Developer Documentation
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Structure to hold options for one LightSource. More...
#include <Type-Light/ObjectTypes/Light/LightNode.hh>
Public Member Functions | |
LightSource () | |
Default Constructor. | |
void | position (Vec3d _pos) |
Set position for LightSource. More... | |
Vec3d | position () const |
Get the position of the LightSource. More... | |
bool | directional () const |
Check if the light source is a directional light source. More... | |
Vec3d | direction () const |
Get direction of the light source. More... | |
void | direction (Vec3d _pos) |
Set the direction of the light source. More... | |
void | enable () |
enable LightSource | |
void | disable () |
disable LightSource | |
bool | enabled () const |
Get light source status. | |
void | spotDirection (Vec3d _pos) |
Set spot direction. More... | |
Vec3d | spotDirection () const |
get spot direction More... | |
void | ambientColor (Vec4f _color) |
set Ambient color for LightSource | |
Vec4f | ambientColor () const |
get Ambient color for LightSource | |
void | diffuseColor (Vec4f _color) |
set Diffuse color for LightSource | |
Vec4f | diffuseColor () const |
get Diffuse color for LightSource | |
void | specularColor (Vec4f _color) |
set Specular color for LightSource | |
Vec4f | specularColor () const |
get Specular color for LightSource | |
void | setColor (const Vec4f &_ambient, const Vec4f &_diffuse, const Vec4f &_specular) |
void | fixedPosition (bool _state) |
make LightSource fixed or moveable with ModelViewMatrix | |
bool | fixedPosition () const |
void | spotExponent (float _exponent) |
float | spotExponent () const |
void | spotCutoff (float _cutoff) |
float | spotCutoff () const |
void | constantAttenuation (float _constantAttenuation) |
float | constantAttenuation () const |
void | linearAttenuation (float _linearAttenuation) |
float | linearAttenuation () const |
void | quadraticAttenuation (float _quadraticAttenuation) |
float | quadraticAttenuation () const |
void | brightness (const float _brightness) |
float | brightness () const |
float | radius () const |
Get light source radius. More... | |
void | radius (const float _radius) |
Set light source radius. More... | |
Protected Attributes | |
Vec4f | position_ |
Vec4f | realPosition_ |
bool | enabled_ |
bool | fixedPosition_ |
Vec4f | ambientColor_ |
Vec4f | diffuseColor_ |
Vec4f | specularColor_ |
Vec3d | spotDirection_ |
Vec3d | realSpotDirection_ |
Vec4f | initialPosition_ |
Vec3d | initialSpotDirection_ |
bool | initialPositionInit_ |
float | spotExponent_ |
float | spotCutoff_ |
float | constantAttenuation_ |
float | linearAttenuation_ |
float | quadraticAttenuation_ |
float | brightness_ |
float | radius_ |
Friends | |
class | LightNode |
Simple Name for PlaneNode. | |
Structure to hold options for one LightSource.
Definition at line 85 of file LightNode.hh.
Vec3d ACG::SceneGraph::LightSource::direction | ( | ) | const |
Get direction of the light source.
Get direction of light.
Definition at line 123 of file LightNode.cc.
void ACG::SceneGraph::LightSource::direction | ( | Vec3d | _pos | ) |
Set the direction of the light source.
This function creates a directional light source. The position is not used by OpenGL. Internally the positions homogeneous coordinate is set to 0.0.
Definition at line 117 of file LightNode.cc.
bool ACG::SceneGraph::LightSource::directional | ( | ) | const |
Check if the light source is a directional light source.
If this light Source is a directional light source the function will return true. Otherwise false as the light source has a position.
Definition at line 127 of file LightNode.cc.
void ACG::SceneGraph::LightSource::position | ( | Vec3d | _pos | ) |
Set position for LightSource.
This function sets the position of a light source. OpenGL handles a position for a light source if the homogeneous coordinate is 1.0. If it is 0.0 the light source will be directional. So a 1.0 is set in this function to get a positioned light source.
Definition at line 108 of file LightNode.cc.
Vec3d ACG::SceneGraph::LightSource::position | ( | ) | const |
Get the position of the LightSource.
Be careful with this function. Check if the light source is not directional with the directional() function
Definition at line 113 of file LightNode.cc.
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inline |
Get light source radius.
The light radius is the size of the lightsource. In OpenGL rendering this value is ignored. You can use it for example in raytracers to implement soft shadows.
Definition at line 206 of file LightNode.hh.
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inline |
Set light source radius.
The light radius is the size of the lightsource. In OpenGL rendering this value is ignored. You can use it for example in raytracers to implement soft shadows.
Definition at line 213 of file LightNode.hh.
void ACG::SceneGraph::LightSource::spotDirection | ( | Vec3d | _pos | ) |
Vec3d ACG::SceneGraph::LightSource::spotDirection | ( | ) | const |
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protected |
When using ray tracing, light sources can have extent. We simplify to spherical light sources with radius radius_.
Definition at line 245 of file LightNode.hh.