00001 /* 00002 ----------------------------------------------------------------------------- 00003 This source file is part of OGRE 00004 (Object-oriented Graphics Rendering Engine) 00005 For the latest info, see http://ogre.sourceforge.net/ 00006 00007 Copyright © 2000-2002 The OGRE Team 00008 Also see acknowledgements in Readme.html 00009 00010 This program is free software; you can redistribute it and/or modify it under 00011 the terms of the GNU Lesser General Public License as published by the Free Software 00012 Foundation; either version 2 of the License, or (at your option) any later 00013 version. 00014 00015 This program is distributed in the hope that it will be useful, but WITHOUT 00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. 00018 00019 You should have received a copy of the GNU Lesser General Public License along with 00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple 00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to 00022 http://www.gnu.org/copyleft/lesser.txt. 00023 ----------------------------------------------------------------------------- 00024 */ 00025 #ifndef _RenderOperation_H__ 00026 #define _RenderOperation_H__ 00027 00028 #include "OgrePrerequisites.h" 00029 #include "OgreColourValue.h" 00030 00031 namespace Ogre { 00066 class RenderOperation { 00067 public: 00068 enum OpType { 00069 OT_POINT_LIST, 00070 OT_LINE_LIST, 00071 OT_LINE_STRIP, 00072 OT_TRIANGLE_LIST, 00073 OT_TRIANGLE_STRIP, 00074 OT_TRIANGLE_FAN 00075 }; 00084 enum VertexOptions { 00086 VO_NORMALS = 1, 00088 VO_TEXTURE_COORDS = 2, 00090 VO_DIFFUSE_COLOURS = 4, 00092 VO_SPECULAR_COLOURS = 8, 00094 VO_BLEND_WEIGHTS = 16 00095 }; 00096 00098 struct VertexBlendData 00099 { 00100 unsigned short matrixIndex; 00101 Real blendWeight; 00102 }; 00103 00104 // true to use pIndexes to reference individual lines/triangles rather than embed. Allows vertex reuse. 00105 bool useIndexes; 00106 00108 unsigned int numVertices; 00109 00111 unsigned short numBlendWeightsPerVertex; 00112 00113 // No memory allocation here, 00114 // assumed that all pointers are pointing 00115 // elsewhere e.g. model class data 00116 00122 Real* pVertices; 00123 00125 unsigned short vertexStride; 00126 00128 Real* pNormals; 00129 00131 unsigned short normalStride; 00132 00138 Real* pTexCoords[OGRE_MAX_TEXTURE_COORD_SETS]; 00139 00141 unsigned short texCoordStride[OGRE_MAX_TEXTURE_COORD_SETS]; 00142 00144 int numTextureCoordSets; 00145 00150 int numTextureDimensions[OGRE_MAX_TEXTURE_COORD_SETS]; 00151 00153 RGBA* pDiffuseColour; 00154 00156 unsigned short diffuseStride; 00157 00159 RGBA* pSpecularColour; 00160 00162 unsigned short specularStride; 00163 00169 VertexBlendData* pBlendingWeights; 00170 00175 unsigned short* pIndexes; 00176 00178 unsigned int numIndexes; 00179 00181 int vertexOptions; 00183 OpType operationType; 00184 00185 RenderOperation() 00186 { 00187 // Initialise all things 00188 vertexStride = normalStride = diffuseStride = specularStride = 0; 00189 numBlendWeightsPerVertex = 0; 00190 for (int i = 0; i < OGRE_MAX_TEXTURE_COORD_SETS; ++i) 00191 { 00192 texCoordStride[i] = 0; 00193 pTexCoords[0] = 0; 00194 } 00195 00196 pVertices = 0; 00197 pNormals = 0; 00198 pDiffuseColour = 0; 00199 pSpecularColour = 0; 00200 pBlendingWeights = 0; 00201 } 00202 }; 00203 00204 /* Example usage (camera at (0,0,0) pointing down -Z (lookAt(0,0,-300)) 00205 00206 RenderOperation ro; 00207 float vertexData[9] = {100, 0, -300, 00208 0, 200, -300, 00209 -100, 0, -300 }; 00210 float normalData[9] = { 0, 0, 1, 00211 0, 0, 1, 00212 0, 0, 1}; 00213 ro.operationType = RenderOperation::OT_TRIANGLE_LIST; 00214 ro.numVertices = 3; 00215 ro.useIndexes = false; 00216 ro.vertexOptions = RenderOperation::VO_NORMAL; 00217 ro.pVertices = vertexData; 00218 ro.pNormals = normalData; 00219 mDestRenderSystem->_render(ro); 00220 */ 00221 } 00222 00223 00224 00225 #endif
Copyright © 2002 by The OGRE Team