light.cpp

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//
// $Id: light.cpp 2 2008-03-01 20:58:50Z kulibali $
//
// Copyright (c) 2008, The Periapsis Project. All rights reserved. 
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#include "scenegraph/light.hpp"
#include "platform/lowlevel.hpp"

namespace gsgl
{

    using namespace platform;


    namespace scenegraph
    {

        static int num_lights = 0;


        light::light(node *parent)
            : node(string::format(L"light_%d", num_lights++), parent)
        {
        }; // light::light()


        light::~light()
        {
        } // light::~light()


        void light::bind(int light_number)
        {
            glEnable(light_number);
            glLightfv(light_number, GL_AMBIENT, ambient.get_val());
            glLightfv(light_number, GL_DIFFUSE, diffuse.get_val());
            glLightfv(light_number, GL_SPECULAR, specular.get_val());
            glLightfv(light_number, GL_POSITION, math::vector::ZERO.ptr());

            glLightf(light_number, GL_CONSTANT_ATTENUATION, attenuation_constant);
            glLightf(light_number, GL_LINEAR_ATTENUATION, attenuation_linear);
            glLightf(light_number, GL_QUADRATIC_ATTENUATION, attenuation_quadratic);
        } // light::bind()


    } // namespace scenegraph

} // namespace gsgl

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