Yup, that was that, the 3DS works now. Thank you for your help. *Adds Pongo to thx list*
However, as my terrain is 64*64 quad faces, closing it makes 256 extra unwated faces (64 * 4 sides). Altough it didnt seemed to affect framerate, I wish I had a better way to 'close' the terrain (at least to have a clean model). Anyways, have invisible faces (alpha 0 or mask color) any influence on the performances ?
However, as my terrain is 64*64 quad faces, closing it makes 256 extra unwated faces (64 * 4 sides). Altough it didnt seemed to affect framerate, I wish I had a better way to 'close' the terrain (at least to have a clean model). Anyways, have invisible faces (alpha 0 or mask color) any influence on the performances ?