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) 2000-2006 Torus Knot Software Ltd |
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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 | You may alternatively use this source under the terms of a specific version of |
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25 | the OGRE Unrestricted License provided you have obtained such a license from |
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26 | Torus Knot Software Ltd. |
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27 | ----------------------------------------------------------------------------- |
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28 | */ |
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29 | #include "OgreStableHeaders.h" |
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30 | #include "OgreSkeleton.h" |
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31 | #include "OgreBone.h" |
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32 | #include "OgreAnimation.h" |
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33 | #include "OgreAnimationState.h" |
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34 | #include "OgreException.h" |
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35 | #include "OgreLogManager.h" |
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36 | #include "OgreSkeletonManager.h" |
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37 | #include "OgreSkeletonSerializer.h" |
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38 | #include "OgreStringConverter.h" |
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39 | // Just for logging |
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40 | #include "OgreAnimationTrack.h" |
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41 | #include "OgreKeyFrame.h" |
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42 | |
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43 | |
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44 | namespace Ogre { |
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45 | |
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46 | //--------------------------------------------------------------------- |
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47 | Skeleton::Skeleton() |
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48 | : Resource(), |
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49 | mBlendState(ANIMBLEND_AVERAGE), |
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50 | mNextAutoHandle(0), |
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51 | mManualBonesDirty(false) |
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52 | { |
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53 | } |
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54 | //--------------------------------------------------------------------- |
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55 | Skeleton::Skeleton(ResourceManager* creator, const String& name, ResourceHandle handle, |
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56 | const String& group, bool isManual, ManualResourceLoader* loader) |
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57 | : Resource(creator, name, handle, group, isManual, loader), |
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58 | mBlendState(ANIMBLEND_AVERAGE), mNextAutoHandle(0) |
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59 | // set animation blending to weighted, not cumulative |
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60 | { |
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61 | if (createParamDictionary("Skeleton")) |
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62 | { |
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63 | // no custom params |
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64 | } |
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65 | } |
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66 | //--------------------------------------------------------------------- |
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67 | Skeleton::~Skeleton() |
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68 | { |
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69 | // have to call this here reather than in Resource destructor |
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70 | // since calling virtual methods in base destructors causes crash |
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71 | unload(); |
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72 | } |
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73 | //--------------------------------------------------------------------- |
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74 | void Skeleton::loadImpl(void) |
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75 | { |
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76 | SkeletonSerializer serializer; |
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77 | StringUtil::StrStreamType msg; |
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78 | msg << "Skeleton: Loading " << mName; |
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79 | LogManager::getSingleton().logMessage(msg.str()); |
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80 | |
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81 | DataStreamPtr stream = |
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82 | ResourceGroupManager::getSingleton().openResource( |
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83 | mName, mGroup, true, this); |
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84 | |
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85 | serializer.importSkeleton(stream, this); |
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86 | |
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87 | // Load any linked skeletons |
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88 | LinkedSkeletonAnimSourceList::iterator i; |
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89 | for (i = mLinkedSkeletonAnimSourceList.begin(); |
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90 | i != mLinkedSkeletonAnimSourceList.end(); ++i) |
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91 | { |
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92 | i->pSkeleton = SkeletonManager::getSingleton().load( |
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93 | i->skeletonName, mGroup); |
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94 | } |
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95 | |
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96 | |
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97 | } |
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98 | //--------------------------------------------------------------------- |
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99 | void Skeleton::unloadImpl(void) |
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100 | { |
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101 | // destroy bones |
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102 | BoneList::iterator i; |
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103 | for (i = mBoneList.begin(); i != mBoneList.end(); ++i) |
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104 | { |
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105 | delete *i; |
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106 | } |
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107 | mBoneList.clear(); |
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108 | mBoneListByName.clear(); |
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109 | mRootBones.clear(); |
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110 | mManualBones.clear(); |
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111 | mManualBonesDirty = false; |
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112 | |
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113 | // Destroy animations |
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114 | AnimationList::iterator ai; |
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115 | for (ai = mAnimationsList.begin(); ai != mAnimationsList.end(); ++ai) |
