“Dual sphere-unfolding method for single pass omni-directional shadow mapping” by Contreras, Valadez and Martiınez

Shadow Mapping is a reliable technique to produce shadows in a scene in real time. This technique has been mostly applied to directional lights and only a few methods have used it for omnidirectional lighting [Brabec et al. 2002]. These methods need more than one full render pass to compute the whole shadow mapping. In this work we propose an approach to achieves an omnidirectional shadow map in a single pass.

1. Brabec, S., Annen, T., and Seidel. 2002. Shadow mapping for hemispherical and omnidirectional light sources. In Computer Graphics International.