1. A computer-implemented method comprising: determining, responsive to ascertaining that a size of a primary image exceeds a threshold image size for a system, that the primary image is to be partitioned into multiple sub-images; calculating a guide parameter to be used to size at least one of the multiple sub-images, the guide parameter being calculated based on an image memory attribute of the system and a graphics memory threshold for the system; determining a first dimension for the at least one of the multiple sub-images based on the guide parameter; determining a second dimension for the at least one of the multiple sub-images based on an amount of graphics memory up to the graphics memory threshold available to generate the at least one of the multiple sub-images using the first dimension; and partitioning the primary image into the multiple sub-images.