I will be rewiring the lights in my shop and am looking for an online lighting layout calculator. Last summer, when I was not thinking about my lighting, I stumbled across a neat online program from a light fixture company. I input the length, width, and height of my shop; the type of fixtures I wanted; the level of light (in ft-candles) at bench height I wanted; color of walls and ceiling; and maybe a couple of other parameters: and it showed me the number of fixtures and where I should place them on a grid. It also computed the ft-candles in each section of the grid.
Unfortunately, I didn't need it then and can't find it on Google now.
Does anyone know of any good online layout tools for lighting layout?