SoVRMLFog - Online Linux Manual PageSection : 3
Updated : Mon Jan 25 2021
Source : Version 2.5.0
Note : Coin
NAMESoVRMLFog − The SoVRMLFog class is used to specify a global scene fog​.
SYNOPSIS
#include <Inventor/VRMLnodes/SoVRMLFog​.h> Inherits SoNode​.
Public Member Functionsvirtual SoType getTypeId (void) const
SoVRMLFog (void)
virtual void GLRender (SoGLRenderAction *action)
Static Public Member Functionsstatic SoType getClassTypeId (void)
static void initClass (void)
Public AttributesSoSFString fogType
SoSFFloat visibilityRange
SoSFColor color
Protected Member Functionsvirtual const SoFieldData * getFieldData (void) const
virtual ~SoVRMLFog ()
Static Protected Member Functionsstatic const SoFieldData ** getFieldDataPtr (void)
Protected AttributesSoSFBool set_bind
SoSFBool isBound
Additional Inherited Members
Detailed DescriptionThe SoVRMLFog class is used to specify a global scene fog​. The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC 14772-1:1997)​. It is copyright The Web3D Consortium, and is used by permission of the Consortium:

Fog { exposedField SFColor color 1 1 1 # [0,1] exposedField SFString fogType "LINEAR" exposedField SFFloat visibilityRange 0 # [0,inf) eventIn SFBool set_bind eventOut SFBool isBound } The Fog node provides a way to simulate atmospheric effects by blending objects with the colour specified by the color field based on the distances of the various objects from the viewer​. The distances are calculated in the coordinate space of the Fog node​. The visibilityRange specifies the distance in metres (in the local coordinate system) at which objects are totally obscured by the fog​. Objects located outside the visibilityRange from the viewer are drawn with a constant colour of color​. Objects very close to the viewer are blended very little with the fog color​.
A visibilityRange of 0​.0 disables the Fog node​. The visibilityRange is affected by the scaling transformations of the Fog node's parents; translations and rotations have no affect on visibilityRange​. Values of the visibilityRange field shall be in the range [0, )​.
Since Fog nodes are bindable children nodes (see 4​.6​.10, Bindable children nodes http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/concepts.html#4.6.10), a Fog node stack exists, in which the top- most Fog node on the stack is currently active​. To push a Fog node onto the top of the stack, a TRUE value is sent to the set_bind eventIn​. Once active, the Fog node is bound to the browser view​. A FALSE value sent to set_bind, pops the Fog node from the stack and unbinds it from the browser viewer​. More details on the Fog node stack can be found in 4​.6​.10, Bindable children nodes (http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/concepts.html#4.6.10)​. The fogType field controls how much of the fog colour is blended with the object as a function of distance​. If fogType is 'LINEAR', the amount of blending is a linear function of the distance, resulting in a depth cueing effect​. If fogType is 'EXPONENTIAL,' an exponential increase in blending is used, resulting in a more natural fog appearance​. The effect of fog on lighting calculations is described in 4​.14, Lighting model (http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-VRML97/part1/concepts.html#4.6.14)​.
Constructor & Destructor Documentation
SoVRMLFog::SoVRMLFog (void)Constructor​. References color, fogType, isBound, set_bind, and visibilityRange​.
SoVRMLFog::~SoVRMLFog () [protected], [virtual]Destructor​.
Member Function Documentation
SoType SoVRMLFog::getTypeId (void) const [virtual]Returns the type identification of an object derived from a class inheriting SoBase​. This is used for run-time type checking and 'downward' casting​. Usage example: void foo(SoNode * node) { if (node->getTypeId() == SoFile::getClassTypeId()) { SoFile * filenode = (SoFile *)node; // safe downward cast, knows the type } else if (node->getTypeId()​.isOfType(SoGroup::getClassTypeId())) { SoGroup * group = (SoGroup *)node; // safe downward cast, knows the type } }For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in all 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 Inventor/nodes/SoSubNode​.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine​.h (for engine classes) and so on​. For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups​. Implements SoBase​.
const SoFieldData * SoVRMLFog::getFieldData (void) const [protected], [virtual]Returns a pointer to the class-wide field data storage object for this instance​. If no fields are present, returns NULL​. Reimplemented from SoFieldContainer​.
void SoVRMLFog::GLRender (SoGLRenderAction * action) [virtual]Action method for the SoGLRenderAction​. 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​. Reimplemented from SoNode​. References fogType, SoAction::getState(), and visibilityRange​.
Member Data Documentation
SoSFString SoVRMLFog::fogTypeType of fog​. Can be either 'LINEAR' or 'EXPONENTIAL'​. Default value is 'LINEAR'​. Referenced by GLRender(), and SoVRMLFog()​.
SoSFFloat SoVRMLFog::visibilityRangeRange of visibility​. The distance when only the fog color can be seen​. Default value is (0​.0)​. Referenced by GLRender(), and SoVRMLFog()​.
SoSFColor SoVRMLFog::colorThe fog color​. Default value is (1, 1, 1)​. Referenced by SoVRMLFog()​.
SoSFBool SoVRMLFog::set_bind [protected]An eventIn that is used to bind this node (make the node active)​. Referenced by SoVRMLFog()​.
SoSFBool SoVRMLFog::isBound [protected]An eventOut that is sent when the node is bound/unbound​. Referenced by SoVRMLFog()​.
AuthorGenerated automatically by Doxygen for Coin from the source code​. 0
Johanes Gumabo
Data Size   :   25,886 byte
man-SoVRMLFog.3coin2Build   :   2024-12-05, 20:55   :  
Visitor Screen   :   x
Visitor Counter ( page / site )   :   2 / 189,418
Visitor ID   :     :  
Visitor IP   :   52.14.140.108   :  
Visitor Provider   :   AMAZON-02   :  
Provider Position ( lat x lon )   :   39.962500 x -83.006100   :   x
Provider Accuracy Radius ( km )   :   1000   :  
Provider City   :   Columbus   :  
Provider Province   :   Ohio ,   :   ,
Provider Country   :   United States   :  
Provider Continent   :   North America   :  
Visitor Recorder   :   Version   :  
Visitor Recorder   :   Library   :  
Online Linux Manual Page   :   Version   :   Online Linux Manual Page - Fedora.40 - march=x86-64 - mtune=generic - 24.12.05
Online Linux Manual Page   :   Library   :   lib_c - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Online Linux Manual Page   :   Library   :   lib_m - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Data Base   :   Version   :   Online Linux Manual Page Database - 24.04.13 - march=x86-64 - mtune=generic - fedora-38
Data Base   :   Library   :   lib_c - 23.02.07 - march=x86-64 - mtune=generic - fedora.36
Very long time ago, I have the best tutor, Wenzel Svojanovsky . If someone knows the email address of Wenzel Svojanovsky , please send an email to johanes_gumabo@yahoo.co.id .
If error, please print screen and send to johanes_gumabo@yahoo.co.id
Under development. Support me via PayPal.