[21] | 1 | /** |
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| 2 | * This source file is part of OgreColladaPlugin |
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| 3 | * an addon for OGRE (Object-oriented Graphics Rendering Engine) |
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| 4 | * For the latest info, see http://www.ogre3d.org/ |
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| 5 | * |
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| 6 | * This program is free software; you can redistribute it and/or modify it under |
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| 7 | * the terms of the GNU Lesser General Public License as published by the Free Software |
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| 8 | * Foundation; either version 2 of the License, or (at your option) any later |
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| 9 | * version. |
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| 10 | |
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| 11 | * This program is distributed in the hope that it will be useful, but WITHOUT |
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| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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| 13 | * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. |
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| 14 | |
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| 15 | * You should have received a copy of the GNU Lesser General Public License along with |
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| 16 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
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| 17 | * Place - Suite 330, Boston, MA 02111-1307, USA, or go to |
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| 18 | * http://www.gnu.org/copyleft/lesser.txt. |
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| 19 | * |
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| 20 | * @author Philipp Hartl |
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| 21 | * @see README |
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| 22 | */ |
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| 23 | |
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| 24 | #include "OgreColladaCamera.h" |
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| 25 | #include "OgreColladaDocument.h" |
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| 26 | #include "OgreColladaSyntax.h" |
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| 27 | #include "OgreColladaUtils.h" |
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| 28 | |
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| 29 | #include "OgreSceneManager.h" |
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| 30 | #include "OgreCamera.h" |
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| 31 | #include "OgreStringConverter.h" |
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| 32 | |
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| 33 | namespace Ogre |
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| 34 | { |
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| 35 | //------------------------------------------------------------------------- |
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| 36 | ColladaCamera::ColladaCamera(ColladaDocument *d, xmlNode *n) : ColladaEntity(d, n) |
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| 37 | { |
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| 38 | mType = UNKNOWN; |
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| 39 | |
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| 40 | mXFov = 0; |
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| 41 | mYFov = 0; |
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| 42 | mZNear = 0; |
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| 43 | mZFar = 0; |
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| 44 | |
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| 45 | mBottom = 0; |
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| 46 | mLeft = 0; |
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| 47 | mRight = 0; |
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| 48 | mTop = 0; |
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| 49 | } |
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| 50 | |
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| 51 | //------------------------------------------------------------------------- |
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| 52 | ColladaCamera::~ColladaCamera(void) { } |
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| 53 | |
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| 54 | //------------------------------------------------------------------------- |
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| 55 | MovableObject *ColladaCamera::getOgreInstance(void) const |
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| 56 | { |
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| 57 | // Camera *camera = new Camera(mId, mDoc->getSceneManager()); |
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| 58 | Camera *camera = mDoc->getSceneManager()->createCamera(mId); |
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| 59 | |
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| 60 | // standard projection type should be perspective |
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| 61 | |
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| 62 | if (mType == ORTHOGRAPHIC) |
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| 63 | { |
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| 64 | camera->setProjectionType(PT_ORTHOGRAPHIC); |
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| 65 | // map from Collada [-1,1] to Ogre [0,1] |
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| 66 | // camera->setWindow(mLeft, mTop, mRight, mBottom); |
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| 67 | } |
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| 68 | else if (mType == PERSPECTIVE) |
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| 69 | { |
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| 70 | camera->setProjectionType(PT_PERSPECTIVE); |
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| 71 | |
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| 72 | float fov = mYFov; |
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| 73 | if (fov == 0 && mXFov > 0) fov = mXFov / camera->getAspectRatio(); |
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| 74 | |
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| 75 | camera->setFOVy(Radian(Math::DegreesToRadians(fov))); |
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| 76 | camera->setNearClipDistance(mZNear); |
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| 77 | camera->setFarClipDistance(mZFar); |
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| 78 | } |
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| 79 | Quaternion rot = mDoc->getUpRotation(); |
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| 80 | camera->rotate(rot); |
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| 81 | return camera; |
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| 82 | } |
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| 83 | |
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| 84 | //------------------------------------------------------------------------- |
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| 85 | bool ColladaCamera::doImport(void) |
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| 86 | { |
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| 87 | if (mLoaded) return mStatus; |
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| 88 | else mLoaded = true; |
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| 89 | |
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| 90 | // <technique> nodes |
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| 91 | xmlNodePtrVector techniques = ColladaUtils::getChildsByTagName(mNode, CS_ELM_TECHNIQUE); |
