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#include <pointlight.h>
Inherits Node.
Public Member Functions | |
PointLight (const char *name="") | |
virtual | ~PointLight () |
virtual unsigned int | nbFields () const |
virtual FieldHandle | field (const std::string &n) |
virtual FieldHandle | field (unsigned int i) |
virtual bool | isSetToDefaultValue (unsigned int i) const |
virtual unsigned int | nbEventsIn () const |
virtual EventInHandle | eventIn (const std::string &n) |
virtual EventInHandle | eventIn (unsigned int i) |
virtual unsigned int | nbEventsOut () const |
virtual EventOutHandle | eventOut (const std::string &n) |
virtual EventOutHandle | eventOut (unsigned int i) |
const char * | typeName () const |
virtual Node * | duplicate () const |
virtual Node * | duplicate (std::map< const Node *, Node * > &) const |
Public Attributes | |
Exposed Fields | |
A field that is capable of receiving events via an eventIn to change its value(s), and generating events via an eventOut when its value(s) change. | |
SFFloat | ambientIntensity |
SFVec3f | attenuation |
SFColor | color |
SFFloat | intensity |
SFVec3f | location |
SFBool | on |
SFFloat | radius |
Events In | |
EventIn< SFFloat > | set_ambientIntensity |
EventIn< SFVec3f > | set_attenuation |
EventIn< SFColor > | set_color |
EventIn< SFFloat > | set_intensity |
EventIn< SFVec3f > | set_location |
EventIn< SFBool > | set_on |
EventIn< SFFloat > | set_radius |
Events Out | |
EventOut< SFFloat > | ambientIntensity_changed |
EventOut< SFVec3f > | attenuation_changed |
EventOut< SFColor > | color_changed |
EventOut< SFFloat > | intensity_changed |
EventOut< SFVec3f > | location_changed |
EventOut< SFBool > | on_changed |
EventOut< SFFloat > | radius_changed |
The PointLight node specifies a point light source at a 3D location in the local coordinate system. A point light source emits light equally in all directions; that is, it is omnidirectional. PointLight nodes are specified in the local coordinate system and are affected by ancestor transformations.
Subclause 4.6.6, Light sources, contains a detailed description of the ambientIntensity, color, and intensity fields.
A PointLight node illuminates geometry within radius metres of its location. Both radius and location are affected by ancestors' transformations (scales affect radius and transformations affect location). The radius field shall be greater than or equal to zero.
PointLight node's illumination falls off with distance as specified by three attenuation coefficients. The attenuation factor is 1/max(attenuation[0] + attenuation[1]×r + attenuation[2]×r2, 1), where r is the distance from the light to the surface being illuminated. The default is no attenuation. An attenuation value of (0, 0, 0) is identical to (1, 0, 0). Attenuation values shall be greater than or equal to zero. A detailed description of VRML's lighting equations is contained in 4.14, Lighting model.
PointLight | ( | const char * | name = "" |
) |
Construct a node with all its fields set to default value, which is equivalent to the code below:
ambientIntensity = 0.0f; attenuation.setXYZ(1,0,0); color.setRGB(1,1,1); intensity = 1.0f; location.setXYZ(0,0,0); on = true; radius = 100.0f;
~PointLight | ( | ) | [virtual] |
Virtual destructor, does nothing
unsigned int nbFields | ( | ) | const [inline, virtual] |
Returns the number of fields (exposed or not) for this node type.
Implements Node.
wrl::Node::FieldHandle field | ( | const std::string & | n | ) | [virtual] |
Return a handle on the field named n
of the node or a "unknown" typed handle if there is no such field. Valid names are:
Implements Node.
wrl::Node::FieldHandle field | ( | unsigned int | n | ) | [virtual] |
Return a handle on the i
th field of the node or a "unknown" typed handle if there is no such node. Here is how i
is related to fields:
Implements Node.
bool isSetToDefaultValue | ( | unsigned int | i | ) | const [virtual] |
Implements Node.
unsigned int nbEventsIn | ( | ) | const [inline, virtual] |
Returns the number of events in for this node type.
Implements Node.
wrl::Node::EventInHandle eventIn | ( | const std::string & | n | ) | [virtual] |
Return a handle on the event in named n
of the node or a "unknown" typed handle if there is no such event. Valid names are:
Implements Node.
wrl::Node::EventInHandle eventIn | ( | unsigned int | n | ) | [virtual] |
Return a handle on the i
th event in of the node or a "unknown" typed handle if there is no such node. emarks This class has no eventIn. This function is useful, with nbEventsIn() if you want to traverse all events in of a Node.
Implements Node.
unsigned int nbEventsOut | ( | ) | const [inline, virtual] |
Returns the number of events out for this node type.
Implements Node.
wrl::Node::EventOutHandle eventOut | ( | const std::string & | n | ) | [virtual] |
Return a handle on the event out named n
of the node or a "unknown" typed handle if there is no such event. Valid names are:
Implements Node.
wrl::Node::EventOutHandle eventOut | ( | unsigned int | n | ) | [virtual] |
Return a handle on the i
th event out of the node or a "unknown" typed handle if there is no such node. Here is how i
is related to fields:
Implements Node.
const char * typeName | ( | ) | const [inline, virtual] |
Returns "PointLight"
. Useful for printing.
Implements Node.
wrl::Node * duplicate | ( | ) | const [virtual] |
Returns a deep copy of this node, that is a fully independant node with all children (if any) also copied. This is mainly useful for instanciating protos.
Implements Node.
See Detailed Description for meaning of this field. Default value is set to
ambientIntensity = 0.0f;
See Detailed Description for meaning of this field. Default value is set to
attenuation.setXYZ(1,0,0);
See Detailed Description for meaning of this field. Default value is set to
color.setRGB(1,1,1);
See Detailed Description for meaning of this field. Default value is set to
intensity = 1.0f;
See Detailed Description for meaning of this field. Default value is set to
location.setXYZ(0,0,0);
See Detailed Description for meaning of this field. Default value is set to
on = true;
See Detailed Description for meaning of this field. Default value is set to
radius = 100.0f;
Set event associated to exposedField ambientIntensity
Set event associated to exposedField attenuation
Set event associated to exposedField intensity
Set event associated to exposedField location
Set event associated to exposedField radius
Changed event associated to exposedField ambientIntensity
Changed event associated to exposedField attenuation
Changed event associated to exposedField color
Changed event associated to exposedField intensity
Changed event associated to exposedField location
Changed event associated to exposedField on
Changed event associated to exposedField radius
Generated on 5 Jan 2007 with
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