[lscharen]

Exactly!

I did extend it to use a full-screen foreground mask that implemented this sort of clipping. I was able to make the mask scrollable which allowed the compiled sprites to appear "behind" fences and other complex shapes with per-pixel accuracy.

It could even be used to mask out individual pixel bits that allowed for fake "lighting" changes with a carefully chosen palette.

[vidarh]

I keep wanting to do a "retro-game" and make use of what I've learned about these types of effects now. Despite how far machines like the C64 for example were pushed, I don't think they were pushed nearly as far in terms of games as with demos and it'd be fascinating to try to push the limits..

(maybe one day..)

[sitkack]

I'd love to see a demoscene version of "Hacker's Delight" [0]

[0] http://www.hackersdelight.org/