[657] | 1 | /*
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| 2 | -----------------------------------------------------------------------------
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| 3 | This source file is part of OGRE
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| 4 | (Object-oriented Graphics Rendering Engine)
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| 5 | For the latest info, see http://www.ogre3d.org/
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| 6 |
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| 7 | Copyright (c) 2000-2005 The OGRE Team
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| 8 | Also see acknowledgements in Readme.html
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| 9 |
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| 10 | This program is free software; you can redistribute it and/or modify it under
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| 11 | the terms of the GNU Lesser General Public License as published by the Free Software
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| 12 | Foundation; either version 2 of the License, or (at your option) any later
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| 13 | version.
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| 14 |
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| 15 | This program is distributed in the hope that it will be useful, but WITHOUT
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| 16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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| 17 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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| 18 |
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| 19 | You should have received a copy of the GNU Lesser General Public License along with
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| 20 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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| 21 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to
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| 22 | http://www.gnu.org/copyleft/lesser.txt.
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| 23 | -----------------------------------------------------------------------------
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| 24 | */
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| 25 | /***************************************************************************
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| 26 | terrainscenemanager.cpp - description
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| 27 | -------------------
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| 28 | begin : Mon Sep 23 2002
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| 29 | copyright : (C) 2002 by Jon Anderson
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| 30 | email : janders@users.sf.net
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| 31 |
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| 32 | Enhancements 2003 - 2004 (C) The OGRE Team
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| 33 |
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| 34 | ***************************************************************************/
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| 35 | #include <OgreTerrainSceneManager.h>
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| 36 | #include <OgreImage.h>
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| 37 | #include <OgreConfigFile.h>
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| 38 | #include <OgreMaterial.h>
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| 39 | #include <OgreTechnique.h>
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| 40 | #include <OgrePass.h>
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| 41 | #include <OgreCamera.h>
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| 42 | #include "OgreException.h"
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| 43 | #include "OgreStringConverter.h"
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| 44 | #include "OgreRenderSystem.h"
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| 45 | #include "OgreRenderSystemCapabilities.h"
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| 46 | #include "OgreGpuProgram.h"
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| 47 | #include "OgreGpuProgramManager.h"
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| 48 | #include "OgreTerrainVertexProgram.h"
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| 49 | #include "OgreTerrainPage.h"
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| 50 | #include "OgreLogManager.h"
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| 51 |
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| 52 | #define TERRAIN_MATERIAL_NAME "TerrainSceneManager/Terrain"
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| 53 |
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| 54 | namespace Ogre
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| 55 | {
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| 56 | //-------------------------------------------------------------------------
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| 57 | TerrainOptions TerrainSceneManager::mOptions;
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| 58 | //-------------------------------------------------------------------------
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| 59 | //-------------------------------------------------------------------------
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| 60 | TerrainSceneManager::TerrainSceneManager() : OctreeSceneManager( )
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| 61 | {
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| 62 | //setDisplaySceneNodes( true );
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| 63 | //setShowBoxes( true );
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| 64 |
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| 65 | mUseCustomMaterial = false;
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| 66 | mUseNamedParameterLodMorph = false;
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| 67 | mLodMorphParamIndex = 3;
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| 68 | mTerrainRoot = 0;
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| 69 | mActivePageSource = 0;
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| 70 | mPagingEnabled = false;
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| 71 | mLivePageMargin = 0;
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| 72 | mBufferedPageMargin = 0;
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| 73 | // Construct listener manager singleton
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| 74 | new TerrainPageSourceListenerManager();
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| 75 |
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| 76 |
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| 77 |
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| 78 | }
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| 79 | //-------------------------------------------------------------------------
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| 80 | void TerrainSceneManager::shutdown(void)
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| 81 | {
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| 82 | // Make sure the indexes are destroyed during orderly shutdown
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| 83 | // and not when statics are destroyed (may be too late)
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| 84 | TerrainRenderable::_getIndexCache().shutdown();
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| 85 |
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| 86 | // Make sure we free up material (static)
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| 87 | mOptions.terrainMaterial.setNull();
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| 88 |
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| 89 | // destroy listener manager
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| 90 | delete TerrainPageSourceListenerManager::getSingletonPtr();
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| 91 | }
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| 92 | //-------------------------------------------------------------------------
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| 93 | TerrainSceneManager::~TerrainSceneManager()
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| 94 | {
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| 95 | }
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| 96 | //-------------------------------------------------------------------------
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| 97 | void TerrainSceneManager::loadConfig(const String& filename)
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| 98 | {
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| 99 | /* Set up the options */
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| 100 | ConfigFile config;
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| 101 | String val;
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| 102 |
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| 103 | config.load( filename );
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| 104 |
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| 105 | val = config.getSetting( "DetailTile" );
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| 106 | if ( !val.empty() )
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| 107 | setDetailTextureRepeat(atoi(val.c_str()));
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| 108 |
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| 109 | val = config.getSetting( "MaxMipMapLevel" );
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| 110 | if ( !val.empty() )
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| 111 | setMaxGeoMipMapLevel(atoi( val.c_str() ));
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| 112 |
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| 113 |
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| 114 | val = config.getSetting( "PageSize" );
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| 115 | if ( !val.empty() )
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| 116 | setPageSize(atoi( val.c_str() ));
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| 117 | else
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| 118 | OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "Missing option 'PageSize'",
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| 119 | "TerrainSceneManager::loadConfig");
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| 120 |
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| 121 |
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| 122 | val = config.getSetting( "TileSize" );
