See the below for the

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March 21, 2011 at 3:09 pm #3455
mikinho
Participant

    See the below for the explanation.

     

    This will enable a more efficient scaling path in the AV pipeline. On some GPUs it may result in a sharper image, on some it may get funky:
    Windows Registry Editor Version 5.00[HKEY_LOCAL_MACHINESOFTWAREDebugehPresenter.dll]
    “BoundByNativeSize”=dword:0

    This will set your nominal range to video levels, the current defualt for MCE. Use with properly calibrated consumer displays and projectors. IE: devices set for 7.5IRE blacks.
    Windows Registry Editor Version 5.00[HKEY_LOCAL_MACHINESOFTWAREDebugehPresenter.dll]
    “NominalRange”=dword:2

    This will set your nominal rante to 0-255 (PC levels) essentially doing “expanded blacks” use this with a typical PC monitor calibrated for blacks==0.
    Windows Registry Editor Version 5.00[HKEY_LOCAL_MACHINESOFTWAREDebugehPresenter.dll]
    “NominalRange”=dword:1

    They were provided by Ian Kennedy – Microsoft via http://thegreenbutton.com/forums/p/59322/276662.aspx#276662