if (XNA < DirectX) { drool; } .... DirectX or XNA?

XNA Framework

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    - Tiny Tennis Project Files Okay I am currently just trying to go through the Coding4Fun tutorial on Tiny Tennis. Problem is, I can't even find the project files im supposed to add... where are they exactly Thought they were supposed to be with the download of XNA or am I wrong Frustrating that I am already off to a bad start. Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - 3d collision detecting with level I was just wondering has this is done usally (collision detection with the 3d game level). Would I detect collision with the mesh or make some file which contains boundingBox positions or would I make boundingBoxes in the mesh file Thanks in advance. Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - Effect file parameters Hi, I am unable to understand shaders so I use FX Composer. I created (loaded) an effect to one of my meshes and saved its code. When I try to apply it, I can't see anything. I don't know what parameters should I set so I ask for help. How can I make this reflection effect work Here is the XNA code: foreach (ModelMesh spheremesh in sphere.Meshes) { foreach (ModelMeshPart modmeshpart in spheremesh.MeshParts) { modmeshpart.Effect = reflection.Clone(graphics.GraphicsDevice); } } for (int i = 0; i < spheres.Count; i++) { foreach (ModelMesh spheremesh in sphere.Meshes) { Matrix world = transforms_sphere[spheremesh.ParentBone.Index] * Matrix.CreateTranslation((Vector3)spheres ) * Matrix.CreateScale(50); ; Matrix view = Matrix.CreateLookAt(cameraPosition, (modelPosition), Vector3.Up); Matrix proj = Matrix.CreatePerspectiveFieldOfView(MathHelper.ToRadians(45.0f), aspectRatio, 1.0f, 100000.0f); foreach (Effect currenteffect in spheremesh.Effects) { currenteffect.CurrentTechnique = currenteffect.Techniques["Untextured"]; sphereTrans.Add(new Vector3(world.Translation.X, world.Translation.Y, world.Translation.Z)); currenteffect.Parameters["World"].SetValue(world); currenteffect.CommitChanges(); } spheremesh.Draw(); } At debugging, I can see that the Effect is in the mesh but at drawing nothing is visible. What else parameter should I set Heres is the effect code (long one): /************************************************************************* Comments: A phong-shaded metal-style surface + mirror term. Textured or untextured surfaces. Metallic reflections have no appreciable Fresnel term. ******************************************************************************/ float Script : STANDARDSGLOBAL < string UIWidget = "none"; string ScriptClass = "object"; string ScriptOrder = "standard"; string ScriptOutput = "color"; string Script = "Technique=Technique Untextured:Textured;"; > = 0.8; /************* UN-TWEAKABLES **************/ half4x4 WorldIT : WorldInverseTranspose < string UIWidget="None"; >; half4x4 WorldViewProj : WorldViewProjection < string UIWidget="None"; >; half4x4 World : World < string UIWidget="None"; >; half4x4 ViewI : ViewInverse < string UIWidget="None"; >; /************* TWEAKABLES **************/ half3 LightPos : Position < string Object = "PointLight"; string Space = "World"; > = {100.0f, 100.0f, -100.0f}; half3 LightColor < string UIName = "Light Color"; string Object = "PointLight"; string UIWidget = "Color"; > = {1.0f, 1.0f, 1.0f}; half3 AmbiColor : Ambient < string UIName = "Ambient Light Color"; string UIWidget = "Color"; > = {0.07f, 0.07f, 0.07f}; half3 SurfColor : DIFFUSE < string UIName = "Surface Color"; string UIWidget = "Color"; > = {1.0f, 1.0f, 1.0f}; half SpecExpon : SpecularPower < string UIWidget = "slider"; half UIMin = 1.0; half UIMax = 128.0; half UIStep = 1.0; string UIName = "Specular Power"; > = 12.0; half Kd < string UIWidget = "slider"; half UIMin = 0.0; half UIMax = 1.0; half UIStep = 0.05; string UIName = "Diffuse (from dirt)"; > = 0.1; half Kr < string UIWidget = "slider"; half UIMin = 0.0; half UIMax = 1.0; half UIStep = 0.05; string UIName = "Reflection"; > = 0.4; ////////// texture ColorTexture : DIFFUSE < string ResourceName = "default_color.dds"; string