void AnimationPlayer::GetInterpolatedPose(float time, SceneNode& sceneNode)
{
XMFLOAT4X4 toParentTransform;
Bone* bone = sceneNode.As<Bone>();
if (bone != nullptr)
{
mCurrentClip->GetInteropolatedTransform(time, *bone, toParentTransform);
}
else
{
toParentTransform = sceneNode.Transform();
}
XMMATRIX toRootTransform = (sceneNode.GetParent() != nullptr ? XMLoadFloat4x4(&toParentTransform) * XMLoadFloat4x4(&(mToRootTransforms.at(sceneNode.GetParent()))) : XMLoadFloat4x4(&toParentTransform));
XMStoreFloat4x4(&(mToRootTransforms[&sceneNode]), toRootTransform);
if (bone != nullptr)
{
XMStoreFloat4x4(&(mFinalTransforms[bone->Index()]), bone->OffsetTransformMatrix() * toRootTransform * XMLoadFloat4x4(&mInverseRootTransform));
}
for (auto& childNode : sceneNode.Children())
{
GetInterpolatedPose(time, *childNode);
}
}
void AnimationPlayer::GetBindPose(SceneNode& sceneNode)
{
XMMATRIX toParentTransform = sceneNode.TransformMatrix();
XMMATRIX toRootTransform = (sceneNode.GetParent() != nullptr ? toParentTransform * XMLoadFloat4x4(&(mToRootTransforms.at(sceneNode.GetParent()))) : toParentTransform);
XMStoreFloat4x4(&(mToRootTransforms[&sceneNode]), toRootTransform);
Bone* bone = sceneNode.As<Bone>();
if (bone != nullptr)
{
XMStoreFloat4x4(&(mFinalTransforms[bone->Index()]), bone->OffsetTransformMatrix() * toRootTransform * XMLoadFloat4x4(&mInverseRootTransform));
}
for (auto& childNode : sceneNode.Children())
{
GetBindPose(*childNode);
}
}
void Model::LoadSkeleton(std::fstream& fileStream, SceneNode* parentNode)
{
bool isSceneNode;
ModelDeSerializer::ReadAsBytes(fileStream, isSceneNode);
SceneNode* node;
if (isSceneNode)
{
node = new SceneNode(*this, fileStream);
}
else
{
std::string name;
ModelDeSerializer::ReadAsBytes(fileStream, name);
//find bone and do fixup
UINT boneIndex = mBoneIndexMapping[name];
node = mBones[boneIndex];
}
node->SetParent(parentNode);
if (parentNode != nullptr)
{
parentNode->Children().push_back(node);
}
else
{
mRootNode = node;
}
uint_t childCount;
ModelDeSerializer::ReadAsBytes(fileStream, childCount);
node->Children().reserve(childCount);
for (int i = 0; i < childCount; i++)
{
LoadSkeleton(fileStream, node);
}
}
void AnimationPlayer::GetBindPoseBottomUp(SceneNode& sceneNode)
{
XMMATRIX toRootTransform = sceneNode.TransformMatrix();
SceneNode* parentNode = sceneNode.GetParent();
while (parentNode != nullptr)
{
toRootTransform = toRootTransform * parentNode->TransformMatrix();
parentNode = parentNode->GetParent();
}
Bone* bone = sceneNode.As<Bone>();
if (bone != nullptr)
{
XMStoreFloat4x4(&(mFinalTransforms[bone->Index()]), bone->OffsetTransformMatrix() * toRootTransform * XMLoadFloat4x4(&mInverseRootTransform));
}
for (auto& childNode : sceneNode.Children())
{
GetBindPoseBottomUp(*childNode);
}
}
