Interactive rendering of urban models with global illumination

  title={Interactive rendering of urban models with global illumination},
  author={Oscar Argudo and C. Andujar and Gustavo Patow},
In this paper we propose a photon mappingbased technique for the efficient rendering of urban landscapes. Unlike traditional photon mapping approaches, we accumulate the photon energy into a collection of persistent 2D photon buffers encoding the incoming radiance for a superset of the surfaces contributing to the current image. We define an implicit parameterization to map surface points onto photon buffer locations. This is achieved through a cylindrical projection for the building blocks… CONTINUE READING