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116 | { |
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117 | delete ai->second; |
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118 | } |
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119 | mAnimationsList.clear(); |
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120 | |
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121 | // Remove all linked skeletons |
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122 | mLinkedSkeletonAnimSourceList.clear(); |
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123 | } |
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124 | //--------------------------------------------------------------------- |
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125 | Bone* Skeleton::createBone(void) |
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126 | { |
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127 | // use autohandle |
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128 | return createBone(mNextAutoHandle++); |
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129 | } |
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130 | //--------------------------------------------------------------------- |
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131 | Bone* Skeleton::createBone(const String& name) |
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132 | { |
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133 | return createBone(name, mNextAutoHandle++); |
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134 | } |
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135 | //--------------------------------------------------------------------- |
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136 | Bone* Skeleton::createBone(unsigned short handle) |
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137 | { |
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138 | if (handle >= OGRE_MAX_NUM_BONES) |
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139 | { |
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140 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, "Exceeded the maximum number of bones per skeleton.", |
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141 | "Skeleton::createBone"); |
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142 | } |
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143 | // Check handle not used |
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144 | if (handle < mBoneList.size() && mBoneList[handle] != NULL) |
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145 | { |
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146 | OGRE_EXCEPT( |
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147 | Exception::ERR_DUPLICATE_ITEM, |
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148 | "A bone with the handle " + StringConverter::toString(handle) + " already exists", |
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149 | "Skeleton::createBone" ); |
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150 | } |
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151 | Bone* ret = new Bone(handle, this); |
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152 | assert(mBoneListByName.find(ret->getName()) == mBoneListByName.end()); |
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153 | if (mBoneList.size() <= handle) |
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154 | { |
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155 | mBoneList.resize(handle+1); |
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156 | } |
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157 | mBoneList[handle] = ret; |
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158 | mBoneListByName[ret->getName()] = ret; |
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159 | return ret; |
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160 | |
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161 | } |
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162 | //--------------------------------------------------------------------- |
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163 | Bone* Skeleton::createBone(const String& name, unsigned short handle) |
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164 | { |
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165 | if (handle >= OGRE_MAX_NUM_BONES) |
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166 | { |
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167 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, "Exceeded the maximum number of bones per skeleton.", |
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168 | "Skeleton::createBone"); |
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169 | } |
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170 | // Check handle not used |
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171 | if (handle < mBoneList.size() && mBoneList[handle] != NULL) |
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172 | { |
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173 | OGRE_EXCEPT( |
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174 | Exception::ERR_DUPLICATE_ITEM, |
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175 | "A bone with the handle " + StringConverter::toString(handle) + " already exists", |
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176 | "Skeleton::createBone" ); |
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177 | } |
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178 | // Check name not used |
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179 | if (mBoneListByName.find(name) != mBoneListByName.end()) |
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180 | { |
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181 | OGRE_EXCEPT( |
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182 | Exception::ERR_DUPLICATE_ITEM, |
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183 | "A bone with the name " + name + " already exists", |
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184 | "Skeleton::createBone" ); |
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185 | } |
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186 | Bone* ret = new Bone(name, handle, this); |
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187 | if (mBoneList.size() <= handle) |
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188 | { |
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189 | mBoneList.resize(handle+1); |
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190 | } |
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191 | mBoneList[handle] = ret; |
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192 | mBoneListByName[name] = ret; |
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193 | return ret; |
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194 | } |
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195 | |
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196 | |
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197 | |
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198 | //--------------------------------------------------------------------- |
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199 | Bone* Skeleton::getRootBone(void) const |
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200 | { |
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201 | if (mRootBones.empty()) |
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202 | { |
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203 | deriveRootBone(); |
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204 | } |
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205 | |
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206 | return mRootBones[0]; |
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207 | } |
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208 | //--------------------------------------------------------------------- |
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209 | void Skeleton::setAnimationState(const AnimationStateSet& animSet) |
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210 | { |
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211 | /* |