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| 123 | if ( !val.empty() )
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| 124 | setTileSize(atoi( val.c_str() ));
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| 125 | else
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| 126 | OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "Missing option 'TileSize'",
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| 127 | "TerrainSceneManager::loadConfig");
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| 128 |
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| 129 | Vector3 v = Vector3::UNIT_SCALE;
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| 130 |
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| 131 | val = config.getSetting( "PageWorldX" );
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| 132 | if ( !val.empty() )
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| 133 | v.x = atof( val.c_str() );
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| 134 |
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| 135 | val = config.getSetting( "MaxHeight" );
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| 136 | if ( !val.empty() )
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| 137 | v.y = atof( val.c_str() );
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| 138 |
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| 139 | val = config.getSetting( "PageWorldZ" );
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| 140 | if ( !val.empty() )
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| 141 | v.z = atof( val.c_str() );
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| 142 |
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| 143 | // Scale x/z relative to pagesize
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| 144 | v.x /= mOptions.pageSize;
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| 145 | v.z /= mOptions.pageSize;
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| 146 | setScale(v);
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| 147 |
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| 148 | val = config.getSetting( "MaxPixelError" );
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| 149 | if ( !val.empty() )
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| 150 | setMaxPixelError(atoi( val.c_str() ));
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| 151 |
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| 152 | mDetailTextureName = config.getSetting( "DetailTexture" );
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| 153 |
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| 154 | mWorldTextureName = config.getSetting( "WorldTexture" );
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| 155 |
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| 156 | if ( config.getSetting( "VertexColours" ) == "yes" )
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| 157 | mOptions.coloured = true;
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| 158 |
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| 159 | if ( config.getSetting( "VertexNormals" ) == "yes" )
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| 160 | mOptions.lit = true;
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| 161 |
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| 162 | if ( config.getSetting( "UseTriStrips" ) == "yes" )
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| 163 | setUseTriStrips(true);
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| 164 |
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| 165 | if ( config.getSetting( "VertexProgramMorph" ) == "yes" )
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| 166 | setUseLODMorph(true);
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| 167 |
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| 168 | val = config.getSetting( "LODMorphStart");
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| 169 | if ( !val.empty() )
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| 170 | setLODMorphStart(atof(val.c_str()));
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| 171 |
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| 172 | val = config.getSetting( "CustomMaterialName" );
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| 173 | if ( !val.empty() )
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| 174 | setCustomMaterial(val);
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| 175 |
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| 176 | val = config.getSetting( "MorphLODFactorParamName" );
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| 177 | if ( !val.empty() )
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| 178 | setCustomMaterialMorphFactorParam(val);
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| 179 |
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| 180 | val = config.getSetting( "MorphLODFactorParamIndex" );
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| 181 | if ( !val.empty() )
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| 182 | setCustomMaterialMorphFactorParam(atoi(val.c_str()));
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| 183 |
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| 184 | // Now scan through the remaining settings, looking for any PageSource
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| 185 | // prefixed items
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| 186 | String pageSourceName = config.getSetting("PageSource");
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| 187 | if (pageSourceName == "")
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| 188 | {
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| 189 | OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "Missing option 'PageSource'",
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| 190 | "TerrainSceneManager::loadConfig");
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| 191 | }
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| 192 | TerrainPageSourceOptionList optlist;
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| 193 | ConfigFile::SettingsIterator setIt = config.getSettingsIterator();
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| 194 | while (setIt.hasMoreElements())
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| 195 | {
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| 196 | String name = setIt.peekNextKey();
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| 197 | String value = setIt.getNext();
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| 198 | if (StringUtil::startsWith(name, pageSourceName, false))
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| 199 | {
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| 200 | optlist.push_back(TerrainPageSourceOption(name, value));
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| 201 | }
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| 202 | }
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| 203 | // set the page source
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| 204 | selectPageSource(pageSourceName, optlist);
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| 205 |
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| 206 |
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| 207 | }
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| 208 | //-------------------------------------------------------------------------
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| 209 | /*
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| 210 | void TerrainSceneManager::loadHeightmap(void)
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| 211 | {
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| 212 | Image image;
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| 213 |
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| 214 | image.load( mHeightmapName );
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| 215 |
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| 216 | //check to make sure it's 2^n + 1 size.
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| 217 | if ( image.getWidth() != image.getHeight() ||
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| 218 | ! _checkSize( image.getWidth() ) )
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| 219 | {
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| 220 | String err = "Error: Invalid heightmap size : " +
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| 221 | StringConverter::toString( image.getWidth() ) +
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| 222 | "," + StringConverter::toString( image.getHeight() ) +
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| 223 | ". Should be 2^n+1, 2^n+1";
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| 224 | OGRE_EXCEPT( Exception::ERR_INVALIDPARAMS, err, "TerrainSceneManager::loadHeightmap" );
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| 225 | }
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| 226 |
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| 227 | int upperRange = 0;
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| 228 | int size = image.getWidth();
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| 229 |
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| 230 | if ( image.getFormat() == PF_L8 )
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| 231 | {
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| 232 | upperRange = 255;
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| 233 |
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| 234 | // Parse the char data into floats
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| 235 | mOptions.heightData = new Real[size*size];
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| 236 | const uchar* pSrc = image. getData();
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| 237 | Real* pDest = mOptions.heightData;
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| 238 | for (int i = 0; i < size*size; ++i)
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| 239 | {
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| 240 | *pDest++ = *pSrc++ * mOptions.scale.y;
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| 241 | }
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| 242 | }
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| 243 | else
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| 244 | {
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| 245 | OGRE_EXCEPT( Exception::ERR_INVALIDPARAMS, "Error: Image is not a grayscale image.",
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| 246 | "TerrainSceneManager::setWorldGeometry" );
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| 247 | }
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| 248 |
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| 249 |
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| 250 | // set up the octree size.
