TY - GENERIC DO - 10.20944/preprints201912.0173.v1 UR - http://dx.doi.org/10.20944/preprints201912.0173.v1 TI - An Efficient and Leightweight Illumination model for Planetary Bodies including Direct and Diffuse Radiation T2 - Preprints AU - Scharringhausen, Marco AU - Witte, Lars PY - 2019 DA - 2019/12/12 PB - Preprints