The following screenshot was obtained by using the square in the corner as a brightmap.
I'd like to know if this is an acceptable use or if it is something considered unsupported?
The reason I ask is that sometimes there is a lack of precision that detracts from the appearance of a brightmapped sprite. e.g. if a monster has single pixel red eyes, these can be made to glow menacingly with a brightmap consisting of 2 white pixels in the right place on a brightmap. However, sometimes (presumably due to rounding errors or something) the brightness "spills out" slightly onto surrounding pixels making their edges glow slightly. Usually these are in a colour different to the eyes (e.g. zombie skin) and so them being bright can be quite obvious. If it was acceptable to make the dots on the brightmap red, then even if there was a bit of "spillage" of brightness onto surrounding pixels, at least they would be coloured red and so would not look as obvious (and may even look like light from the eyes illuminating the surrounding eye sockets).
If it is "legal" I just wish that I'd discovered it earlier.
