//ToDo : учет associate model? // GlobalTransform of the bone at the binding moment. // // (Comments from fbxcluster.h) // Transformation matrices. A link has three transformation matrices: // - Transform refers to the global initial transform of the geometry node(geometry is the attribute of the node) that contains the link node. // - TransformLink refers to global initial transform of the link(bone) node. // - TransformAssociateModel refers to the global initial transform of the associate model. // // For example, given a mesh binding with several bones(links), Transform is the global transform // of the mesh at the binding moment, TransformLink is the global transform of the bone(link) // at the binding moment, TransformAssociateModel is the global transform of the associate model // at the binding moment. FbxAMatrix GetInitialTransform() { if (cluster == null) { return(FbxMath.EvaluateGlobalTransform(Node)); } //Each cluster is associated with a FbxNode (bone) //cluster.GetLink().GetUniqueID() == Node.GetUniqueID(); //??? Учитывать ли AxisSystem? //??? Не совсем понятны отличаи globalMeshTransform == skin.GetGeometry().GetNode().EvaluateGlobalTransform(), от cluster.GetTransformMatrix() //matrix associated with the geometry node containing the link. (global transform of the mesh at the binding moment) FbxAMatrix globalMeshInitialTransform = new FbxAMatrix(); cluster.GetTransformMatrix(globalMeshInitialTransform); //Get matrix associated with the link node (bind pose, bone transform) at the binding moment FbxAMatrix boneInitialTransform = new FbxAMatrix(); cluster.GetTransformLinkMatrix(boneInitialTransform); //Дополнительная матрица которую cluster ассоциирует с Node - Трансформация в момент привязки. //bind pose matrix that is local for the mesh = Inverse(TransformMatrix) * TransformLinkMatrix FbxAMatrix localBindPose = (globalMeshInitialTransform.mul(geometryOffset).Inverse()).mul(boneInitialTransform); //globalMeshTransform * Inverse(globalMeshInitialTransform) * boneInitialTransform return(globalMeshTransform.mul(geometryOffset).mul(localBindPose)); }