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212 | Algorithm: |
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213 | 1. Reset all bone positions |
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214 | 2. Iterate per AnimationState, if enabled get Animation and call Animation::apply |
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215 | */ |
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216 | |
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217 | // Reset bones |
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218 | reset(); |
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219 | |
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220 | Real weightFactor = 1.0f; |
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221 | if (mBlendState == ANIMBLEND_AVERAGE) |
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222 | { |
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223 | // Derive total weights so we can rebalance if > 1.0f |
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224 | Real totalWeights = 0.0f; |
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225 | ConstEnabledAnimationStateIterator stateIt = |
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226 | animSet.getEnabledAnimationStateIterator(); |
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227 | while (stateIt.hasMoreElements()) |
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228 | { |
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229 | const AnimationState* animState = stateIt.getNext(); |
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230 | // Make sure we have an anim to match implementation |
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231 | const LinkedSkeletonAnimationSource* linked = 0; |
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232 | if (_getAnimationImpl(animState->getAnimationName(), &linked)) |
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233 | { |
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234 | totalWeights += animState->getWeight(); |
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235 | } |
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236 | } |
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237 | |
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238 | // Allow < 1.0f, allows fade out of all anims if required |
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239 | if (totalWeights > 1.0f) |
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240 | { |
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241 | weightFactor = 1.0f / totalWeights; |
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242 | } |
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243 | } |
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244 | |
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245 | // Per enabled animation state |
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246 | ConstEnabledAnimationStateIterator stateIt = |
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247 | animSet.getEnabledAnimationStateIterator(); |
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248 | while (stateIt.hasMoreElements()) |
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249 | { |
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250 | const AnimationState* animState = stateIt.getNext(); |
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251 | const LinkedSkeletonAnimationSource* linked = 0; |
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252 | Animation* anim = _getAnimationImpl(animState->getAnimationName(), &linked); |
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253 | // tolerate state entries for animations we're not aware of |
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254 | if (anim) |
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255 | { |
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256 | if (linked) |
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257 | { |
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258 | anim->apply(this, animState->getTimePosition(), |
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259 | animState->getWeight() * weightFactor, linked->scale); |
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260 | } |
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261 | else |
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262 | { |
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263 | anim->apply(this, animState->getTimePosition(), |
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264 | animState->getWeight() * weightFactor); |
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265 | } |
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266 | } |
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267 | } |
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268 | |
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269 | |
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270 | } |
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271 | //--------------------------------------------------------------------- |
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272 | void Skeleton::setBindingPose(void) |
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273 | { |
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274 | // Update the derived transforms |
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275 | _updateTransforms(); |
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276 | |
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277 | |
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278 | BoneList::iterator i; |
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279 | for (i = mBoneList.begin(); i != mBoneList.end(); ++i) |
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280 | { |
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281 | (*i)->setBindingPose(); |
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282 | } |
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283 | } |
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284 | //--------------------------------------------------------------------- |
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285 | void Skeleton::reset(bool resetManualBones) |
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286 | { |
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287 | BoneList::iterator i; |
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288 | for (i = mBoneList.begin(); i != mBoneList.end(); ++i) |
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289 | { |
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290 | if(!(*i)->isManuallyControlled() || resetManualBones) |
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291 | (*i)->reset(); |
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292 | } |
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293 | } |
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294 | //--------------------------------------------------------------------- |
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295 | Animation* Skeleton::createAnimation(const String& name, Real length) |
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296 | { |
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297 | // Check name not used |
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298 | if (mAnimationsList.find(name) != mAnimationsList.end()) |
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299 | { |
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300 | OGRE_EXCEPT( |
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301 | Exception::ERR_DUPLICATE_ITEM, |
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302 | "An animation with the name " + name + " already exists", |
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303 | "Skeleton::createAnimation"); |
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304 | } |
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305 | |
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306 | Animation* ret = new Animation(name, length); |
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307 | |
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308 | // Add to list |
