Hi Andrea. The program is great, but i'm finding it a little slow. I have about 500 JPGs, each 3000px wide, for printing 30 inches wide at 250dpi, a mosaic 120 tiles wide and 63 pixels per tile, the rendering takes about 3 hours on an Athlon 3500+ with 2GB of RAM. Do you have any suggestions to increase performance? I could make the tiles smaller but I want to retain image quality for such a big print.
Another thing - a more accurate "time left" indicator would be great, and if you could spare a couple of cycles to update the UI every few seconds so the user knows when it'll be done, that'd be very handy
If every tile is only 63 pixels width then it's useless to have 500 JPGs of 3000 pixes width. Reduce them to like 100 pixels width for superfast performance and without loosing any quality. They will be reduced to 63 pixels in any case.
Normally I suggest a width of 300 pixels for every tile in your collection, and a somewhat bigger size for every tile (not only 63 pixels, but like 150 pixels).
In such situation the mosaic will be ready in like 2 minutes.