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 | #include "OgreStableHeaders.h"
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26 | #include "OgreAnimationTrack.h"
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27 | #include "OgreAnimation.h"
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28 | #include "OgreKeyFrame.h"
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29 | #include "OgreNode.h"
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30 | #include "OgreLogManager.h"
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31 | #include "OgreHardwareBufferManager.h"
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32 | #include "OgreMesh.h"
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33 | #include "OgreException.h"
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34 |
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35 | namespace Ogre {
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36 |
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37 | //---------------------------------------------------------------------
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38 | AnimationTrack::AnimationTrack(Animation* parent, unsigned short handle) :
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39 | mMaxKeyFrameTime(-1), mParent(parent), mHandle(handle)
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40 | {
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41 | }
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42 | //---------------------------------------------------------------------
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43 | AnimationTrack::~AnimationTrack()
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44 | {
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45 | removeAllKeyFrames();
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46 | }
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47 | //---------------------------------------------------------------------
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48 | unsigned short AnimationTrack::getNumKeyFrames(void) const
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49 | {
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50 | return (unsigned short)mKeyFrames.size();
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51 | }
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52 | //---------------------------------------------------------------------
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53 | KeyFrame* AnimationTrack::getKeyFrame(unsigned short index) const
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54 | {
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55 | // If you hit this assert, then the keyframe index is out of bounds
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56 | assert( index < (ushort)mKeyFrames.size() );
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57 |
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58 | return mKeyFrames[index];
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59 | }
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60 | //---------------------------------------------------------------------
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61 | Real AnimationTrack::getKeyFramesAtTime(Real timePos, KeyFrame** keyFrame1, KeyFrame** keyFrame2,
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62 | unsigned short* firstKeyIndex) const
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63 | {
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64 | short firstIndex = -1;
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65 | Real totalAnimationLength = mParent->getLength();
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66 |
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67 | // Wrap time
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68 | while (timePos > totalAnimationLength)
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69 | {
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70 | timePos -= totalAnimationLength;
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71 | }
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72 |
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73 | KeyFrameList::const_iterator i = mKeyFrames.begin();
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74 | // Find last keyframe before or on current time
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75 | while (i != mKeyFrames.end() && (*i)->getTime() <= timePos)
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76 | {
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77 | *keyFrame1 = *i++;
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78 | ++firstIndex;
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79 | }
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80 |
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81 | // Trap case where there is no key before this time (problem with animation config)
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82 | // In this case use the first key anyway and pretend it's time index 0
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83 | if (firstIndex == -1)
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84 | {
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85 | *keyFrame1 = *i;
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86 | ++firstIndex;
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87 | }
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88 |
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89 | // Fill index of the first key
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90 | if (firstKeyIndex != NULL)
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91 | {
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92 | *firstKeyIndex = firstIndex;
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93 | }
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94 |
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95 | // Parametric time
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96 | // t1 = time of previous keyframe
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97 | // t2 = time of next keyframe
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98 | Real t1, t2;
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99 | // Find first keyframe after the time
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100 | // If no next keyframe, wrap back to first
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101 | if (i == mKeyFrames.end())
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102 | {
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103 | *keyFrame2 = mKeyFrames[0];
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104 | t2 = totalAnimationLength;
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105 | }
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106 | else
