I solve the problem of tiled texture inserting only the non tiled textures in the atlas, and separating the tiled textures.
Now i have an atlas that contains only non tiled textures
My problem now is:
I have an atlas texture that contains two textures of width 512 .
and one with height 256 and one with heigh 512.
The texture atlas have a width of 1024 and a height of 512.
i have a UV on the first vertex of first texture U:0,7 , V:0,4
and i have an UV on the second vertex of second texture of U:0,4 , V0.8.
How i can transform these examples, of vertexes for working with the atlas UV?