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309 | mAnimationsList[name] = ret; |
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310 | |
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311 | return ret; |
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312 | |
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313 | } |
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314 | //--------------------------------------------------------------------- |
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315 | Animation* Skeleton::getAnimation(const String& name, |
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316 | const LinkedSkeletonAnimationSource** linker) const |
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317 | { |
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318 | Animation* ret = _getAnimationImpl(name, linker); |
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319 | if (!ret) |
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320 | { |
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321 | OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "No animation entry found named " + name, |
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322 | "Skeleton::getAnimation"); |
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323 | } |
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324 | |
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325 | return ret; |
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326 | } |
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327 | //--------------------------------------------------------------------- |
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328 | bool Skeleton::hasAnimation(const String& name) |
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329 | { |
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330 | return _getAnimationImpl(name) != 0; |
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331 | } |
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332 | //--------------------------------------------------------------------- |
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333 | Animation* Skeleton::_getAnimationImpl(const String& name, |
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334 | const LinkedSkeletonAnimationSource** linker) const |
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335 | { |
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336 | Animation* ret = 0; |
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337 | AnimationList::const_iterator i = mAnimationsList.find(name); |
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338 | |
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339 | if (i == mAnimationsList.end()) |
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340 | { |
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341 | LinkedSkeletonAnimSourceList::const_iterator i; |
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342 | for (i = mLinkedSkeletonAnimSourceList.begin(); |
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343 | i != mLinkedSkeletonAnimSourceList.end() && !ret; ++i) |
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344 | { |
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345 | if (!i->pSkeleton.isNull()) |
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346 | { |
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347 | ret = i->pSkeleton->_getAnimationImpl(name); |
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348 | if (ret && linker) |
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349 | { |
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350 | *linker = &(*i); |
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351 | } |
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352 | |
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353 | } |
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354 | } |
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355 | |
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356 | } |
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357 | else |
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358 | { |
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359 | if (linker) |
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360 | *linker = 0; |
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361 | ret = i->second; |
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362 | } |
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363 | |
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364 | return ret; |
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365 | |
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366 | } |
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367 | //--------------------------------------------------------------------- |
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368 | void Skeleton::removeAnimation(const String& name) |
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369 | { |
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370 | AnimationList::iterator i = mAnimationsList.find(name); |
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371 | |
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372 | if (i == mAnimationsList.end()) |
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373 | { |
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374 | OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "No animation entry found named " + name, |
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375 | "Skeleton::getAnimation"); |
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376 | } |
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377 | |
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378 | delete i->second; |
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379 | |
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380 | mAnimationsList.erase(i); |
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381 | |
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382 | } |
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383 | //----------------------------------------------------------------------- |
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384 | void Skeleton::_initAnimationState(AnimationStateSet* animSet) |
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385 | { |
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386 | animSet->removeAllAnimationStates(); |
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387 | |
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388 | AnimationList::iterator i; |
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389 | for (i = mAnimationsList.begin(); i != mAnimationsList.end(); ++i) |
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390 | { |
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391 | Animation* anim = i->second; |
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392 | // Create animation at time index 0, default params mean this has weight 1 and is disabled |
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393 | const String& animName = anim->getName(); |
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394 | animSet->createAnimationState(animName, 0.0, anim->getLength()); |
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395 | } |
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396 | |
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397 | // Also iterate over linked animation |
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398 | LinkedSkeletonAnimSourceList::iterator li; |
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399 | for (li = mLinkedSkeletonAnimSourceList.begin(); |
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400 | li != mLinkedSkeletonAnimSourceList.end(); ++li) |
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401 | { |
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402 | if (!li->pSkeleton.isNull()) |
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403 | { |
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404 | li->pSkeleton->_refreshAnimationState(animSet); |
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405 | } |
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406 | } |
