Isn't adding HDR to a game trivial?

[Davros]

So in farcry it was calculate the image in hdr, reduce to 8bit, send to display
and now its calculate the image in hdr, send to display
yes/no ?

 

[Rodéric]

I'll ask around, no guarantee, but anyway it's not that odd :

Display scan-out
Direct3D 11 hardware supports these formats for display scan-out (D3D11_FORMAT_SUPPORT_DISPLAY):

• DXGI_FORMAT_R16G16B16A16_FLOAT
• DXGI_FORMAT_R10G10B10A2_UNORM
• DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM
• DXGI_FORMAT_R8G8B8A8_UNORM
• DXGI_FORMAT_R8G8B8A8_UNORM_SRGB
• DXGI_FORMAT_B8G8R8A8_UNORM
• DXGI_FORMAT_B8G8R8A8_UNORM_SRGB

(source : https://msdn.microsoft.com/en-us/library/windows/desktop/ff471325(v=vs.85).aspx)

[I don't remember whether there are any other extra requirements/what happens at display scan out, would need to check DVI/HDMI/DP spec &/| Windows too...)

 

[Shifty Geezer]

So in farcry it was calculate the image in hdr, reduce to 8bit, send to display
and now its calculate the image in hdr, send to display
yes/no ?

I believe so. There haven't been HDR monitors (and still aren't) so there's no way to display a 10 bit output. There may be displays that take a 10 bit input and tone-map them themselves(?). HDR is a New Thing requiring an HDR display to work, and these are presently only 4K TVs.

 

[Rodéric]

Found some useful information:
https://developer.nvidia.com/displaying-hdr-nuts-and-bolts