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107 | {
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108 | *keyFrame2 = *i;
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109 | t2 = (*keyFrame2)->getTime();
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110 | }
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111 |
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112 | t1 = (*keyFrame1)->getTime();
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113 |
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114 | if (t1 == t2)
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115 | {
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116 | // Same KeyFrame (only one)
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117 | return 0.0;
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118 | }
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119 | else
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120 | {
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121 | return (timePos - t1) / (t2 - t1);
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122 | }
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123 | }
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124 | //---------------------------------------------------------------------
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125 | KeyFrame* AnimationTrack::createKeyFrame(Real timePos)
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126 | {
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127 | KeyFrame* kf = createKeyFrameImpl(timePos);
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128 |
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129 | // Insert at correct location
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130 | if (timePos > mMaxKeyFrameTime || (timePos == 0 && mKeyFrames.empty()))
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131 | {
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132 | // Quick insert at end
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133 | mKeyFrames.push_back(kf);
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134 | mMaxKeyFrameTime = timePos;
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135 | }
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136 | else
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137 | {
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138 | // Search
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139 | KeyFrameList::iterator i = mKeyFrames.begin();
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140 | while ((*i)->getTime() < timePos && i != mKeyFrames.end())
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141 | {
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142 | ++i;
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143 | }
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144 | mKeyFrames.insert(i, kf);
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145 | }
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146 |
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147 | _keyFrameDataChanged();
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148 |
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149 | return kf;
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150 |
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151 | }
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152 | //---------------------------------------------------------------------
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153 | void AnimationTrack::removeKeyFrame(unsigned short index)
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154 | {
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155 | // If you hit this assert, then the keyframe index is out of bounds
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156 | assert( index < (ushort)mKeyFrames.size() );
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157 |
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158 | KeyFrameList::iterator i = mKeyFrames.begin();
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159 |
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160 | i += index;
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161 |
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162 | delete *i;
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163 |
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164 | mKeyFrames.erase(i);
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165 |
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166 | _keyFrameDataChanged();
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167 |
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168 |
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169 | }
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170 | //---------------------------------------------------------------------
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171 | void AnimationTrack::removeAllKeyFrames(void)
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172 | {
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173 | KeyFrameList::iterator i = mKeyFrames.begin();
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174 |
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175 | for (; i != mKeyFrames.end(); ++i)
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176 | {
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177 | delete *i;
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178 | }
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179 |
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180 | _keyFrameDataChanged();
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181 |
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182 | mKeyFrames.clear();
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183 |
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184 | }
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185 | //---------------------------------------------------------------------
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186 | //---------------------------------------------------------------------
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187 | // Numeric specialisations
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188 | //---------------------------------------------------------------------
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189 | NumericAnimationTrack::NumericAnimationTrack(Animation* parent,
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190 | unsigned short handle)
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191 | : AnimationTrack(parent, handle)
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192 | {
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193 | }
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194 | //---------------------------------------------------------------------
