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Workaround: Collada loader combines alot of animations each affecting a single node into a combined animation. The stupidity of some export plugins knows no bounds. 

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@812 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
pull/1/head
ulfjorensen 2010-09-04 15:36:38 +00:00
parent 693a3a039d
commit 960f7defd7
1 changed files with 52 additions and 0 deletions
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52
code/ColladaLoader.cpp
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@ -793,6 +793,58 @@ void ColladaLoader::StoreAnimations( aiScene* pScene, const ColladaParser& pPars
// recursivly collect all animations from the collada scene
StoreAnimations( pScene, pParser, &pParser.mAnims, "");
// catch special case: many animations with the same length, each affecting only a single node.
// we need to unite all those single-node-anims to a proper combined animation
for( size_t a = 0; a < mAnims.size(); ++a)
{
aiAnimation* templateAnim = mAnims[a];
if( templateAnim->mNumChannels == 1)
{
// search for other single-channel-anims with the same duration
std::vector<size_t> collectedAnimIndices;
for( size_t b = a+1; b < mAnims.size(); ++b)
{
aiAnimation* other = mAnims[b];
if( other->mNumChannels == 1 && other->mDuration == templateAnim->mDuration && other->mTicksPerSecond == templateAnim->mTicksPerSecond )
collectedAnimIndices.push_back( b);
}
// if there are other animations which fit the template anim, combine all channels into a single anim
if( !collectedAnimIndices.empty() )
{
aiAnimation* combinedAnim = new aiAnimation();
combinedAnim->mName = aiString( std::string( "combinedAnim_") + char( '0' + a));
combinedAnim->mDuration = templateAnim->mDuration;
combinedAnim->mTicksPerSecond = templateAnim->mTicksPerSecond;
combinedAnim->mNumChannels = collectedAnimIndices.size() + 1;
combinedAnim->mChannels = new aiNodeAnim*[combinedAnim->mNumChannels];
// add the template anim as first channel by moving its aiNodeAnim to the combined animation
combinedAnim->mChannels[0] = templateAnim->mChannels[0];
templateAnim->mChannels[0] = NULL;
delete templateAnim;
// combined animation replaces template animation in the anim array
mAnims[a] = combinedAnim;
// move the memory of all other anims to the combined anim and erase them from the source anims
for( size_t b = 0; b < collectedAnimIndices.size(); ++b)
{
aiAnimation* srcAnimation = mAnims[collectedAnimIndices[b]];
combinedAnim->mChannels[1 + b] = srcAnimation->mChannels[0];
srcAnimation->mChannels[0] = NULL;
delete srcAnimation;
}
// in a second go, delete all the single-channel-anims that we've stripped from their channels
// back to front to preserve indices - you know, removing an element from a vector moves all elements behind the removed one
while( !collectedAnimIndices.empty() )
{
mAnims.erase( mAnims.begin() + collectedAnimIndices.back());
collectedAnimIndices.pop_back();
}
}
}
}
// now store all anims in the scene
if( !mAnims.empty())
{