i met them at a pub where i work ...and my friend invited them to her birthday yesterday . They are fun. and got lucky ;) haha!
I live in Lebanon btw.

 zero edge will make the edge be zero height. but i will try the boolean.
Thanks man . Had a party with some guys from sweden yesterday . out of subject but watever :P 

 very true . thanks my friend!
But one other problem...the moutain is a procedural map that i created in geocontrol nayway i'm trying to make the zero edge to be digged so that the water wont be that close to it. how can i do that. 

thanks again

Quote -  Perhaps discreet material zones for each color/material on the road surface, then you can create tiling surfaces that sould work again w/teh caveats from above about image maps.

how can i do this? can u help me doin it ? 

thanks a lot :)

ok! no idea anymore :P so just had one idea but i don't know how to do it : can i make the tile follow a path? or i should do it on photoshop ( cuz on photoshop it will look blurry )

thanks

@falcon2: how can i use ur thirds thing you mentioned?? thats wat i wanted to do but i don't know how. 

thanks again !

hey thanks for the reply . I'll tell how i made this until i get back home and upload the maps so first i export the terrain map from geocontrol wich i made the road in it. The an alpha for the road...in vue i made a procedural map then a mixed material which hav an eco system instead of the blue color in the pic..and the material 2 has the alpha of the road and naterial:a map based on a bitmap which i made. This bitmap is from the road alpha..i enlarge it to 10k cuz i thought that would remove the pixels but that wasnt the solution...btw the alphas are bicubic and materials are object parametric...i dono if that explained it all but am writing on my phone :p anway i made a small texture myself but i dono how to make it follow the alpha and how the tiling works.....

 well i need it for my senior project. this map is 10k x 10k . 
i tried the ecosystem to see if the highway map works then i replace it by a map that i made. but that didn't work. 
So any way to fix that?