Landscape demo update

Miscellaneous Forums/Blitz Showcase/Landscape demo update

slave_of_time
 #1
nice, got 15 fps on 1600x1200 with antialising. good work.
strange, got only 30 fps on 640x480 witout AA. (tested on AMD Athlon XP 2100+ with a Gforce4 Ti 4600)