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195 | NumericAnimationTrack::NumericAnimationTrack(Animation* parent,
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196 | unsigned short handle, AnimableValuePtr& target)
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197 | :AnimationTrack(parent, handle), mTargetAnim(target)
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198 | {
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199 | }
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200 | //---------------------------------------------------------------------
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201 | const AnimableValuePtr& NumericAnimationTrack::getAssociatedAnimable(void) const
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202 | {
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203 | return mTargetAnim;
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204 | }
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205 | //---------------------------------------------------------------------
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206 | void NumericAnimationTrack::setAssociatedAnimable(const AnimableValuePtr& val)
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207 | {
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208 | mTargetAnim = val;
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209 | }
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210 | //---------------------------------------------------------------------
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211 | KeyFrame* NumericAnimationTrack::createKeyFrameImpl(Real time)
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212 | {
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213 | return new NumericKeyFrame(this, time);
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214 | }
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215 | //---------------------------------------------------------------------
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216 | void NumericAnimationTrack::getInterpolatedKeyFrame(Real timeIndex,
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217 | KeyFrame* kf) const
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218 | {
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219 | NumericKeyFrame* kret = static_cast<NumericKeyFrame*>(kf);
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220 |
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221 | // Keyframe pointers
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222 | KeyFrame *kBase1, *kBase2;
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223 | NumericKeyFrame *k1, *k2;
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224 | unsigned short firstKeyIndex;
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225 |
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226 | Real t = this->getKeyFramesAtTime(timeIndex, &kBase1, &kBase2, &firstKeyIndex);
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227 | k1 = static_cast<NumericKeyFrame*>(kBase1);
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228 | k2 = static_cast<NumericKeyFrame*>(kBase2);
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229 |
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230 | if (t == 0.0)
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231 | {
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232 | // Just use k1
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233 | kret->setValue(k1->getValue());
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234 | }
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235 | else
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236 | {
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237 | // Interpolate by t
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238 | AnyNumeric diff = k2->getValue() - k1->getValue();
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239 | kret->setValue(k1->getValue() + diff * t);
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240 | }
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241 | }
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242 | //---------------------------------------------------------------------
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243 | void NumericAnimationTrack::apply(Real timePos, Real weight, bool accumulate,
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244 | Real scale)
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245 | {
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246 | applyToAnimable(mTargetAnim, timePos, weight, scale);
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247 | }
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248 | //---------------------------------------------------------------------
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249 | void NumericAnimationTrack::applyToAnimable(const AnimableValuePtr& anim, Real timePos,
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250 | Real weight, Real scale)
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251 | {
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252 | NumericKeyFrame kf(0, timePos);
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253 | getInterpolatedKeyFrame(timePos, &kf);
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254 | // add to existing. Weights are not relative, but treated as
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255 | // absolute multipliers for the animation
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256 | AnyNumeric val = kf.getValue() * weight * scale;
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257 |
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258 | anim->applyDeltaValue(val);
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259 |
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260 | }
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261 | //--------------------------------------------------------------------------
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262 | NumericKeyFrame* NumericAnimationTrack::createNumericKeyFrame(Real timePos)
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263 | {
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264 | return static_cast<NumericKeyFrame*>(createKeyFrame(timePos));
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265 | }
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266 | //--------------------------------------------------------------------------
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267 | NumericKeyFrame* NumericAnimationTrack::getNumericKeyFrame(unsigned short index) const
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268 | {
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269 | return static_cast<NumericKeyFrame*>(getKeyFrame(index));
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270 | }
