LDI has per viewing direction ("pixel") an extra byte holding amount of depth pixels in that direction.
Average LDI depth is 1.26 (literature) -> (1.26 + 1)TexSize[REF]
These pixels are RGBAD instead of RGBA
Currently I don't know about image compression possibilities. Assuming some JPEG-like ratio is reachable.
![[Graphics:../Images/bytesize_gr_65.gif]](../Images/bytesize_gr_65.gif)
![[Graphics:../Images/bytesize_gr_67.gif]](../Images/bytesize_gr_67.gif)
![[Graphics:../Images/bytesize_gr_68.gif]](../Images/bytesize_gr_68.gif)
![[Graphics:../Images/bytesize_gr_69.gif]](../Images/bytesize_gr_69.gif)
![[Graphics:../Images/bytesize_gr_70.gif]](../Images/bytesize_gr_70.gif)