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407 | |
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408 | } |
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409 | //----------------------------------------------------------------------- |
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410 | void Skeleton::_refreshAnimationState(AnimationStateSet* animSet) |
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411 | { |
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412 | // Merge in any new animations |
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413 | AnimationList::iterator i; |
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414 | for (i = mAnimationsList.begin(); i != mAnimationsList.end(); ++i) |
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415 | { |
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416 | Animation* anim = i->second; |
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417 | // Create animation at time index 0, default params mean this has weight 1 and is disabled |
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418 | const String& animName = anim->getName(); |
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419 | if (!animSet->hasAnimationState(animName)) |
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420 | { |
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421 | animSet->createAnimationState(animName, 0.0, anim->getLength()); |
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422 | } |
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423 | else |
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424 | { |
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425 | // Update length incase changed |
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426 | AnimationState* animState = animSet->getAnimationState(animName); |
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427 | animState->setLength(anim->getLength()); |
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428 | animState->setTimePosition(std::min(anim->getLength(), animState->getTimePosition())); |
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429 | } |
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430 | } |
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431 | // Also iterate over linked animation |
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432 | LinkedSkeletonAnimSourceList::iterator li; |
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433 | for (li = mLinkedSkeletonAnimSourceList.begin(); |
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434 | li != mLinkedSkeletonAnimSourceList.end(); ++li) |
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435 | { |
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436 | if (!li->pSkeleton.isNull()) |
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437 | { |
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438 | li->pSkeleton->_refreshAnimationState(animSet); |
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439 | } |
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440 | } |
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441 | } |
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442 | //----------------------------------------------------------------------- |
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443 | void Skeleton::_notifyManualBonesDirty(void) |
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444 | { |
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445 | mManualBonesDirty = true; |
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446 | } |
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447 | //----------------------------------------------------------------------- |
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448 | void Skeleton::_notifyManualBoneStateChange(Bone* bone) |
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449 | { |
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450 | if (bone->isManuallyControlled()) |
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451 | mManualBones.insert(bone); |
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452 | else |
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453 | mManualBones.erase(bone); |
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454 | } |
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455 | //----------------------------------------------------------------------- |
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456 | unsigned short Skeleton::getNumBones(void) const |
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457 | { |
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458 | return (unsigned short)mBoneList.size(); |
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459 | } |
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460 | //----------------------------------------------------------------------- |
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461 | void Skeleton::_getBoneMatrices(Matrix4* pMatrices) |
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462 | { |
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463 | // Update derived transforms |
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464 | _updateTransforms(); |
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465 | |
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466 | /* |
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467 | Calculating the bone matrices |
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468 | ----------------------------- |
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469 | Now that we have the derived scaling factors, orientations & positions in the |
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470 | Bone nodes, we have to compute the Matrix4 to apply to the vertices of a mesh. |
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471 | Because any modification of a vertex has to be relative to the bone, we must |
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472 | first reverse transform by the Bone's original derived position/orientation/scale, |
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473 | then transform by the new derived position/orientation/scale. |
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474 | Also note we combine scale as equivalent axes, no shearing. |
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475 | */ |
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476 | |
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477 | BoneList::const_iterator i, boneend; |
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478 | boneend = mBoneList.end(); |
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479 | for (i = mBoneList.begin();i != boneend; ++i) |
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480 | { |
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481 | Bone* pBone = *i; |
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482 | pBone->_getOffsetTransform(*pMatrices); |
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483 | pMatrices++; |
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484 | } |
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485 | |
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486 | } |
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487 | //--------------------------------------------------------------------- |
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488 | unsigned short Skeleton::getNumAnimations(void) const |
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489 | { |
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490 | return (unsigned short)mAnimationsList.size(); |
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491 | } |
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492 | //--------------------------------------------------------------------- |
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493 | Animation* Skeleton::getAnimation(unsigned short index) const |
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494 | { |
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495 | // If you hit this assert, then the index is out of bounds. |
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496 | assert( index < mAnimationsList.size() ); |
