DX8 problemo

[Zizilamoroso]

I'm having some strange problems.

I've got 2 machines with exactly the same setup: win98/2 - dx9 SDK - irrlicht 0.4
The only thing different is the gfx card. Machine A got a radeon9700, machine B got a nvidia riva tnt2.

I try to do create the device like this:
pDevice=createDevice(DT_DIRECTX8,dimension2d<s32>(800,600),16,false,false,0);

This works on machine A but on machine B it fails.

Code: Select all

Warning: Was not able to create Direct3D8 device.
Warning: Was not able to create DirectX8 device.
Warning: Could not create DirectX Driver.

The IrrlichtDevice is created, but if we try to get the videodriver, it returns NULL.

Anyone experienced this problem before?

[Zizilamoroso]

It has nothing to do with Release/Debug mismatch, tried dx in both configurations.

Even stranger...

DT_OPENGL works! Eventhough I cannot remember I ever installed the openGL drivers

[niko]

Does it work when creating the device in fullscreen mode?

[keless]

also, what are the resolution/colordepths of each machine?

[Zizilamoroso]

Fullscreen or windowed doesn't make a difference.

Machine A runs on 1280x1024x32, machine B runs on 1024x768x16.

[saigumi]

I saw this when I had Windows SP2 Beta installed on a PC. The Radeon's worked fine, but the nVidia 53.xx drivers wouldn't properly define themselves to DirectX.

Do you have the Windows SP2 Beta installed?

[saigumi]

Doh, I forgot, it wasn't Windows XP Beta 2, it was this application called GameXP, that tweaks all of the settings in XP to make it run faster. Even after uninstalling it, whatever change it made on the DX subsystem destroyed DirectX and caused me to start getting those "Unable to create a DirectX device."

I had to completely reinstall Windows to fix that.

[Zizilamoroso]

Doh, I forgot, it wasn't Windows XP Beta 2, it was this application called GameXP, that tweaks all of the settings in XP to make it run faster. Even after uninstalling it, whatever change it made on the DX subsystem destroyed DirectX and caused me to start getting those "Unable to create a DirectX device."

I had to completely reinstall Windows to fix that.

Dx works fine actually. If I code directly into dx, there's never a problem. I only have this problem with irrlicht.

[yikyak]

One of my set-ups is identical to your machine B (the one having problems).

It took me a while to get Directx8 working on that one too. The 'out-of-the-box' binaries that come supplied with Irrlicht don't have DirectX capability compiled in (or at least they don't seem to ?). This is possibly to do with DirectX's lack of cross-platform-ness.

I had to rebuild Irrlicht to get it working.

If you're using DevC++, hlide's excellent advice on {this page} is worth following.

You need to make sure you link against d3d8.x and d3dx8d.x ('x' will vary according to your compiler - usually 'lib' or 'a' - the import libraries anyway).

You also need to make sure that you link against the libraries that come supplied with Irrlicht in the irrlicht/lib directory, or you might get library mismatches.

Obviously, the compiler needs to know the paths to these. Doing that got it working for me (and boy does it work...).

OpenGL will work out-of-the-box as Microsoft has been supplying versions of openGL since the mid-90's as part of the default Windows install (there will be a dll in your Windows/System directory called Opengl32.dll - that's the baby).

Cheers

[Zizilamoroso]

K I'll try to recompile. I have DX9 though, not version 8.

For now, I use DX on one and openGL on the other. Can be interesting too...

[Zizilamoroso]

Nothing works

I had to uninstall the dx9 SDK and completely remove and reinstall the dx9 runtime.

Now it works

... typical 'gates' stuff

[saigumi]

The problem was fixed, but I found another cause for this type of problem. In DXDiag, make sure hardware acceleration is set to "FULL". If it isn't, Irrlicht and many games will not find or be able to create a DirectX device.