I did it again

[rifter1818]

Ok i finnally got my program to accept the fact that purehardware or hardwarevertexprocessing is a valid and desirable flag but somthing is terribly wrong. As soon as i change from SoftwareVertexProcessing to (HardWareVertexProcessing or PureDevice) two things happen, 1 DROP IN FRAMEFRATE 60 fps -> 20, all my meshes disapear (again). Any ideas of why this is / how to fix it? (video card is a nVida GeForce 4 128mb)

[wyrd]

Can you post us your device creation code?

[rifter1818]

Can you post us your device creation code?

Dim DevType As DeviceType
       Dim CFlags As CreateFlags
       Dim Caps As Caps = D3d.GetCaps()
       Dim PP As New Microsoft.DirectX.Direct3D.PresentParameters
       DevType = DeviceType.Hardware
       CFlags = CreateFlags.SoftwareVertexProcessing
       If Caps.DeviceCaps.SupportsHardwareTransformAndLight Then
            CFlags = CreateFlags.HardwareVertexProcessing
       End If
       If Caps.DeviceCaps.SupportsPureDevice Then
           CFlags = CFlags Or CreateFlags.PureDevice
           Debug.WriteLine("PureDevice")
       End If
       PP.BackBufferCount = 1
       FileOpen(1, Application.StartupPath & "\config.cfg", OpenMode.Input)
       Input(1, PP.BackBufferWidth) '1024
       Input(1, PP.BackBufferHeight) '768
       Input(1, PP.BackBufferFormat)'A8R8G8B8
       FileClose(1)
       PP.Windowed = False
       PP.SwapEffect = Microsoft.DirectX.Direct3D.SwapEffect.Discard
       PP.AutoDepthStencilFormat = DepthFormat.D16
       PP.EnableAutoDepthStencil = True
       PP.PresentFlag = PresentFlag.None
       MainForm.Show()
       If Not D3d.Initialize(DevType, MainForm, CFlags, PP) Then
           End
       End If

[Loffen]

not sure about this, but i see you use:

 

A8R8G8B8

 

I had problems with that before, so try using:

 

X8R8G8B8

[Menge]

ye from what i know the device back buffer can't be A8R8G8B8.

 

if you need an alpha value on a rendered surface, that surface can be A8R8G8B8 but the device back buffer can't