i found texture tile to be not precisely repeating:
i have a plane created by
plane=ExtendedPrimitives.createPlane(4096,20); ExtendedPrimitives.transformUVCoords(plane,0,0,256,256,0,0);
tex.setClamping(0); plane.setTexture(tex); plane.compileAndStrip(); plane.build();
texture image size is 256x256.
say i look at position (0,0,0) of the plane, i see some part of the texture. then i translate the plane to (4096,0,0), in theory i should see the same texture, but i saw the texture changed. no matter what parameter i put into the transformUVCoords call. i don't know why.