<tt>Skylight</tt>: a new code for general-relativistic ray-tracing and radiative transfer in arbitrary space–times

To reproduce the observed spectra and light curves originated in neighborhood of compact objects requires accurate relativistic ray-tracing codes. In this work, we present Skylight, a new numerical code for general-relativistic ray tracing radiative transfer arbitrary space-time geometries coordinate systems. The is capable producing images, spectra, from astrophysical models as seen by distant observers. We incorporate two different schemes, namely Monte Carlo transfer, integrating geodesics region to observers, camera techniques with backwards integration observer emission region. validated successfully passing several test cases, among them: thin accretion disks neutron star hot spot emission.