00001 /*======================================================================= 00002 * Copyright 1991-1996, Silicon Graphics, Inc. 00003 * ALL RIGHTS RESERVED 00004 * 00005 * UNPUBLISHED -- Rights reserved under the copyright laws of the United 00006 * States. Use of a copyright notice is precautionary only and does not 00007 * imply publication or disclosure. 00008 * 00009 * U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND: 00010 * Use, duplication or disclosure by the Government is subject to restrictions 00011 * as set forth in FAR 52.227.19(c)(2) or subparagraph (c)(1)(ii) of the Rights 00012 * in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or 00013 * in similar or successor clauses in the FAR, or the DOD or NASA FAR 00014 * Supplement. Contractor/manufacturer is Silicon Graphics, Inc., 00015 * 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311. 00016 * 00017 * THE CONTENT OF THIS WORK CONTAINS CONFIDENTIAL AND PROPRIETARY 00018 * INFORMATION OF SILICON GRAPHICS, INC. ANY DUPLICATION, MODIFICATION, 00019 * DISTRIBUTION, OR DISCLOSURE IN ANY FORM, IN WHOLE, OR IN PART, IS STRICTLY 00020 * PROHIBITED WITHOUT THE PRIOR EXPRESS WRITTEN PERMISSION OF SILICON 00021 * GRAPHICS, INC. 00022 **=======================================================================*/ 00023 /*======================================================================= 00024 ** Author : Paul S. Strauss (MMM yyyy) 00025 **=======================================================================*/ 00026 /*======================================================================= 00027 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.), *** 00028 *** AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT. *** 00029 *** *** 00030 *** REPRODUCTION, DISCLOSURE, OR USE, IN WHOLE OR IN PART, OTHER THAN AS *** 00031 *** SPECIFIED IN THE LICENSE ARE NOT TO BE UNDERTAKEN EXCEPT WITH PRIOR *** 00032 *** WRITTEN AUTHORIZATION OF FEI S.A.S. *** 00033 *** *** 00034 *** RESTRICTED RIGHTS LEGEND *** 00035 *** USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS *** 00036 *** WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN *** 00037 *** SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT *** 00038 *** CLAUSE AT FAR 52.227-19 OR SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN *** 00039 *** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013. *** 00040 *** *** 00041 *** COPYRIGHT (C) 1996-2020 BY FEI S.A.S, *** 00042 *** BORDEAUX, FRANCE *** 00043 *** ALL RIGHTS RESERVED *** 00044 **=======================================================================*/ 00045 /*======================================================================= 00046 ** Modified by : VSG (MMM YYYY) 00047 **=======================================================================*/ 00048 00049 00050 #ifndef _SO_VRMLTRIANGLE_STRIP_SET_ 00051 #define _SO_VRMLTRIANGLE_STRIP_SET_ 00052 00053 #include <Inventor/fields/SoMFInt32.h> 00054 #include <Inventor/fields/SoSFFloat.h> 00055 #include <Inventor/fields/SoSFNode.h> 00056 #include <Inventor/VRMLnodes/SoVRMLVertexShape.h> 00057 00058 00059 #if defined(OIV_IGNORE_VRML_DEPRECATED) 00060 #include <SoDeprecationRules.h> 00061 #pragma push_macro("SoDEPRECATED_CLASS") 00062 #pragma push_macro("SoDEPRECATED_TYPEDEF") 00063 #undef SoDEPRECATED_CLASS 00064 #undef SoDEPRECATED_TYPEDEF 00065 #define SoDEPRECATED_CLASS(x,y) 00066 #define SoDEPRECATED_TYPEDEF(x,y) 00067 #endif 00068 00070 // 00071 // Class: SoVRMLTriangleStripSet 00072 // 00073 // TriangleStripSet node. Each strip in the set consists of n 00074 // vertices located at consecutive entries in the current 00075 // coordinates. If materials or normals are bound to 00076 // vertices, they will begin at 0 as well. The number of vertices 00077 // in each strip is determined by successive entries in the stripCount field. 00078 // 00080 00081 class SoCoordinateElement; 00082 00083 #ifndef IV_STRICT 00084 // Deprecated feature; specifying USE_REST_OF_VERTICES as the last 00085 // value in the numVertices field will use all the points in the 00086 // coordinate array. 00087 #define SO_TRI_STRIP_SET_USE_REST_OF_VERTICES (-1) 00088 00089 #endif 00090 class SoDEPRECATED SoVRMLTriangleStripSet : public SoVRMLVertexShape { 00182 00183 SO_NODE_HEADER(SoVRMLTriangleStripSet); 00184 00185 public: 00186 // Fields 00194 SoMFInt32 stripCount; 00200 SoSFBool ccw; 00206 SoSFBool solid; 00210 SoVRMLTriangleStripSet(); 00211 00212 private: 00213 // Implement actions 00214 virtual void GLRender(SoGLRenderAction *action); 00215 00216 // Generates default normals using the given normal bundle. 00217 // Returns TRUE. 00218 virtual SbBool generateDefaultNormals(SoState *state, SoNormalBundle *nb); 00219 00220 virtual void getPrimitiveCount(SoGetPrimitiveCountAction *action); 00221 00222 // Computes bounding box of triangle strips 00223 virtual void computeBBox(SoAction *action, SbBox3f &box, SbVec3f ¢er); 00224 00225 private: 00226 static void initClass(); 00227 static void exitClass(); 00228 00229 //Typedef of pointer to method on TriangleStripSet; 00230 //This will be used to simplify declaration and initialization. 00231 typedef void (SoVRMLTriangleStripSet::*PMTSS)(SoGLRenderAction *); 00232 00233 // Compute transformations from Modelling coordinate to tangent space (facet space). 00234 // virtual SbMatrix3* computeVtxTangentSpaceMat(const float *bumpTexCoords, int &numMat) const ; 00235 00236 private: 00237 // Generates triangles representing strips 00238 virtual void generatePrimitives(SoAction *action); 00239 00240 // Overrides standard method to create an SoFaceDetail instance 00241 virtual SoDetail *createTriangleDetail(SoRayPickAction *action, 00242 const SoPrimitiveVertex *v1, 00243 const SoPrimitiveVertex *v2, 00244 const SoPrimitiveVertex *v3, 00245 SoPickedPoint *pp); 00246 00247 virtual ~SoVRMLTriangleStripSet(); 00248 00249 private: 00250 // Blow vpCache when vertexProperty field changes: 00251 virtual void notify(SoNotList *list); 00252 00253 // This stores the total number of vertices; we use this 00254 // information to influence Separator's auto-caching algorithm 00255 // (shapes with very few triangles should be cached because 00256 // traversing them can be expensive, shapes with lots of triangles 00257 // shouldn't be cached because they'll take up too much memory). 00258 int totalStripCount; 00259 00260 // render function 00261 void doRendering(SoGLRenderAction *action, const SoShapeStyleElement* shapeStyle); 00262 00263 static const int AUTO_CACHE_TSS_MIN_WITHOUT_VP; 00264 static const int AUTO_CACHE_TSS_MAX; 00265 }; 00266 00267 00268 00269 00270 #if defined(OIV_IGNORE_VRML_DEPRECATED) 00271 #pragma pop_macro("SoDEPRECATED_TYPEDEF") 00272 #pragma pop_macro("SoDEPRECATED_CLASS") 00273 #endif 00274 00275 #endif /* _SO_VRMLTRIANGLE_STRIP_SET_ */ 00276