Could you explain further cos nothing seems to happen when I try this? What tool do I need to have selected and does it matter if I select edges or polygons?
Thanks for your help!
Tried the shader as a test with a 3×3 grid and split my image into 9 seperate images. Loaded all 9 into the shader but it seems to apply just 3 of the images to 1 to each row? Set it to index ratio like suggested. Getting closer but stuck now!