Answer Questions

• tempgp 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

• Nilmar P. Castro DX SDK size and satellite ISPs - It's too big!

  I recently relocated to a rural area where satellite is the only "broadband" available. Satellite providers restrict bandwidth, and I now find myself in the nightmarish situation of being unable to download the DirectX SDK because the file size is simply too large! So this post is on the form of a plea: please make the SDK available in smaller chunks (less than 200 MB would be good) so those of us deprived of unlimited Internet acce ...Show All

• vladgrig Bad results

  Hi! When executing my pixel shader, results are ok. But when I execute with my recent new grpahic card Quadro FX 3400/4400 results are rubbish. Exactly what happens is that! In my pixel shader I have these four operations Output.weights.x = (1-frac2.x)*(1-frac2.y);\n" // 1 float output Output.weights.y = frac2.x*(1-frac2.y); // 1 float output Output.weights.z = (1-frac2.x)*frac2.y; //1float output Output.weights.w = frac2.x*frac2.y; // 1float o ...Show All

• oergelmir HELP ME PLEASE

     I've download the new DirectX (october2005)SDK uppdate, but i'm having problems create a Direct X application. It doesn't show-up in the new projects menu under Visual C++ or any of the other Languages. What would anyone recommend as the solution for this problem. It should have installed new projects.  Your other option is to run some of the samples that came with DX, and use one as a sh ...Show All

• mjr85 Pivot/center point in x.file

  I'm a total newbie, so appoligize if this is a stupid question. How can I set the pivot point of my 3d model (x.file). I'm loading a car model and the pivot point is set to the left side of the car. I want the pivot point to be at the center of the car for easier formulas for moving/rotating the car. How can I do this If I approaches this the wrong way pleas tell me. Thank you both of you:) I finaly understand ...Show All

• FrancoA XBox - Managed Code

  I’m just wondering if anyone knows if Xbox 360 supports any type of managed code (mc++, c#). We're about to develop an engine and we can’t find any information about this. We wanted to use c# for the scripting of the game so if anyone knows it would really help out. Thanks. Publicly available information is very sparse, if at all existant, for XBox360. I was reading online that even "regular" Microsoft employee ...Show All

• SANDEEP MAMUNURI Everything in viewpoint is backwards

  Hi,   I have been working on a small 3d engine for the last few weeks, no big plans for it or anything just doing it to teach myself. Everything has been going ok so far, been working off internet tutorials and examples but i have run into a problem, everything in my viewpoint is backwards. Screen Shot:   www.turnipfan.com/screen_shot.jpg I have tried changing all the settings but nothing seems to work, i was wondering if s ...Show All

• x21hx MDX, where do I put the symbol files?

  Sorry for the newbie question, but where do I put the Symbol files I am using April 2006 release, VS2003, MDX, x86. Thank you. Well I didn't have that directory, but after a little hunting I discovered that its a separate download. http://www.microsoft.com/downloads/details.aspx familyid=562D72FC-61C8-41A3-8BFF-509466F3D6AA I always assumed these were for C++ only but you are correct that there are symbols for the managed assemblies ...Show All

• Martin_NL How to save the game?

  This may be a dumb question, but how can I let the player save the game If someone could point me in the right direction I would appreciate it. I saw a few examples of xml on the internet, but there is probably an easier way. I guess I would have to save all the tile rendering info because my game generates a random level every time. Thank You Hi, you have to save the current state of the game, i.e., al ...Show All

• _Roland 16 channel Real Time signal rendering: Should I go gor DirectX?

  I'm refurbrishing an old VB6 application that displays up to 16 signals, at 100 samples per second, along with some icons on the screen. The user decides on the on-screen resolution by means of a zoom function key. Now in the design phase, I need some more information to decide on taking Direct-X or GDI+ path. I've been going through several sample applications, and so far, I've got the feeling that Direct-X is suited to heavily drive the ...Show All

• Ean L. Towne Probably stating the obvious here...

  I am making a game using visual studio .net 2003 with directx 9 2005 update.  I create a deployment project with visual studio that includes all directx.dll files and other detected dependancies.  I deploy the game to the computer on which it was developed and it works fine. Now I want to test the networking so I deploy it to a laptop.  The laptop is running windows xp with SP 2 (so .net framework is there obviously)  I ...Show All

• Ricky Vega nvidia shadow volumes

  im trying to get nvidia's stencilShadow.fxproj working in my engine. http://download.developer.nvidia.com/developer/SDK/Individual_Samples/MEDIA/projects/stencilShadow.fxproj but im not sure on how to get it working. all i get is a black mesh drawn. at which point do i need to clear/use the stencil buffer i noticed that if i change ColorWriteEnable to 1 in passes 'back' and 'front' i can see the volume extruded code: public override v ...Show All

• euton_l How draw the line of picking?

  hi: I want draw the line of picking. I can draw the line, but when move camera, the line would move too. How can do this What transformation must apply Sorry for my english. Thank at all.- the line from the mouse to the object that you have selected. I obtain a point source and the direction, all in world objects. The problem ocurrs when move the camera. ...Show All

• DMahalko Directx 9.0 with C# 2005 Express

  I saw some great Webcast videos on MSDN Introducing 2D Gaming with C#. I have downloaded and installed, DirectX 9.0. The videos referenced Visual C# 2005 Express. I downloaded some sample code and tried to run it. The error was it couldn't find the Microsoft.DirectX referenced. I tried to add the referenced in the .NET tab none of the DirectX assemblies were available. One possible problem is the webcast videos referenced an earlier version o ...Show All

• Keith D how to save a progressive mesh to a .x file?

  When using ID3DXPMesh to simplify the model, I want to export the data of a progressive mesh to a 3D file. I know D3DXSaveMeshToX can save ID3DXMesh to a .X file, but how to save a progressive mesh to a file Any suggestions will be appreciated. Thanks a lot:) Lily Thank you for your suggestions, it's helpful. But the ID3DXMesh object has more vertexs than the original pr ...Show All