SoOverlayGroup.h

/*=======================================================================
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***                   COPYRIGHT (C) 1996-2024 BY FEI S.A.S,                        ***
***                        BORDEAUX, FRANCE                                        ***
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**=======================================================================*/
 
#pragma once
 
#include <Inventor/nodes/SoGroup.h>
#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/nodes/SoTexture2.h>
#include <Inventor/nodes/SoCallback.h>
#include <Inventor/nodes/SoShaderProgram.h>
#include <Inventor/nodes/SoSwitch.h>
 
class SoRayPickAction;

class  SoOverlayGroup : public SoGroup
{
  SO_NODE_HEADER(SoOverlayGroup);
 
public:
  SoOverlayGroup();
 
private:
  void GLRender(SoGLRenderAction* action) override;
  void rayPick(SoRayPickAction* action) override;
 
private:
 
  // Specifies whether SoOverlayGroup behavior is enabled or disabled.
  // If disabled, the SoOverlayGroup behaves like an SoGroup.
  // Default is true.
  SoSFBool enabled;
 
  static void initClass();
  static void exitClass();
 
private:
  ~SoOverlayGroup() override;
 
private:
  SoRef<SoSeparator> m_composeOpaque;
  SoRef<SoSeparator> m_composeTransp;
 
  std::vector<SoCallback*> m_callbackNodes;
  SoRef<SoCallback> m_updateElementsCallback;
 
  SoRef<SoTexture2> m_depthTexture;
  SoRef<SoTexture2> m_colorTexture;
 
  SoRef<SoShaderProgram> m_opaqueShaderProg;
  SoRef<SoShaderProgram> m_transparentShaderProg;
};