in addition to the last comment/suggestion i made, i'll add, that i do from my limited knowledge of Hardware programming beleive its possible for the GPU manufacturers to add this. It would be cheaper in every aspect for everyone to implement rather than to pass the buck onto software development houses.
V-Sync is already in all games, as we know to reduce visual artifact, (they will also flicker), and as we all know being gamers, we know that this slows the frames produced to match the GPU cycle for displaying frames. its very likeley in order to make the said epilespy filter that V-Sync is either forced on, or that the epilepsy filter will be comparing possible more Frames than it needs to. This is also another reason why Epi filter should be on the GPU because it would run faster there than in software.
(unwittingly i thought of a test for people who have the game already with Epi filter, to lower CPU usage by enabling V-Sync to see if it makes a difference.)
UBI are just barking up the wrong tree here. I can guess why they are enforcing this on software rather than hardware manufacturers tho. And thats because UBI sell primarily CONSOLE games. Harware cannot change on those except for a total recall, which would cost billions for all the consoles from every manufacturer ever created. As we have heard, PS3, XBOX it has been said before are likely to be the last consoles ever produced as they cost too much to produce in R&D etc...
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