What do you mean? Can you be a little bit more clearer
I have a background for my artwork and I set it with raytracing but it did not scale to fit the picture make by raytracing.
did you try cropping the image
It wraps around so probably use the method he showed us in the classroom.
Specifically, I used the "Map" -> "Make Seamless" filter in the Gimp (GNU Image Manipulation Program) software (a free graphics editor similar to Photoshop).