Prison (grate detention cells Open).
This element is recommended to use with my other entities having the prefix "Prison", because, for their texture, used one and same image for Diffuse, Normal, Specular channels - is:
. Prison00_D size (4096x4096)
. Prison00_N size (4096x4096)
. Prison00_S size (4096x4096)
for more efficient use of memory, texturing different objects with the same images.
Thus changing the images, for example, by reducing their resolution from 4096x4096 to 2048x2048, change texture on all my entities with the prefix "Prison".