1 Reply Latest reply on Jan 27, 2009 5:15 PM by Rus

    MRT problem with X1900

    bungchika

      Hi there,

       

      I have a problem setting up MRT(multiple render target) with X1900.

      Settings are like this:

      0 [A16R16G16B16] - DiffuseMap, Specular, Bump

      1 [A8R8G8B8] - Depth for DOF (depth of field)

      2 [A16R16G16B16] - Normal & Depth for SSAO (screen space ambient occlusion)

      This settings works on HD4850, Geforce 8600 and Gefore 9800.

      but with X1900, i couldn't write any values to target 2 (SSAO).

      I checked it with PIX.. and it's all empty!!

       

      ANY HELP will be greatly appreciated.

      Thanks in advance!

       

        • MRT problem with X1900
          Rus

          Hi.

          You should closely read "Multiple Render Targets" topic in DX SDK. It says that you need to check D3DPMISCCAPS_MRTINDEPENDENTBITDEPTHS flag.

          On X1950, and probably on X1900 it is not legal to use targets with the different bit depths.

          With the best regards.