ResourceType = "2D"; >; sampler2D ColorSampler = sampler_state { Texture = <ColorTexture>; MinFilter = Linear; MagFilter = Linear; MipFilter = Linear; }; texture CubeEnvMap : ENVIRONMENT < string ResourceName = "default_reflection.dds"; string ResourceType = "Cube"; >; samplerCUBE EnvSampler = sampler_state { Texture = <CubeEnvMap>; MinFilter = Linear; MagFilter = Linear; MipFilter = Linear; }; /************* DATA STRUCTS **************/ /* data from application vertex buffer */ struct appdata { half3 Position : POSITION; half4 UV : TEXCOORD0; half4 Normal : NORMAL; }; /* data passed from vertex shader to pixel shader */ struct vertexOutput { half4 HPosition : POSITION; half4 TexCoord : TEXCOORD0; half3 LightVec : TEXCOORD1; half3 WorldNormal : TEXCOORD2; half3 WorldView : TEXCOORD5; }; /*********** vertex shader ******/ vertexOutput mainVS(appdata IN) { vertexOutput OUT; half4 normal = normalize(IN.Normal); OUT.WorldNormal = mul(normal, WorldIT).xyz; half4 Po = half4(IN.Position.xyz,1); half3 Pw = mul(Po, World).xyz; OUT.LightVec = normalize(LightPos - Pw); OUT.TexCoord = IN.UV; OUT.WorldView = normalize(ViewI[3].xyz - Pw); OUT.HPosition = mul(Po, WorldViewProj); return OUT; } /********* pixel shader ********/ void metal_refl_shared(vertexOutput IN, out half3 DiffuseContrib, out half3 SpecularContrib, out half3 ReflectionContrib) { half3 Ln = normalize(IN.LightVec); half3 Nn = normalize(IN.WorldNormal); half3 Vn = normalize(IN.WorldView); half3 Hn = normalize(Vn + Ln); half4 litV = lit(dot(Ln,Nn),dot(Hn,Nn),SpecExpon); DiffuseContrib = litV.y * Kd * LightColor + AmbiColor; SpecularContrib = litV.z * LightColor; half3 reflVect = -reflect(Vn,Nn); ReflectionContrib = Kr * texCUBE(EnvSampler,reflVect).xyz; } half4 mainPS(vertexOutput IN) : COLOR { half3 diffContrib; half3 specContrib; half3 reflColor; metal_refl_shared(IN,diffContrib,specContrib,reflColor); half3 result = diffContrib + (SurfColor * (specContrib + reflColor)); return half4(result,1); } half4 mainPS_t(vertexOutput IN) : COLOR { half3 diffContrib; half3 specContrib; half3 reflColor; metal_refl_shared(IN,diffContrib,specContrib,reflColor); half3 map = tex2D(ColorSampler,IN.TexCoord.xy).xyz; half3 result = diffContrib + (SurfColor * map * (specContrib + reflColor)); return half4(result,1); } /*************/ technique Untextured < string Script = "Pass=p0;"; > { pass p0 < string Script = "Draw=geometry;"; > { VertexShader = compile vs_2_0 mainVS(); ZEnable = true; ZWriteEnable = true; CullMode = None; PixelShader = compile ps_2_0 mainPS(); } } technique Textured < string Script = "Pass=p0;"; > { pass p0 < string Script = "Draw=geometry;"; > { VertexShader = compile vs_2_0 mainVS(); ZEnable = true; ZWriteEnable = true; CullMode = None; PixelShader = compile ps_2_0 mainPS_t(); } } /***************************** eof ***/ I have the required texture in every directory, but nothing is visible. What else should I set to make them visible Sorry for the long post. Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - Blurry trail on sprite movement Hi all, I read some posts about problems with AMD processors. I am not sure my issue is caused by that because I have a different processor from the ones I read the posts about. The issue: I have a simple ball sprite. I create a pong-like game. When the ball moves it produces a blurry trail behind it. Like you have with comets in space. The faster the sprite moves, the longer and more noticable the trail. In response to this I have updated the drivers for my processor and grapics card. The result is the same. Beside the blurry trail I notice the movement is always a littlebit choppy. Not extreme, but I think it ought to be somewhat smoother than this. So no I am wondering what might be causing it. Can it be the processor or the graphics card. Or maybee it is the monitor On LCD tv's I've seen the same effect watching a soccer game. My configuration: AMD Sempron 2800+ / 1,61 Ghz / 512 MB Geforce 6800 Xtreem Philips SL120 LCD monitor Thanks, Ton Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - First XNA project & a question regarding