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Rendering issues in Tantalus Media games (Spongebob, MX ATV, etc) #15898

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@hrydgard

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@hrydgard

As Gamemulatorer pointed out in #9018 (comment) , these games have weird rendering techniques in common.

All except MegaMind (and it seems MX vs ATV: On The Edge) render a very complicated striped post-processing effect, that doesn't actually seems to do very much (EDIT: it applies textured depth fog).

The details seem to vary a bit from game to game but all have in common copying the screen in small stripes to a temporary and doing strange processing there, involving depth texturing and reinterpret between 16 and 32-bit formats. I created this common issue where I'll write up any progress and link PRs to.

We are currently very unsuccessful emulating this, but I think it's not quite as hard as it looks.

Features I think we need to implement for this to work:

Still will likely not perform very well, but better than nothing.

Details are in the various sub-issues:

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