Answer Questions

• Dan Konigsbach Sparse Matrix-vector multiplication on GPU using DirectX 9

  I want to implement Sparse Matrix-vector multiplication on GPU. I have a matrix where each component is of the form struct cell {     int value;     int row;     int col; } I store the row and column with the value because I rearrange the matrix into the Compressed Row (CRS) sparse matrix storage format. Can I pass the matrix to the GPU as a texture that stores the above values. Can I pass the vec ...Show All

• jdcompman Force Feedback not working with October SDK and managed code

  Hi, I am trying to get the force feedback feature to work with VB.Net but not able to do so. Basic features work fine. The C# sample provided with the DirectX9 doesnt seem to work. I am using Logitech WingMan Cordless Rumblepad 2.4 GHz and am getting an error on a particular line of the sample (code on this link: http://msdn.microsoft.com/archive/default.asp url=/archive/en-us/directx9_m_Oct_2004/directx/input/directinput_fo ...Show All

• KKL REF mode D3D

  First thing - does MS(r) D3D(r) REFerence rasterizer provides pixel shader support Second - I've launched D3D(r) Pixel Shader example of MS(r) DX(r) 8 SDK (r) and on my GPU (Intel 82588 GM/GME or something like this, if it will be neccessary I'll write full  naturally name, VGA not compatible) it, naturally, launched in REF mode, but the output picture was black screen. Interesting example . The same picture I've go ...Show All

• califman1849 Setting up a D3D app in Visual C++ .NET 2003

  I have a small 3D app I am coding as I am learning. I am trying to implement some DirectX fonts to display stats to the screen but am having trouble at compile time. c:\dxsdk\include\dinput.h: DIRECTINPUT_VERSION undefined. Defaulting to version 0x0800 c:\Documents and Settings\Joe\My Documents\Visual Studio Projects\Designer\D3DGame.h(48) : error C2146: syntax error : missing ';' before identifier 'FontDesc' c:\Documents and Settings\Joe\ ...Show All

• Yogesh Kumar DirectDraw Overlay Surfaces Problems

  Hi everyone,     I got problems when using DirectDraw overlay surfaces, in my case, I program with ATI Radeon Serie Cards. when create DDOverlay Surface over certain screen value (960x720) , the graphic data filling to the surface will be displayed in distrotion. every thing showing in blur, however the data itself if ok, so long you got them displayed within (960x720). I also checked the DDCAP data, showing t ...Show All

• Designing-Systems.com Installation Problems

  I've just installed the DirectX SDK and am getting results not listed by other forums and people.  Previously, I used to program with DX8 and had no problems in setting up dependencies and references.  However, with the DX9 installation, it doesn't recognize any dependencies or references.  I've downloaded the latest update (June 2005 ed. of DX9SDK), and still have problems.  I'm running the .NET framework 1.1 and using C#, C ...Show All

• Russell Christopher - msft storing of directx sample

  How does directx stores it's samples I have a 22KHz WAV file , with 8 bit's per sample . I load the wav into a buffer. I want to create a pointer to go over a locked portion of the buffer , sample by sample . What cast should the pointer be is it double byte  or what   Oh .... This makes everything much harder. Do you have any ideas about implementing an FIR filter (a simple convolution with ...Show All

• Russell Barr DirectDraw Deprecation

  Hi everyone; newbie here both to the forums, DirectX, and (to a lesser degree) game development in general.  I'm wanting to get into game development as a hobby, maybe a couple of small shareware games for the heck of it.  Nothing spectacular, just have a couple of ideas in mind that I'm wanting to do.  I understand that DirectDraw is now deprecated, but my main concern is whether that just means that development on it is stopped ...Show All

• mabxsi Running MDX games on other computers

  I've been working on and MDX game for a couple of months in Visual Studio 2005 express; now I'm trying to run it on other computers and it doesn't work. Of the 4 computers I've tried it on, only 1 successfully ran it. The others get a file not found exception that seems to be for a DLL, but when I put a try/catch around the application initialization (this is based on the sample framework) and found the exception, it conveniently failed to inclu ...Show All

• Nigel-uoh Managed C++ DirectX Devices

  I recently upgraded my Windows::Forms application to use DirectX with Managed C++ (instead of unmanaged C++). Ever since I did it I get exceptions with the following line (even if before I succesfully built and ran my application, containing the line, several times, ) : DeviceList * deviceList = Manager::GetDevices(DeviceClass::GameControl, EnumDevicesFlags::AttachedOnly); (by the way is this an appropriate way for enumerati ...Show All

• BlackTigerX FX10 presentation

   The presentation "D3DX9 Effects Performance" has such text "Also make sure to check out the FX10 presentation". Is it available to general public   Fdooch wrote:  The presentation "D3DX9 Effects Performance" has such text "Also make sure to check out the FX10 presentation". Is it available to general public The Meltdown presentations related to material still under NDA are no ...Show All

• MMotor Multiple object in a scene

  Hi, I am completely new to directx and I need some help!!! I have been going through the tutorials that Microsoft provides with the directx SDK but can not figure out how to create more than one object in a window (I am not sure that I am using the right terms here!). If I want to create two triangles in the same window and the first one is rotating around the z axis and the second one is rotating around the z axis, how do I do that My biggest p ...Show All

• Jim Kelly Simple DirectX 2.0.0.0 question

  I'm wicked confused. the Managed DirectX 9 (v1.0.2902.0) dll doesn't have any XFile handling capabilities. the DirectX v2.0.0.0 has Xfile support but doesn't have ANY documentation support and is much different than 1.0.2902.0. Then i hear both of these are to be replaced with XNA all i want to do is make a managed program that can import Xfiles. MDX 2.0 is not a complete API - its still in beta and since XNA ...Show All

• phatrice April 2006 DirectX stupid question

  The project is named DXScreenClear. After struggling for several days to identify and fix errors caused by undocumented changes in DirectX I almost have this VERY simple tutorial working. But not yet. On the line: Dev = New Device(0, DeviceType.Hardware, Me, CreateFlags.SoftwareVertexProcessing, pParams) I get the error: Value of type 'DXScreenClear.Form1' cannot be converted to 'System.IntPtr'. how on earth do I fix this If 'Me' ...Show All

• markov Video Card support

  What video cards will be able to support DirectX 10 So are you saying that nVidia won't be releasing directx 10 drivers for my flash new (expensive) 7800GTX card in the future Yes, most definitely. You will not be running Direct3D 10 on that hardware! D3D10 requires a minimum feature set to be compliant. This "minimum" is currently higher than anything available on the market. hth Jack ...Show All