Imagemagick command to assemble images into a sprite
Change the dimensions and tile layout to suit the size of images and number of rows/columns you desire.
montage -background transparent -geometry 1500x344+0+0 -tile 4x13 *.png sprite3.pngChange the dimensions and tile layout to suit the size of images and number of rows/columns you desire.
montage -background transparent -geometry 1500x344+0+0 -tile 4x13 *.png sprite3.png