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00002 * Copyright 1991-1996, Silicon Graphics, Inc. 00003 * ALL RIGHTS RESERVED 00004 * 00005 * UNPUBLISHED -- Rights reserved under the copyright laws of the United 00006 * States.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) 1996-2017 BY FEI S.A.S, *** 00042 *** MERIGNAC, FRANCE *** 00043 *** ALL RIGHTS RESERVED *** 00044 **=======================================================================*/ 00045 /*======================================================================= 00046 ** Modified by : VSG (MMM YYYY) 00047 **=======================================================================*/ 00048 00049 00050 #ifndef _SO_MATERIAL_BUNDLE 00051 #define _SO_MATERIAL_BUNDLE 00052 00053 #include <Inventor/bundles/SoBundle.h> 00054 00055 class SoGLLazyElement; 00056 class SoGLRenderAction; 00057 00058 00060 // 00061 // Class: SoMaterialBundle 00062 // 00063 // Bundle that allows shapes to deal with materials more easily. 00064 // Since materials deal with several elements simultaneously, this 00065 // bundle hides a lot of this work from shapes. 00066 // 00067 // Much of the functionality of this bundle has been replaced by the 00068 // SoLazyElement. 00069 // 00071 00072 00073 { 00074 00075 public: 00076 // Constructor - takes the action the bundle is used for 00077 SoMaterialBundle(SoGLRenderAction *action); 00078 00079 // Destructor 00080 ~SoMaterialBundle(); 00081 00082 // This can be called by shapes to prepare for sending multiple 00083 // materials later on. It is not required, since all of the send 00084 // methods call it if necessary. However, it allows the bundle to 00085 // set up some optimizations that are not possible to do later on. 00086 void setUpMultiple() 00087 { accessElements(FALSE, FALSE); 00088 sendMultiple = TRUE; } 00089 00090 // Makes sure the first defined material in the state is sent to 00091 // GL. 00092 void sendFirst() { send(0, FALSE); } 00093 00094 // Sends indexed material to the GL if it's not already there. 00095 void send(int index, SbBool isBetweenBeginEnd) 00096 { reallySend(index, isBetweenBeginEnd, FALSE); } 00097 00098 // Sends indexed material to the GL even if it's already there. 00099 // This method can be used by SoMaterial and related nodes to send 00100 // the base material to the GL to avoid cache dependencies on materials. 00101 void forceSend(int index) 00102 { reallySend(index, FALSE, TRUE); } 00103 00104 // Returns TRUE if only base color part of material is used 00105 SbBool isColorOnly() const { return colorOnly; } 00106 00107 void reinitialize(SoState *state); 00108 00109 private: 00110 static bool isSendAlwaysMode() 00111 { return s_sendAlways; } 00112 00113 private: 00114 SbBool firstTime; // TRUE if nothing sent yet 00115 int lastIndex; // Last index reallySend()ed 00116 SbBool colorOnly; // TRUE if only base color sent 00117 SbBool fastColor; // TRUE if can send color for diffColor 00118 int numMaterials; // Number of materials 00119 SbBool sendMultiple; // indicates multiple diffuse are sent. 00120 00121 // Material component elements: 00122 const SoGLLazyElement *lazyElt; 00123 00124 // Really sends stuff to GL 00125 void reallySend(int index, SbBool isBetweenBeginEnd, 00126 SbBool avoidFastColor); 00127 00128 // Accesses and stores pointers to necessary elements 00129 void accessElements(SbBool isBetweenBeginEnd, 00130 SbBool avoidFastColor); 00131 00132 // Setup by OIV_GL_SEND_ALWAYS, it allow to send the material color 00133 // each time reallySend is called instead of optimizing by sending the color only when 00134 // not already on the state. 00135 // It means that the display list size will be greater, but provide a 2x acceleration on 00136 // newer GPU. (default is TRUE) 00137 static bool s_sendAlways; 00138 }; 00139 00140 #endif /* _SO_MATERIAL_BUNDLE */ 00141 00142 00143