private void ImportAnimation(Assimp.Node node, GameObject go, Quaternion cumulRotation)
{
Assimp.Animation animation = scene.Animations[0];
if ((GlobalState.Animation.fps / (float)animation.TicksPerSecond) * animation.DurationInTicks > GlobalState.Animation.EndFrame)
{
GlobalState.Animation.EndFrame = Mathf.CeilToInt(GlobalState.Animation.fps / (float)animation.TicksPerSecond * (float)animation.DurationInTicks) + 1;
}
Assimp.NodeAnimationChannel nodeChannel = animation.NodeAnimationChannels.Find(x => x.NodeName == node.Name);
if (nodeChannel == null)
{
nodeChannel = animation.NodeAnimationChannels.Find(x => x.NodeName.Split('_')[0] == node.Name);
}
if (null != nodeChannel)
{
if (nodeChannel.PositionKeyCount < 2 && nodeChannel.RotationKeyCount < 2)
{
return;
}
AnimationSet animationSet = new AnimationSet(go);
animationSet.ComputeCache();
if (nodeChannel.PositionKeyCount > 1 || nodeChannel.RotationKeyCount == nodeChannel.PositionKeyCount)
{
foreach (Assimp.VectorKey vectorKey in nodeChannel.PositionKeys)
{
int frame = Mathf.CeilToInt((float)vectorKey.Time * GlobalState.Animation.fps / (float)animation.TicksPerSecond) + 1;
animationSet.curves[AnimatableProperty.PositionX].AddKey(new AnimationKey(frame, vectorKey.Value.X, Interpolation.Bezier));
animationSet.curves[AnimatableProperty.PositionY].AddKey(new AnimationKey(frame, vectorKey.Value.Y, Interpolation.Bezier));
animationSet.curves[AnimatableProperty.PositionZ].AddKey(new AnimationKey(frame, vectorKey.Value.Z, Interpolation.Bezier));
}
}
foreach (Assimp.VectorKey vectorKey in nodeChannel.ScalingKeys)
{
int frame = Mathf.CeilToInt((float)vectorKey.Time * GlobalState.Animation.fps / (float)animation.TicksPerSecond) + 1;
animationSet.curves[AnimatableProperty.ScaleX].AddKey(new AnimationKey(frame, vectorKey.Value.X, Interpolation.Bezier));
animationSet.curves[AnimatableProperty.ScaleY].AddKey(new AnimationKey(frame, vectorKey.Value.Y, Interpolation.Bezier));
animationSet.curves[AnimatableProperty.ScaleZ].AddKey(new AnimationKey(frame, vectorKey.Value.Z, Interpolation.Bezier));
}
Vector3 previousRotation = Vector3.zero;
foreach (Assimp.QuaternionKey quaternionKey in nodeChannel.RotationKeys)
{
int frame = Mathf.RoundToInt((float)quaternionKey.Time * GlobalState.Animation.fps / (float)animation.TicksPerSecond) + 1;
Quaternion uQuaternion = new Quaternion(quaternionKey.Value.X, quaternionKey.Value.Y, quaternionKey.Value.Z, quaternionKey.Value.W);
uQuaternion = cumulRotation * uQuaternion * Quaternion.Inverse(cumulRotation);
Vector3 eulerValue = uQuaternion.eulerAngles;
eulerValue.x = previousRotation.x + Mathf.DeltaAngle(previousRotation.x, eulerValue.x);
eulerValue.y = previousRotation.y + Mathf.DeltaAngle(previousRotation.y, eulerValue.y);
eulerValue.z = previousRotation.z + Mathf.DeltaAngle(previousRotation.z, eulerValue.z);
animationSet.curves[AnimatableProperty.RotationX].AddKey(new AnimationKey(frame, eulerValue.x, Interpolation.Bezier));
animationSet.curves[AnimatableProperty.RotationY].AddKey(new AnimationKey(frame, eulerValue.y, Interpolation.Bezier));
animationSet.curves[AnimatableProperty.RotationZ].AddKey(new AnimationKey(frame, eulerValue.z, Interpolation.Bezier));
previousRotation = eulerValue;
}
GlobalState.Animation.SetObjectAnimations(go, animationSet);
}
}
