SoEnvironment - Online Linux Manual PageSection : 3
Updated : Mon Jan 25 2021
Source : Version 4.0.0
Note : Coin

NAMESoEnvironment − The SoEnvironment class is a node for specifying global rendering parameters​.

SYNOPSIS
#include <Inventor/nodes/SoEnvironment​.h> Inherits SoNode​.

Public Typesenum FogType { NONE = SoEnvironmentElement::NONE, HAZE = SoEnvironmentElement::HAZE, FOG = SoEnvironmentElement::FOG, SMOKE = SoEnvironmentElement::SMOKE }

Public Member Functionsvirtual SoType getTypeId (void) const
Returns the type identification of an object derived from a class inheriting SoBase​. This is used for run-time type checking and 'downward' casting​.
SoEnvironment (void)
virtual void GLRender (SoGLRenderAction *action)
virtual void callback (SoCallbackAction *action)

Static Public Member Functionsstatic SoType getClassTypeId (void)
static void initClass (void)

Public AttributesSoSFFloat ambientIntensity
SoSFColor ambientColor
SoSFVec3f attenuation
SoSFEnum fogType
SoSFColor fogColor
SoSFFloat fogVisibility

Protected Member Functionsvirtual const SoFieldData * getFieldData (void) const
virtual ~SoEnvironment ()

Static Protected Member Functionsstatic const SoFieldData ** getFieldDataPtr (void)

Additional Inherited Members

Detailed DescriptionThe SoEnvironment class is a node for specifying global rendering parameters​. This node type provides the application programmer with the ability to set global parameters influencing lighting and fog​. FILE FORMAT/DEFAULTS: Environment { ambientIntensity 0​.2 ambientColor 1 1 1 attenuation 0 0 1 fogType NONE fogColor 1 1 1 fogVisibility 0 }

Member Enumeration Documentation

enum SoEnvironment::FogTypeEnumeration of available types of fog​. Enumerator NONE  No fog​. Visibility will be equal for all objects, independent of distance to camera​. HAZE  Fog where visibility will decrease linearly with distance to camera​. FOG  Fog where visibility will decrease exponentially with distance to camera​. SMOKE  Fog where visibility will decrease exponentially with the square of the distance to camera (simulating really thick fog)​.

Constructor & Destructor Documentation

SoEnvironment::SoEnvironment (void)Constructor​.

SoEnvironment::~SoEnvironment () [protected], [virtual]Destructor​.

Member Function Documentation

SoType SoEnvironment::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 } }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 * SoEnvironment::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 SoEnvironment::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​.

void SoEnvironment::callback (SoCallbackAction * action) [virtual]Action method for SoCallbackAction​. Simply updates the state according to how the node behaves for the render action, so the application programmer can use the SoCallbackAction for extracting information about the scene graph​. Reimplemented from SoNode​.

Member Data Documentation

SoSFFloat SoEnvironment::ambientIntensityA global ambient value for the light intensity for the complete scene​. This will provide some light even when there are no light sources defined for the scene​. Valid values is from 0​.0 (no ambient light) to 1​.0 (full ambient light intensity)​. Default value is 0​.2​.

SoSFColor SoEnvironment::ambientColorThe color of the global ambient light​. Defaults to full intensity white, ie <1​.0, 1​.0, 1​.0>​. Each component of this RGB vector is multiplied with the scalar value of SoEnvironment::ambientIntensity​.

SoSFVec3f SoEnvironment::attenuationSquared, linear, and constant light attenuation coefficients (in that order)​. Please note that this is the reverse order of how attenuation is usually specified​.

SoSFEnum SoEnvironment::fogTypeThe fog model​. See SoEnvironment::FoType​.

SoSFColor SoEnvironment::fogColorColor of fog​. Defaults to full intensity white​.

SoSFFloat SoEnvironment::fogVisibilityThe 'cut-off' distance from the camera where objects will be totally obscured by fog​. If set to 0​.0, the far plane distance will be used instead​. Default value is 0​.0​.

AuthorGenerated automatically by Doxygen for Coin from the source code​.
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