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271 | //---------------------------------------------------------------------
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272 | //---------------------------------------------------------------------
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273 | // Node specialisations
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274 | //---------------------------------------------------------------------
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275 | NodeAnimationTrack::NodeAnimationTrack(Animation* parent, unsigned short handle)
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276 | : AnimationTrack(parent, handle), mTargetNode(0), mSplineBuildNeeded(false),
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277 | mUseShortestRotationPath(true)
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278 | {
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279 | }
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280 | //---------------------------------------------------------------------
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281 | NodeAnimationTrack::NodeAnimationTrack(Animation* parent, unsigned short handle,
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282 | Node* targetNode)
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283 | : AnimationTrack(parent, handle), mTargetNode(targetNode),
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284 | mSplineBuildNeeded(false), mUseShortestRotationPath(true)
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285 | {
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286 | }
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287 | //---------------------------------------------------------------------
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288 | void NodeAnimationTrack::getInterpolatedKeyFrame(Real timeIndex, KeyFrame* kf) const
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289 | {
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290 | TransformKeyFrame* kret = static_cast<TransformKeyFrame*>(kf);
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291 |
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292 | // Keyframe pointers
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293 | KeyFrame *kBase1, *kBase2;
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294 | TransformKeyFrame *k1, *k2;
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295 | unsigned short firstKeyIndex;
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296 |
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297 | Real t = this->getKeyFramesAtTime(timeIndex, &kBase1, &kBase2, &firstKeyIndex);
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298 | k1 = static_cast<TransformKeyFrame*>(kBase1);
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299 | k2 = static_cast<TransformKeyFrame*>(kBase2);
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300 |
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301 | if (t == 0.0)
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302 | {
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303 | // Just use k1
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304 | kret->setRotation(k1->getRotation());
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305 | kret->setTranslate(k1->getTranslate());
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306 | kret->setScale(k1->getScale());
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307 | }
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308 | else
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309 | {
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310 | // Interpolate by t
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311 | Animation::InterpolationMode im = mParent->getInterpolationMode();
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312 | Animation::RotationInterpolationMode rim =
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313 | mParent->getRotationInterpolationMode();
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314 | Vector3 base;
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315 | switch(im)
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316 | {
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317 | case Animation::IM_LINEAR:
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318 | // Interpolate linearly
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319 | // Rotation
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320 | // Interpolate to nearest rotation if mUseShortestRotationPath set
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321 | if (rim == Animation::RIM_LINEAR)
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322 | {
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323 | kret->setRotation( Quaternion::nlerp(t, k1->getRotation(),
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324 | k2->getRotation(), mUseShortestRotationPath) );
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325 | }
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326 | else //if (rim == Animation::RIM_SPHERICAL)
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327 | {
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328 | kret->setRotation( Quaternion::Slerp(t, k1->getRotation(),
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329 | k2->getRotation(), mUseShortestRotationPath) );
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330 | }
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331 |
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332 | // Translation
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333 | base = k1->getTranslate();
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334 | kret->setTranslate( base + ((k2->getTranslate() - base) * t) );
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335 |
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336 | // Scale
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337 | base = k1->getScale();
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338 | kret->setScale( base + ((k2->getScale() - base) * t) );
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339 | break;
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340 |
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341 | case Animation::IM_SPLINE:
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342 | // Spline interpolation
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343 |
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344 | // Build splines if required
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345 | if (mSplineBuildNeeded)
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346 | {
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347 | buildInterpolationSplines();
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348 | }
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349 |
