FGFS-4.1/OpenSceneGraph
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Initial revision

Browse Source
This commit is contained in:
Don BURNS
2001-01-10 16:32:10 +00:00
parent 7c12eb9361
commit 70208ebc06
461 changed files with 70936 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

97
src/osg/Light.cpp Normal file
View File

@@ -0,0 +1,97 @@
#include "osg/Light"
#include "osg/Notify"
using namespace osg;
int Light::_currentLightNum = -1;
Light::Light( void )
{
_lightnum = ++_currentLightNum;
_on = 1;
init();
// notify(DEBUG) << "_ambient "<<_ambient<<endl;
// notify(DEBUG) << "_diffuse "<<_diffuse<<endl;
// notify(DEBUG) << "_specular "<<_specular<<endl;
// notify(DEBUG) << "_position "<<_position<<endl;
// notify(DEBUG) << "_direction "<<_direction<<endl;
// notify(DEBUG) << "_spot_exponent "<<_spot_exponent<<endl;
// notify(DEBUG) << "_spot_cutoff "<<_spot_cutoff<<endl;
// notify(DEBUG) << "_constant_attenuation "<<_constant_attenuation<<endl;
// notify(DEBUG) << "_linear_attenuation "<<_linear_attenuation<<endl;
// notify(DEBUG) << "_quadratic_attenuation "<<_quadratic_attenuation<<endl;
}
Light::~Light( void )
{
}
Light* Light::instance()
{
static ref_ptr<Light> s_Light(new Light);
return s_Light.get();
}
void Light::init( void )
{
_ambient.set(0.05f,0.05f,0.05f,1.0f);
_diffuse.set(0.8f,0.8f,0.8f,1.0f);
_specular.set(0.05f,0.05f,0.05f,1.0f);
_position.set(0.0f,0.0f,1.0f,0.0f);
_direction.set(0.0f,0.0f,-1.0f);
_spot_exponent = 0.0f;
_spot_cutoff = 180.0f;
_constant_attenuation = 1.0f;
_linear_attenuation = 0.0f;
_quadratic_attenuation = 0.0f;
}
void Light::captureLightState()
{
glGetLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_AMBIENT, _ambient.ptr() );
glGetLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_DIFFUSE, _diffuse.ptr() );
glGetLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_SPECULAR, _specular.ptr() );
glGetLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_POSITION, _position.ptr() );
glGetLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_SPOT_DIRECTION, _direction.ptr() );
glGetLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_SPOT_EXPONENT, &_spot_exponent );
glGetLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_SPOT_CUTOFF, &_spot_cutoff );
glGetLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_CONSTANT_ATTENUATION, &_constant_attenuation );
glGetLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_LINEAR_ATTENUATION, &_linear_attenuation );
glGetLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_QUADRATIC_ATTENUATION, &_quadratic_attenuation );
}
void Light::enable( void )
{
glEnable( GL_LIGHTING );
}
void Light::disable( void )
{
glDisable( GL_LIGHTING );
}
void Light::apply( void )
{
if( _on )
{
glEnable ( (GLenum)((int)GL_LIGHT0 + _lightnum) );
glLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_AMBIENT, _ambient.ptr() );
glLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_DIFFUSE, _diffuse.ptr() );
glLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_SPECULAR, _specular.ptr() );
glLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_POSITION, _position.ptr() );
glLightfv( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_SPOT_DIRECTION, _direction.ptr() );
glLightf ( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_SPOT_EXPONENT, _spot_exponent );
glLightf ( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_SPOT_CUTOFF, _spot_cutoff );
glLightf ( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_CONSTANT_ATTENUATION, _constant_attenuation );
glLightf ( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_LINEAR_ATTENUATION, _linear_attenuation );
glLightf ( (GLenum)((int)GL_LIGHT0 + _lightnum), GL_QUADRATIC_ATTENUATION, _quadratic_attenuation );
}
else
glDisable( (GLenum)((int)GL_LIGHT0 + _lightnum) );
}