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497 | |
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498 | AnimationList::const_iterator i = mAnimationsList.begin(); |
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499 | |
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500 | std::advance(i, index); |
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501 | |
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502 | return i->second; |
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503 | } |
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504 | //--------------------------------------------------------------------- |
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505 | Bone* Skeleton::getBone(unsigned short handle) const |
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506 | { |
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507 | assert(handle < mBoneList.size() && "Index out of bounds"); |
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508 | return mBoneList[handle]; |
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509 | } |
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510 | //--------------------------------------------------------------------- |
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511 | Bone* Skeleton::getBone(const String& name) const |
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512 | { |
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513 | BoneListByName::const_iterator i = mBoneListByName.find(name); |
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514 | |
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515 | if (i == mBoneListByName.end()) |
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516 | { |
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517 | OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "Bone named '" + name + "' not found.", |
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518 | "Skeleton::getBone"); |
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519 | } |
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520 | |
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521 | return i->second; |
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522 | |
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523 | } |
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524 | //--------------------------------------------------------------------- |
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525 | void Skeleton::deriveRootBone(void) const |
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526 | { |
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527 | // Start at the first bone and work up |
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528 | if (mBoneList.empty()) |
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529 | { |
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530 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, "Cannot derive root bone as this " |
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531 | "skeleton has no bones!", "Skeleton::deriveRootBone"); |
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532 | } |
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533 | |
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534 | mRootBones.clear(); |
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535 | |
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536 | Bone* currentBone; |
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537 | BoneList::const_iterator i; |
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538 | BoneList::const_iterator iend = mBoneList.end(); |
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539 | for (i = mBoneList.begin(); i != iend; ++i) |
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540 | { |
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541 | currentBone = *i; |
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542 | if (currentBone->getParent() == 0) |
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543 | { |
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544 | // This is a root |
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545 | mRootBones.push_back(currentBone); |
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546 | } |
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547 | } |
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548 | } |
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549 | //--------------------------------------------------------------------- |
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550 | void Skeleton::_dumpContents(const String& filename) |
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551 | { |
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552 | std::ofstream of; |
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553 | |
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554 | Quaternion q; |
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555 | Radian angle; |
---|
556 | Vector3 axis; |
---|
557 | of.open(filename.c_str()); |
---|
558 | |
---|
559 | of << "-= Debug output of skeleton " << mName << " =-" << std::endl << std::endl; |
---|
560 | of << "== Bones ==" << std::endl; |
---|
561 | of << "Number of bones: " << (unsigned int)mBoneList.size() << std::endl; |
---|
562 | |
---|
563 | BoneList::iterator bi; |
---|
564 | for (bi = mBoneList.begin(); bi != mBoneList.end(); ++bi) |
---|
565 | { |
---|
566 | Bone* bone = *bi; |
---|
567 | |
---|
568 | of << "-- Bone " << bone->getHandle() << " --" << std::endl; |
---|
569 | of << "Position: " << bone->getPosition(); |
---|
570 | q = bone->getOrientation(); |
---|
571 | of << "Rotation: " << q; |
---|
572 | q.ToAngleAxis(angle, axis); |
---|
573 | of << " = " << angle.valueRadians() << " radians around axis " << axis << std::endl << std::endl; |
---|
574 | } |
---|
575 | |
---|
576 | of << "== Animations ==" << std::endl; |
---|
577 | of << "Number of animations: " << (unsigned int)mAnimationsList.size() << std::endl; |
---|
578 | |
---|
579 | AnimationList::iterator ai; |
---|
580 | for (ai = mAnimationsList.begin(); ai != mAnimationsList.end(); ++ai) |
---|
581 | { |
---|
582 | Animation* anim = ai->second; |
---|
583 | |
---|
584 | of << "-- Animation '" << anim->getName() << "' (length " << anim->getLength() << ") --" << std::endl; |
---|
585 | of << "Number of tracks: " << anim->getNumNodeTracks() << std::endl; |
---|
586 | |
---|
587 | int ti; |
---|
588 | for (ti = 0; ti < anim->getNumNodeTracks(); ++ti) |
---|
589 | { |
---|
590 | NodeAnimationTrack* track = anim->getNodeTrack(ti); |
---|
591 | of << " -- AnimationTrack " << ti << " --" << std::endl; |
---|
592 | of << " Affects bone: " << ((Bone*)track->getAssociatedNode())->getHandle() << std::endl; |
---|
593 | of << " Number of keyframes: " << track->getNumKeyFrames() << std::endl; |
---|
594 | |
---|
595 | int ki; |
---|
596 | |
---|
597 | for (ki = 0; ki < track->getNumKeyFrames(); ++ki) |
---|
598 | { |
---|
599 | TransformKeyFrame* key = track->getNodeKeyFrame(ki); |
---|
600 | of << " -- KeyFrame " << ki << " --" << std::endl; |
---|
601 | of << " Time index: " << key->getTime(); |
---|
602 | of << " Translation: " << key->getTranslate() << std::endl; |
---|
603 | q = key->getRotation(); |
---|
604 | of << " Rotation: " << q; |
---|
605 | q.ToAngleAxis(angle, axis); |
---|
606 | of << " = " << angle.valueRadians() << " radians around axis " << axis << std::endl; |
---|
607 | } |
---|
608 | |
---|
609 | } |
---|
610 | |
---|
611 | |
---|
612 | |
---|
613 | } |
---|
614 | |
---|
615 | } |
---|
616 | //--------------------------------------------------------------------- |
---|
617 | SkeletonAnimationBlendMode Skeleton::getBlendMode() const |
---|
618 | { |
---|
619 | return mBlendState; |
---|
620 | } |
---|
621 | //--------------------------------------------------------------------- |
---|
622 | void Skeleton::setBlendMode(SkeletonAnimationBlendMode state) |
---|
623 | { |
---|
624 | mBlendState = state; |
---|
625 | } |
---|
626 | //--------------------------------------------------------------------- |
---|
627 | Skeleton::BoneIterator Skeleton::getRootBoneIterator(void) |
---|
628 | { |
---|
629 | if (mRootBones.empty()) |
---|
630 | { |
---|
631 | deriveRootBone(); |
