A few high end c64 games (Mayhem in Monsterland, Sam's Journey and soon Parallaxian) use methods called Alternate Line Method (ALM) or Dynamic Chequerboard Method (DLM)
to simulate non standard colours. When running these games on a CRT screen, some sort of "chrome noise" colour bleeding effect occures and instead of seing the 2 different original colours,
we see the new non standard colour. But when we run these games on non CRT screen, the effect is lost while it really makes these games unique.
Would it be possible to implement such colour blending effect over hdmi as a filter ?
Such filter is implemented in Vice Emulator while chosing CRT emulation filter.
A few high end c64 games (Mayhem in Monsterland, Sam's Journey and soon Parallaxian) use methods called Alternate Line Method (ALM) or Dynamic Chequerboard Method (DLM) to simulate non standard colours. When running these games on a CRT screen, some sort of "chrome noise" colour bleeding effect occures and instead of seing the 2 different original colours, we see the new non standard colour. But when we run these games on non CRT screen, the effect is lost while it really makes these games unique. Would it be possible to implement such colour blending effect over hdmi as a filter ?
Such filter is implemented in Vice Emulator while chosing CRT emulation filter.
As a reference describing ALM and DLM : https://kodiak64.com/blog/luma-driven-graphics-on-c64