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 SoTextureCoordinateBundle 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_TEXTURE_COORDINATE_BUNDLE 00056 #define _SO_TEXTURE_COORDINATE_BUNDLE 00057 00058 #include <Inventor/bundles/SoBundle.h> 00059 #include <Inventor/elements/SoGLTextureCoordinateElement.h> 00060 #include <Inventor/misc/SoState.h> 00061 00090 00091 SoEXTENDER class INVENTOR_API SoTextureCoordinateBundle : public SoBundle { 00092 00093 public: 00102 SoTextureCoordinateBundle(SoAction *action, SbBool forRendering, 00103 SbBool setUpDefault = TRUE); 00104 00106 ~SoTextureCoordinateBundle(); 00107 00109 SbBool needCoordinates() const { return needCoords; } 00110 00112 SbBool isFunction() const { return isFunc; } 00113 00116 SbVec4f get(const SbVec3f &point, const SbVec3f &normal) const 00117 { return texCoordElt->get(point, normal); } 00118 00121 SbVec4f get(int index) const 00122 { if (tCoords) return(SbVec4f(tCoords[index][0],tCoords[index][1], 00123 0.0, 1.0)); 00124 else return texCoordElt->get4(index); } 00125 00127 void send(int index) const { GLTexCoordElt->send(index); } 00128 00129 private: 00131 const SoTextureCoordinateElement *texCoordElt; 00132 const SoGLTextureCoordinateElement *GLTexCoordElt; 00133 00134 SbBool needCoords; 00135 SbBool isFunc; 00136 SbBool isRendering; 00137 SbBool setFunction; 00138 00141 int coordS, coordT; 00143 SbVec4f sVector, tVector; 00145 const SbVec2f * tCoords; 00146 00148 void setUpForPrimGen(SoAction *action, 00149 SbBool setUpDefault); 00150 void setUpForGLRender(SoAction *action); 00151 00153 void setUpDefaultCoordSpace(SoAction *action); 00154 00158 static const SbVec4f &generateCoord(void *userData, 00159 const SbVec3f &point, 00160 const SbVec3f &normal); 00161 00165 static void setUpTexGen(void *userData); 00166 }; 00167 00168 #endif /* _SO_TEXTURE_COORDINATE_BUNDLE */