Open Inventor Reference
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00001 /* 00002 * 00003 * Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved. 00004 * 00005 * This library is free software; you can redistribute it and/or 00006 * modify it under the terms of the GNU Lesser General Public 00007 * License as published by the Free Software Foundation; either 00008 * version 2.1 of the License, or (at your option) any later version. 00009 * 00010 * This library is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 * Lesser General Public License for more details. 00014 * 00015 * Further, this software is distributed without any warranty that it is 00016 * free of the rightful claim of any third person regarding infringement 00017 * or the like. Any license provided herein, whether implied or 00018 * otherwise, applies only to this software file. Patent licenses, if 00019 * any, provided herein do not apply to combinations of this program with 00020 * other software, or any other product whatsoever. 00021 * 00022 * You should have received a copy of the GNU Lesser General Public 00023 * License along with this library; if not, write to the Free Software 00024 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00025 * 00026 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, 00027 * Mountain View, CA 94043, or: 00028 * 00029 * http://www.sgi.com 00030 * 00031 * For further information regarding this notice, see: 00032 * 00033 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/ 00034 * 00035 */ 00036 00037 00038 /* 00039 * Copyright (C) 1990,91 Silicon Graphics, Inc. 00040 * 00041 _______________________________________________________________________ 00042 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00043 | 00044 | $Revision: 1.1.1.1 $ 00045 | 00046 | Description: 00047 | This file defines the SoNormalBundle class. 00048 | 00049 | Author(s) : Paul S. Strauss 00050 | 00051 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00052 _______________________________________________________________________ 00053 */ 00054 00055 #ifndef _SO_NORMAL_BUNDLE 00056 #define _SO_NORMAL_BUNDLE 00057 00058 #include <Inventor/bundles/SoBundle.h> 00059 #include <Inventor/elements/SoGLNormalElement.h> 00060 #include <Inventor/misc/SoNormalGenerator.h> 00061 00076 00077 SoEXTENDER class INVENTOR_API SoNormalBundle : public SoBundle { 00078 00079 public: 00084 SoNormalBundle(SoAction *action, SbBool forRendering); 00085 00087 ~SoNormalBundle(); 00088 00090 SbBool shouldGenerate(int numNeeded); 00091 00094 void initGenerator(int initialNum = 100); 00095 00102 00105 void beginPolygon() 00106 { generator->beginPolygon(); } 00107 void polygonVertex(const SbVec3f &point) 00108 { generator->polygonVertex(point); } 00109 void endPolygon() 00110 { generator->endPolygon(); } 00111 00113 void triangle(const SbVec3f &p1, 00114 const SbVec3f &p2, 00115 const SbVec3f &p3) 00116 { generator->triangle(p1, p2, p3); } 00117 00133 void generate(int startIndex = 0, 00134 SbBool addToState=TRUE); 00135 00137 const SbVec3f * getGeneratedNormals() const 00138 { return generator->getNormals(); } 00139 int getNumGeneratedNormals() const 00140 { return generator->getNumNormals(); } 00141 00142 00149 void set(int32_t numNormals, const SbVec3f *normals); 00150 00153 const SbVec3f & get(int index) const { return normElt->get(index); } 00154 00156 void send(int index) const { GLNormElt->send(index); } 00157 00158 SoINTERNAL public: 00159 SoNormalGenerator *generator; 00160 00161 private: 00163 const SoNormalElement *normElt; 00164 const SoGLNormalElement *GLNormElt; 00165 00166 SbBool isRendering; 00167 SbBool pushedState; 00168 SoNode *currentNode; 00169 }; 00170 00171 #endif /* _SO_NORMAL_BUNDLE */ 00172