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The 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. More...
#include <Inventor/nodes/SoEnvironment.h>
Public Types | |
enum | FogType { NONE = SoEnvironmentElement::NONE, HAZE = SoEnvironmentElement::HAZE, FOG = SoEnvironmentElement::FOG, SMOKE = SoEnvironmentElement::SMOKE } |
Public Member Functions | |
SoEnvironment (void) | |
virtual void | GLRender (SoGLRenderAction *action) |
virtual void | callback (SoCallbackAction *action) |
Static Public Member Functions | |
static void | initClass (void) |
Public Attributes | |
SoSFFloat | ambientIntensity |
SoSFColor | ambientColor |
SoSFVec3f | attenuation |
SoSFEnum | fogType |
SoSFColor | fogColor |
SoSFFloat | fogVisibility |
Protected Member Functions | |
virtual | ~SoEnvironment () |
The 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 }
Enumeration of available types of fog.
SoEnvironment::SoEnvironment | ( | void | ) |
Constructor.
References ambientColor, ambientIntensity, attenuation, FOG, fogColor, fogType, fogVisibility, HAZE, NONE, and SMOKE.
SoEnvironment::~SoEnvironment | ( | ) | [protected, virtual] |
Destructor.
void SoEnvironment::initClass | ( | void | ) | [static] |
Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
Reimplemented from SoNode.
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.
References ambientColor, ambientIntensity, attenuation, fogColor, fogType, fogVisibility, SoAction::getState(), and SoFieldContainer::set().
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.
References ambientColor, ambientIntensity, attenuation, fogColor, fogType, fogVisibility, SoAction::getState(), and SoFieldContainer::set().
A 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.
Referenced by callback(), GLRender(), and SoEnvironment().
The 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.
Referenced by callback(), GLRender(), and SoEnvironment().
Squared, linear, and constant light attenuation coefficients (in that order). Please note that this is the reverse order of how attenuation is usually specified.
Referenced by callback(), GLRender(), and SoEnvironment().
The fog model. See SoEnvironment::FoType.
Referenced by callback(), GLRender(), and SoEnvironment().
Color of fog. Defaults to full intensity white.
Referenced by callback(), GLRender(), and SoEnvironment().
The "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.
Referenced by callback(), GLRender(), and SoEnvironment().
Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.
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