X3DGeometryNode.h

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//    Copyright 2004-2019, SenseGraphics AB
//
//    This file is part of H3D API.
//
//    H3D API is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    H3D API is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with H3D API; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
//    A commercial license is also available. Please contact us at 
//    www.sensegraphics.com for more information.
//
//
//
#ifndef __X3DGEOMETRYNODE_H__
#define __X3DGEOMETRYNODE_H__
 
// H3Dapi includes
#include <H3D/X3DChildNode.h>
#include <H3D/H3DBoundedObject.h>
#include <H3D/H3DDisplayListObject.h>
#include <H3D/MFBool.h>
#include <H3D/MFVec3f.h>
#include <H3D/H3DOptionNode.h>
#include <H3D/MFNode.h>
#include <H3D/X3DTextureCoordinateNode.h>
#include <H3D/OpenHapticsOptions.h>
 
// HAPI includes
#include <HAPI/HAPIGLShape.h>
#include <HAPI/HapticTriangleSet.h>
 
// H3DUtil includes
#include <H3DUtil/AutoPtrVector.h>
 
namespace H3D {
  // forward declaration
  class H3DShadowObjectNode;
 
  class H3DAPI_API X3DGeometryNode : 
    public X3DChildNode,
    public H3DBoundedObject,
    public H3DDisplayListObject,
    public HAPI::HAPIGLShape {
  public:
    typedef TypedMFNode< H3DOptionNode > MFOptionsNode;
 
    class H3DAPI_API BugWorkaroundDisplayList: 
      public H3DDisplayListObject::DisplayList {
    };
 
    class H3DAPI_API DisplayList: public BugWorkaroundDisplayList {
    public:
      virtual void callList( bool build_list = true );
      virtual unsigned int cachingDelay();
      virtual bool usingCaching();
    };
 
    class H3DAPI_API SFBoundTree: 
      public RefCountSField< HAPI::Collision::BinaryBoundTree > {
      virtual void update();
    };
 
    X3DGeometryNode( Inst< SFNode      >  _metadata = 0,
                     Inst< SFBound     > _bound = 0,
                     Inst< DisplayList > _displayList = 0,
                     Inst< MFBool      > _isTouched = 0,
                     Inst< MFVec3f     > _force = 0,
                     Inst< MFVec3f     > _contactPoint = 0,
                     Inst< MFVec3f     > _contactNormal = 0,
                     Inst< MFVec3f     > _contactTexCoord = 0,
                     Inst< SFBoundTree > _boundTree = 0,
                     Inst< SFVec3f     > _centerOfMass = 0);
 
    virtual void traverseSG( TraverseInfo &ti );
 
    virtual bool lineIntersect( 
      const Vec3f &from,
      const Vec3f &to,    
      LineIntersectResult &result );
 
    virtual void closestPoint( const Vec3f &p,
                               NodeIntersectResult &result );
 
    virtual bool movingSphereIntersect( H3DFloat radius,
                                        const Vec3f &from, 
                                        const Vec3f &to,
                                        NodeIntersectResult &result );
 
    virtual void glRender() {
      bool previous_allow = allowingCulling();
      bool prev_draw = draw_debug_options;
      allowCulling( false );
      draw_debug_options = false;
      displayList->callList( false );
      draw_debug_options = prev_draw;
      allowCulling( previous_allow );
    }
 
 
    virtual H3DShadowObjectNode *getShadowObject();
 
    inline void useCulling( bool enabled ) {
      use_culling = enabled;
    }
 
    inline bool usingCulling() {
      return use_culling;
    }
 
    inline void allowCulling( bool allow ) {
      allow_culling = allow;
    } 
 
    inline void useBackFaceCulling( bool enabled ) {
      useCulling( enabled );
      setCullFace( GL_BACK );
    }
 
    inline bool allowingCulling() {
      return allow_culling;
    }
 
    inline void setCullFace( GLenum face ) {
      cull_face = face;
    }
 
    inline GLenum getCullFace() {
      return cull_face;
    }
 
    template< class OptionNodeType >
    void getOptionNode( OptionNodeType * &option ) {
       for( MFOptionsNode::const_iterator i = options->begin();
           i != options->end(); ++i ) {
        OptionNodeType *_options = dynamic_cast< OptionNodeType * >( *i );
        if( _options ) {
          option = _options;
          return;
        }
       }
      option = NULL;
    }
 
    int getHapticShapeId( unsigned int index );
 
    virtual ~X3DGeometryNode();
 
#ifdef HAVE_OPENHAPTICS    
    HAPI::HAPIHapticShape *getOpenGLHapticShape( unsigned int hd_index,
                                                 H3DSurfaceNode *_surface,
                                                 const Matrix4f &_transform,
                                                 int _nr_vertices = -1 );
#endif
    virtual string defaultXMLContainerField() {
      return "geometry";
    }
 
    virtual bool supportsTangentAttributes() {
      return false;
    }
    
    virtual void getBound( HAPI::Vec3 &center, HAPI::Vec3& size ) {
      BoxBound *b = dynamic_cast< BoxBound * >( bound->getValue() );
      if( b ) {
        center = b->center->getValue();
        size = b->size->getValue();
      } else {
        HAPIGLShape::getBound( center, size );
      }
    }
 
    virtual void initialize();
 
    H3DUniquePtr< MFBool >  isTouched;
 
    H3DUniquePtr< MFVec3f >  force;
 
    H3DUniquePtr< MFVec3f >  contactPoint;
 
    H3DUniquePtr< MFVec3f >  contactTexCoord;
 
    H3DUniquePtr< MFVec3f >  contactNormal;
 
    H3DUniquePtr< SFVec3f >  centerOfMass;
 
    H3DUniquePtr< SFBoundTree > boundTree;
 
    H3DUniquePtr< MFOptionsNode > options;
 
    static H3DNodeDatabase database;
 
  protected:
    AutoRef< Node > shadow_volume;
 
    static void cleanUpFunction( void *userdata) {
      static_cast< X3DGeometryNode * >(userdata)->unref();
    }
 
    inline void renderTexCoordForActiveTexture( const Vec3f &tc ) {
      X3DTextureCoordinateNode::renderTexCoordForActiveTexture( tc );
    }
 
    void createAndAddHapticShapes( TraverseInfo &ti,
                                   H3DHapticsDevice *hd,
                                   H3DInt32 hd_index,
                                   OpenHapticsOptions *openhaptics_options );
 
    void addDynamicInfoToShape( TraverseInfo &ti,
                                const string &dynamic_mode,
                                HAPI::HAPIHapticShape *shape );
 
    vector< pair< int, pair< Matrix4f, H3DTime > > > haptic_shape_ids;
 
    bool use_culling, allow_culling;
    bool draw_debug_options;
    GLenum cull_face;
    friend class H3DHapticsDevice;
 
    // Variable used to indicate if warning is printed.
    bool print_negative_scaling_warning;
 
  };
}
 
#endif