Glyphs have proven to be a powerful visualization technique for general tensor fields modeling physical phenomena
such as diffusion or the derivative of flow fields. Most glyph constructions, however, do not provide a way
of considering the temporal derivative, which is generally nonzero in non-stationary vector fields. This derivative
offers a deeper understanding of features in time-dependent vector fields. We introduce an extension to 2D and 3D
tensor glyph design that additionally encodes the temporal information of velocities, and thus makes it possible to
represent time-dependent Jacobians. At the same time, a certain set of requirements for general tensor glyphs is
fulfilled, such that the new method provides a visualization of the steadiness or unsteadiness of a vector field at a
given instance of time
