Both alpha maps and Bump maps are just grey scale images where the value of the given pixel determines the bump or transparent amount. There's a chart some where that shows which channel is looked at for each dot in the material lab. I think its channel A for color values and channel B for numeric values. That's probably not right cause there's that third channel. -- Aldaron posted while I was off looking for the chart. --

Message edited on: 09/20/2004 22:17