Now that we have prepared our quad, let's scroll the texture:
scroll 0.8 0.8
The scroll attribute changes the texture coordinates with the given offset. The following is a diagram showing the effect of scrolling. The upper-right corner was the first part of the texture we rendered and the lower-left corner was the part of the texture we rendered with the scroll applied.
This attribute can be used to change the texture coordinates without the need for changing the UV coordinates of a model itself.
52.15.80.101