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Pixel shader 2.0

    Question

  • the tone adjustment seems to require pixel shader 2.0 in beta 3.0.  this "breaks" a feature that was available in beta 2.0.  I'd prefer to have HDview use pixel shader if it is present, and use the old software solution if pixel shader is not present in the graphics card..
    Wednesday, July 30, 2008 6:35 PM

All replies

  • Right, that's a known trade-off we had to make.  Our old tone adjustment could get by with the DX7 fixed function pipeline.  The new tone adjustment needs Pixel Shader 2.0 to do high dynamic range and color management, neither of which the old did.

    Wednesday, July 30, 2008 8:19 PM
  • OK,

    Can you give me an idea of how prevelant Pixel Shader 2.0 is? 
    Thursday, July 31, 2008 1:11 AM
  • It came about about 4 years ago?  And it's required for Windows Vista "Aero":

     

    http://support.microsoft.com/kb/919183

     

    That said I don't know what percentage of cards out there have it, but it's the minimum we could get away with for our tone adjustment.

    Thursday, July 31, 2008 7:02 AM