Rendering order appears correct on the Hollow of prims. But looking thru a forest of trees something does not look right. Like trees far away cause a weird masking effect on trees close by. More or less trees behind the ones closest to you show first.
Edit:
Though hollow alpha rendering is worse object sorting is worse. This window should not be in front if the stair case. http://www.joe-brown.net/SecondLife/AlphaObjectSorting.jpg
Edit Again:
After most testing. I unlink the two problem object Window and stair then after I deleted the Surrounding house they Rendered Correctly. Only when I am completely surrounded by an enclosed prim area things do not render correctly