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350 | // Rotation, take mUseShortestRotationPath into account
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351 | kret->setRotation( mRotationSpline.interpolate(firstKeyIndex, t,
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352 | mUseShortestRotationPath) );
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353 |
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354 | // Translation
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355 | kret->setTranslate( mPositionSpline.interpolate(firstKeyIndex, t) );
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356 |
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357 | // Scale
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358 | kret->setScale( mScaleSpline.interpolate(firstKeyIndex, t) );
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359 |
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360 | break;
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361 | }
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362 |
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363 | }
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364 |
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365 | }
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366 | //---------------------------------------------------------------------
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367 | void NodeAnimationTrack::apply(Real timePos, Real weight, bool accumulate,
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368 | Real scale)
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369 | {
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370 | applyToNode(mTargetNode, timePos, weight, accumulate, scale);
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371 |
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372 | }
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373 | //---------------------------------------------------------------------
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374 | Node* NodeAnimationTrack::getAssociatedNode(void) const
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375 | {
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376 | return mTargetNode;
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377 | }
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378 | //---------------------------------------------------------------------
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379 | void NodeAnimationTrack::setAssociatedNode(Node* node)
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380 | {
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381 | mTargetNode = node;
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382 | }
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383 | //---------------------------------------------------------------------
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384 | void NodeAnimationTrack::applyToNode(Node* node, Real timePos, Real weight,
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385 | bool accumulate, Real scl)
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386 | {
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387 | TransformKeyFrame kf(0, timePos);
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388 | getInterpolatedKeyFrame(timePos, &kf);
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389 | if (accumulate)
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390 | {
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391 | // add to existing. Weights are not relative, but treated as absolute multipliers for the animation
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392 | Vector3 translate = kf.getTranslate() * weight * scl;
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393 | node->translate(translate);
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394 |
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395 | // interpolate between no-rotation and full rotation, to point 'weight', so 0 = no rotate, 1 = full
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396 | Quaternion rotate;
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397 | Animation::RotationInterpolationMode rim =
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398 | mParent->getRotationInterpolationMode();
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399 | if (rim == Animation::RIM_LINEAR)
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400 | {
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401 | rotate = Quaternion::nlerp(weight, Quaternion::IDENTITY, kf.getRotation());
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402 | }
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403 | else //if (rim == Animation::RIM_SPHERICAL)
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404 | {
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405 | rotate = Quaternion::Slerp(weight, Quaternion::IDENTITY, kf.getRotation());
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406 | }
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407 | node->rotate(rotate);
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408 |
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409 | Vector3 scale = kf.getScale();
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410 | // Not sure how to modify scale for cumulative anims... leave it alone
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411 | //scale = ((Vector3::UNIT_SCALE - kf.getScale()) * weight) + Vector3::UNIT_SCALE;
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412 | if (scl != 1.0f && scale != Vector3::UNIT_SCALE)
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413 | {
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414 | scale = Vector3::UNIT_SCALE + (scale - Vector3::UNIT_SCALE) * scl;
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415 | }
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416 | node->scale(scale);
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417 | }
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418 | else
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419 | {
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420 | // apply using weighted transform method
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421 | Vector3 scale = kf.getScale();
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422 | if (scl != 1.0f && scale != Vector3::UNIT_SCALE)
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423 | {
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424 | scale = Vector3::UNIT_SCALE + (scale - Vector3::UNIT_SCALE) * scl;
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425 | }
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426 | node->_weightedTransform(weight, kf.getTranslate() * scl, kf.getRotation(),
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427 | scale);
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428 | }
