Answer Questions

• Aton A pixel shader computation: precision problem?

  Hi, I do the following computation in a pixel shader:   const float texel = 1.0 / 128.0; result = floor(In.texcoord.w / 16.0) / 64.0 + texel   In.texcoord.w containes an integer value between 0 and 299, stored as a float, interpolated over the triangle, where each vertex stores the same value, so in practice there shouldn't be any interpolation happening.  When I output result as a color, I notice distortions ...Show All

• Andrae Behrens How to get multi devices through directinput, Thank you!!

  As the titile If I have two joysticks or two keyboards in the computer How to get the press event of the two devices... Thank you!! Which language are you accessing DInput via (C#, VB6, VB.Net, C, C++...). I'll assume you're dealing with DirectInput8 as that's been the current version for years now In my experience it should be as simple as creating multiple IDirectInputDevice8 objects - one for e ...Show All

• makurob DirectInput not recognizing wired Xbox 360 controller for Force Feedback

  I want to implement force feedback in a game I'm working on. The controller is reocignized fine without checking for force feedback. So if I write... //create force feedback capable joystick device. foreach(DeviceInstance di in Manager.GetDevices( DeviceClass.GameControl, EnumDevicesFlags.AttachedOnly)) { joystick = new Device(di.InstanceGuid); break; } if (joystick == null) { //Throw exception if joystick not found. throw new Exception(& ...Show All

• jayakris DirectX10 only on Vista?

  I've searched everywhere but all I can find is rumors, rumors and even more rumors. Will the final version of directX 10 run on windows XP Microsoft know, and it has been very very well documented that DX10 will never run on XP. Aero is also not availalbe on XP However Aero and media features do not currently require DX10 hardware. They use DX9 on vista. Right now there are no DX10 only games. Give ...Show All

• Brannon Jones Real time sound processing

  Hello. Although this is not a game-related question I figured I might as well post it in this forum because users here have a lot of DirectSound experience. I need to find a way to capture audio from the microphone, apply some effects to it and then output this back to the microphone stream, so that other applications which are recording from the microphone would receive the modified audio. I was wondering if this is possible with ...Show All

• man_25 Creating your own file formats?

  I'm wondering how to create a file format, for say, meshes. I've looked around on the net but I have not found anything telling how. Anyone know of articles/tutorials The .x file should be enough in the beginning. Generally graphics formats are defined by the editor they come from and there is example code to read the big ones (maya and 3dsmax). Otherwise export as .x and then read into your program http://www.wotsit.org/search.as ...Show All

• Damodar Periwal Moving around in my 3d map..?

  Hi there! I have created a test 3d-map (X-format) and this maps materials and textures is loaded onto a sceneMesh. Then I move around adding/subtracting values to three floats: x , y and x in the following code: device.Transform.View = Matrix.LookAtLH( new Vector3(0,0, z+10.0f), new Vector3(x,y,z), new Vector3(0,1,0));   When you press Left 1 is added to x and Right subtracts 1 from x . Up subtracts 2 from z and Down adds 2 to z ...Show All

• Joseph Ollero Uninstalling DirectX

  I have version 9.0b and I was trying to upgrade to 9.0c, but got an error during installation saying a required cabinet file cannot be trusted. At first I just thought this meant the file to install 9.0c was damaged so I got a new installer from here, but got the same error. So I figured there was a problem with the DirectX already installed on my computer. I went into DXDIAG and after only about 30 seconds it crashed my computer while it was sc ...Show All

• Jurgen SetClipPlane ????

  Hi, I'm trying to create a mirror. I got the render to texture thingy done. I'm first using the technique of calculation the "virtual camera" position behind the mirror, then render the scene from that position. I need to somehow "clip" the scene to the boundaries of the mirror, so i guess theres two ways to do it. One is to set the clip planes using device->SetClipPlane(...), but ... help ... help :) :)        ...Show All

• Padschild Alpha Maps with the Sprite class

  Does anyone know how i would use an alpha map with the sprite class i was using dated texture image editors... my only bmp option is 24bit I loaded the bmp into the dx texture editor and then loaded the alpha map and saved as dds. Thanks for the help Dustin_H Right, That's done in the actual texture. basically, some file format support alpha channels, and some don't.  bmp supports alpha channels. If you open up your sour ...Show All

• hiobx Starter Help

  Hi, I have been in development since last one year. now I want to make a 3D game with my skills in Vb.Net only. Can any one suggest the correct roadmap for me to become a Game programmer / 3D game programmer. Where can I find good tutorials on it. Thanks, If you have a look here there are some good starter tutorials on VB.Net programming and DirectX. http://www.vbprogramming.8k.com/ Mykre, www.ircomm.net Managed DirectX and Game Progra ...Show All

• Larokas Updating textures with SetRenderTarget

  I'm working on the terrain rendering technique which involves displacement mapping. I have a couple of textures that are, logically, the mip-map of the terrain. Now, I have to update them all, from the biggest to the smallest, and to do so I do the following: device->GetRenderTarget(0, &oldRT); device->GetDepthStencilSurface(&oldDSS); device->BeginScene(); for (i = 0; i < levels - 1; i++) { // // Set the current texture as d ...Show All

• Saka69 How do I develop games for the XBox 360?

  The starting point to learn how to build games for the XBox 360 is here . In a nutshell though, building games on your PC using the DirectX SDK is the best starting point for building games for the XBox 360. The Xbox 360 is not designed to be a stand-alone computer running an operating system.  In spite of the wishful thinking of many people Hi!! Where I can find a SDK to XBOX I Whant to star develop VideoGames in XBOX H ...Show All

• Siebe weird sprite positioning behaviour

  I am currently designing a simple 2D breakout game using Direct3D. I created a custom sprite class that allows easy drawing of 2d graphics. However, my problem started when I decided to scale some of my sprites. When i call Sprite.Draw2D (or even Sprite.Draw), and I specify a rectangle for the DestinationRectangle parameter that is larger than the size of the texture (thus, scaling the sprite). If i were to then draw this sprite on the scr ...Show All

• Getownse Debugging program that won't start

  Whenever I try to start my program, I get a dialog box saying "The application failed to initialize properly (0xc0000022). Click on OK to terminate the application". With the debugger, it does the exact same thing, giving me no opportunity to find out what is going on; if I try to break it once the dialog box is up, I get another dialog "Unable to break execution. Please wait until the debuggee has finished loading, and t ...Show All