Creating a Line Spline Make Line visible in veiwport (setting checked under line) Apply Unwrap UVW modifier to line spline Under Unwrap UVW, select polygon select UV Editor select both end face and start face from scene right-click in UVW Unwrap editor window and select "break" select freeform at the top of UVW Unwrap editor to move both start and end face away from box At the top of UVW editor select, "relax" select "start relax" and "stop relax" when it reaches about 3/4 the way to the center of the box Select "reshape elements" Assign a bitmap to the line spline in the Slate Material Editor Open UVW editor again change the position of the projection as you'd like