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00002 * Copyright 1991-1996, Silicon Graphics, Inc. 00003 * ALL RIGHTS RESERVED 00004 * 00005 * UNPUBLISHED -- Rights reserved under the copyright laws of the United 00006 * States.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 ** Modified by : Nick Thompson (MMM yyyy) 00026 **=======================================================================*/ 00027 /*======================================================================= 00028 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.), *** 00029 *** AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT. *** 00030 *** *** 00031 *** REPRODUCTION, DISCLOSURE, OR USE, IN WHOLE OR IN PART, OTHER THAN AS *** 00032 *** SPECIFIED IN THE LICENSE ARE NOT TO BE UNDERTAKEN EXCEPT WITH PRIOR *** 00033 *** WRITTEN AUTHORIZATION OF FEI S.A.S. *** 00034 *** *** 00035 *** RESTRICTED RIGHTS LEGEND *** 00036 *** USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS *** 00037 *** WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN *** 00038 *** SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT *** 00039 *** CLAUSE AT FAR 52.227-19 OR SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN *** 00040 *** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013. *** 00041 *** *** 00042 *** COPYRIGHT (C) 1996-2020 BY FEI S.A.S, *** 00043 *** BORDEAUX, FRANCE *** 00044 *** ALL RIGHTS RESERVED *** 00045 **=======================================================================*/ 00046 /*======================================================================= 00047 ** Modified by : VSG (MMM YYYY) 00048 **=======================================================================*/ 00049 00050 00051 #ifndef _SO_CUBE_ 00052 #define _SO_CUBE_ 00053 00054 #include <Inventor/SbLinear.h> 00055 #include <Inventor/fields/SoSFFloat.h> 00056 #include <Inventor/nodes/SoShape.h> 00057 00058 class SoVBOMgr; 00120 class SoCube : public SoShape { 00121 00122 SO_NODE_HEADER(SoCube); 00123 00124 public: 00125 // Fields 00129 SoSFFloat width; // Size in x dimension 00133 SoSFFloat height; // Size in y dimension 00137 SoSFFloat depth; 00138 00142 SoCube(); 00143 00144 private: 00145 // Implements actions 00146 virtual void GLRender(SoGLRenderAction *action); 00147 virtual void rayPick(SoRayPickAction *action); 00148 virtual void getPrimitiveCount(SoGetPrimitiveCountAction *action); 00149 00150 // Computes bounding box of cube 00151 virtual void computeBBox(SoAction *action, SbBox3f &box, 00152 SbVec3f ¢er); 00153 00154 private: 00155 00157 static void initClass(); 00159 static void exitClass(); 00160 00161 SB_THREAD_TLS_HEADER(); 00162 00163 // Renders or picks cube representing given bounding box. These 00164 // are used by SoShape to implement BOUNDING_BOX complexity. 00165 void GLRenderBoundingBox(SoGLRenderAction *action, const SbXfBox3d &bbox); 00166 void GLRenderBoundingBox(SoGLRenderAction *action, const SbBox3f &bbox) 00167 { 00168 GLRenderBoundingBox(action, SbXfBox3d(SbBox3d(bbox))); 00169 } 00170 void rayPickBoundingBox(SoRayPickAction *action, const SbBox3f &bbox); 00171 00172 private: 00173 // Generates triangles representing a cube 00174 virtual void generatePrimitives(SoAction *action); 00175 00176 // Overrides standard method to create an SoCubeDetail instance 00177 virtual SoDetail * createTriangleDetail(SoRayPickAction *action, 00178 const SoPrimitiveVertex *v1, 00179 const SoPrimitiveVertex *v2, 00180 const SoPrimitiveVertex *v3, 00181 SoPickedPoint *pp); 00182 00183 virtual ~SoCube(); 00184 00185 using SoShape::GLRenderBoundingBox; 00186 00187 private: 00188 static SbVec3f coords[8]; // Corner coordinates 00189 static SbVec2f texCoords[4]; // Face corner texture coordinates 00190 static SbVec3f normals[6]; // Face normals 00191 static SbVec3f verts[6][4]; // Vertex 00192 00193 // PER_VERTEX infos: 00194 static SbVec3f s_normals[24]; // vertex normals 00195 static SbVec2f s_texCoords[24]; // vertex texCoords 00196 00197 // This flag indicates whether picking is done on a real cube or a 00198 // cube that is just a bounding box representing another shape. If 00199 // this flag is TRUE, a pick on the cube should not generate a 00200 // detail, since the bounding box is not really in the picked path. 00201 SbBool pickingBoundingBox; 00202 00203 // Returns TRUE if per face materials are specified 00204 SbBool isMaterialPerFace(SoAction *action) const; 00205 00206 // Computes number of divisions per side based on complexity 00207 int computeNumDivisions(SoAction *action) const; 00208 00209 // Computes real half-width, -height, -depth 00210 void getSize(float &hWidth, 00211 float &hHeight, 00212 float &hDepth) const; 00213 00214 // These render the cube 00215 void GLRenderGeneric(SoGLRenderAction *action, 00216 SbBool sendNormals, SbBool doTextures); 00217 void GLRenderNvertTnone(SoGLRenderAction *action); 00218 00219 void GLRenderDivision1(SoGLRenderAction *action); 00220 00221 // struct for TLS 00222 static SoVBOMgr* getVBOMgr(); 00223 struct MTstruct { 00224 SoVBOMgr* VBOMgr; 00225 }; 00226 00227 // SoShape needs to get at the above methods 00228 friend class SoShape; 00229 }; 00230 00231 #endif /* _SO_CUBE_ */ 00232 00233