| 摘要 |
<p>The invention concerns a method for obtaining a simulated digital representation of the radiative energy state of a heterogeneous three-dimensional scene cut out into a plurality of elementary cells (71, 72, 73). It consists in: defining a plurality of incidence sectors fewer in number than the incident directions; calculating cell by cell, an intercepted sector energy equal to the sum of intercepted energies of incident rays in the incidence sector; using a sector diffusion transfer function enabling to calculate a diffused sector energy at the original point of diffusion in the re-emission direction Φvj ; calculating the diffused volume energy as the sum of diffused sector energy.</p> |