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| 251 | float max_x = mOptions.scale.x * size;
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| 252 |
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| 253 | float max_y = upperRange * mOptions.scale.y;
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| 254 |
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| 255 | float max_z = mOptions.scale.z * size;
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| 256 |
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| 257 | resize( AxisAlignedBox( 0, 0, 0, max_x, max_y, max_z ) );
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| 258 |
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| 259 | mOptions.pageSize = size;
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| 260 |
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| 261 | }
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| 262 | */
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| 263 | //-------------------------------------------------------------------------
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| 264 | void TerrainSceneManager::setupTerrainMaterial(void)
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| 265 | {
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| 266 | if (mCustomMaterialName == "")
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| 267 | {
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| 268 | // define our own material
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| 269 | mOptions.terrainMaterial =
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| 270 | MaterialManager::getSingleton().getByName(TERRAIN_MATERIAL_NAME);
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| 271 | if (mOptions.terrainMaterial.isNull())
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| 272 | {
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| 273 | mOptions.terrainMaterial = MaterialManager::getSingleton().create(
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| 274 | "TerrainSceneManager/Terrain",
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| 275 | ResourceGroupManager::getSingleton().getWorldResourceGroupName());
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| 276 |
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| 277 | }
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| 278 | else
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| 279 | {
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| 280 | mOptions.terrainMaterial->getTechnique(0)->getPass(0)->removeAllTextureUnitStates();
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| 281 | }
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| 282 |
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| 283 | Pass* pass = mOptions.terrainMaterial->getTechnique(0)->getPass(0);
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| 284 |
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| 285 | if ( mWorldTextureName != "" )
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| 286 | {
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| 287 | pass->createTextureUnitState( mWorldTextureName, 0 );
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| 288 | }
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| 289 | if ( mDetailTextureName != "" )
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| 290 | {
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| 291 | pass->createTextureUnitState( mDetailTextureName, 1 );
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| 292 | }
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| 293 |
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| 294 | mOptions.terrainMaterial -> setLightingEnabled( mOptions.lit );
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| 295 |
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| 296 | if (mOptions.lodMorph &&
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| 297 | mDestRenderSystem->getCapabilities()->hasCapability(RSC_VERTEX_PROGRAM) &&
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| 298 | GpuProgramManager::getSingleton().getByName("Terrain/VertexMorph").isNull())
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| 299 | {
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| 300 | // Create & assign LOD morphing vertex program
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| 301 | String syntax;
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| 302 | if (GpuProgramManager::getSingleton().isSyntaxSupported("arbvp1"))
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| 303 | {
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| 304 | syntax = "arbvp1";
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| 305 | }
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| 306 | else
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| 307 | {
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| 308 | syntax = "vs_1_1";
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| 309 | }
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| 310 |
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| 311 | // Get source, and take into account current fog mode
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| 312 | FogMode fm = getFogMode();
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| 313 | const String& source = TerrainVertexProgram::getProgramSource(
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| 314 | fm, syntax);
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| 315 |
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| 316 | GpuProgramPtr prog = GpuProgramManager::getSingleton().createProgramFromString(
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| 317 | "Terrain/VertexMorph", ResourceGroupManager::getSingleton().getWorldResourceGroupName(),
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| 318 | source, GPT_VERTEX_PROGRAM, syntax);
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| 319 |
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| 320 | // Attach
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| 321 | pass->setVertexProgram("Terrain/VertexMorph");
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| 322 |
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| 323 | // Get params
