Cheating has always been part of demomaking. Smooth animation? think about hardware-scroller: all might be pre-rendered in VRAM, then display on screen is wisely set at each frame by changing pointer to VRAM… Thru the years, I used HW-scrollers in various ways to get some animations which kept improving. Up to today release of “Logon’s run - 3D meets the aging bits”. - Making of / pouet / HN