Well Grey in photoshop at least just create a new image with a transparent background (rather than white) and you have a checkerboard background. Then draw your sprite and save as a PNG - simple as that!
Or if you already have a sprite then create the new transparent image as before - then copy and paste your sprite ontop.
Load in using something like (in BlitzMax at least)...
gfx = LoadAnimImage("sprite.png",64,128,0,8,FILTEREDIMAGE|MIPMAPPEDIMAGE)
Or if you already have a sprite then create the new transparent image as before - then copy and paste your sprite ontop.
Load in using something like (in BlitzMax at least)...
gfx = LoadAnimImage("sprite.png",64,128,0,8,FILTEREDIMAGE|MIPMAPPEDIMAGE)