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| 324 | GpuProgramParametersSharedPtr params = pass->getVertexProgramParameters();
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| 325 |
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| 326 | // worldviewproj
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| 327 | params->setAutoConstant(0, GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
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| 328 | // morph factor
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| 329 | params->setAutoConstant(4, GpuProgramParameters::ACT_CUSTOM, MORPH_CUSTOM_PARAM_ID);
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| 330 | // fog exp density(if relevant)
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| 331 | if (fm == FOG_EXP || fm == FOG_EXP2)
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| 332 | {
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| 333 | params->setConstant(5, Vector3(getFogDensity(), 0, 0));
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| 334 | // Override scene fog since otherwise it's applied twice
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| 335 | // Set to linear and we derive [0,1] fog value in the shader
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| 336 | pass->setFog(true, FOG_LINEAR, getFogColour(), 0, 1, 0);
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| 337 | }
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| 338 |
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| 339 | // Also set shadow receiver program
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| 340 | const String& source2 = TerrainVertexProgram::getProgramSource(
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| 341 | fm, syntax, true);
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| 342 |
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| 343 | prog = GpuProgramManager::getSingleton().createProgramFromString(
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| 344 | "Terrain/VertexMorphShadowReceive",
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| 345 | ResourceGroupManager::getSingleton().getWorldResourceGroupName(),
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| 346 | source2, GPT_VERTEX_PROGRAM, syntax);
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| 347 | pass->setShadowReceiverVertexProgram("Terrain/VertexMorphShadowReceive");
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| 348 | params = pass->getShadowReceiverVertexProgramParameters();
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| 349 | // worldviewproj
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| 350 | params->setAutoConstant(0, GpuProgramParameters::ACT_WORLDVIEWPROJ_MATRIX);
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| 351 | // world
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| 352 | params->setAutoConstant(4, GpuProgramParameters::ACT_WORLD_MATRIX);
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| 353 | // texture view / proj
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| 354 | params->setAutoConstant(8, GpuProgramParameters::ACT_TEXTURE_VIEWPROJ_MATRIX);
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| 355 | // morph factor
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| 356 | params->setAutoConstant(12, GpuProgramParameters::ACT_CUSTOM, MORPH_CUSTOM_PARAM_ID);
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| 357 |
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| 358 |
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| 359 | // Set param index
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| 360 | mLodMorphParamName = "";
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| 361 | mLodMorphParamIndex = 4;
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| 362 | }
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| 363 |
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| 364 | mOptions.terrainMaterial->load();
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| 365 |
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| 366 | }
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| 367 | else
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| 368 | {
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| 369 | // Custom material
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| 370 | mOptions.terrainMaterial =
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| 371 | MaterialManager::getSingleton().getByName(mCustomMaterialName);
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| 372 | mOptions.terrainMaterial->load();
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| 373 |
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| 374 | }
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| 375 |
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| 376 | // now set up the linkage between vertex program and LOD morph param
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| 377 | if (mOptions.lodMorph)
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| 378 | {
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| 379 | Technique* t = mOptions.terrainMaterial->getBestTechnique();
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| 380 | for (ushort i = 0; i < t->getNumPasses(); ++i)
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| 381 | {
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| 382 | Pass* p = t->getPass(i);
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| 383 | if (p->hasVertexProgram())
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| 384 | {
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| 385 | // we have to assume vertex program includes LOD morph capability
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| 386 | GpuProgramParametersSharedPtr params =
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| 387 | p->getVertexProgramParameters();
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| 388 | // Check to see if custom param is already there
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| 389 | GpuProgramParameters::AutoConstantIterator aci = params->getAutoConstantIterator();
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| 390 | bool found = false;
