+++ /dev/null
-#include <stdexcept>
-#include "light.h"
-#include "lightunit.h"
-#include "misc.h"
-
-using namespace std;
-
-namespace Msp {
-namespace GL {
-
-Light::Light():
- diffuse(1),
- specular(1),
- position(0, 0, 1, 0),
- spot_dir(0, 0, -1),
- spot_exp(0),
- spot_cutoff(180)
-{
- attenuation[0] = 1;
- attenuation[1] = 0;
- attenuation[2] = 0;
-}
-
-void Light::update_parameter(int mask, int index) const
-{
- if(index<0)
- {
- LightUnit *unit = LightUnit::find_unit(this);
- if(!unit)
- return;
-
- index = unit->get_index();
- }
-
- GLenum l = GL_LIGHT0+index;
- if(mask&DIFFUSE)
- glLightfv(l, GL_DIFFUSE, &diffuse.r);
- if(mask&SPECULAR)
- glLightfv(l, GL_SPECULAR, &specular.r);
- if(mask&POSITION)
- glLightfv(l, GL_POSITION, &position.x);
- if(mask&SPOT_DIR)
- glLightfv(l, GL_SPOT_DIRECTION, &spot_dir.x);
- if(mask&SPOT_EXP)
- glLightf(l, GL_SPOT_EXPONENT, spot_exp);
- if(mask&SPOT_CUTOFF)
- glLightf(l, GL_SPOT_CUTOFF, spot_cutoff);
- if(mask&ATTENUATION)
- {
- glLightf(l, GL_CONSTANT_ATTENUATION, attenuation[0]);
- glLightf(l, GL_LINEAR_ATTENUATION, attenuation[1]);
- glLightf(l, GL_QUADRATIC_ATTENUATION, attenuation[2]);
- }
-}
-
-void Light::set_diffuse(const Color &c)
-{
- diffuse = c;
- update_parameter(DIFFUSE);
-}
-
-void Light::set_specular(const Color &c)
-{
- specular = c;
- update_parameter(SPECULAR);
-}
-
-void Light::set_position(const Vector4 &p)
-{
- position = p;
- update_parameter(POSITION);
-}
-
-void Light::set_spot_direction(const Vector3 &d)
-{
- spot_dir = d;
- update_parameter(SPOT_DIR);
-}
-
-void Light::set_spot_exponent(float e)
-{
- spot_exp = e;
- update_parameter(SPOT_EXP);
-}
-
-void Light::set_spot_cutoff(float c)
-{
- spot_cutoff = c;
- update_parameter(SPOT_CUTOFF);
-}
-
-void Light::set_attenuation(float c, float l, float q)
-{
- attenuation[0] = c;
- attenuation[1] = l;
- attenuation[2] = q;
- update_parameter(ATTENUATION);
-}
-
-void Light::bind_to(unsigned i) const
-{
- LightUnit &unit = LightUnit::get_unit(i);
- if(unit.set_light(this))
- {
- enable(GL_LIGHT0+unit.get_index());
- update_parameter(-1, unit.get_index());
- }
-}
-
-const Light *Light::current(unsigned i)
-{
- return LightUnit::get_unit(i).get_light();
-}
-
-void Light::unbind_from(unsigned i)
-{
- LightUnit &unit = LightUnit::get_unit(i);
- if(unit.set_light(0))
- disable(GL_LIGHT0+unit.get_index());
-}
-
-} // namespace GL
-} // namespace Msp