man SoEnvironment () - global environment node
NAME
SoEnvironment - global environment node
INHERITS FROM
SoBase > SoFieldContainer > SoNode > SoEnvironment
SYNOPSIS
#include <Inventor/nodes/SoEnvironment.h>
enum FogType {
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}
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No fog
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}
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Linear increase in opacity with distance
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}
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Exponential increase in opacity
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}
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Exponential squared increase in opacity
}
Fields from class SoEnvironment:
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}
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}
ambientIntensity
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}
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}
ambientColor
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}
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attenuation
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}
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}
fogType
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}
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}
fogColor
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}
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}
fogVisibility
Methods from class SoEnvironment:
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SoEnvironment()
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getClassTypeId()
Methods from class SoNode:
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}
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setOverride(SbBool state)
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isOverride() const
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copy(SbBool copyConnections = FALSE) const
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affectsState() const
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getByName(const SbName &name)
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}
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getByName(const SbName &name, SoNodeList &list)
Methods from class SoFieldContainer:
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}
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setToDefaults()
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hasDefaultValues() const
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}
fieldsAreEqual(const SoFieldContainer *fc) const
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}
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}
copyFieldValues(const SoFieldContainer *fc, SbBool copyConnections = FALSE)
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}
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set(const char *fieldDataString)
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}
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get(SbString &fieldDataString)
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}
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}
getFields(SoFieldList &resultList) const
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}
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getField(const SbName &fieldName) const
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}
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getFieldName(const SoField *field, SbName &fieldName) const
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}
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}
isNotifyEnabled() const
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}
enableNotify(SbBool flag)
Methods from class SoBase:
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}
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ref()
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}
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}
unref() const
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}
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}
unrefNoDelete() const
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}
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}
touch()
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}
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}
getTypeId() const
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}
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isOfType(SoType type) const
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}
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setName(const SbName &name)
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getName() const
DESCRIPTION
This node describes global environmental attributes such as ambient lighting, light attenuation, and fog. Ambient lighting is the amount of extra light impinging on each surface point when the lighting model is Phong (see SoLightModel). Light attenuation affects all subsequent lights in a scene (see SoLight). It is a quadratic function of distance from a light source to a surface point. The three coefficients are specified in the attenuation field. Attenuation works only for light sources with a fixed location, such as point and spot lights. Fog has one of four types, each of which blends each surface point with the specified fog color. Each type interprets the visibility field to be the distance at which fog totally obscures objects. A visibility value of 0 (the default) causes the SoEnvironment node to set up fog so that the visibility is the distance to the far clipping plane of the current camera. Note that this node has effect only during rendering, and that it does not inherit field values from other SoEnvironment nodes.
FIELDS
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}
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ambientIntensity
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}
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}
ambientColor
Intensity and RGB color of ambient lighting (for Phong lighting).
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}
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}
attenuation
Squared, linear, and constant light attenuation coefficients (in that order) with respect to distance of light from surface (for Phong lighting).
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}
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}
fogType
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}
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}
fogColor
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}
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}
fogVisibility
Type of fog, color of fog, and visibility distance, which is the distance at which fog totally obscures objects.
METHODS
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SoEnvironment()
Creates an environment node with default settings.
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getClassTypeId()
Returns type identifier for this class.
ACTION BEHAVIOR
SoGLRenderAction
Sets the current environment parameters to those specified with this node. Successive geometries will be rendered using this environment.
FILE FORMAT/DEFAULTS
Environment {
ambientIntensity 0.2
ambientColor 1 1 1
attenuation 0 0 1
fogType NONE
fogColor 1 1 1
fogVisibility 0
}
SEE ALSO
SoLight, SoLightModel