public AnimExporter(USkeleton skeleton, UAnimSequence?animSequence = null)
{
AnimSequences = new List <Anim>();
AnimName = animSequence?.Owner?.Name ?? animSequence?.Name ?? skeleton.Owner?.Name ?? skeleton.Name;
var anim = skeleton.ConvertAnims(animSequence);
if (anim.Sequences.Count == 0)
{
// empty CAnimSet
return;
}
// Determine if CAnimSet will save animations as separate psa files, or all at once
var originalAnim = anim.GetPrimaryAnimObject();
if (originalAnim == anim.OriginalAnim || anim.Sequences.Count == 1)
{
// Export all animations in a single file
DoExportPsa(anim, 0);
}
else
{
//var skeleton = (USkeleton) anim.OriginalAnim;
// Export animations separately, this will happen only when CAnimSet has
// a few sequences (but more than one)
var tempAnimSet = new CAnimSet();
tempAnimSet.CopyAllButSequences(anim);
// Now we have a copy of AnimSet, let's set up Sequences array to a single
// item and export one-by-one
for (int animIndex = 0; animIndex < anim.Sequences.Count; animIndex++)
{
var seq = anim.Sequences[animIndex];
tempAnimSet.Sequences.Clear();
tempAnimSet.Sequences.Add(seq);
// Do the export, pass UAnimSequence as the "main" object, so it will be
// used as psa file name.
DoExportPsa(tempAnimSet, animIndex);
}
// Ensure TempAnimSet destructor will not release Sequences as they are owned by Anim object
tempAnimSet.Sequences.Clear();
}
}
public static bool TryConvert(this USkeleton originalSkeleton, out List <CSkelMeshBone> bones)
{
bones = new List <CSkelMeshBone>();
for (var i = 0; i < originalSkeleton.ReferenceSkeleton.FinalRefBoneInfo.Length; i++)
{
var skeletalMeshBone = new CSkelMeshBone
{
Name = originalSkeleton.ReferenceSkeleton.FinalRefBoneInfo[i].Name,
ParentIndex = originalSkeleton.ReferenceSkeleton.FinalRefBoneInfo[i].ParentIndex,
Position = originalSkeleton.ReferenceSkeleton.FinalRefBonePose[i].Translation,
Orientation = originalSkeleton.ReferenceSkeleton.FinalRefBonePose[i].Rotation,
};
if (i >= 1) // fix skeleton; all bones but 0
{
skeletalMeshBone.Orientation.Conjugate();
}
bones.Add(skeletalMeshBone);
}
return(true);
}
public MeshExporter(USkeleton originalSkeleton)
{
MeshLods = new List <Mesh>();
MeshName = originalSkeleton.Owner?.Name ?? originalSkeleton.Name;
if (!originalSkeleton.TryConvert(out var bones) || bones.Count == 0)
{
Log.Logger.Warning($"Skeleton '{MeshName}' has no bone");
return;
}
using var Ar = new FArchiveWriter();
var mainHdr = new VChunkHeader {
TypeFlag = Constants.PSK_VERSION
};
Ar.SerializeChunkHeader(mainHdr, "ACTRHEAD");
ExportSkeletonData(Ar, bones);
MeshLods.Add(new Mesh($"{MeshName}.psk", Ar.GetBuffer(), new List <MaterialExporter>()));
}
public static CAnimSet ConvertAnims(this USkeleton skeleton, UAnimSequence?animSequence)
{
var animSet = new CAnimSet(skeleton);
// Copy bone names
var numBones = skeleton.ReferenceSkeleton.FinalRefBoneInfo.Length;
Trace.Assert(skeleton.BoneTree.Length == numBones);
animSet.TrackBoneNames = new FName[numBones];
animSet.BonePositions = new CSkeletonBonePosition[numBones];
animSet.BoneModes = new EBoneRetargetingMode[numBones];
for (var boneIndex = 0; boneIndex < numBones; boneIndex++)
{
// Store bone name
animSet.TrackBoneNames[boneIndex] = skeleton.ReferenceSkeleton.FinalRefBoneInfo[boneIndex].Name;
// Store skeleton's bone transform
CSkeletonBonePosition bonePosition;
var transform = skeleton.ReferenceSkeleton.FinalRefBonePose[boneIndex];
bonePosition.Orientation = transform.Rotation;
bonePosition.Position = transform.Translation;
animSet.BonePositions[boneIndex] = bonePosition;
// Process bone retargeting mode
var boneMode = skeleton.BoneTree[boneIndex].TranslationRetargetingMode switch
{
EBoneTranslationRetargetingMode.Skeleton => EBoneRetargetingMode.Mesh,
EBoneTranslationRetargetingMode.Animation => EBoneRetargetingMode.Animation,
EBoneTranslationRetargetingMode.AnimationScaled => EBoneRetargetingMode.AnimationScaled,
EBoneTranslationRetargetingMode.AnimationRelative => EBoneRetargetingMode.AnimationRelative,
EBoneTranslationRetargetingMode.OrientAndScale => EBoneRetargetingMode.OrientAndScale,
_ => EBoneRetargetingMode.OrientAndScale //todo: other modes?
};
animSet.BoneModes[boneIndex] = boneMode;
}
// Check for NULL 'animSequence' only after CAnimSet is created: we're doing ConvertAnims(null) to create an empty AnimSet
if (animSequence == null)
{
return(animSet);
}
var numTracks = animSequence.GetNumTracks();
// Store UAnimSequence in 'OriginalAnims' array, we just need it from time to time
//OriginalAnims.Add(animSequence);
// Create CAnimSequence
var dst = new CAnimSequence(animSequence);
animSet.Sequences.Add(dst);
dst.Name = animSequence.Name;
dst.NumFrames = animSequence.NumFrames;
dst.Rate = animSequence.NumFrames / animSequence.SequenceLength * animSequence.RateScale;
dst.bAdditive = animSequence.AdditiveAnimType != AAT_None;
// Store information for animation retargeting.
// Reference: UAnimSequence::GetRetargetTransforms()
FTransform[]? retargetTransforms = null;
if (animSequence.RetargetSource.IsNone && animSequence.RetargetSourceAssetReferencePose is { Length : > 0 })