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429 |
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430 | /*
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431 | // DEBUG
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432 | if (!mMainWindow)
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433 | {
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434 | mMainWindow = Root::getSingleton().getRenderWindow("OGRE Render Window");
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435 | }
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436 | String msg = "Time: ";
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437 | msg << timePos;
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438 | mMainWindow->setDebugText(msg);
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439 | */
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440 |
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441 | //node->rotate(kf.getRotation() * weight);
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442 | //node->translate(kf.getTranslate() * weight);
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443 |
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444 |
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445 |
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446 |
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447 | }
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448 | //---------------------------------------------------------------------
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449 | void NodeAnimationTrack::buildInterpolationSplines(void) const
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450 | {
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451 | // Don't calc automatically, do it on request at the end
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452 | mPositionSpline.setAutoCalculate(false);
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453 | mRotationSpline.setAutoCalculate(false);
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454 | mScaleSpline.setAutoCalculate(false);
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455 |
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456 | mPositionSpline.clear();
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457 | mRotationSpline.clear();
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458 | mScaleSpline.clear();
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459 |
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460 | KeyFrameList::const_iterator i, iend;
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461 | iend = mKeyFrames.end(); // precall to avoid overhead
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462 | for (i = mKeyFrames.begin(); i != iend; ++i)
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463 | {
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464 | TransformKeyFrame* kf = static_cast<TransformKeyFrame*>(*i);
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465 | mPositionSpline.addPoint(kf->getTranslate());
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466 | mRotationSpline.addPoint(kf->getRotation());
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467 | mScaleSpline.addPoint(kf->getScale());
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468 | }
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469 |
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470 | mPositionSpline.recalcTangents();
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471 | mRotationSpline.recalcTangents();
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472 | mScaleSpline.recalcTangents();
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473 |
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474 |
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475 | mSplineBuildNeeded = false;
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476 | }
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477 |
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478 | //---------------------------------------------------------------------
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479 | void NodeAnimationTrack::setUseShortestRotationPath(bool useShortestPath)
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480 | {
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481 | mUseShortestRotationPath = useShortestPath ;
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482 | }
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483 |
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484 | //---------------------------------------------------------------------
|
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485 | bool NodeAnimationTrack::getUseShortestRotationPath() const
|
---|
486 | {
|
---|
487 | return mUseShortestRotationPath ;
|
---|
488 | }
|
---|
489 | //---------------------------------------------------------------------
|
---|
490 | void NodeAnimationTrack::_keyFrameDataChanged(void) const
|
---|
491 | {
|
---|
492 | mSplineBuildNeeded = true;
|
---|
493 | }
|
---|
494 | //---------------------------------------------------------------------
|
---|
495 | bool NodeAnimationTrack::hasNonZeroKeyFrames(void) const
|
---|
496 | {
|
---|
497 | KeyFrameList::const_iterator i = mKeyFrames.begin();
|
---|
498 | for (; i != mKeyFrames.end(); ++i)
|
---|
499 | {
|
---|
500 | // look for keyframes which have any component which is non-zero
|
---|
501 | // Since exporters can be a little inaccurate sometimes we use a
|
---|
502 | // tolerance value rather than looking for nothing
|
---|
503 | TransformKeyFrame* kf = static_cast<TransformKeyFrame*>(*i);
|
---|
504 | Vector3 trans = kf->getTranslate();
|
---|
505 | Vector3 scale = kf->getScale();
|
---|
506 | Vector3 axis;
|
---|
507 | Radian angle;
|
---|
508 | kf->getRotation().ToAngleAxis(angle, axis);
|
---|
509 | Real tolerance = 1e-3f;
|
---|
510 | if (!trans.positionEquals(Vector3::ZERO, tolerance) ||
|
---|
511 | !scale.positionEquals(Vector3::UNIT_SCALE, tolerance) ||
|
---|
512 | !Math::RealEqual(angle.valueRadians(), 0.0f, tolerance))
|
---|
513 | {
|
---|
514 | return true;
|
---|
515 | }
|
---|
516 |
|
---|
517 | }
|
---|
518 |
|
---|
519 | return false;
|
---|
520 | }
|
---|
521 | //---------------------------------------------------------------------
|
---|
522 | void NodeAnimationTrack::optimise(void)
|
---|
523 | {
|
---|
524 | // Eliminate duplicate keyframes from 2nd to penultimate keyframe
|
---|
525 | // NB only eliminate middle keys from sequences of 5+ identical keyframes
|
---|
526 | // since we need to preserve the boundary keys in place, and we need
|
---|
527 | // 2 at each end to preserve tangents for spline interpolation
|
---|
528 | Vector3 lasttrans;
|
---|
529 | Vector3 lastscale;
|
---|
530 | Quaternion lastorientation;
|
---|
531 | KeyFrameList::iterator i = mKeyFrames.begin();
|
---|
532 | Radian quatTolerance(1e-3f);
|
---|
533 | std::list<unsigned short> removeList;
