SoIndexedTriangleSet.h

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/*
 *
 *  Copyright (C) 2000 Silicon Graphics, Inc.  All Rights Reserved. 
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  Further, this software is distributed without any warranty that it is
 *  free of the rightful claim of any third person regarding infringement
 *  or the like.  Any license provided herein, whether implied or
 *  otherwise, applies only to this software file.  Patent licenses, if
 *  any, provided herein do not apply to combinations of this program with
 *  other software, or any other product whatsoever.
 * 
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 *  Mountain View, CA  94043, or:
 * 
 *  http://www.sgi.com 
 * 
 *  For further information regarding this notice, see: 
 * 
 *  http://oss.sgi.com/projects/GenInfo/NoticeExplan/
 *
 */
 
 
/*
 * Copyright (C) 1990,91   Silicon Graphics, Inc.
 *
 _______________________________________________________________________
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 |
 |   $Revision: 1.1.1.1 $
 |
 |   Description:
 |      This file defines the SoIndexedTriangleSet node class.
 |
 |   Author(s)          : Paul S. Strauss, Gavin Bell, Florian Link
 |
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 _______________________________________________________________________
 */
 
#ifndef  _SO_INDEXED_TRIANGLE_SET_
#define  _SO_INDEXED_TRIANGLE_SET_
 
#include <Inventor/system/SbSystem.h>
#include <Inventor/nodes/SoIndexedShape.h>
#include <Inventor/fields/SoSFBool.h>
 
class SoVertexArrayIndexer;
 
 
class SoNormalBundle;
class SoCoordinateElement;
class SoShapeStyleElement;
 
class INVENTOR_API SoIndexedTriangleSet : public SoIndexedShape {
 
    SO_NODE_HEADER(SoIndexedTriangleSet);
 
  public:
    // \name Fields
    SoSFBool sendAdjacency;
 
    SoIndexedTriangleSet();
 
  SoEXTENDER public:
    virtual void        GLRender(SoGLRenderAction *action);
 
    virtual bool        generateDefaultNormals(SoState *state,
                                               SoNormalBundle *nb);
 
    typedef void (SoIndexedTriangleSet::*PMFS)(SoGLRenderAction *);
                                                  
  SoINTERNAL public:
    static void         initClass();
 
    enum Binding {
        OVERALL, PER_FACE, PER_FACE_INDEXED, PER_VERTEX,
            PER_VERTEX_INDEXED
    };
 
  protected:
    virtual void        generatePrimitives(SoAction *action);
 
    virtual SoDetail *  createTriangleDetail(SoRayPickAction *action,
                                             const SoPrimitiveVertex *v1,
                                             const SoPrimitiveVertex *v2,
                                             const SoPrimitiveVertex *v3,
                                             SoPickedPoint *pp);
    ~SoIndexedTriangleSet();
 
  private:
    void GLRenderInternal( SoGLRenderAction * action, uint32_t useTexCoordsAnyway, const SoShapeStyleElement * shapeStyle);
 
    Binding             savedNormalBinding;
 
    Binding             getMaterialBinding(SoAction *action);
    Binding             getNormalBinding(SoAction *action,
                                         SoNormalBundle *nb);
 
    bool                figureNormals(SoState *state, SoNormalBundle *nb);
 
    virtual void        notify(SoNotList *list);
 
    void setupNumTrisQuadsFaces();
 
    int     numTris;
 
    SoVertexArrayIndexer* _triangleIndexer;
 
    void TriOmOn(SoGLRenderAction *); void TriOmOnT(SoGLRenderAction *);
    void TriOmFn(SoGLRenderAction *); void TriOmFnT(SoGLRenderAction *);
    void TriOmVn(SoGLRenderAction *); void TriOmVnT(SoGLRenderAction *);
    void TriFmOn(SoGLRenderAction *); void TriFmOnT(SoGLRenderAction *);
    void TriFmFn(SoGLRenderAction *); void TriFmFnT(SoGLRenderAction *);
    void TriFmVn(SoGLRenderAction *); void TriFmVnT(SoGLRenderAction *);
    void TriVmOn(SoGLRenderAction *); void TriVmOnT(SoGLRenderAction *);
    void TriVmFn(SoGLRenderAction *); void TriVmFnT(SoGLRenderAction *);
    void TriVmVn(SoGLRenderAction *); void TriVmVnT(SoGLRenderAction *);
 
    static PMFS TriRenderFunc[32];
};
 
#endif /* _SO_INDEXED_TRIANGLE_SET_ */