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| 391 | while (aci.hasMoreElements())
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| 392 | {
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| 393 | const GpuProgramParameters::AutoConstantEntry& ace = aci.getNext();
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| 394 | if (ace.paramType == GpuProgramParameters::ACT_CUSTOM &&
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| 395 | ace.data == MORPH_CUSTOM_PARAM_ID)
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| 396 | {
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| 397 | found = true;
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| 398 | }
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| 399 | }
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| 400 | if (!found)
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| 401 | {
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| 402 | if(mLodMorphParamName != "")
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| 403 | {
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| 404 | params->setNamedAutoConstant(mLodMorphParamName,
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| 405 | GpuProgramParameters::ACT_CUSTOM, MORPH_CUSTOM_PARAM_ID);
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| 406 | }
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| 407 | else
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| 408 | {
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| 409 | params->setAutoConstant(mLodMorphParamIndex,
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| 410 | GpuProgramParameters::ACT_CUSTOM, MORPH_CUSTOM_PARAM_ID);
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| 411 | }
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| 412 | }
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| 413 |
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| 414 | }
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| 415 | }
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| 416 | }
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| 417 |
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| 418 | }
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| 419 | //-------------------------------------------------------------------------
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| 420 | void TerrainSceneManager::setupTerrainPages(void)
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| 421 | {
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| 422 |
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| 423 | //create a root terrain node.
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| 424 | if (!mTerrainRoot)
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| 425 | mTerrainRoot = getRootSceneNode() -> createChildSceneNode( "Terrain" );
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| 426 |
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| 427 | //setup the page array.
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| 428 | unsigned short pageSlots = 1 + (mBufferedPageMargin * 2);
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| 429 | unsigned short i, j;
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| 430 | for (i = 0; i < pageSlots; ++i)
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| 431 | {
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| 432 | mTerrainPages.push_back(TerrainPageRow());
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| 433 | for (j = 0; j < pageSlots; ++j)
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| 434 | {
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| 435 | mTerrainPages[i].push_back(0);
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| 436 | }
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| 437 | }
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| 438 |
|
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| 439 | // If we're not paging, load immediate for convenience
|
---|
| 440 | if ( mActivePageSource && !mPagingEnabled )
|
---|
| 441 | mActivePageSource->requestPage(0,0);
|
---|
| 442 |
|
---|
| 443 |
|
---|
| 444 | }
|
---|
| 445 | //-------------------------------------------------------------------------
|
---|
| 446 | void TerrainSceneManager::setWorldGeometry( const String& filename )
|
---|
| 447 | {
|
---|
| 448 | // Clear out any existing world resources (if not default)
|
---|
| 449 | if (ResourceGroupManager::getSingleton().getWorldResourceGroupName() !=
|
---|
| 450 | ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME)
|
---|
| 451 | {
|
---|
| 452 | ResourceGroupManager::getSingleton().clearResourceGroup(
|
---|
| 453 | ResourceGroupManager::getSingleton().getWorldResourceGroupName());
|
---|
| 454 | }
|
---|
| 455 | mTerrainPages.clear();
|
---|
| 456 | // Load the configuration
|
---|
| 457 | loadConfig(filename);
|
---|
| 458 |
|
---|
| 459 | // Resize the octree, allow for 1 page for now
|
---|
| 460 | float max_x = mOptions.scale.x * mOptions.pageSize;
|
---|
| 461 | float max_y = mOptions.scale.y;
|
---|
| 462 | float max_z = mOptions.scale.z * mOptions.pageSize;
|
---|
| 463 | resize( AxisAlignedBox( 0, 0, 0, max_x, max_y, max_z ) );
|
---|
| 464 |
|
---|
| 465 | setupTerrainMaterial();
|
---|
| 466 |
|
---|
| 467 | setupTerrainPages();
|
---|
| 468 |
|
---|
| 469 | }
|
---|
| 470 | //-------------------------------------------------------------------------
|
---|
| 471 | void TerrainSceneManager::clearScene(void)
|
---|
| 472 | {
|
---|
| 473 | OctreeSceneManager::clearScene();
|
---|
| 474 | mTerrainPages.clear();
|
---|
| 475 | // Octree has destroyed our root
|
---|
| 476 | mTerrainRoot = 0;
|
---|
| 477 | }
|
---|
| 478 | //-------------------------------------------------------------------------
|
---|
| 479 | void TerrainSceneManager::_renderScene(Camera* cam, Viewport *vp, bool includeOverlays)
|
---|
| 480 | {
|
---|
| 481 | // For now, no paging and expect immediate response
|
---|
| 482 | if (!mTerrainPages.empty() && mTerrainPages[0][0] == 0)
|
---|
| 483 | {
|
---|
| 484 | mActivePageSource->requestPage(0, 0);
|
---|
| 485 | }
|
---|
| 486 | SceneManager::_renderScene(cam, vp, includeOverlays);
|
---|
| 487 |
|
---|
| 488 | }
|
---|
| 489 | //-------------------------------------------------------------------------
|
---|
