SoTransparency Class Reference

#include <SoTransparency.h>

Inheritance diagram for SoTransparency:

Collaboration diagram for SoTransparency:

Public Member Functions
	SoTransparency ()

Static Public Member Functions
static void	initClass ()

Public Attributes
SoSFFloat	transparency
SoSFBool	relative

Protected Member Functions
virtual void	GLRender (SoGLRenderAction *action)
virtual void	callback (SoCallbackAction *action)
virtual void	doAction (SoAction *action)

Private Member Functions
	SO_NODE_HEADER (SoTransparency)
virtual	~SoTransparency ()

Detailed Description

Definition at line 20 of file SoTransparency.h.

Constructor & Destructor Documentation

SoTransparency()

SoTransparency::SoTransparency

(

)

Definition at line 38 of file SoTransparency.cxx.

{
  SO_NODE_CONSTRUCTOR(SoTransparency);
 
  SO_NODE_ADD_FIELD(transparency, (0.5));
  SO_NODE_ADD_FIELD(relative, (true));
  setNodeType(EXTENSION);
 
}

Member Function Documentation

callback()

void SoTransparency::callback ( SoCallbackAction * action )

protectedvirtual

Definition at line 64 of file SoTransparency.cxx.

{
  SoTransparency::doAction(action);
}

doAction()

void SoTransparency::doAction ( SoAction * action )

protectedvirtual

Definition at line 70 of file SoTransparency.cxx.

{
  // Make sure the "transparency" field is not ignored. If it is,
  // then we don't need to change anything in the state.
  if (transparency.isIgnored())
    return;
 
  const float isRelative = relative.getValue();
  const float transpVal = transparency.getValue();
  if ( isRelative && transpVal<=0.0f )
    return;//No effect
 
  const SoTransparencyElement * STE = SoTransparencyElement::getInstance( action->getState() );
  const int n = STE->getNum();
  if (n<=0)
    return;//Nothing to modify
 
  float * finalTransparency = new float[n];//NB: Who takes care of deleting finalTransparency??
  for (int i = 0; i < n; i++)
    finalTransparency[i] = std::min<float>( 1.0f, std::max<float>( 0.0f, ( isRelative ? ( 1.0 - (1.0 - transpVal) * (1.0 - STE->get(0)) ) : transpVal ) ) );
 
  SoTransparencyElement::set(action->getState(), this, n, finalTransparency);
 
}

GLRender()

void SoTransparency::GLRender ( SoGLRenderAction * action )

protectedvirtual

Definition at line 55 of file SoTransparency.cxx.

{
  SoTransparency::doAction(action);
  SoMaterialBundle  mb(action);
  mb.forceSend(0);
}

initClass()

void SoTransparency::initClass ( )

static

Definition at line 29 of file SoTransparency.cxx.

{
  [[maybe_unused]] static const bool didInit = [&]() {
    SO_NODE_INIT_CLASS(SoTransparency, SoNode, "Node");
    return true;
  }();
}

SO_NODE_HEADER()

SoTransparency::SO_NODE_HEADER ( SoTransparency )

private

~SoTransparency()

SoTransparency::~SoTransparency ( )

privatevirtual

Definition at line 49 of file SoTransparency.cxx.

{
}

Member Data Documentation

relative

SoSFBool SoTransparency::relative

Definition at line 28 of file SoTransparency.h.

transparency

SoSFFloat SoTransparency::transparency

Definition at line 27 of file SoTransparency.h.

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The documentation for this class was generated from the following files:

• SoTransparency.h
• SoTransparency.cxx