Gabriele Cosmo
51 lines
1.2 KiB
Plaintext
51 lines
1.2 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
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// See the file tools.license for terms.
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#ifndef tools_sg_head_light
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#define tools_sg_head_light
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// Directional light following cam direction.
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// It should come after a camera node.
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#include "torche"
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namespace tools {
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namespace sg {
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class head_light : public torche {
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TOOLS_NODE(head_light,tools::sg::head_light,torche)
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public:
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virtual void render(render_action& a_action) {
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if(!on.value()) return;
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state& state = a_action.state();
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if((state.m_light+1)>=a_action.max_lights()) {
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a_action.out()
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<< "GL_MAX_LIGHTS (" << a_action.max_lights() << ") reached."
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<< std::endl;
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return;
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}
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float dx = direction.value()[0];
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float dy = direction.value()[1];
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float dz = direction.value()[2];
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{mat4f mtx;
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state.m_camera_orientation.value(mtx);
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mtx.mul_dir_3f(dx,dy,dz);}
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state.m_GL_LIGHTING = true; //for separator
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a_action.enable_light(state.m_light,vec3f(dx,dy,dz),color.value());
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state.m_light++;
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}
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public:
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head_light():torche(){}
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virtual ~head_light(){}
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public:
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head_light(const head_light& a_from):torche(a_from){}
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head_light& operator=(const head_light& a_from){
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torche::operator=(a_from);
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return *this;
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}
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};
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}}
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#endif
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