.TH "SoLightModel" 3 "Sat Oct 12 2013" "Version 4.0.0a" "Coin" \" -*- nroff -*-
.ad l
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.SH NAME
SoLightModel \- 
.PP
The \fBSoLightModel\fP class is a node for specifying the model for geometry lighting\&.
.PP
Use nodes of this type to set up how lighting should affect subsequent geometry in the scene\&.  

.SH SYNOPSIS
.br
.PP
.PP
\fC#include <Inventor/nodes/SoLightModel\&.h>\fP
.PP
Inherits \fBSoNode\fP\&.
.SS "Public Types"

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.RI "enum \fBModel\fP { \fBBASE_COLOR\fP =  SoLazyElement::BASE_COLOR, \fBPHONG\fP =  SoLazyElement::PHONG }"
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.SS "Public Member Functions"

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.RI "virtual \fBSoType\fP \fBgetTypeId\fP (void) const "
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.RI "\fIReturns the type identification of an object derived from a class inheriting \fBSoBase\fP\&. This is used for run-time type checking and 'downward' casting\&. \fP"
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.RI "\fBSoLightModel\fP (void)"
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.RI "virtual void \fBdoAction\fP (\fBSoAction\fP *action)"
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.RI "virtual void \fBGLRender\fP (\fBSoGLRenderAction\fP *action)"
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.RI "virtual void \fBcallback\fP (\fBSoCallbackAction\fP *action)"
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.SS "Static Public Member Functions"

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.RI "static \fBSoType\fP \fBgetClassTypeId\fP (void)"
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.RI "\fIThis static method returns the \fBSoType\fP object associated with objects of this class\&. \fP"
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.RI "static void \fBinitClass\fP (void)"
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.RI "\fISets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system\&. \fP"
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.SS "Public Attributes"

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.RI "\fBSoSFEnum\fP \fBmodel\fP"
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.SS "Protected Member Functions"

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.RI "virtual const \fBSoFieldData\fP * \fBgetFieldData\fP (void) const "
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.RI "virtual \fB~SoLightModel\fP ()"
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.SS "Static Protected Member Functions"

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.RI "static const \fBSoFieldData\fP ** \fBgetFieldDataPtr\fP (void)"
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.SS "Additional Inherited Members"
.SH "Detailed Description"
.PP 
The \fBSoLightModel\fP class is a node for specifying the model for geometry lighting\&.
.PP
Use nodes of this type to set up how lighting should affect subsequent geometry in the scene\&. 

\fBFILE FORMAT/DEFAULTS:\fP 
.PP
.nf
LightModel {
    model PHONG
}

.fi
.PP
 
.SH "Member Enumeration Documentation"
.PP 
.SS "enum \fBSoLightModel::Model\fP"
Enumerates available light models\&. 
.PP
\fBEnumerator: \fP
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.TP
\fB\fIBASE_COLOR \fP\fP
Use the current diffuse material color for subsequent geometry, and do not let any lightsources influence the appearance of the rendering primitives\&. 
.TP
\fB\fIPHONG \fP\fP
Use Phong-style shading for the geometry\&. 
.SH "Constructor & Destructor Documentation"
.PP 
.SS "SoLightModel::SoLightModel (void)"
Constructor\&. 
.SS "SoLightModel::~SoLightModel ()\fC [protected]\fP, \fC [virtual]\fP"
Destructor\&. 
.SH "Member Function Documentation"
.PP 
.SS "\fBSoType\fP SoLightModel::getTypeId (void) const\fC [virtual]\fP"

.PP
Returns the type identification of an object derived from a class inheriting \fBSoBase\fP\&. This is used for run-time type checking and 'downward' casting\&. Usage example:
.PP
.PP
.nf
void foo(SoNode * node)
{
  if (node->getTypeId() == SoFile::getClassTypeId()) {
    SoFile * filenode = (SoFile *)node;  // safe downward cast, knows the type
  }
}
.fi
.PP
.PP
For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in \fIall\fP subclasses\&. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through for instance \fBInventor/nodes/SoSubNode\&.h\fP (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine\&.h (for engine classes) and so on\&.
.PP
For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups\&. 
.PP
Implements \fBSoBase\fP\&.
.SS "const \fBSoFieldData\fP ** SoLightModel::getFieldDataPtr (void)\fC [static]\fP, \fC [protected]\fP"
\fIThis API member is considered internal to the library, as it is not likely to be of interest to the application programmer\&.\fP 
.PP
Reimplemented from \fBSoNode\fP\&.
.SS "const \fBSoFieldData\fP * SoLightModel::getFieldData (void) const\fC [protected]\fP, \fC [virtual]\fP"
Returns a pointer to the class-wide field data storage object for this instance\&. If no fields are present, returns \fCNULL\fP\&. 
.PP
Reimplemented from \fBSoFieldContainer\fP\&.
.SS "void SoLightModel::doAction (\fBSoAction\fP *action)\fC [virtual]\fP"
This function performs the typical operation of a node for any action\&. 
.PP
Reimplemented from \fBSoNode\fP\&.
.SS "void SoLightModel::GLRender (\fBSoGLRenderAction\fP *action)\fC [virtual]\fP"
Action method for the \fBSoGLRenderAction\fP\&.
.PP
This is called during rendering traversals\&. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method\&. 
.PP
Reimplemented from \fBSoNode\fP\&.
.SS "void SoLightModel::callback (\fBSoCallbackAction\fP *action)\fC [virtual]\fP"
Action method for \fBSoCallbackAction\fP\&.
.PP
Simply updates the state according to how the node behaves for the render action, so the application programmer can use the \fBSoCallbackAction\fP for extracting information about the scene graph\&. 
.PP
Reimplemented from \fBSoNode\fP\&.
.SH "Member Data Documentation"
.PP 
.SS "\fBSoSFEnum\fP SoLightModel::model"
Lightmodel to use\&. Defaults to \fBSoLightModel::PHONG\fP\&. 

.SH "Author"
.PP 
Generated automatically by Doxygen for Coin from the source code\&.