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| 92 | // currently we are only interested in "COMMON" profile |
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| 93 | xmlNode *technique = NULL; |
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| 94 | xmlNodePtrVector::const_iterator it; |
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| 95 | for (it = techniques.begin(); it != techniques.end(); ++it) |
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| 96 | { |
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| 97 | String profile = ColladaUtils::getProperty(*it, CS_ATR_PROFILE); |
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| 98 | if (profile == CS_VAL_TECHNIQUE_PROFILE_COMMON) |
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| 99 | { |
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| 100 | technique = *it; |
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| 101 | break; |
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| 102 | } |
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| 103 | } |
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| 104 | if (technique == NULL) return false; |
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| 105 | |
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| 106 | // one <optics> child |
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| 107 | xmlNode *optics = ColladaUtils::getChildByTagName(technique, CS_ELM_OPTICS); |
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| 108 | mStatus = importOptics(optics); |
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| 109 | |
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| 110 | // <imager> [0,*] |
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| 111 | xmlNodePtrVector imagers = ColladaUtils::getChildsByTagName(technique, CS_ELM_IMAGER); |
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| 112 | for (it = imagers.begin(); it != imagers.end() && mStatus; ++it) mStatus = importImager(*it); |
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| 113 | |
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| 114 | return mStatus; |
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| 115 | } |
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| 116 | |
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| 117 | //------------------------------------------------------------------------- |
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| 118 | bool ColladaCamera::importImager(xmlNode *node) |
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| 119 | { |
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| 120 | if (node == NULL) return false; |
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| 121 | // currently not implemented |
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| 122 | return true; |
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| 123 | } |
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| 124 | |
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| 125 | //------------------------------------------------------------------------- |
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| 126 | bool ColladaCamera::importOptics(xmlNode *node) |
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| 127 | { |
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| 128 | if (node == NULL) return false; |
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| 129 | |
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| 130 | // <program> |
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| 131 | xmlNode *program = ColladaUtils::getChildByTagName(node, CS_ELM_PROGRAM); |
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| 132 | if (program == NULL) return false; |
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| 133 | |
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| 134 | // camera type |
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| 135 | String url = ColladaUtils::getProperty(program, CS_ATR_URL); |
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| 136 | mType = UNKNOWN; |
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| 137 | if (url == CS_VAL_CAMERA_TYPE_ORTHOGRAPHIC) mType = ORTHOGRAPHIC; |
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| 138 | else if (url == CS_VAL_CAMERA_TYPE_PERSPECTIVE) mType = PERSPECTIVE; |
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| 139 | if (mType == UNKNOWN) |
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| 140 | { |
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| 141 | LogManager::getSingleton().logMessage("ColladaCamera::importOptics - <program name=" + url + "> unknown! " + mId); |
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| 142 | return false; |
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| 143 | } |
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| 144 | |
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| 145 | // <param> childs |
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| 146 | xmlNodePtrVector params = ColladaUtils::getChildsByTagName(program, CS_ELM_PARAM); |
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| 147 | for (xmlNodePtrVector::const_iterator it = params.begin(); it != params.end(); ++it) |
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| 148 | { |
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| 149 | String name = ColladaUtils::getProperty(*it, CS_ATR_NAME); |
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| 150 | String content = ColladaUtils::getContentDirect(*it); |
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| 151 | float tmp = StringConverter::parseReal(content); |
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| 152 | |
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| 153 | /** |
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| 154 | * The field of view may be specified separately for the X and Y directions. |
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| 155 | * If only one is specified, the other should be derived using the aspect ratio |
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| 156 | * of the rendering view-port (to avoid image distortion). |
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| 157 | */ |
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| 158 | |
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| 159 | if (name == CS_VAL_CAMERA_PARAM_BOTTOM) mBottom = tmp; |
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| 160 | else if (name == CS_VAL_CAMERA_PARAM_LEFT) mLeft = tmp; |
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| 161 | else if (name == CS_VAL_CAMERA_PARAM_RIGHT) mRight = tmp; |
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| 162 | else if (name == CS_VAL_CAMERA_PARAM_TOP) mTop = tmp; |
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| 163 | else if (name == CS_VAL_CAMERA_PARAM_XFOV) mXFov = tmp; |
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| 164 | else if (name == CS_VAL_CAMERA_PARAM_YFOV) mYFov = tmp; |
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| 165 | else if (name == CS_VAL_CAMERA_PARAM_ZFAR) mZFar = tmp; |
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| 166 | else if (name == CS_VAL_CAMERA_PARAM_ZNEAR) mZNear = tmp; |
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| 167 | else |
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| 168 | { |
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| 169 | LogManager::getSingleton().logMessage("ColladaCamera::importOptics - <param name=" + name + " unknown! " + mId); |
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| 170 | } |
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| 171 | } |
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| 172 | |
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| 173 | return true; |
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| 174 | } |
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| 175 | } |
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