|
---|
534 | unsigned short k = 0;
|
---|
535 | ushort dupKfCount = 0;
|
---|
536 | for (; i != mKeyFrames.end(); ++i, ++k)
|
---|
537 | {
|
---|
538 | TransformKeyFrame* kf = static_cast<TransformKeyFrame*>(*i);
|
---|
539 | Vector3 newtrans = kf->getTranslate();
|
---|
540 | Vector3 newscale = kf->getScale();
|
---|
541 | Quaternion neworientation = kf->getRotation();
|
---|
542 | // Ignore first keyframe; now include the last keyframe as we eliminate
|
---|
543 | // only k-2 in a group of 5 to ensure we only eliminate middle keys
|
---|
544 | if (i != mKeyFrames.begin() &&
|
---|
545 | newtrans.positionEquals(lasttrans) &&
|
---|
546 | newscale.positionEquals(lastscale) &&
|
---|
547 | neworientation.equals(lastorientation, quatTolerance))
|
---|
548 | {
|
---|
549 | ++dupKfCount;
|
---|
550 |
|
---|
551 | // 4 indicates this is the 5th duplicate keyframe
|
---|
552 | if (dupKfCount == 4)
|
---|
553 | {
|
---|
554 | // remove the 'middle' keyframe
|
---|
555 | removeList.push_back(k-2);
|
---|
556 | --dupKfCount;
|
---|
557 | }
|
---|
558 | }
|
---|
559 | else
|
---|
560 | {
|
---|
561 | // reset
|
---|
562 | dupKfCount = 0;
|
---|
563 | lasttrans = newtrans;
|
---|
564 | lastscale = newscale;
|
---|
565 | lastorientation = neworientation;
|
---|
566 | }
|
---|
567 | }
|
---|
568 |
|
---|
569 | // Now remove keyframes, in reverse order to avoid index revocation
|
---|
570 | std::list<unsigned short>::reverse_iterator r = removeList.rbegin();
|
---|
571 | for (; r!= removeList.rend(); ++r)
|
---|
572 | {
|
---|
573 | removeKeyFrame(*r);
|
---|
574 | }
|
---|
575 |
|
---|
576 |
|
---|
577 | }
|
---|
578 | //--------------------------------------------------------------------------
|
---|
579 | KeyFrame* NodeAnimationTrack::createKeyFrameImpl(Real time)
|
---|
580 | {
|
---|
581 | return new TransformKeyFrame(this, time);
|
---|
582 | }
|
---|
583 | //--------------------------------------------------------------------------
|
---|
584 | TransformKeyFrame* NodeAnimationTrack::createNodeKeyFrame(Real timePos)
|
---|
585 | {
|
---|
586 | return static_cast<TransformKeyFrame*>(createKeyFrame(timePos));
|
---|
587 | }
|
---|
588 | //--------------------------------------------------------------------------
|
---|
589 | TransformKeyFrame* NodeAnimationTrack::getNodeKeyFrame(unsigned short index) const
|
---|
590 | {
|
---|
591 | return static_cast<TransformKeyFrame*>(getKeyFrame(index));
|
---|
592 | }
|
---|
593 | //--------------------------------------------------------------------------
|
---|
594 | VertexAnimationTrack::VertexAnimationTrack(Animation* parent,
|
---|
595 | unsigned short handle, VertexAnimationType animType)
|
---|
596 | : AnimationTrack(parent, handle), mAnimationType(animType)
|
---|
597 | {
|
---|
598 | }
|
---|
599 | //--------------------------------------------------------------------------
|
---|
600 | VertexAnimationTrack::VertexAnimationTrack(Animation* parent, unsigned short handle,
|
---|
601 | VertexAnimationType animType, VertexData* targetData, TargetMode target)
|
---|
602 | : AnimationTrack(parent, handle), mAnimationType(animType),
|
---|
603 | mTargetVertexData(targetData), mTargetMode(target)
|
---|
604 | {
|
---|
605 | }
|
---|
606 | //--------------------------------------------------------------------------
|
---|
607 | VertexMorphKeyFrame* VertexAnimationTrack::createVertexMorphKeyFrame(Real timePos)
|
---|
608 | {
|
---|
609 | if (mAnimationType != VAT_MORPH)
|
---|
610 | {
|
---|
611 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
|
---|
612 | "Morph keyframes can only be created on vertex tracks of type morph.",
|
---|
613 | "VertexAnimationTrack::createVertexMorphKeyFrame");
|
---|
614 | }
|
---|
615 | return static_cast<VertexMorphKeyFrame*>(createKeyFrame(timePos));
|
---|
616 | }
|
---|
617 | //--------------------------------------------------------------------------
|
---|
618 | VertexPoseKeyFrame* VertexAnimationTrack::createVertexPoseKeyFrame(Real timePos)
|
---|
619 | {
|
---|
620 | if (mAnimationType != VAT_POSE)
|
---|
621 | {
|
---|
622 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
|
---|
623 | "Pose keyframes can only be created on vertex tracks of type pose.",
|
---|
624 | "VertexAnimationTrack::createVertexPoseKeyFrame");
|
---|
625 | }
|
---|
626 | return static_cast<VertexPoseKeyFrame*>(createKeyFrame(timePos));
|
---|
627 | }
|
---|
628 | //--------------------------------------------------------------------------
|
---|
629 | void VertexAnimationTrack::apply(Real timePos, Real weight, bool accumulate,
|
---|
630 | Real scale)
|
---|
631 | {
|
---|
632 | applyToVertexData(mTargetVertexData, timePos, weight);
|
---|
633 | }
|
---|
634 | //--------------------------------------------------------------------------
|
---|
635 | void VertexAnimationTrack::applyToVertexData(VertexData* data,
|
---|
636 | Real timePos, Real weight, const PoseList* poseList)
|
---|
637 | {
|
---|
638 | // Get keyframes
|
---|
639 | KeyFrame *kf1, *kf2;
|
---|
640 | Real t = getKeyFramesAtTime(timePos, &kf1, &kf2);
|
---|
641 |
|
---|
642 | if (mAnimationType == VAT_MORPH)
|
---|
643 | {
|
---|
644 | VertexMorphKeyFrame* vkf1 = static_cast<VertexMorphKeyFrame*>(kf1);
|
---|
645 | VertexMorphKeyFrame* vkf2 = static_cast<VertexMorphKeyFrame*>(kf2);
|
---|
646 |
|
---|
647 | if (mTargetMode == TM_HARDWARE)
|
---|
648 | {
|
---|
649 | // If target mode is hardware, need to bind our 2 keyframe buffers,
|
---|
650 | // one to main pos, one to morph target texcoord
|
---|
651 | assert(!data->hwAnimationDataList.empty() &&
|
---|
652 | "Haven't set up hardware vertex animation elements!");
|
---|
653 |
|
---|
654 | // no use for TempBlendedBufferInfo here btw
|
---|
655 | // NB we assume that position buffer is unshared
|
---|
656 | // VertexDeclaration::getAutoOrganisedDeclaration should see to that
|
---|
657 | const VertexElement* posElem =
|
---|
658 | data->vertexDeclaration->findElementBySemantic(VES_POSITION);
|
---|
659 | // Set keyframe1 data as original position
|
---|
660 | data->vertexBufferBinding->setBinding(
|
---|
661 | posElem->getSource(), vkf1->getVertexBuffer());
|
---|
662 | // Set keyframe2 data as derived
|
---|
663 | data->vertexBufferBinding->setBinding(
|
---|
664 | data->hwAnimationDataList[0].targetVertexElement->getSource(),
|
---|
665 | vkf2->getVertexBuffer());
|
---|
666 | // save T for use later
|
---|
667 | data->hwAnimationDataList[0].parametric = t;
|
---|
668 |
|
---|
669 | }
|
---|
670 | else
|
---|
671 | {
|
---|
672 | // If target mode is software, need to software interpolate each vertex
|
---|
673 |
|
---|
674 | Mesh::softwareVertexMorph(
|
---|
675 | t, vkf1->getVertexBuffer(), vkf2->getVertexBuffer(), data);
|
---|
676 | }
|
---|
677 | }
|
---|
678 | else
|
---|
679 | {
|
---|
680 | // Pose
|
---|
681 |
|
---|
682 | VertexPoseKeyFrame* vkf1 = static_cast<VertexPoseKeyFrame*>(kf1);
|
---|
683 | VertexPoseKeyFrame* vkf2 = static_cast<VertexPoseKeyFrame*>(kf2);
|
---|
684 |