| 490 | void TerrainSceneManager::attachPage(ushort pageX, ushort pageZ, TerrainPage* page)
|
---|
| 491 | {
|
---|
| 492 | assert(pageX == 0 && pageZ == 0 && "Multiple pages not yet supported");
|
---|
| 493 |
|
---|
| 494 | assert(mTerrainPages[pageX][pageZ] == 0 && "Page at that index not yet expired!");
|
---|
| 495 | // Insert page into list
|
---|
| 496 | mTerrainPages[pageX][pageZ] = page;
|
---|
| 497 | // Attach page to terrain root
|
---|
| 498 | mTerrainRoot->addChild(page->pageSceneNode);
|
---|
| 499 |
|
---|
| 500 | }
|
---|
| 501 | //-------------------------------------------------------------------------
|
---|
| 502 | void TerrainSceneManager::_renderVisibleObjects( void )
|
---|
| 503 | {
|
---|
| 504 |
|
---|
| 505 | mDestRenderSystem -> setLightingEnabled( false );
|
---|
| 506 |
|
---|
| 507 | OctreeSceneManager::_renderVisibleObjects();
|
---|
| 508 |
|
---|
| 509 | }
|
---|
| 510 | //-------------------------------------------------------------------------
|
---|
| 511 | float TerrainSceneManager::getHeightAt( float x, float z )
|
---|
| 512 | {
|
---|
| 513 |
|
---|
| 514 |
|
---|
| 515 | Vector3 pt( x, 0, z );
|
---|
| 516 |
|
---|
| 517 | TerrainRenderable * t = getTerrainTile( pt );
|
---|
| 518 |
|
---|
| 519 | if ( t == 0 )
|
---|
| 520 | {
|
---|
| 521 | // printf( "No tile found for point\n" );
|
---|
| 522 | return -1;
|
---|
| 523 | }
|
---|
| 524 |
|
---|
| 525 | float h = t -> getHeightAt( x, z );
|
---|
| 526 |
|
---|
| 527 | // printf( "Height is %f\n", h );
|
---|
| 528 | return h;
|
---|
| 529 |
|
---|
| 530 | }
|
---|
| 531 | //-------------------------------------------------------------------------
|
---|
| 532 | TerrainPage* TerrainSceneManager::getTerrainPage( const Vector3 & pt )
|
---|
| 533 | {
|
---|
| 534 | if (mPagingEnabled)
|
---|
| 535 | {
|
---|
| 536 | // TODO
|
---|
| 537 | return 0;
|
---|
| 538 | }
|
---|
| 539 | else
|
---|
| 540 | {
|
---|
| 541 | // Single page
|
---|
| 542 | if (mTerrainPages.empty() || mTerrainPages[0].empty())
|
---|
| 543 | return 0;
|
---|
| 544 | return mTerrainPages[0][0];
|
---|
| 545 | }
|
---|
| 546 | }
|
---|
| 547 | //-------------------------------------------------------------------------
|
---|
| 548 | TerrainRenderable * TerrainSceneManager::getTerrainTile( const Vector3 & pt )
|
---|
| 549 | {
|
---|
| 550 | TerrainPage* tp = getTerrainPage(pt);
|
---|
| 551 | if (!tp)
|
---|
| 552 | return NULL;
|
---|
| 553 | else
|
---|
| 554 | return tp->getTerrainTile(pt);
|
---|
| 555 | }
|
---|
| 556 | //-------------------------------------------------------------------------
|
---|
| 557 | bool TerrainSceneManager::intersectSegment( const Vector3 & start,
|
---|
| 558 | const Vector3 & end, Vector3 * result )
|
---|
| 559 | {
|
---|
| 560 | TerrainRenderable * t = getTerrainTile( start );
|
---|
| 561 |
|
---|
| 562 | if ( t == 0 )
|
---|
| 563 | {
|
---|
| 564 | *result = Vector3( -1, -1, -1 );
|
---|
| 565 | return false;
|
---|
| 566 | }
|
---|
| 567 |
|
---|
| 568 | return t -> intersectSegment( start, end, result );
|
---|
| 569 | }
|
---|
| 570 | //-------------------------------------------------------------------------
|
---|
| 571 | void TerrainSceneManager::setUseTriStrips(bool useStrips)
|
---|
| 572 | {
|
---|
| 573 | mOptions.useTriStrips = useStrips;
|
---|
| 574 | }
|
---|
| 575 | //-------------------------------------------------------------------------
|
---|
| 576 | void TerrainSceneManager::setUseLODMorph(bool morph)
|
---|
| 577 | {
|
---|
| 578 | // Set true only if vertex programs are supported
|
---|
| 579 | mOptions.lodMorph = morph &&
|
---|
| 580 | mDestRenderSystem->getCapabilities()->hasCapability(RSC_VERTEX_PROGRAM);
|
---|
| 581 | }
|
---|
| 582 | //-------------------------------------------------------------------------
|
---|
| 583 | void TerrainSceneManager::setUseVertexNormals(bool useNormals)
|
---|
| 584 | {
|
---|
| 585 | mOptions.lit = useNormals;
|
---|
| 586 | }
|
---|
| 587 | //-------------------------------------------------------------------------
|
---|
| 588 | void TerrainSceneManager::setUseVertexColours(bool useColours)
|
---|
| 589 | {
|
---|
| 590 | mOptions.coloured = useColours;
|
---|
| 591 | }
|
---|
| 592 | //-------------------------------------------------------------------------
|
---|
| 593 | void TerrainSceneManager::setWorldTexture(const String& textureName)
|
---|
| 594 | {
|
---|
| 595 | mWorldTextureName = textureName;
|
---|
| 596 | }
|
---|
| 597 | //-------------------------------------------------------------------------
|
---|
| 598 | void TerrainSceneManager::setDetailTexture(const String& textureName)
|
---|
| 599 | {
|
---|
| 600 | mDetailTextureName = textureName;
|
---|
| 601 |
|
---|
| 602 | }
|
---|
| 603 | //-------------------------------------------------------------------------
|
---|
| 604 | void TerrainSceneManager::setDetailTextureRepeat(int repeat)
|
---|
| 605 | {
|
---|
| 606 | mOptions.detailTile = repeat;
|
---|
| 607 | }
|
---|
| 608 | //-------------------------------------------------------------------------
|
---|
| 609 | void TerrainSceneManager::setTileSize(int size)
|
---|
| 610 | {
|
---|
| 611 | mOptions.tileSize = size;
|
---|
| 612 | }
|
---|
| 613 | //-------------------------------------------------------------------------
|
---|
| 614 | void TerrainSceneManager::setPageSize(int size)
|
---|
| 615 | {
|
---|
| 616 | mOptions.pageSize = size;
|
---|
| 617 | }
|
---|
| 618 | //-------------------------------------------------------------------------
|
---|
| 619 | void TerrainSceneManager::setMaxPixelError(int pixelError)
|
---|
| 620 | {
|
---|
| 621 | mOptions.maxPixelError = pixelError;
|
---|
| 622 | }
|
---|
| 623 | //-------------------------------------------------------------------------
|
---|
| 624 | void TerrainSceneManager::setScale(const Vector3& scale)
|
---|
| 625 | {
|
---|
| 626 | mOptions.scale = scale;
|
---|
| 627 | }
|
---|
| 628 | //-------------------------------------------------------------------------
|
---|
| 629 | void TerrainSceneManager::setMaxGeoMipMapLevel(int maxMip)
|
---|
| 630 | {
|
---|
| 631 | mOptions.maxGeoMipMapLevel = maxMip;
|
---|
| 632 | }
|
---|
| 633 | //-------------------------------------------------------------------------
|
---|
| 634 | void TerrainSceneManager::setCustomMaterial(const String& materialName)
