供養.cs

            //var matrix = Matrix4x4.identity;
            //matrix.SetTRS(bones[1].localPosition, bones[1].localRotation, bones[1].localScale);

            var boneTrans = smr.bones.Select(bt => Export(bt)).ToArray();
            var boneIndices = boneTrans.Select(t => t.Index).ToArray();

            int? matricesAccIndex = null;
            if (mesh.bindposes.Length > 0)
            {
                var localToWorldT = Matrix4x4.Translate(trans.position);
                var localToWorldR = Matrix4x4.Rotate(trans.rotation);
                var localToWorldS = Matrix4x4.Scale(trans.lossyScale);

                if (trans.localToWorldMatrix != Matrix4x4.TRS(trans.position, trans.rotation, trans.lossyScale))
                {
                    throw new Exception();
                }

                var calculatedBindposes = boneTrans.Select((bt, i) =>
                {
                    var boneWorldToLocalT = Matrix4x4.Translate(bt.Value.position).inverse;
                    var worldToLocalRot = Matrix4x4.Rotate(Quaternion.Inverse(bt.Value.rotation));
                    var q = bt.Value.lossyScale;
                    var worldToLocalScale = Matrix4x4.Scale(new Vector3(1f / q.x, 1f / q.y, 1f / q.z));

                    var bindPoseT = CoordUtils.GetTranslate(boneWorldToLocalT * localToWorldT);
                    var bindPoseRot = CoordUtils.GetRotation(worldToLocalRot * localToWorldR);
                    var bindPoseScale = CoordUtils.GetScale(worldToLocalScale * localToWorldS);

                    var b = Matrix4x4.TRS(bindPoseT, bindPoseRot, bindPoseScale);
                    Debug.Log($"==> {mesh.bindposes[i]} ??? {mesh.bindposes[i]}");

                    return new BindposeTRS {
                        Translate = bindPoseT,
                        Rotation = bindPoseRot,
                        Scale = bindPoseScale,
                    };
                }).ToArray();
                if (mesh.bindposes.Count() != calculatedBindposes.Count())
                {
                    throw new Exception($"Number of bindposes: original({mesh.bindposes.Count()}) != calculated({calculatedBindposes.Count()})");
                }
                foreach (var (b, i) in mesh.bindposes.Select((b, i) => (b, i)))
                {
                    var cb = calculatedBindposes[i];
                    if (!CoordUtils.GetTranslate(b).Approximately(cb.Translate))
                    {
                        Debug.LogWarning($"{i}({boneTrans[i].Value.name}) => {CoordUtils.GetTranslate(b)} != {cb.Translate}");
                    }
                    if (CoordUtils.GetRotation(b) != cb.Rotation)
                    {
                        // 
                    }
                }