P. Schwarzbözl, R. Pitz-paal, and M. Schmitz, Visual HFLCAL -A software tool for layout and optimization of heliostat fields The computation time is given for a desktop PC with AMD Phenom II X6 1055T 2.8 GHz and 12 Go RAM. 3 A Monte Carlo realization means a single ray P, Proceedings of 15th SolarPACES Conference, pp.1-8, 2008.

P. Garcia, A. Ferrì-ere, and J. J. Bézian, Codes for solar flux calculation dedicated to central receiver system applications: A comparative review, Solar Energy, vol.82, issue.3, pp.189-197, 2008.
DOI : 10.1016/j.solener.2007.08.004

M. Sanchez and M. Romero, Methodology for generation of heliostat field layout in central receiver systems based on yearly normalized energy surfaces, Solar Energy, vol.80, issue.7, pp.861-874, 2006.
DOI : 10.1016/j.solener.2005.05.014

F. Collado, Quick evaluation of the annual heliostat field efficiency, Solar Energy, vol.82, issue.4, pp.379-384, 2008.
DOI : 10.1016/j.solener.2007.10.007

P. K. Falcone, A handbook for solar central receiver design, Tech. Rep., Sandia National Labs, 1986.
DOI : 10.2172/6545992

J. De-la-torre, G. Baud, J. Bézian, S. Blanco, C. Caliot et al., Monte Carlo advances and concentrated solar applications, Monte Carlo advances and concentrated solar applications, pp.653-681, 2014.
DOI : 10.1016/j.solener.2013.02.035

M. Pharr and G. Humphreys, Physically Based Rendering, second edition : from theory to implementation, 2010.

F. M. Siala and M. E. Elayeb, Mathematical formulation of a graphical method for a no-blocking heliostat field layout, Renewable Energy, vol.23, issue.1, pp.77-92, 2001.
DOI : 10.1016/S0960-1481(00)00159-2

R. Osuna, R. Olavarría, and R. R. Morillo, Construction of a 11MW Solar Thermal Tower Plant in Seville, Spain, Proceeding of 13 th Solar PACES Symposium, 2006.

W. L. Dunn and J. K. Shultis, Exploring Monte Carlo Methods, 2011.