  The viewing geometry of the polar CP Tuc that better explains its optical and
X-ray light curves is controversial. Previous modelling of white-light
polarimetric data considered the partial self-eclipse of an extended
inhomogeneous emitting region. Alternatively, phase-dependent absorption has
been used to reproduce the X-ray data. This paper presents new optical
polarimetric data of CP Tuc and a model that consistently explains its optical
and X-ray data. The model was based on an extension of the CYCLOPS code that
added X-ray bremsstrahlung emission and pre-shock region absorption to the
original version, which only accounted for cyclotron emission. The new code
creates the possibility of simultaneous optical and X-ray fitting. We show that
self-eclipse and absorption data have distinct signatures on the X-ray spectra.
Although we were able to reasonably fit the CP Tuc optical data to cases of
absorption and self-eclipse, we were only able to reproduce the X-ray orbital
modulation after considering the absorption in the pre-shock region.
Specifically, we were unable to reproduce the X-ray observations in the
self-eclipse case. We found that the primary emitting region in CP Tuc is
located near the rotation pole that approximately points to the observer.
