Using Rhino to calculate the technical specifications when doing light design?

Hello people,

We’re two swedish design students, and currently doing a project about light design - working with LEDs. The quality of the end result of the project depends on we getting all the technical calculations right; for example getting the right amount of Lux at the surface we wish to luminate.
Our teacher told us that it might work to use Rhino to figure it all out (?) - that I should make a cone-shape that’s has the same angle and base width as the light spread of our LEDs. It would then be possible to multiply this cone, playing around with it - trying to see how they could be placed to smoothly overlap each other for example.

We’ve tried google it and searched youtube for tutorials about this subject - without any luck. We’re now turning to you guys, hoping that somebody can show push me into the right direction. Have anybody worked Rhino in this way before? We would really appreciate some help here.

Best regards
Martin and Philip

The basic Rhino render does not have this “photometric” ability.
I think Flamingo nXt includes both ray-trace (pretty pictures) rendering and photometric (light calculation) options.