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. 0
Johanes Gumabo
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