IndexedFaceSet.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 __INDEXEDFACESET_H__
#define __INDEXEDFACESET_H__
 
#include <H3D/X3DComposedGeometryNode.h>
#include <H3D/CoordBoundField.h>
#include <H3D/FloatVertexAttribute.h>
#include <H3D/MFInt32.h>
#include <H3D/SFFloat.h>
 
namespace H3D {
 
  class H3DAPI_API IndexedFaceSet : 
    public X3DComposedGeometryNode {
  public:
    H3D_VALUE_EXCEPTION( int, InvalidTexCoordIndex );
    H3D_VALUE_EXCEPTION( int, InvalidNormalIndex );
    H3D_VALUE_EXCEPTION( int, InvalidColorIndex );
 
    
    class H3DAPI_API AutoNormal: 
      public TypedField< SFNormalNode,
                         Types< SFBool, 
                                SFCoordinateNode, 
                                MFInt32, 
                                SFBool, 
                                SFFloat > > {
      virtual void update();
 
    public:
      virtual X3DNormalNode *generateNormalsPerVertex( 
                                    X3DCoordinateNode *_coord,
                                    const vector< int > &coord_index,
                                    bool _ccw,
                                    H3DFloat crease_angle );
    
       virtual X3DNormalNode *generateNormalsPerVertex( 
                                    X3DCoordinateNode *_coord,
                                    const vector< int > &coord_index,
                                    bool _ccw );
 
      virtual X3DNormalNode *generateNormalsPerFace( 
                                    X3DCoordinateNode *_coord,
                                    const vector< int > &coord_index,
                                    bool _ccw );
 
    };
 
 
    
    class H3DAPI_API AutoTangent: 
      public TypedField< MFVertexAttributeNode,
        Types< SFBool, SFCoordinateNode, MFInt32, SFTextureCoordinateNode, MFInt32, SFFloat, SFBool > > {
 
      virtual void update();
    public:
      virtual void generateTangentsPerVertex( 
                                              X3DCoordinateNode *_coord,
                                              X3DTextureCoordinateNode *tex_coord,
                                              const vector< int > &coord_index,
                                              const vector< int > &tex_coord_index,
                                              FloatVertexAttribute *tangent,
                                              FloatVertexAttribute *binormal
                                              );
 
      virtual void generateTangentsPerVertex(
                                             X3DCoordinateNode *_coord,
                                             X3DTextureCoordinateNode *tex_coord,
                                             const vector< int > &coord_index,
                                             const vector< int > &tex_coord_index,
                                             H3DFloat crease_angle,
                                             bool _ccw,
                                             FloatVertexAttribute *tangent,
                                             FloatVertexAttribute *binormal
                                              );
 
      virtual void generateTangentsPerFace( 
                                           X3DCoordinateNode *_coord,
                                           X3DTextureCoordinateNode *tex_coord,
                                           const vector< int > &coord_index,
                                           const vector< int > &tex_coord_index,
                                           bool normalize_values,
                                           FloatVertexAttribute *tangent,
                                           FloatVertexAttribute *binormal );
 
      Vec3f getTexCoord( X3DCoordinateNode *_coord,
                         X3DTextureCoordinateNode *tex_coord,
                         int index );
 
      void calculateTangent( const Vec3f &a, const Vec3f &b, const Vec3f &c,
                             const Vec3f &ta, const Vec3f &tb, const Vec3f &tc,
                             Vec3f &tangent, Vec3f &binormal );
 
    };
 
    typedef CoordBoundField SFBound;
 
    IndexedFaceSet( Inst< SFNode           > _metadata        = 0,
                    Inst< SFBound          > _bound           = 0,
                    Inst< DisplayList      > _displayList     = 0,
                    Inst< SFColorNode      > _color           = 0,
                    Inst< SFCoordinateNode >  _coord          = 0,
                    Inst< SFNormalNode     > _normal          = 0,
                    Inst< SFTextureCoordinateNode >  _texCoord = 0,
                    Inst< SFBool       > _ccw                = 0,
                    Inst< SFBool       > _colorPerVertex     = 0,
                    Inst< SFBool       >  _normalPerVertex   = 0,
                    Inst< SFBool       > _solid              = 0,
                    Inst< MFVertexAttributeNode > _attrib     = 0,
                    Inst< AutoNormal   > _autoNormal         = 0,
                    Inst< SFBool       > _convex             = 0,
                    Inst< SFFloat      > _creaseAngle        = 0,
                    Inst< MFInt32      > _set_colorIndex     = 0,
                    Inst< MFInt32      > _set_coordIndex     = 0,
                    Inst< MFInt32      > _set_normalIndex    = 0,
                    Inst< MFInt32      > _set_texCoordIndex  = 0,
                    Inst< MFInt32      > _colorIndex         = 0,
                    Inst< MFInt32      > _coordIndex         = 0,
                    Inst< MFInt32      > _normalIndex        = 0,
                    Inst< MFInt32      > _texCoordIndex      = 0, 
                    Inst< SFFogCoordinate > _fogCoord        = 0);
 
    virtual X3DCoordinateNode *getCoord() {
      return static_cast< X3DCoordinateNode * >( coord->getValue() );
    }
 
    virtual void render();
 
    virtual int nrTriangles() {
      return coordIndex->size();
    }
 
    // Traverse the scenegraph. See X3DGeometryNode::traverseSG
    // for more info.
    virtual void traverseSG( TraverseInfo &ti );  
 
    virtual bool supportsTangentAttributes() {
      return true;
    }
 
    H3DUniquePtr< MFInt32 >  set_colorIndex;
 
    H3DUniquePtr< MFInt32 >  set_coordIndex;
 
    H3DUniquePtr< MFInt32 >  set_normalIndex;
 
    H3DUniquePtr< MFInt32 >  set_texCoordIndex;
    
    H3DUniquePtr< MFInt32 >  colorIndex;
 
    H3DUniquePtr< SFBool  >  convex;
 
    H3DUniquePtr< MFInt32 >  coordIndex;
 
    H3DUniquePtr< SFFloat >  creaseAngle;
 
    H3DUniquePtr< MFInt32 >  normalIndex;
 
    H3DUniquePtr< MFInt32 >  texCoordIndex;
 
    H3DUniquePtr< AutoNormal  >  autoNormal;
 
    H3DUniquePtr< AutoTangent  >  autoTangent;
 
    static H3DNodeDatabase database;
 
  protected:
    bool render_tangents;
  };
}
 
#endif