Hi Andrew,
Thank you for your reply. The Leica total station looks like a very accurate tool to use on site. I used to work with Stephen Thomas above and tested the vray camera options with the standard camera in the viewpoint and it works a treat (minus the atmospheric refraction and earth curvature element). We also use Resoft Windfarm and albeit painstakingly slow, crashy and having a mind of its own at times it does have the atmospheric refraction and earth curvature. As you say, if only there was a tick box option in 3dsmax...
I seen Dr Chris Cox's script too so it is possible. I found the .txt code file he used to create his 'Earth Curver MAXScript' but I have no idea how to turn in into a plugin .ms/ .mse file?
If you or any one else knows how to turn .txt code into a script or plugin please get in touch.
Cheers,
Joanna