Summary: This plug-in adds several light manipulation commands in a new menu to Rhino V4.
Lights in Rhino do not allow a great deal of control for positioning. These utilities add some commands that you may find useful for this.
There are some for rectangular lights (the plug-in calls them area lights for now) and some for spotlights.
Rectangular lights are the most difficult to use in Rhino so this plug-in allows the user to make some 'special' ones that have handles and some commands to manipulate the handles, see below.
Unzip to a convenient location, then drag and drop the Light_Utilities.rhp file onto a Rhino 4.0 window to install it.
AreaLightPlace- places a rectangular light with a target point and a source location. Default size is 10 by 10 units but you can enter anything you like (square) and change the size later using AreaLightResize.
The above work only on lights made by the first command, AreaLightPlace.
The AreaLight manipulation tools are very much a prototype and fairly fragile. Please be sure not to delete the points (handles) that are grouped with the lights.
Please email firstname.lastname@example.org with comments or questions.