public BoneAnimation LoadBoneAnimation(Assimp.Scene aScene, Assimp.Node aNode, BoneAnimation parent)
{
var boneAnimation = new BoneAnimation()
{
Parent = parent,
Children = new List <BoneAnimation>(),
Positions = new List <Vector3>(),
Rotations = new List <Quaternion>(),
Scales = new List <Vector3>()
};
boneAnimation.Name = aNode.Name;
var animationChanel = aScene.Animations[0].NodeAnimationChannels.Where(n => n.NodeName == boneAnimation.Name).FirstOrDefault();
if (animationChanel != null)
{
boneAnimation.IsAnimate = true;
foreach (var aScale in animationChanel.ScalingKeys)
{
var scale = new Vector3(aScale.Value.X, aScale.Value.Y, aScale.Value.Z);
boneAnimation.Scales.Add(scale);
}
foreach (var aRotation in animationChanel.RotationKeys)
{
var rotation = new Quaternion(aRotation.Value.X, aRotation.Value.Y, aRotation.Value.Z, aRotation.Value.W);
boneAnimation.Rotations.Add(rotation);
}
foreach (var aTranslate in animationChanel.PositionKeys)
{
var translate = new Vector3(aTranslate.Value.X, aTranslate.Value.Y, aTranslate.Value.Z);
boneAnimation.Positions.Add(translate);
}
}
else
{
boneAnimation.IsAnimate = false;
boneAnimation.Transformation = Matrix.Transpose(AssimpHelper.MatrixAssimpToXna(aNode.Transform));
}
foreach (var child in aNode.Children)
{
boneAnimation.Children.Add(LoadBoneAnimation(aScene, child, boneAnimation));
}
BoneAnimations.Add(boneAnimation);
return(boneAnimation);
}
Bone GetBone(Mesh mesh, Assimp.Bone aBone)
{
var bone = mesh.Bones.FirstOrDefault(b => b.Name == aBone.Name);
if (bone == null)
{
var offsetMatrix = aBone.OffsetMatrix;
offsetMatrix.Transpose();
bone = new Bone();
bone.Name = aBone.Name;
bone.Index = mesh.Bones.Count;
bone.Offset = AssimpHelper.MatrixAssimpToXna(offsetMatrix);
bone.OffsetInverse = Matrix.Invert(AssimpHelper.MatrixAssimpToXna(offsetMatrix));
mesh.Bones.Add(bone);
}
return(bone);
}
