ok, thx for the answer :(
pb is interpolation of the edges pixels:
if displaying the whole texture, edge
pixels use opposite edge pixel for
interpolation ( if wrapping set )
solution is to display (size-1) x (size-
1), so that there is a "correct" pixel
to interpolate with...
See http://www.web3d.org/www-
vrml/hypermail/2000/0001/0059.html for
detailled resolution of the pb
Thanx Gil Carter !
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