Using Import Mask for walkable areas? [SOLVED]

[stuh505]

In this test I am only trying to import 1 area.  I made a 2 color image (solid black and solid white) and converted it to Indexed color in photoshop.  When trying to import it as a mask, I get an error message telling me to paint my mask using color index 0 for blank and 1+ for layers.  In Photoshop, I don't see a way to do this...I can view the color table but it does not say what the indexes are!  I would assume black is an index but it's giving me the error with this simple 2 color image.

[Gilbert]

What indexed colour mode was the mask using? It should use 256 colours, 2/16 colour images probably won't work (by that I mean the file format, not actual colour coutn in the picture).

Of course, your problem was more probably when PS converted it to indexed colour, it used colour indices > 15 (or in case of hotspot masks, > 29), I have just thought of a way which may work against it (not tested). That is, if your programme can convert a picture into indexed colour mode of 16 colours, convert it to 16 colours first (provided you don't need a hotspot mask of more than 16 colours) so the colours are forced to be remapped to the first 16 slots, then, increase the colour depth of it to 256 indexed colors, which hopefully keeps the original colours intact using the first 16 slots.

[stuh505]

I got it to work.

When converting to Indexed Colors, I chose Exact.  Then chose Custom, and selected a series of colors for a new pallette.

For some reason I can't use the color pallette like swatches to pick my color...however, it will automatically pick the color closest to whatever I try to use since it's limited that way.

This works.

The very first swatch will be the transparent color.