---|
632 | } |
---|
633 | return BoneIterator(mRootBones.begin(), mRootBones.end()); |
---|
634 | } |
---|
635 | //--------------------------------------------------------------------- |
---|
636 | Skeleton::BoneIterator Skeleton::getBoneIterator(void) |
---|
637 | { |
---|
638 | return BoneIterator(mBoneList.begin(), mBoneList.end()); |
---|
639 | } |
---|
640 | //--------------------------------------------------------------------- |
---|
641 | void Skeleton::_updateTransforms(void) |
---|
642 | { |
---|
643 | BoneList::iterator i, iend; |
---|
644 | iend = mRootBones.end(); |
---|
645 | for (i = mRootBones.begin(); i != iend; ++i) |
---|
646 | { |
---|
647 | (*i)->_update(true, false); |
---|
648 | } |
---|
649 | mManualBonesDirty = false; |
---|
650 | } |
---|
651 | //--------------------------------------------------------------------- |
---|
652 | void Skeleton::optimiseAllAnimations(bool preservingIdentityNodeTracks) |
---|
653 | { |
---|
654 | AnimationList::iterator ai, aiend; |
---|
655 | aiend = mAnimationsList.end(); |
---|
656 | |
---|
657 | if (!preservingIdentityNodeTracks) |
---|
658 | { |
---|
659 | Animation::TrackHandleList tracksToDestroy; |
---|
660 | |
---|
661 | // Assume all node tracks are identity |
---|
662 | ushort numBones = getNumBones(); |
---|
663 | for (ushort h = 0; h < numBones; ++h) |
---|
664 | { |
---|
665 | tracksToDestroy.insert(h); |
---|
666 | } |
---|
667 | |
---|
668 | // Collect identity node tracks for all animations |
---|
669 | for (ai = mAnimationsList.begin(); ai != aiend; ++ai) |
---|
670 | { |
---|
671 | ai->second->_collectIdentityNodeTracks(tracksToDestroy); |
---|
672 | } |
---|
673 | |
---|
674 | // Destroy identity node tracks |
---|
675 | for (ai = mAnimationsList.begin(); ai != aiend; ++ai) |
---|
676 | { |
---|
677 | ai->second->_destroyNodeTracks(tracksToDestroy); |
---|
678 | } |
---|
679 | } |
---|
680 | |
---|
681 | for (ai = mAnimationsList.begin(); ai != aiend; ++ai) |
---|
682 | { |
---|
683 | // Don't discard identity node tracks here |
---|
684 | ai->second->optimise(false); |
---|
685 | } |
---|
686 | } |
---|
687 | //--------------------------------------------------------------------- |
---|
688 | void Skeleton::addLinkedSkeletonAnimationSource(const String& skelName, |
---|
689 | Real scale) |
---|
690 | { |
---|
691 | // Check not already linked |
---|
692 | LinkedSkeletonAnimSourceList::iterator i; |
---|
693 | for (i = mLinkedSkeletonAnimSourceList.begin(); |
---|
694 | i != mLinkedSkeletonAnimSourceList.end(); ++i) |
---|
695 | { |
---|
696 | if (skelName == i->skeletonName) |
---|
697 | return; // don't bother |
---|
698 | } |
---|
699 | |
---|
700 | if (isLoaded()) |
---|
701 | { |
---|
702 | // Load immediately |
---|
703 | SkeletonPtr skelPtr = |
---|
704 | SkeletonManager::getSingleton().load(skelName, mGroup); |
---|
705 | mLinkedSkeletonAnimSourceList.push_back( |
---|
706 | LinkedSkeletonAnimationSource(skelName, scale, skelPtr)); |
---|
707 | |
---|
708 | } |
---|
709 | else |
---|
710 | { |
---|
711 | // Load later |
---|
712 | mLinkedSkeletonAnimSourceList.push_back( |
---|
713 | LinkedSkeletonAnimationSource(skelName, scale)); |
---|
714 | } |
---|
715 | |
---|
716 | } |
---|
717 | //--------------------------------------------------------------------- |
---|
718 | void Skeleton::removeAllLinkedSkeletonAnimationSources(void) |
---|
719 | { |
---|
720 | mLinkedSkeletonAnimSourceList.clear(); |
---|
721 | } |
---|
722 | //--------------------------------------------------------------------- |
---|
723 | Skeleton::LinkedSkeletonAnimSourceIterator |
---|
724 | Skeleton::getLinkedSkeletonAnimationSourceIterator(void) const |
---|
725 | { |
---|
726 | return LinkedSkeletonAnimSourceIterator( |
---|
727 | mLinkedSkeletonAnimSourceList.begin(), |
---|
728 | mLinkedSkeletonAnimSourceList.end()); |
---|
729 | } |
---|
730 | //--------------------------------------------------------------------- |
---|
731 | struct DeltaTransform |
---|
732 | { |
---|
733 | Vector3 translate; |
---|
734 | Quaternion rotate; |
---|
735 | Vector3 scale; |
---|
736 | bool isIdentity; |
---|
737 | }; |
---|
738 | void Skeleton::_mergeSkeletonAnimations(const Skeleton* src, |
---|
739 | const BoneHandleMap& boneHandleMap, |
---|
740 | const StringVector& animations) |
---|
741 | { |
---|
742 | ushort handle; |
---|
743 | |
---|
744 | ushort numSrcBones = src->getNumBones(); |
---|
745 | ushort numDstBones = this->getNumBones(); |
---|
746 | |
---|
747 | if (boneHandleMap.size() != numSrcBones) |
---|
748 | { |
---|
749 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, |
---|
750 | "Number of bones in the bone handle map must equal to " |
---|
751 | "number of bones in the source skeleton.", |
---|
752 | "Skeleton::_mergeSkeletonAnimations"); |
---|
753 | } |
---|
754 | |
---|
755 | bool existsMissingBone = false; |
---|
756 | |
---|
757 | // Check source skeleton structures compatible with ourself (that means |
---|
758 | // identically bones with identical handles, and with same hierarchy, but |
---|
759 | // not necessary to have same number of bones and bone names). |
---|
760 | for (handle = 0; handle < numSrcBones; ++handle) |
---|
761 | { |
---|
762 | const Bone* srcBone = src->getBone(handle); |
---|
763 | ushort dstHandle = boneHandleMap[handle]; |
---|
764 | |
---|
765 | // Does it exists in target skeleton? |
---|
766 | if (dstHandle < numDstBones) |
---|
767 | { |
---|
768 | Bone* destBone = this->getBone(dstHandle); |
---|
769 | |
---|
770 | // Check both bones have identical parent, or both are root bone. |
---|
771 | const Bone* srcParent = static_cast<Bone*>(srcBone->getParent()); |
---|
772 | Bone* destParent = static_cast<Bone*>(destBone->getParent()); |
---|
773 | if ((srcParent || destParent) && |
---|
774 | (!srcParent || !destParent || |
---|
775 | boneHandleMap[srcParent->getHandle()] != destParent->getHandle())) |
---|
776 | { |
---|
777 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, |
---|
778 | "Source skeleton incompatible with this skeleton: " |
---|
779 | "difference hierarchy between bone '" + srcBone->getName() + |
---|
780 | "' and '" + destBone->getName() + "'.", |
---|
781 | "Skeleton::_mergeSkeletonAnimations"); |
---|
782 | } |
---|
783 | } |
---|
784 | else |
---|
785 | { |
---|
786 | existsMissingBone = true; |
---|
787 | } |
---|
788 | } |
---|
789 | |
---|
790 | // Clone bones if need |
---|
791 | if (existsMissingBone) |
---|
792 | { |
---|
793 | // Create missing bones |
---|
794 | for (handle = 0; handle < numSrcBones; ++handle) |
---|
795 | { |
---|
796 | const Bone* srcBone = src->getBone(handle); |
---|
797 | ushort dstHandle = boneHandleMap[handle]; |
---|
798 | |
---|
799 | // The bone is missing in target skeleton? |
---|
800 | if (dstHandle >= numDstBones) |
---|
801 | { |
---|
802 | Bone* dstBone = this->createBone(srcBone->getName(), dstHandle); |
---|
803 | // Sets initial transform |
---|
804 | dstBone->setPosition(srcBone->getInitialPosition()); |
---|
805 | dstBone->setOrientation(srcBone->getInitialOrientation()); |
---|
806 | dstBone->setScale(srcBone->getInitialScale()); |
---|
807 | dstBone->setInitialState(); |
---|
808 | } |
---|
809 | } |
---|
810 | |
---|
811 | // Link new bones to parent |
---|
812 | for (handle = 0; handle < numSrcBones; ++handle) |
---|
813 | { |
---|
814 | const Bone* srcBone = src->getBone(handle); |
---|
815 | ushort dstHandle = boneHandleMap[handle]; |
---|
816 | |
---|
817 | // Is new bone? |
---|
818 | if (dstHandle >= numDstBones) |
---|
819 | { |
---|
820 | const Bone* srcParent = static_cast<Bone*>(srcBone->getParent()); |
---|
821 | if (srcParent) |
---|
822 | { |
---|
823 | Bone* destParent = this->getBone(boneHandleMap[srcParent->getHandle()]); |
---|
824 | Bone* dstBone = this->getBone(dstHandle); |
---|
825 | destParent->addChild(dstBone); |
---|
826 | } |
---|
827 | } |
---|
828 | } |
---|
829 | |
---|
830 | // Derive root bones in case it was changed |
---|
831 | this->deriveRootBone(); |
---|
832 | |
---|
833 | // Reset binding pose for new bones |
---|
834 | this->reset(true); |
---|
835 | this->setBindingPose(); |
---|
836 | } |
---|
837 | |
---|
838 | // |
---|
839 | // We need to adapt animations from source to target skeleton, but since source |
---|
840 | // and target skeleton bones bind transform might difference, so we need to alter |
