I am working on a script that creats a number of points and performs radiance calculations on those points and then loads the data back into the points so that I can work on it. I also need to be able to calculate the radiance data only for the date and time in the model view. I have tried the commands in the scripting documentation but I think i'm doing something worng because when I change the date i get back the same values and it seems a bit buggy about loading back into the nodes sometimes it works sometimes i get an error. Has anyone done something like this before? Thanks for the help.