Program for keeping into account the solar reflections from obstructions in ESP-r on the basis of the irradiance ratios

Modish is a program for bringing into account the reflective effect of solar obstructions on solar gains in an ESP-r building model on the basis of the irradiance ratios combining the direct unreflected radiation on a surface, as calculated by ESP-r, and the total radiation on the same surface calculated by the means of Radiance.