---|
841 | // keyframes in source to suit to target skeleton. |
---|
842 | // |
---|
843 | // For any given animation time, formula: |
---|
844 | // |
---|
845 | // LocalTransform = BindTransform * KeyFrame; |
---|
846 | // DerivedTransform = ParentDerivedTransform * LocalTransform |
---|
847 | // |
---|
848 | // And all derived transforms should be keep identically after adapt to |
---|
849 | // target skeleton, Then: |
---|
850 | // |
---|
851 | // DestDerivedTransform == SrcDerivedTransform |
---|
852 | // DestParentDerivedTransform == SrcParentDerivedTransform |
---|
853 | // ==> |
---|
854 | // DestLocalTransform = SrcLocalTransform |
---|
855 | // ==> |
---|
856 | // DestBindTransform * DestKeyFrame = SrcBindTransform * SrcKeyFrame |
---|
857 | // ==> |
---|
858 | // DestKeyFrame = inverse(DestBindTransform) * SrcBindTransform * SrcKeyFrame |
---|
859 | // |
---|
860 | // We define (inverse(DestBindTransform) * SrcBindTransform) as 'delta-transform' here. |
---|
861 | // |
---|
862 | |
---|
863 | // Calculate delta-transforms for all source bones. |
---|
864 | std::vector<DeltaTransform> deltaTransforms(numSrcBones); |
---|
865 | for (handle = 0; handle < numSrcBones; ++handle) |
---|
866 | { |
---|
867 | const Bone* srcBone = src->getBone(handle); |
---|
868 | DeltaTransform& deltaTransform = deltaTransforms[handle]; |
---|
869 | ushort dstHandle = boneHandleMap[handle]; |
---|
870 | |
---|
871 | if (dstHandle < numDstBones) |
---|
872 | { |
---|
873 | // Common bone, calculate delta-transform |
---|
874 | |
---|
875 | Bone* dstBone = this->getBone(dstHandle); |
---|
876 | |
---|
877 | deltaTransform.translate = srcBone->getInitialPosition() - dstBone->getInitialPosition(); |
---|
878 | deltaTransform.rotate = dstBone->getInitialOrientation().Inverse() * srcBone->getInitialOrientation(); |
---|
879 | deltaTransform.scale = srcBone->getInitialScale() / dstBone->getInitialScale(); |
---|
880 | |
---|
881 | // Check whether or not delta-transform is identity |
---|
882 | const Real tolerance = 1e-3f; |
---|
883 | Vector3 axis; |
---|
884 | Radian angle; |
---|
885 | deltaTransform.rotate.ToAngleAxis(angle, axis); |
---|
886 | deltaTransform.isIdentity = |
---|
887 | deltaTransform.translate.positionEquals(Vector3::ZERO, tolerance) && |
---|
888 | deltaTransform.scale.positionEquals(Vector3::UNIT_SCALE, tolerance) && |
---|
889 | Math::RealEqual(angle.valueRadians(), 0.0f, tolerance); |
---|
890 | } |
---|
891 | else |
---|
892 | { |
---|
893 | // New bone, the delta-transform is identity |
---|
894 | |
---|
895 | deltaTransform.translate = Vector3::ZERO; |
---|
896 | deltaTransform.rotate = Quaternion::IDENTITY; |
---|
897 | deltaTransform.scale = Vector3::UNIT_SCALE; |
---|
898 | deltaTransform.isIdentity = true; |
---|
899 | } |
---|
900 | } |
---|
901 | |
---|
902 | // Now copy animations |
---|
903 | |
---|
904 | ushort numAnimations; |
---|
905 | if (animations.empty()) |
---|
906 | numAnimations = src->getNumAnimations(); |
---|
907 | else |
---|
908 | numAnimations = static_cast<ushort>(animations.size()); |
---|
909 | for (ushort i = 0; i < numAnimations; ++i) |
---|
910 | { |
---|
911 | const Animation* srcAnimation; |
---|
912 | if (animations.empty()) |
---|
913 | { |
---|
914 | // Get animation of source skeleton by the given index |
---|
915 | srcAnimation = src->getAnimation(i); |
---|
916 | } |
---|
917 | else |
---|
918 | { |
---|
919 | // Get animation of source skeleton by the given name |
---|
920 | const LinkedSkeletonAnimationSource* linker; |
---|
921 | srcAnimation = src->_getAnimationImpl(animations[i], &linker); |
---|
922 | if (!srcAnimation || linker) |
---|
923 | { |
---|
924 | OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, |
---|
925 | "No animation entry found named " + animations[i], |
---|
926 | "Skeleton::_mergeSkeletonAnimations"); |
---|
927 | } |
---|
928 | } |
---|
929 | |
---|
930 | // Create target animation |
---|
931 | Animation* dstAnimation = this->createAnimation(srcAnimation->getName(), srcAnimation->getLength()); |
---|
932 | |
---|
933 | // Copy interpolation modes |
---|
934 | dstAnimation->setInterpolationMode(srcAnimation->getInterpolationMode()); |
---|
935 | dstAnimation->setRotationInterpolationMode(srcAnimation->getRotationInterpolationMode()); |
---|
936 | |
---|
937 | // Copy track for each bone |
---|
938 | for (handle = 0; handle < numSrcBones; ++handle) |
---|
939 | { |
---|
940 | const DeltaTransform& deltaTransform = deltaTransforms[handle]; |
---|
941 | ushort dstHandle = boneHandleMap[handle]; |
---|
942 | |
---|
943 | if (srcAnimation->hasNodeTrack(handle)) |
---|
944 | { |
---|
945 | // Clone track from source animation |
---|
946 | |
---|
947 | const NodeAnimationTrack* srcTrack = srcAnimation->getNodeTrack(handle); |
---|
948 | NodeAnimationTrack* dstTrack = dstAnimation->createNodeTrack(dstHandle, this->getBone(dstHandle)); |
---|
949 | dstTrack->setUseShortestRotationPath(srcTrack->getUseShortestRotationPath()); |
---|
950 | |
---|
951 | ushort numKeyFrames = srcTrack->getNumKeyFrames(); |
---|
952 | for (ushort k = 0; k < numKeyFrames; ++k) |
---|
953 | { |
---|
954 | const TransformKeyFrame* srcKeyFrame = srcTrack->getNodeKeyFrame(k); |
---|
955 | TransformKeyFrame* dstKeyFrame = dstTrack->createNodeKeyFrame(srcKeyFrame->getTime()); |
---|
956 | |
---|
957 | // Adjust keyframes to match target binding pose |
---|
958 | if (deltaTransform.isIdentity) |
---|
959 | { |
---|
960 | dstKeyFrame->setTranslate(srcKeyFrame->getTranslate()); |
---|
961 | dstKeyFrame->setRotation(srcKeyFrame->getRotation()); |
---|
962 | dstKeyFrame->setScale(srcKeyFrame->getScale()); |
---|
963 | } |
---|
964 | else |
---|
965 | { |
---|
966 | dstKeyFrame->setTranslate(deltaTransform.translate + srcKeyFrame->getTranslate()); |
---|
967 | dstKeyFrame->setRotation(deltaTransform.rotate * srcKeyFrame->getRotation()); |
---|
968 | dstKeyFrame->setScale(deltaTransform.scale * srcKeyFrame->getScale()); |
---|
969 | } |
---|
970 | } |
---|
971 | } |
---|
972 | else if (!deltaTransform.isIdentity) |
---|
973 | { |
---|
974 | // Create 'static' track for this bone |
---|
975 | |
---|
976 | NodeAnimationTrack* dstTrack = dstAnimation->createNodeTrack(dstHandle, this->getBone(dstHandle)); |
---|
977 | TransformKeyFrame* dstKeyFrame; |
---|
978 | |
---|
979 | dstKeyFrame = dstTrack->createNodeKeyFrame(0); |
---|
980 | dstKeyFrame->setTranslate(deltaTransform.translate); |
---|
981 | dstKeyFrame->setRotation(deltaTransform.rotate); |
---|
982 | dstKeyFrame->setScale(deltaTransform.scale); |
---|
983 | |
---|
984 | dstKeyFrame = dstTrack->createNodeKeyFrame(dstAnimation->getLength()); |
---|
985 | dstKeyFrame->setTranslate(deltaTransform.translate); |
---|
986 | dstKeyFrame->setRotation(deltaTransform.rotate); |
---|
987 | dstKeyFrame->setScale(deltaTransform.scale); |
---|
988 | } |
---|
989 | } |
---|
990 | } |
---|
991 | } |
---|
992 | //--------------------------------------------------------------------- |
---|
993 | void Skeleton::_buildMapBoneByHandle(const Skeleton* src, |
---|
994 | BoneHandleMap& boneHandleMap) const |
---|
995 | { |
---|
996 | ushort numSrcBones = src->getNumBones(); |
---|
997 | boneHandleMap.resize(numSrcBones); |
---|
998 | |
---|
999 | for (ushort handle = 0; handle < numSrcBones; ++handle) |
---|
1000 | { |
---|
1001 | boneHandleMap[handle] = handle; |
---|
1002 | } |
---|
1003 | } |
---|
1004 | //--------------------------------------------------------------------- |
---|
1005 | void Skeleton::_buildMapBoneByName(const Skeleton* src, |
---|
1006 | BoneHandleMap& boneHandleMap) const |
---|
1007 | { |
---|
1008 | ushort numSrcBones = src->getNumBones(); |
---|
1009 | boneHandleMap.resize(numSrcBones); |
---|
1010 | |
---|
1011 | ushort newBoneHandle = this->getNumBones(); |
---|
1012 | for (ushort handle = 0; handle < numSrcBones; ++handle) |
---|
1013 | { |
---|
1014 | const Bone* srcBone = src->getBone(handle); |
---|
1015 | BoneListByName::const_iterator i = this->mBoneListByName.find(srcBone->getName()); |
---|
1016 | if (i == mBoneListByName.end()) |
---|
1017 | boneHandleMap[handle] = newBoneHandle++; |
---|
1018 | else |
---|
1019 | boneHandleMap[handle] = i->second->getHandle(); |
---|
1020 | } |
---|
1021 | } |
---|
1022 | |
---|
1023 | } |
---|
1024 | |
---|