nixing the entirety of the HDR transport and display tone mapping

bugI don't understand


What does nixing the transport mean? And isn't tone mapping used to squash a HDR image back into non-HDR space?

ZeppMan217Would've been nice if they added adaptive VSync to the driver as well. For all of Nvidia's stupid proprietary shit, they had this feature for years.

RaevenlordIndeed. Apparently what this technology does is basically the tone mapping that the display would have to do by itself on HDR content, only at a driver level, before the image is sent to the monitor, thus reducing that tone mapping processing time.

If you look at the third picture, conventional HDR transport is replaced by Freesync 2-specific transport which apparently already includes display tone mapping.

R-T-BI want AMD to introduce NVIDIA style fast vsync so bad...

deemonWhy? It's complete waste of space when we already have superior g-sync and freesync. This fast vsync thing is just utter bullshit. I so badly want my GPU run at 100% all the time and melt my computer .... not. You would be better off buying proper FreeSync display.

R-T-BBecause I don't want to fork out money for a new monitor and can handle my thermals just fine?

deemonyour system specs would indicate you don't need AMD drivers at all.

bug@R-T-B Did you really buy a Titan X to pair it with a FHD monitor?

R-T-BOn ebay when the crash happened yeah, you can't complain for $300 you know? ;)

I'll admit, it's overkill as fuck. But I don't care, it was too cheap to pass up.

It'll get me past Pascal for now. If NVIDIA continues to lock down their bioses, I'll go AMD next.

bugMakes sense, You can probably sell that today for more than $300 (pulled that out of my behind, Idk for how much it goes on ebay these days). But if that deal was so sweet, why didn't you follow it up with a deal for a 4k or QHD monitor? I'd love to have such a monitor, but since I only buy mid-range video cards, I'm not gonna have the power to drive it for a couple more video card generations or so.

PCPerspectiveFreeSync 2 will require monitors to support LFC and thus to have no effective bottom limit to their variable refresh rate. AMD will also instill a maximum latency allowable for FS2, on the order of “a few milliseconds” from frame buffer flip to photon.

The bigger change to FreeSync 2 is on the color space. FS2 will require a doubling of the perceivable brightness and doubling of the viewable color volume based on the sRGB standards. This means that any monitor that has the FreeSync 2 brand will have a significantly larger color space and ~400 nits brightness. Current HDR standards exceed these FreeSync 2 requirements, but there is nothing preventing monitor vendors from exceeding these levels; they simply set a baseline that users should expect going forward.

In addition to just requiring the panel to support a wider color gamut, FS2 will also enable user experience improvements as well. First, each FS2 monitor must communicate its color space and brightness ranges to the AMD driver through a similar communication path used today for variable refresh rate information. By having access to this data, AMD can enable automatic mode switches from SDR to HDR/wide color gamut based on the application. Windows can remain in a basic SDR color space but games or video applications that support HDR modes can enter that mode without user intervention.

Color space mapping can take time in low power consumption monitors, adding potential latency. For movies that might not be an issue, but for enthusiast gamers it definitely is. The solution is to do all the tone mapping BEFORE the image data is sent to the monitor itself. But with varying monitors, varying color space limits and varying integrations of HDR standards, and no operating system level integration for tone mapping, it’s a difficult task.

The solution is for games to map directly to the color space of the display. AMD will foster this through FreeSync 2 – a game that integrates support for FS2 will be able to get data from the AMD driver stack about the maximum color space of the attached display. The engine can then do its tone mapping to that color space directly, rather than some intermediate state, saving on latency and improving the gaming experience. AMD can then automatically switch the monitor to its largest color space, as well as its maximum brightness. This does require the game engine or game developer to directly integrate support for this feature though – it will not be a catch-all solution for AMD Radeon users.