|
---|
685 | // For each pose reference in key 1, we need to locate the entry in
|
---|
686 | // key 2 and interpolate the influence
|
---|
687 | const VertexPoseKeyFrame::PoseRefList& poseList1 = vkf1->getPoseReferences();
|
---|
688 | const VertexPoseKeyFrame::PoseRefList& poseList2 = vkf2->getPoseReferences();
|
---|
689 | for (VertexPoseKeyFrame::PoseRefList::const_iterator p1 = poseList1.begin();
|
---|
690 | p1 != poseList1.end(); ++p1)
|
---|
691 | {
|
---|
692 | Real startInfluence = p1->influence;
|
---|
693 | Real endInfluence = 0;
|
---|
694 | // Search for entry in keyframe 2 list (if not there, will be 0)
|
---|
695 | for (VertexPoseKeyFrame::PoseRefList::const_iterator p2 = poseList2.begin();
|
---|
696 | p2 != poseList2.end(); ++p2)
|
---|
697 | {
|
---|
698 | if (p1->poseIndex == p2->poseIndex)
|
---|
699 | {
|
---|
700 | endInfluence = p2->influence;
|
---|
701 | break;
|
---|
702 | }
|
---|
703 | }
|
---|
704 | // Interpolate influence
|
---|
705 | Real influence = startInfluence + t*(endInfluence - startInfluence);
|
---|
706 | // Scale by animation weight
|
---|
707 | influence = weight * influence;
|
---|
708 | // Get pose
|
---|
709 | assert (p1->poseIndex <= poseList->size());
|
---|
710 | Pose* pose = (*poseList)[p1->poseIndex];
|
---|
711 | // apply
|
---|
712 | applyPoseToVertexData(pose, data, influence);
|
---|
713 | }
|
---|
714 | // Now deal with any poses in key 2 which are not in key 1
|
---|
715 | for (VertexPoseKeyFrame::PoseRefList::const_iterator p2 = poseList2.begin();
|
---|
716 | p2 != poseList2.end(); ++p2)
|
---|
717 | {
|
---|
718 | bool found = false;
|
---|
719 | for (VertexPoseKeyFrame::PoseRefList::const_iterator p1 = poseList1.begin();
|
---|
720 | p1 != poseList1.end(); ++p1)
|
---|
721 | {
|
---|
722 | if (p1->poseIndex == p2->poseIndex)
|
---|
723 | {
|
---|
724 | found = true;
|
---|
725 | break;
|
---|
726 | }
|
---|
727 | }
|
---|
728 | if (!found)
|
---|
729 | {
|
---|
730 | // Need to apply this pose too, scaled from 0 start
|
---|
731 | Real influence = t * p2->influence;
|
---|
732 | // Scale by animation weight
|
---|
733 | influence = weight * influence;
|
---|
734 | // Get pose
|
---|
735 | assert (p2->poseIndex <= poseList->size());
|
---|
736 | const Pose* pose = (*poseList)[p2->poseIndex];
|
---|
737 | // apply
|
---|
738 | applyPoseToVertexData(pose, data, influence);
|
---|
739 | }
|
---|
740 | } // key 2 iteration
|
---|
741 | } // morph or pose animation
|
---|
742 | }
|
---|
743 | //-----------------------------------------------------------------------------
|
---|
744 | void VertexAnimationTrack::applyPoseToVertexData(const Pose* pose,
|
---|
745 | VertexData* data, Real influence)
|
---|
746 | {
|
---|
747 | if (mTargetMode == TM_HARDWARE)
|
---|
748 | {
|
---|
749 | // Hardware
|
---|
750 | // If target mode is hardware, need to bind our pose buffer
|
---|
751 | // to a target texcoord
|
---|
752 | assert(!data->hwAnimationDataList.empty() &&
|
---|
753 | "Haven't set up hardware vertex animation elements!");
|
---|
754 | // no use for TempBlendedBufferInfo here btw
|
---|
755 | // Set pose target as required
|
---|
756 | size_t hwIndex = data->hwAnimDataItemsUsed++;
|
---|
757 | // If we try to use too many poses, ignore extras
|
---|
758 | if (hwIndex < data->hwAnimationDataList.size())
|
---|
759 | {
|
---|
760 | VertexData::HardwareAnimationData& animData = data->hwAnimationDataList[hwIndex];
|
---|
761 | data->vertexBufferBinding->setBinding(
|
---|
762 | animData.targetVertexElement->getSource(),
|
---|
763 | pose->_getHardwareVertexBuffer(data->vertexCount));
|
---|
764 | // save final influence in parametric
|
---|
765 | animData.parametric = influence;
|
---|
766 |
|
---|
767 | }
|
---|
768 |
|
---|
769 | }
|
---|
770 | else
|
---|
771 | {
|
---|
772 | // Software
|
---|
773 | Mesh::softwareVertexPoseBlend(influence, pose->getVertexOffsets(), data);
|
---|
774 | }
|
---|
775 |
|
---|
776 | }
|
---|
777 | //--------------------------------------------------------------------------
|
---|
778 | VertexMorphKeyFrame* VertexAnimationTrack::getVertexMorphKeyFrame(unsigned short index) const
|
---|
779 | {
|
---|
780 | if (mAnimationType != VAT_MORPH)
|
---|
781 | {
|
---|
782 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
|
---|
783 | "Morph keyframes can only be created on vertex tracks of type morph.",
|
---|
784 | "VertexAnimationTrack::getVertexMorphKeyFrame");
|
---|
785 | }
|
---|
786 |
|
---|
787 | return static_cast<VertexMorphKeyFrame*>(getKeyFrame(index));
|
---|
788 | }
|
---|
789 | //--------------------------------------------------------------------------
|
---|
790 | VertexPoseKeyFrame* VertexAnimationTrack::getVertexPoseKeyFrame(unsigned short index) const
|
---|
791 | {
|
---|
792 | if (mAnimationType != VAT_POSE)
|
---|
793 | {
|
---|
794 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS,
|
---|
795 | "Pose keyframes can only be created on vertex tracks of type pose.",
|
---|
796 | "VertexAnimationTrack::getVertexPoseKeyFrame");
|
---|
797 | }
|
---|
798 |
|
---|
799 | return static_cast<VertexPoseKeyFrame*>(getKeyFrame(index));
|
---|
800 | }
|
---|
801 | //--------------------------------------------------------------------------
|
---|
802 | KeyFrame* VertexAnimationTrack::createKeyFrameImpl(Real time)
|
---|
803 | {
|
---|
804 | switch(mAnimationType)
|
---|
805 | {
|
---|
806 | default:
|
---|
807 | case VAT_MORPH:
|
---|
808 | return new VertexMorphKeyFrame(this, time);
|
---|
809 | case VAT_POSE:
|
---|
810 | return new VertexPoseKeyFrame(this, time);
|
---|
811 | };
|
---|
812 |
|
---|
813 | }
|
---|
814 | //---------------------------------------------------------------------
|
---|
815 | bool VertexAnimationTrack::hasNonZeroKeyFrames(void) const
|
---|
816 | {
|
---|
817 | if (mAnimationType == VAT_MORPH)
|
---|
818 | {
|
---|
819 | return !mKeyFrames.empty();
|
---|
820 | }
|
---|
821 | else
|
---|
822 | {
|
---|
823 |
|
---|
824 | KeyFrameList::const_iterator i = mKeyFrames.begin();
|
---|
825 | for (; i != mKeyFrames.end(); ++i)
|
---|
826 | {
|
---|
827 | // look for keyframes which have a pose influence which is non-zero
|
---|
828 | const VertexPoseKeyFrame* kf = static_cast<const VertexPoseKeyFrame*>(*i);
|
---|
829 | VertexPoseKeyFrame::ConstPoseRefIterator poseIt
|
---|
830 | = kf->getPoseReferenceIterator();
|
---|
831 | while (poseIt.hasMoreElements())
|
---|
832 | {
|
---|
833 | const VertexPoseKeyFrame::PoseRef& poseRef = poseIt.getNext();
|
---|
834 | if (poseRef.influence > 0.0f)
|
---|
835 | return true;
|
---|
836 | }
|
---|
837 |
|
---|
838 | }
|
---|
839 |
|
---|
840 | return false;
|
---|
841 | }
|
---|
842 | }
|
---|
843 | //---------------------------------------------------------------------
|
---|
844 | void VertexAnimationTrack::optimise(void)
|
---|
845 | {
|
---|
846 | // TODO - remove sequences of duplicate pose references?
|
---|
847 |
|
---|
848 |
|
---|
849 | }
|
---|
850 |
|
---|
851 |
|
---|
852 | }
|
---|
853 |
|
---|