AMD's FidelityFX Super Resolution is surely the most eagerly awaited feature for those lucky enough to have purchased a new Radeon graphics card in the last six months. It is the Red Team's answer to Nvidia's impressive Deep Learning Super Sampling (DLSS) technology and could be the savior to AMD's first-generation ray tracing attempts.

However, the road to the final version still seems a long way off, and even though AMD has publicly stated that it has not yet determined exactly how it will work, 4A Games has already stated that FidelityFX Super Resolution is not compatible with its rendering technology and that it will not be compatible with the Metro Exodus Enhanced Edition, Metro Exodus Enhanced Edition, and has stated that it will not be supported in Metro Exodus Enhanced Edition.

What is interesting here is not the fact that FFXSR will not be included in the remastered Metro Exodus, even though it is the first major game to be released with ray-tracing GPU compatibility as a minimum system requirement. It is that 4A Games seems to know how the new AMD feature works and claims that it will make it incompatible with their engine.

The Metro Exodus Enhanced Edition FAQ (via @Locuza_) asks the following questions:

Deep Silver, the publisher of Metro, has stated that the developer, 4A Games, "At this time, AMD for Metro Exodus FidelityFX super-resolution feature has not been evaluated," and clarified that point in a follow-up email.

"Our FAQ mentioned the AMD FidelityFX open source image quality toolkit, which targets traditional rendering techniques and does not use our new RT-only render. 4A Games is always eager to innovate, evaluate, and use the latest technologies that will benefit our fans across all platforms and hardware."

The plus side is that AMD seems to have actually made a final decision on how to wrap up the features they so aggressively announced when the Radeon RX 6800 XT launched about six months ago. It is interesting to note that even just a month ago, AMD's Scott Herkelman told PCWorld that the company was "evaluating different ways" to implement DLSS.

"Really the most important thing for us is: what would game developers want to use? Herkelman said in March. Because at the end of the day, if it's just for us and we force it on people, that's not a good outcome"

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"So we would rather say, 'Hey gaming community, which techniques would you like to see us implement? Then it will quickly spread throughout the industry and hopefully cross-platform. We have a lot of work to do, but ...... Which one works best for game developers, that's what we're looking for."

Sadly for AMD, at least one of these game developers seems unwilling to use the method that the Red Team seems to have chosen. This is especially unfortunate if it suggests that it may be difficult to get support for new technologies.

DLSS is not just a performance cure-all for the blow suffered when ray tracing is enabled; any FidelityFX super-resolution-enabled card, ray tracing related or not, would welcome the free performance boost.

It should be said, however, that this is very likely just an edge case for AMD's FFXSR, as this is just one game developer and one game engine claiming incompatibility. Especially given that Nvidia's DLSS support, while certainly increasing, is somewhat erratic.