[delvpier]

I have a method for making a good map_F from map_c and map_t in few hours of work...

Yes, you're right... I made it yesterday BUT I HAVE A BIG PROBLEM...

To get first basic files from Microdem for map of such size, I'm sure you know you can't set map pixel size at 50 to get map_c (out of resources)... so I set to 200 and, after cutting at by 8 divisable size, I resize x 4 in Gimp with sinc (Lanczos 3) interpolation (so no need to blur coast)... to be more complex, I extend land by 1 or 2 pixels before resizing x 4 ( ensuring there is no problem of holes or water raised on shores ). For map_t, I start basically by setting water at 31 and land at 0... but later often I extend also land area by 1 or 2 pixels (no sand beaches) !

The result is there are differences between representation in map_c and in map_t ! And now trying the method you described, it gives bad results for coast at far distance... even more, it gives also bad results with rivers... because I added rivers much later on map_c... without texturing in map_t (if you look at map_t, there is no color 30 for rivers)

To be even more complex... when I said setting map pixel size at 200... NO... I don't remember wich map pixel size I've set I tried many with only one ambition : making the greatest size including all islands and loadable in game... I think it was 115 but I'm not sure and I haven't keep any notes about... and I deleted basic files :x

So now I'm in a total shit because of that bloody map_F I didn't think about, playing allways Perfect !

But thanks... :wink: