SoCast.h

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// Copyright (c) Fraunhofer MEVIS, Germany. All rights reserved.
// **InsertLicense** code
/*
 *
 _______________________________________________________________________
 ____________  W W W .   A W A K E   I D E A S   . C O M  ______________
 |
 |
 |   Description:
 |   ...
 |
 |   Author(s)      : Felix Ritter
 |
 ____________  W W W .   A W A K E   I D E A S   . C O M  ______________
 _______________________________________________________________________
 */
 
#ifndef  _SoCast_H
#define  _SoCast_H
 
#include "SoShadowSystem.h"
#include "Inventor/datatypes/SbGroundplane.h"
 
class SoGLRenderAction;
class SoGetBoundingBoxAction;
class SoState;
class SoColorPacker;
 
__MEVIS_IV_BEGIN_NAMESPACE
 
template <class Type>
inline Type SbDeg2Rad( Type val ) {
   return (Type)(val * M_PI / 180.0);
}
template <class Type>
inline Type SbRad2Deg( Type val ) {
   return (Type)(val * 180.0 / M_PI);
}
 
// abstract node
class SOSHADOW_CLASS_SPEC SoCast : public SoSeparator
{
   typedef SoSeparator inherited;
 
   SO_NODE_ABSTRACT_HEADER(SoCast);
 
   private:
      SoColorPacker *_colorPacker;
 
   protected:
      SbVec4f       _curlightPos;
      SbGroundplane _curPlaneArea;
   
   protected:
      SoCast();
      virtual ~SoCast();
 
      SbPlane cameraToPlane(SoState *state, SbGroundplane &area);
      
      SbBox3f getPlaneBoundingBox(SoState *state, SbBool usePlaneElement= FALSE);
      
      virtual void normalRenderSetup(SoGLRenderAction *)        {}
 
      virtual void castRenderSetup(SoGLRenderAction *);
      
      virtual SbMatrix getCastMatrix(SoState *);
 
      void adjustCurrentCameraClippingPlanes(SoState *state);
      
   public:
      enum LightMode {
         FREE,          
         PLANE,         
         CAMERA         
      };
 
      SoSFVec4f lightPos;   
 
      SoSFEnum  lightMode;
 
 
      SoSFPlane projectionPlane;
      
 
      SoSFFloat planeAngle;
 
      SoSFColor castColor;
      
      SoSFBool  castRender;
      
 
      const SbVec4f &getCurLightDir() const     { return _curlightPos; }
      
      void animatePlaneAngleAssignment(float newAngle);
 
   SoEXTENDER public:
      void getBoundingBox(SoGetBoundingBoxAction *action) override;
 
      void GLRenderBelowPath(SoGLRenderAction *action) override;
      void GLRenderInPath(SoGLRenderAction *action) override;
 
      virtual void commonGLRender(SoGLRenderAction *action);
 
      const SbVec3f &getNearestPlaneVertex()    { return _curPlaneArea[0]; }
      const SbVec3f &getFarestPlaneVertex()     { return _curPlaneArea[3]; }
 
      virtual const SbVec3f &getFarestSceneVertex() { return _curPlaneArea[3]; }
      
   SoINTERNAL public:
      static void initClass();
};
 
__MEVIS_IV_END_NAMESPACE
 
#endif  // SoCast