.value(),ambient.value());
0035 state.m_light++;
0036 }
0037 public:
0038 head_light():torche(){}
0039 virtual ~head_light(){}
0040 public:
0041 head_light(const head_light& a_from):torche(a_from){}
0042 head_light& operator=(const head_light& a_from){
0043 torche::operator=(a_from);
0044 return *this;
0045 }
0046 };
0047
0048 }}
0049
0050 #endif