|
---|
| 635 | {
|
---|
| 636 | mCustomMaterialName = materialName;
|
---|
| 637 | if (materialName != "")
|
---|
| 638 | mUseCustomMaterial = true;
|
---|
| 639 | else
|
---|
| 640 | mUseCustomMaterial = false;
|
---|
| 641 | }
|
---|
| 642 | //-------------------------------------------------------------------------
|
---|
| 643 | void TerrainSceneManager::setCustomMaterialMorphFactorParam(const String& paramName)
|
---|
| 644 | {
|
---|
| 645 | mUseNamedParameterLodMorph = true;
|
---|
| 646 | mLodMorphParamName = paramName;
|
---|
| 647 |
|
---|
| 648 | }
|
---|
| 649 | //-------------------------------------------------------------------------
|
---|
| 650 | void TerrainSceneManager::setCustomMaterialMorphFactorParam(size_t paramIndex)
|
---|
| 651 | {
|
---|
| 652 | mUseNamedParameterLodMorph = false;
|
---|
| 653 | mLodMorphParamIndex = paramIndex;
|
---|
| 654 | }
|
---|
| 655 | //-------------------------------------------------------------------------
|
---|
| 656 | void TerrainSceneManager::setLODMorphStart(Real morphStart)
|
---|
| 657 | {
|
---|
| 658 | mOptions.lodMorphStart = morphStart;
|
---|
| 659 | }
|
---|
| 660 | //-------------------------------------------------------------------------
|
---|
| 661 | Camera* TerrainSceneManager::createCamera( const String &name )
|
---|
| 662 | {
|
---|
| 663 | Camera* c = OctreeSceneManager::createCamera(name);
|
---|
| 664 |
|
---|
| 665 | // Set primary camera, if none
|
---|
| 666 | if (!mOptions.primaryCamera)
|
---|
| 667 | setPrimaryCamera(c);
|
---|
| 668 |
|
---|
| 669 | return c;
|
---|
| 670 |
|
---|
| 671 | }
|
---|
| 672 | //-------------------------------------------------------------------------
|
---|
| 673 | void TerrainSceneManager::setPrimaryCamera(const Camera* cam)
|
---|
| 674 | {
|
---|
| 675 | mOptions.primaryCamera = cam;
|
---|
| 676 | }
|
---|
| 677 | //-------------------------------------------------------------------------
|
---|
| 678 | bool TerrainSceneManager::setOption( const String & name, const void *value )
|
---|
| 679 | {
|
---|
| 680 | if (name == "PageSize")
|
---|
| 681 | {
|
---|
| 682 | setPageSize(*static_cast<const int*>(value));
|
---|
| 683 | return true;
|
---|
| 684 | }
|
---|
| 685 | else if (name == "TileSize")
|
---|
| 686 | {
|
---|
| 687 | setTileSize(*static_cast<const int*>(value));
|
---|
| 688 | return true;
|
---|
| 689 | }
|
---|
| 690 | else if (name == "PrimaryCamera")
|
---|
| 691 | {
|
---|
| 692 | setPrimaryCamera(static_cast<const Camera*>(value));
|
---|
| 693 | return true;
|
---|
| 694 | }
|
---|
| 695 | else if (name == "MaxMipMapLevel")
|
---|
| 696 | {
|
---|
| 697 | setMaxGeoMipMapLevel(*static_cast<const int*>(value));
|
---|
| 698 | return true;
|
---|
| 699 | }
|
---|
| 700 | else if (name == "Scale")
|
---|
| 701 | {
|
---|
| 702 | setScale(*static_cast<const Vector3*>(value));
|
---|
| 703 | return true;
|
---|
| 704 | }
|
---|
| 705 | else if (name == "MaxPixelError")
|
---|
| 706 | {
|
---|
| 707 | setMaxPixelError(*static_cast<const int*>(value));
|
---|
| 708 | return true;
|
---|
| 709 | }
|
---|
| 710 | else if (name == "UseTriStrips")
|
---|
| 711 | {
|
---|
| 712 | setUseTriStrips(*static_cast<const bool*>(value));
|
---|
| 713 | return true;
|
---|
| 714 | }
|
---|
| 715 | else if (name == "VertexProgramMorph")
|
---|
| 716 | {
|
---|
| 717 | setUseLODMorph(*static_cast<const bool*>(value));
|
---|
| 718 | return true;
|
---|
| 719 | }
|
---|
| 720 | else if (name == "DetailTile")
|
---|
| 721 | {
|
---|
| 722 | setDetailTextureRepeat(*static_cast<const int*>(value));
|
---|
| 723 | return true;
|
---|
| 724 | }
|
---|
| 725 | else if (name == "LodMorphStart")
|
---|
| 726 | {
|
---|
| 727 | setLODMorphStart(*static_cast<const Real*>(value));
|
---|
| 728 | return true;
|
---|
| 729 | }
|
---|
| 730 | else if (name == "VertexNormals")
|
---|
| 731 | {
|
---|
| 732 | setUseVertexNormals(*static_cast<const bool*>(value));
|
---|
| 733 | return true;
|
---|
| 734 | }
|
---|
| 735 | else if (name == "VertexColours")
|
---|
| 736 | {
|
---|
| 737 | setUseVertexColours(*static_cast<const bool*>(value));
|
---|
| 738 | return true;
|
---|
| 739 | }
|
---|
| 740 | else if (name == "MorphLODFactorParamName")
|
---|
| 741 | {
|
---|
| 742 | setCustomMaterialMorphFactorParam(*static_cast<const String*>(value));
|
---|
| 743 | return true;
|
---|
| 744 | }
|
---|
| 745 | else if (name == "MorphLODFactorParamIndex")
|
---|
| 746 | {
|
---|
| 747 | setCustomMaterialMorphFactorParam(*static_cast<const size_t*>(value));
|
---|
| 748 | return true;
|
---|
| 749 | }
|
---|
| 750 | else if (name == "CustomMaterialName")
|
---|
| 751 | {
|
---|
| 752 | setCustomMaterial(*static_cast<const String*>(value));
|
---|
| 753 | return true;
|
---|
| 754 | }
|
---|
| 755 | else if (name == "WorldTexture")
|
---|
| 756 | {
|
---|
| 757 | setWorldTexture(*static_cast<const String*>(value));
|
---|
| 758 | return true;
|
---|
| 759 | }
|
---|
| 760 | else if (name == "DetailTexture")
|
---|
| 761 | {
|
---|
| 762 | setDetailTexture(*static_cast<const String*>(value));
|
---|
| 763 | return true;
|
---|
| 764 | }
|
---|
| 765 | else
|
---|
| 766 | {
|
---|
| 767 | return OctreeSceneManager::setOption(name, value);
|
---|
| 768 | }
|
---|
| 769 |
|
---|
| 770 | return false;
|
---|
| 771 | }
|
---|
| 772 | //-------------------------------------------------------------------------
|
---|
| 773 | void TerrainSceneManager::registerPageSource(const String& typeName,
|
---|
| 774 | TerrainPageSource* source)
|
---|
| 775 | {
|
---|
| 776 | std::pair<PageSourceMap::iterator, bool> retPair =
|
---|
| 777 | mPageSources.insert(
|
---|
| 778 | PageSourceMap::value_type(typeName, source));
|
---|
| 779 | if (!retPair.second)
|
---|
| 780 | {
|
---|
| 781 | OGRE_EXCEPT(Exception::ERR_DUPLICATE_ITEM,
|
---|
| 782 | "The page source " + typeName + " is already registered",
|
---|
| 783 | "TerrainSceneManager::registerPageSource");
|
---|
| 784 | }
|
---|
| 785 | LogManager::getSingleton().logMessage(
|
---|
| 786 | "TerrainSceneManager: Registered a new PageSource for "
|
---|
| 787 | "type " + typeName);
|
---|
| 788 | }
|
---|
| 789 | //-------------------------------------------------------------------------
|
---|
| 790 | void TerrainSceneManager::selectPageSource(const String& typeName,
|
---|
| 791 | TerrainPageSourceOptionList& optionList)
