vrm spring bone

[Ander456]

Describe the bug spring bone data chain only add first child chain; so the other will not be effect

Screenshots, log

UnrealEngine Version: [UE5.3]

Additional context for some reason i try to fix the bug use this code replace origin // // 使用堆栈代替递归处理所有子骨骼 // struct BoneStackItem { // int32 BoneIndex; // int32 Depth; // }; // // TArray<BoneStackItem> BoneStack; // for (int32 ChildIndex : Children) { // BoneStack.Add({ChildIndex, 1}); // } // // while (BoneStack.Num() > 0) { // BoneStackItem CurrentItem = BoneStack.Pop(); // if (CurrentItem.Depth >= 100) { // continue; // } // // TArray CurrentChildren; // VRMUtil::GetDirectChildBones(VRMGetRefSkeleton(skeletalMesh), CurrentItem.BoneIndex, CurrentChildren); // if (CurrentChildren.Num() <= 0) // { // continue; // } // // auto& CurrentSData = chain.AddDefaulted_GetRef(); // CurrentSData.boneIndex = CurrentItem.BoneIndex; // CurrentSData.boneName = *RefSkeleton.GetBoneName(CurrentSData.boneIndex).ToString(); // // if (CurrentChildren.Num() > 0) { // CurrentSData.m_boneAxis = RefSkeletonTransform[CurrentChildren[0]].GetLocation(); // } else { // CurrentSData.m_boneAxis = RefSkeletonTransform[CurrentSData.boneIndex].GetLocation() * 0.7f; // } // // for (int32 ChildIndex : CurrentChildren) { // BoneStack.Add({ChildIndex, CurrentItem.Depth + 1}); // } // } // } // }

result the strap bone 012 chain is work. but others sway strongly suddenly.

[ruyo]

Hi. The current VRM4U does not support the branching sway bone. If you really want to use UE, please change the setting of the sway bone.