public static void SplitClip(AnimationTrack track, AnimationClip clip, int frame)
{
if (frame <= clip.BeginFrame || frame > clip.EndFrame)
{
throw new InvalidOperationException();
}
var index = track.Clips.IndexOf(clip);
var newClip = clip.Clone();
newClip.BeginFrame = frame;
newClip.EndFrame = clip.EndFrame;
newClip.InFrame = frame - clip.BeginFrame + clip.InFrame;
Core.Operations.SetProperty.Perform(clip, nameof(AnimationClip.EndFrame), frame);
Core.Operations.InsertIntoList <AnimationClipList, AnimationClip> .Perform(track.Clips, index + 1, newClip);
}
public AnimationClip GenerateMountAnimation(AnimationClip mountAnimation, AnimationClip riderAnimation)
{
Vector3 translationOffset = new Vector3((float)_animationSettings.Translation.X.Value, (float)_animationSettings.Translation.Y.Value, (float)_animationSettings.Translation.Z.Value);
Vector3 rotationOffset = new Vector3((float)_animationSettings.Rotation.X.Value, (float)_animationSettings.Rotation.Y.Value, (float)_animationSettings.Rotation.Z.Value);
var rotationOffsetMatrix = Quaternion.CreateFromYawPitchRoll(MathHelper.ToRadians(rotationOffset.X), MathHelper.ToRadians(rotationOffset.Y), MathHelper.ToRadians(rotationOffset.Z));
var newRiderAnim = riderAnimation.Clone();
newRiderAnim.MergeStaticAndDynamicFrames();
View3D.Animation.AnimationEditor.LoopAnimation(newRiderAnim, (int)_animationSettings.LoopCounter.Value);
// Resample
if (_animationSettings.FitAnimation)
{
newRiderAnim = View3D.Animation.AnimationEditor.ReSample(_riderSkeleton, newRiderAnim, mountAnimation.DynamicFrames.Count, mountAnimation.PlayTimeInSec);
}
newRiderAnim.StaticFrame = null;
var maxFrameCount = Math.Min(mountAnimation.DynamicFrames.Count, newRiderAnim.DynamicFrames.Count);
for (int i = 0; i < maxFrameCount; i++)
{
var mountFrame = AnimationSampler.Sample(i, 0, _mountSkeleton, new List <AnimationClip> {
mountAnimation
});
var mountBoneWorldMatrix = _mountVertexPositionResolver.GetVertexTransformWorld(mountFrame, _mountVertexId);
mountBoneWorldMatrix.Decompose(out var _, out var mountVertexRot, out var mountVertexPos);
// Make sure the rider moves along in the world with the same speed as the mount
var mountMovement = mountFrame.BoneTransforms[0].Translation;
newRiderAnim.DynamicFrames[i].Position[0] = mountMovement;// mountAnimation.DynamicFrames[i].Position[0];
newRiderAnim.DynamicFrames[i].Rotation[0] = Quaternion.Identity;
var origianlRotation = Quaternion.Identity;
if (_animationSettings.KeepRiderRotation)
{
var riderFrame = AnimationSampler.Sample(i, 0, _riderSkeleton, new List <AnimationClip> {
newRiderAnim
});
var riderBoneWorldmatrix = riderFrame.GetSkeletonAnimatedWorld(_riderSkeleton, _riderBoneIndex);
riderBoneWorldmatrix.Decompose(out var _, out origianlRotation, out var _);
}
var originalPosition = newRiderAnim.DynamicFrames[i].Position[_riderBoneIndex];
var originalRotation = newRiderAnim.DynamicFrames[i].Rotation[_riderBoneIndex];
var newRiderPosition = mountVertexPos + translationOffset - mountFrame.BoneTransforms[0].Translation;
var newRiderRotation = Quaternion.Multiply(Quaternion.Multiply(mountVertexRot, origianlRotation), rotationOffsetMatrix);
var riderPositionDiff = newRiderPosition - originalPosition;
var riderRotationDiff = newRiderRotation * Quaternion.Inverse(originalRotation);
newRiderAnim.DynamicFrames[i].Position[_riderBoneIndex] = newRiderPosition;
newRiderAnim.DynamicFrames[i].Rotation[_riderBoneIndex] = newRiderRotation;
// Find all the bones at the same level (normally attachmentpoints) and move them as well
var parentBoneIndex = _riderSkeleton.GetParentBone(_riderBoneIndex);
if (parentBoneIndex != -1)
{
var childNodes = _riderSkeleton.GetChildBones(parentBoneIndex);
for (int boneId = 0; boneId < childNodes.Count; boneId++)
{
var id = childNodes[boneId];
if (id == _riderBoneIndex)
{
continue;
}
newRiderAnim.DynamicFrames[i].Position[id] += riderPositionDiff;
newRiderAnim.DynamicFrames[i].Rotation[id] = riderRotationDiff * newRiderAnim.DynamicFrames[i].Rotation[id];
}
}
}
return(newRiderAnim);
}