Answer Questions

• ambe Multi-core programming

  Will the XNA Framework allow assigning threads to specific cores on the 360 Or more generally, how will XNA Framework interact with the 360's cores and hardware threads Shawn Hargreaves wrote: Xbox threading is somewhat different to on Windows. It is a much more explicit model: you tell the OS which core each thread should run on, and then the OS keeps out the way and leaves you to it. Wheras on Windows the OS is far more sophisticated (and heavyweight) doing all sorts of automatic allocation behind the scenes even if you don't specify an explicit affinity. We figured that since the underlying OS concepts are quite different, and anyone writing multithreaded code probably cares enough about perfo ...Show All

• Spanglishone how to draw other language type in the XNA?

  i want to create a 3d chat room, player can write type to send my server, but!~how to draw other language type in the XNA i am a chinese~~thx~ Hello mate, still struggling with this I think you need to accept the fact that XNA was primairily developed to target the Xbox 360 platform, which doens't use Windows, nor a sophicticated input device, let alone a software input device. Although this might be supported in the future, through USB peripherals. If you are targetting Windows games, simply use Dx9, or Managed Dx9, where the latter also support the c# programming language. Good luck, Allright, jsut for my own information, how does the regular input e ...Show All

• John Mathews Newbie question

  Hi all, Having some issues building the default "My Space War" project in XNA. It builds fine but dies and gives me an error prompting me to send the information back to MS. Any ideas about why this might be Thanks! If the project was created as an XBox 360 project, and then you change the target to Windows, you will get a runtime error. It could be that your graphics hardware can't support the shader levels necessary to run XNA, and in particular the shaders required by Spacewar. XNA requires at least Pixel shader 1.1 support, and Spacewar requires Pixel Shader 1.1 and Vertex Shader 1.1 support minimum. If you post the entire error msg, incl ...Show All

• Lawrence Parker Official Update

  Now go register!!   Actual contest details to come the week of Feb 5th Plese, Someone at Microsoft.... the drembuildplay site, even though the competition should be global, does not allow non-US people to register. I don't live in the U.S., so I can't choose any state, the zipcodes in my country are 6 digits long, and the telephone numbers are not in the US format.  Edit: didn't see errolian's post before i posted this. P.S. did I mention I passed from neutral state, to exalted state and then down to low-morale state in about 2 minutes .... does this make me emotionally unstable I don't really know any valid zipcode and phone number for the US, ...Show All

• MikeH2005 Shader from SDK throwing Exception?

  Hi, I'm having problems getting a shader (glow.fx) from the DirectX SDK to work within XNA. The following error is being thrown by DrawIndexPrimitives: An unhandled exception of type 'System.InvalidOperationException' occurred in Microsoft.Xna.Framework.dll Additional information: Both a valid vertex shader and pixel shader (or valid effect) must be set on the device before draw operations may be performed. I stripped out all the excess code and resorted to a sample from the XNA documentation (Effects I think it was) and replaced all the expected fields, so the initialisation looks like this: effect = content.Load< Effect >( "Glow" ); effect.Parameters[ "View" ].SetValue( view ); effect. ...Show All

• Mark Dooley moving direct3d object with mouse

  Hi, Does anyone have any idea of how to move a direct3d object with mouse movement I am using Visual C 6.0 and I have extracted the coordinates of mouse using GET_X_LPARAM and GET_Y_LPARAM in WM_MOUSEMOVE. I provide these coordinates to the D3DXMatrixTranslation function where I translate my object to these coordinate positions by x/480 and y/640 where 640x480 is my screen resolution and x,y are the coordinates received by above procedure. My z remains constant. My object moves in that direction in which I move my mouse but never to that point where my mouse is. I know the procedure I have adopted has some mistakes and I have to manipulate the matrices in some way but I don't know how. Can anyone please help This is very urgent. Thanks in ...Show All

• pwhitaker Dream-Build-Play: Where are thou?

  Well, on the webpage it states: The Dream-Build-Play Challenge #1 starts the week of February 5 th , 2007. Brush up your skills this weekend and be ready first thing next week. And if I know how to read a calender right, then that run has passed, and we should have that thing now. So whats the status on that Do anybody know My team is falling apart because we have to wait and wait and wait, and the deadlines keep exspanding. Whats the deal Really my question is why they havent posted any info yet. Because being such a large company with so much exposure, et cetera... I am sure there are lots of legal issues to go through, decisions to make, et cetera. These thi ...Show All