|
---|
| 792 | {
|
---|
| 793 | PageSourceMap::iterator i = mPageSources.find(typeName);
|
---|
| 794 | if (i == mPageSources.end())
|
---|
| 795 | {
|
---|
| 796 | OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND,
|
---|
| 797 | "Cannot locate a TerrainPageSource for type " + typeName,
|
---|
| 798 | "TerrainSceneManager::selectPageSource");
|
---|
| 799 | }
|
---|
| 800 |
|
---|
| 801 | if (mActivePageSource)
|
---|
| 802 | {
|
---|
| 803 | mActivePageSource->shutdown();
|
---|
| 804 | }
|
---|
| 805 | mActivePageSource = i->second;
|
---|
| 806 | mActivePageSource->initialise(this, mOptions.tileSize, mOptions.pageSize,
|
---|
| 807 | mPagingEnabled, optionList);
|
---|
| 808 |
|
---|
| 809 | LogManager::getSingleton().logMessage(
|
---|
| 810 | "TerrainSceneManager: Activated PageSource " + typeName);
|
---|
| 811 |
|
---|
| 812 | }
|
---|
| 813 | //-------------------------------------------------------------------------
|
---|
| 814 | int TerrainSceneManager::getDetailTextureRepeat(void)
|
---|
| 815 | {
|
---|
| 816 | return mOptions.detailTile;
|
---|
| 817 | }
|
---|
| 818 | //-------------------------------------------------------------------------
|
---|
| 819 | int TerrainSceneManager::getTileSize(void)
|
---|
| 820 | {
|
---|
| 821 | return mOptions.tileSize;
|
---|
| 822 | }
|
---|
| 823 | //-------------------------------------------------------------------------
|
---|
| 824 | int TerrainSceneManager::getPageSize(void)
|
---|
| 825 | {
|
---|
| 826 | return mOptions.pageSize;
|
---|
| 827 | }
|
---|
| 828 | //-------------------------------------------------------------------------
|
---|
| 829 | int TerrainSceneManager::getMaxPixelError(void)
|
---|
| 830 | {
|
---|
| 831 | return mOptions.maxPixelError;
|
---|
| 832 | }
|
---|
| 833 | //-------------------------------------------------------------------------
|
---|
| 834 | const Vector3& TerrainSceneManager::getScale(void)
|
---|
| 835 | {
|
---|
| 836 | return mOptions.scale;
|
---|
| 837 | }
|
---|
| 838 | //-------------------------------------------------------------------------
|
---|
| 839 | int TerrainSceneManager::getMaxGeoMipMapLevel(void)
|
---|
| 840 | {
|
---|
| 841 | return mOptions.maxGeoMipMapLevel;
|
---|
| 842 | }
|
---|
| 843 | //-------------------------------------------------------------------------
|
---|
| 844 | //-------------------------------------------------------------------------
|
---|
| 845 | RaySceneQuery*
|
---|
| 846 | TerrainSceneManager::createRayQuery(const Ray& ray, unsigned long mask)
|
---|
| 847 | {
|
---|
| 848 | TerrainRaySceneQuery *trsq = new TerrainRaySceneQuery(this);
|
---|
| 849 | trsq->setRay(ray);
|
---|
| 850 | trsq->setQueryMask(mask);
|
---|
| 851 | return trsq;
|
---|
| 852 | }
|
---|
| 853 | //-------------------------------------------------------------------------
|
---|
| 854 | TerrainRaySceneQuery::TerrainRaySceneQuery(SceneManager* creator)
|
---|
| 855 | :OctreeRaySceneQuery(creator)
|
---|
| 856 | {
|
---|
| 857 | mSupportedWorldFragments.insert(SceneQuery::WFT_SINGLE_INTERSECTION);
|
---|
| 858 | }
|
---|
| 859 | //-------------------------------------------------------------------------
|
---|
| 860 | TerrainRaySceneQuery::~TerrainRaySceneQuery()
|
---|
| 861 | {
|
---|
| 862 | }
|
---|
| 863 | //-------------------------------------------------------------------------
|
---|
| 864 | void TerrainRaySceneQuery::execute(RaySceneQueryListener* listener)
|
---|
| 865 | {
|
---|
| 866 | static WorldFragment worldFrag;
|
---|
| 867 | worldFrag.fragmentType = SceneQuery::WFT_SINGLE_INTERSECTION;
|
---|
| 868 |
|
---|
| 869 | const Vector3& dir = mRay.getDirection();
|
---|
| 870 | const Vector3& origin = mRay.getOrigin();
|
---|
| 871 | // Straight up / down?
|
---|
| 872 | if (dir == Vector3::UNIT_Y || dir == Vector3::NEGATIVE_UNIT_Y)
|
---|
| 873 | {
|
---|
| 874 | Real height = static_cast<TerrainSceneManager*>(mParentSceneMgr)->getHeightAt(
|
---|
| 875 | origin.x, origin.z);
|
---|
| 876 | if (height != -1 && (height <= origin.y && dir.y < 0) || (height >= origin.y && dir.y > 0))
|
---|
| 877 | {
|
---|
| 878 | worldFrag.singleIntersection.x = origin.x;
|
---|
| 879 | worldFrag.singleIntersection.z = origin.z;
|
---|
| 880 | worldFrag.singleIntersection.y = height;
|
---|
| 881 | if (!listener->queryResult(&worldFrag,
|
---|
| 882 | (worldFrag.singleIntersection - origin).length()))
|
---|
| 883 | return;
|
---|
| 884 | }
|
---|
| 885 | }
|
---|
| 886 | else
|
---|
| 887 | {
|
---|
| 888 | // Perform arbitrary query
|
---|
| 889 | if (static_cast<TerrainSceneManager*>(mParentSceneMgr)->intersectSegment(
|
---|
| 890 | origin, origin + (dir * 100000), &worldFrag.singleIntersection))
|
---|
| 891 | {
|
---|
| 892 | if (!listener->queryResult(&worldFrag,
|
---|
| 893 | (worldFrag.singleIntersection - origin).length()))
|
---|
| 894 | return;
|
---|
| 895 | }
|
---|
| 896 |
|
---|
| 897 |
|
---|
| 898 | }
|
---|
| 899 | OctreeRaySceneQuery::execute(listener);
|
---|
| 900 |
|
---|
| 901 | }
|
---|
| 902 | //-------------------------------------------------------------------------
|
---|
| 903 | MaterialPtr& TerrainSceneManager::getTerrainMaterial(void)
|
---|
| 904 | {
|
---|
| 905 | return mOptions.terrainMaterial;
|
---|
| 906 | }
|
---|
| 907 | //-------------------------------------------------------------------------
|
---|
| 908 | TerrainSceneManager::PageSourceIterator TerrainSceneManager::getPageSourceIterator(void)
|
---|
| 909 | {
|
---|
| 910 | return PageSourceIterator(mPageSources.begin(), mPageSources.end());
|
---|
| 911 | }
|
---|
| 912 | //-------------------------------------------------------------------------
|
---|
| 913 | void TerrainSceneManager::setWorldGeometryRenderQueue(RenderQueueGroupID qid)
|
---|
| 914 | {
|
---|
| 915 | for (TerrainPage2D::iterator pi = mTerrainPages.begin();
|
---|
| 916 | pi != mTerrainPages.end(); ++pi)
|
---|
| 917 | {
|
---|
| 918 | TerrainPageRow& row = *pi;
|
---|
| 919 | for (TerrainPageRow::iterator ri = row.begin(); ri != row.end(); ++ri)
|
---|
| 920 | {
|
---|
| 921 | TerrainPage* page = *ri;
|
---|
| 922 | if (page)
|
---|
| 923 | {
|
---|
| 924 | page->setRenderQueue(qid);
|
---|
| 925 | }
|
---|
| 926 | }
|
---|
| 927 | }
|
---|
| 928 |
|
---|
| 929 | }
|
---|
| 930 |
|
---|
| 931 |
|
---|
| 932 | } //namespace
|
---|