Nicely done!
I'd bet that people were surprised to see a PC Engine at the Demo Fest.
Thanks!
The organizers were happy/intrigued, but a random sampling of guests kinda proved an earlier statement of punkfloyd's about their PCE/SGX demos: nobody really knows what the PCE is ("Is it a graphics card for the PC?", I heard) nor what it is capable or incapable of. I love the demoscene but it is often removed from the retro gaming scene, as I'd call it.
Anyway, here's a little explanation of the "hicolour" effects in the slideshow:
The added benefit is that you can devote an entire colour channel (red, or cyan if you want) to one layer (sprites or SGX BG...) and the remaining channels to the standard BG. This means more & a greater variety of colours together in a confined space, with no attribute clash. Hopefully.
A test of this is here:
http://chrismcovell.com/data/OldIsBeaut-Test.zipI and II change palettes.