• Batikit How to get a lit sphere colored sphere/cube in XNA

  I've been trying to do this for the past few days asking many questions to get to this seemingly simple goal, but i just run into problems at every step. In MDX I just created a mesh object, then: myMesh = mesh.Box(...) or myMesh = mesh.Sphere(...) In XNA I've had to go through making custom vertex formats, manually drawing all the sides of the box, and now even worse it seems I have to manually input the vertex normals and am STILL unsuccesful...i have no idea if i'm expected to do this for a sphere. This seems too massive a step back for something that is supposed to be superior to MDX, so I clearly have to be missing out on a key point... I realised MDX is being discontinued and i decided to move on to XNA, but I'm considering just goin ...Show All

• lig Curve drawing

  I have an array of 256 floating point values which I would like to draw as a curve, are there any functionality in DirectX which I can use to get a smooth curve. I recon I could use ID3DXLine for actually drawing but I wish to smooth the curve to get a nicer appearance. Nope... No direct support for curves. You can do it by drawing many line segments that connect the curve points, or you can have a pixel shader rasterize the line for you, although that might be an overkill. ...Show All

• Dr.Pepper 2d graphics how to animate a sprite

  Could someone please post the source code that is needed for how to animate a sprite that is an example in the xna game studio express help that is in the programming guide section under graphics. Could you also please post a animated sprite sample to go with the code. I could not get that example to work. I tried to debug my program but the program stopped responding. Needless to say, I am not a programer and never used C# before. But I am trying to learn how to use the xna game express . Thanks. I have a tutorial on animating a sprite on my site. Here is the link. http://www.xnadevelopment.com/tutorials/thewizard/theWizard.shtml Basically, the tutorial covers making a character walk, duck, jump and s ...Show All

• Alaa M XNA - Effects / Shaders

  Hello... Does anyone have a few links to articles on shaders and effects I'd like to see some technical information about them to clarify the questions I have ... Also XNA tutorials about creating them are very appreciated. Thanks The effects and shader stuff is a simple wrapper for the D3DX Shader Framework. Any tutorial about HLSL/FX/etc. regarding D3D9 will do. Or just check the DX SDK samples, full of shaders. And google will help you too... I would suggest developing shaders in a designer application like RenderMonkey or the tool from nVidia (forgot the name, sorry). Even 3D Studio MAX has built in shader support... and can render directly to the modelling viewports, this is lots of fun ...Show All

• Jes&amp;#250;s L&amp;#243;pez How can I install XNA Game Studio Express over Visual Studio Std or TS?

  I understand the support for VS Express to use XNA Game Studio Express, but as a professional developer, but a hobbyist game developer I don't want to have to install VS Express. Any plans or hacks to get it to install over VS instead of VS Express I got the impression it required VS Express installed to work with comments like "Express and Standard can be installed side by side". Seems silly that you'd need freely down-loadable package to get it to work. But, that's just me. You can't even install it unless c# express is present. They live side by side quite happily. There may be a future product that support other VS Skus but not this one. Please search the forum before posting this question has been discuss ...Show All

• Ben Amada Creative X-Fi support

  Hi I was wondering if XNA / XACT can support the advanced features of Creative's X-Fi range of soundcards. I mean things like preloading sounds using X-Ram which is supposed to help increase frame rates. Thanks for relocating my post Michael - I should have realised. Just to add to my initial question, I understand developers use a version of the OpenAL SDK (cross platform, incl. the 360) to develop audio solutions that leverages the advantages of the X-Fi s/c. So does XACT also use openAL so that developers using XNA can take advantage of the X-Fi capabilities such as X-RAM Or Does XACT provide its own solution to use the advanced features of this audio card Hi, ...Show All

• Cordell Swannack How to resize the window

  I am working on a 2D pacman game, and I need the window to be in the exact increment as my tile sizes which are 16 x 16 and 32 x 32. I was wondering if anyone knew how to resize the application window. Thanks in advance for the help. Thanks guys that helped a lot for beta 2 you can do this: graphics.PreferredBackBufferHeight = 500; graphics.PreferredBackBufferWidth = 500; graphics.ApplyChanges(); but as far as the second answer, since theres no graphics properties thing like we had in beta 1, is there another option for changing the window size, other than coding thanks m In your game start code, you need to do something like this. //Set the screen height and width ...Show All

• anita punjabi The values used in the attempt to create the GraphicsDevice were invalid.

  Is this because my graphic card does not support shader model 2 I didn't even know of this requirement till I saw it on the readme file. Time to change my geforce4 Hi Aaron What type of graphics hardware do you have Struan wrote: I got it to work. Add this line after the Graphics component is created: graphics.AllowMultiSampling = false ; Then in the WindowsGame_Starting function set graphics.AllowMultiSampling equal to false again. THAT WORKED!! Good on ya mate This is a congratulatory sheep -> And apparently I'm unable to make edits to my posts. Anyway, the error is this (it happens at runtime): "NoSuitableGraphicsDeviceException was unhandled&qu ...Show All