FXViz/nodes/SoParticleAnimation.h

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/*=======================================================================
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**=======================================================================*/
/*=======================================================================
** Author      : A. SURE (Aug 2001)
** Modified by : R.ALBOU (MMM yyyy)
**=======================================================================*/

                                                             /* include files */
#ifndef _SO_PARTICLE_ANIMATION_
#define _SO_PARTICLE_ANIMATION_

#include <Inventor/nodes/SoShape.h>

#include <Inventor/fields/SoSFEnum.h>
#include <Inventor/fields/SoSFInt32.h>
#include <Inventor/fields/SoSFColor.h>
#include <Inventor/fields/SoSFFloat.h>
#include <Inventor/fields/SoSFVec2f.h>
#include <Inventor/fields/SoSFVec3f.h>
#include <Inventor/fields/SoSFFilePathString.h>
#include <Inventor/fields/SoSFImage.h>
#include <Inventor/fields/SoSFTrigger.h>
#include <Inventor/fields/SoSFBool.h>

#include <Inventor/nodes/SoTexture2.h>

class CParticle;
class CPoint3D;
class CVector3D;
class CMatrix;
class CParticleList;
class SbPParticleList;

/*----------------------------------------------------------------------------*/

class SoGetPrimitiveCountAction ;
class SoGLRenderAction ;
class SoSensor ;
class SoFieldSensor ;
class SoOneShotSensor ;


/*-----------------------------------------------------------------------------*/
class SoDEPRECATED  SoParticleAnimation : public SoShape {

  SO_NODE_HEADER(SoParticleAnimation);
  
 public:
  enum ParticleShape {
    POINT_SHAPE,
    LINE_SHAPE,  
    BILLBOARD_SHAPE  
  };
  
  enum EmitShapeType {  
    POINT,
    CYLINDER,
    LINE,
    SQUARE,
    SPHERE,
    CIRCLE,
    DISK,
    GEOMETRY
  };
  
  enum ParticleLife {
    ONE_EMISSION,
    CYCLIC_EMISSION
  };

  enum TransparencyType {
    ADD,
    BLEND,
    INHERITED 
  };
    
  SoParticleAnimation();

  SoSFInt32 numParticles;
  
  SoSFFloat numParticlesVariation;
  
  SoSFColor initialColor;  
  
  SoSFVec3f initialColorVariation;  
  
  SoSFFloat initialOpacity;  
  
  SoSFFloat initialOpacityVariation;
  
  SoSFFloat initialSize;
  
  SoSFFloat initialSizeVariation;
 
  SoSFColor endColor;
  
  SoSFVec3f endColorVariation;
  
  SoSFFloat endOpacity;
  
  SoSFFloat endOpacityVariation;
  
  SoSFFloat endSize;
  
  SoSFFloat endSizeVariation;
  
  SoSFInt32 lifeSpan;
  
  SoSFFloat lifeSpanVariation;
  
  SoSFEnum particleShape;
   
  SoSFEnum emitShapeType;
  
  SoSFVec3f shapeScale;
  
  SoSFVec2f dispersionAngles;
  
  SoSFEnum particleLife;
  
  SoSFFloat speed;
  
  SoSFFloat speedVariation;
  
  SoSFFilePathString particleFilename;
  
  SoSFImage particleTexture;
  
  SoSFFloat goalFramesPerSecond;
  
  SoSFTrigger trigger;
 
  SoSFEnum transparencyType;

  SoSFBool on;
  
  /*-----------------------------------------------------------------------------*/

 private:
  virtual void computeBBox(SoAction *action, SbBox3f &box, SbVec3f &center);
  virtual void rayPick(SoRayPickAction *action);
  virtual void GLRender(SoGLRenderAction *action);

 private:
  static void initClass();
  static void exitClass() ;

 private:
  void init(void);
  // Destructor
  virtual ~SoParticleAnimation();
  
  virtual void generatePrimitives(SoAction *action);

  void loadTexture();
  
 private:
  // update positions particules (Particules.cxx) 
  void update(unsigned long currentTime);
  void initParticle(CParticle *p, unsigned long time);
  void getRandomPositionAndDirectionInShape(CPoint3D *position, CVector3D  *direction);
  void rotationToDirection(float pitch, float yaw, CVector3D *dir);


  void renderPoints();
  void renderLines();
  void renderBillboards();

  static void timerSensorCB(void *data, SoSensor *);

  // the dead ones
  SbPParticleList *m_deadParticles;
  // the funky ones
  SbPParticleList *m_aliveParticles;

  float m_emissionResidue;

  // rayPick
  SbBool pickingBoundingBox;

  // Time in ms
  unsigned long m_currentTime;
  unsigned long m_lastTime;

  // texturing 
  GLuint m_handle;

  // for ModelView matrix
  SbMatrix curModelMatrix;

  // Image management
  // to load image dynamically
  static void  imageChangedCB(void *, SoSensor *);
  static void filenameChangedCB(void *, SoSensor *);

  // Trigger management
  static void triggerFunc(void *data, SoSensor *);

  // These keep the image and filename fields in sync.
  SoFieldSensor *m_imageSensor;
  SoFieldSensor *m_filenameSensor;
  // for loading texture...one time
  SbBool m_textureLoaded;
  // trigger sensor
  SoFieldSensor *m_triggerSensor;

  // Timer sensor
  SoTimerSensor *m_timerSensor;
  SoOneShotSensor*  m_oneShotSensor ;

  // Previous cache context.
  int32_t m_prevCacheContext;

  int m_alreadyTriggered;
};


#endif // _SO_PARTICLE_ANIMATION_

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Open Inventor Toolkit reference manual, generated on 12 Feb 2024
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