pink outlining I am creating a old-style RPG with added bells and whistles and it uses XNA. I threw a character in the game and he has a pink outline around him which is actually what I use for the transparent color. Do I need to do anything in code to remove this I thought I did something similar in Direct3D before when I was first creating the texture. Since GSE does it all for me, I'm getting an unwanted result. Screenshot: http://lh5.google.com/image/philvaira/RZ2EQXve37I/AAAAAAAAAAs/rx381x00kQA/Nral_Alpha_Screenshot_1.PNG.jpg imgmax=800 At any rate, this is my first project using XNA. I have a local team and we are finally putting it into production as commercial-based PC game. Using XNA has really boosted our productivity. For example, my artists don't have to wait long to see results in how their art fits in with the game. At any rate, performance is great and not once have I used a pointer yet :) Lots more to do... Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - How to do anti alias in XNA? How to achieve anti alias in XNA, after a quick search in the document and forums, I got no idea, will some one tell me if it's possible in XNA If not, is there anyway to wrap around that Because without anti alias , the game sometimes looks a little weired! Many thanks! Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - Rotate an object I need am 2D object to be rotate 90 degrees each time a press down a key. What would be the best to do this. I have try to use TransFormatins of a vector but I can't ge it to work. Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - How to associate material info with a ModelMeshPart? So each set of polys in a Model with a common material becomes a ModelMeshPart once you load it into the game. What I can't figure out is how you determine which material got associated with which ModelMeshPart. There don't seem to be any public members of ModelMeshPart that tell you the name of that part, or any way to somehow implant your own "blind" data (to use Maya's terminology) and then read it back. Here is why I want to do this: Say I've got a spaceship model, like in the Spacewar demo. I want the cockpit to have a separate material with completely different properties than the rest of the ship (textures, specular settings, etc.) The SpaceWar demo gets around this with its 2 reflection maps by hard-coding the index of the ModelMeshPart that uses it second, different map, then assigning the different map once the draw loop gets to that index. Aside from the fact that it's a patently terrible way of doing things, I don't want to use that method because it would require me to figure out what index the exporter assigned to each material . . . and I may very well end up with hundreds of Model objects to have to read through by hand just to get the index. I also thought of simply skipping ModelMeshParts altogether and having the cockpit be a completely separate ModelMesh. What is the real way to do this Thanks, Tom Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - RenderDarget2D() exception Hi. I have a problem launching my game on friends computer - "Report problem" dialog appears... I gave him source to compile himself. Now i know, that line: glowMaskTarget = new RenderTarget2D(graphics.GraphicsDevice, graphics.GraphicsDevice.PresentationParameters.BackBufferWidth, graphics.GraphicsDevice.PresentationParameters.BackBufferHeight, 0, graphics.GraphicsDevice.PresentationParameters.BackBufferFormat); ...throws an exception with no helpful information. Code is in LoadGraphicsContent method as automatic content. I got GF 6200 card, and that game runs on one friends of mine computer with same card as well, but in this case, with GF FX5200 - it throws an exception. What device cap could it be Are there some specific tricks to walk-around this Thanks. Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - Protection level to high I have made a game with 2 classes one for the game, and one for the sky box. For the skybox to function properly the class SkyBox needs to get some information from the Gam1 class. When i made a reference on the skybox class to the game1 class it said "Error 1 'Game1.modelRotation' is inaccessible due to its protection level" case 0: //back f = Vector3 .Dot(Game1.modelRotation, new Vector3 (0,0,1)); break ; I think the solution may be to make an instance of game1 somehow but being a C# noob i am unsure on how to fix this. If anyones got any ideas that would be great Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - Drawing a 3d model with shader effects It could just be that I am a complete and total idiot but I have been looking for an easy way to draw a 3d model with shader effects (.fx file). I had orignally guessed it would be easy becuase of the Tutorial 1: Displaying a 3D model on the screen, but that uses basic effects, not an effects file. Can someone please show me a simple way of doing this because I am evidently too dumb to figure it out. I am looking for something like the tutorial draw code... Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - How Do I Determine The Currently Visible Area? I'm building a 3D game and currently have everything working, but I'm in the process of optimizing my framerate. The world in the game is many times larger than the screen/window. How would I go about determining the world coordinates that are visible on the screen Even though the objects outside of the viewport are clipped, the draw code still has to translate (and rotate) the meshes in the objects (many of which will be clipped). It would be much more efficient if I could just not process meshes that will be outside of the screen. Thanks! Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - How can i obtain extra information from a File using Content importer? How can i obtain extra information from a File using Content importer Now i already have made a content importer for my ownfile format, that is ok because i se the importer to extract the texture Infromation from my file... But the problem Is that i have very valuable information in my file format in addition to the texture infromation, This is the code that i use to import the texture content from my files (jki Files): /// <summary> /// Importador de archivos JKI al XNA Content pipeline /// </summary> [ ContentImporter ( ".jki" , DisplayName = "Imagen De Multiples Frames JKI" , DefaultProcessor = "Procesador para archivos JKI" )] public class JKIImporter : ContentImporter < Texture2DContent []> { /// <summary> /// Importa el contenido de un archivo JKI al content pipeline de XNA /// </summary> /// <param name="filename"> Nombre del archivo a procesar </param> /// <param name="context"> Contexto para el content importer </param> /// <returns> Array de texturas extraidas del archivo </returns> public override Texture2DContent [] Import( string filename, ContentImporterContext context) { //Decodificador del archivo JKI DecodificadorJKI decodificador = new DecodificadorJKI (); //Encabezado identificador de la imagen JKI EncabezadoFijo encabezado; //Colores de mascara por cada cuadro informado por el archivo JKI BaseColor [] coloresMascara = new BaseColor [0]; //Mapeador de pixeles PixelBitmapContent < Rgba32 > pixelHelper; //Array de textura a retornar Texture2DContent [] textureContent; //Array de bytes paa capturar la infromacion del archivo JKI byte [] byteArray; //Imagen JKI cargada desde archivo ImagenJKI < Color32 > imagen32 = ( ImagenJKI < Color32 >)decodificador.CargaImagenJKIDesdeArchivo( filename, out encabezado, ref coloresMascara); //Inicializa el array de texturas con la cantidad de frames que existen en el archivo JKI textureContent = new Texture2DContent [imagen32.InformacionBase.NumCuadros]; //Carga cada uno de los cuadros de archivo JKI al textureContent for ( int i = 0; i < imagen32.InformacionBase.NumCuadros; i++) { //Inicializa un nuevo contenedor de datos de pixeles pixelHelper = new PixelBitmapContent < Rgba32 >(imagen32.cuadrosDeImagen[ i ].Ancho, imagen32.cuadrosDeImagen[ i ].Alto); //Cargar la informacion de bytes para el archivo JKI Actual byteArray = ImagenJKI < Color32 >.CuadroImagenJKIAByteArray(imagen32, ( Int16 )i); //Envia los datos de bytes al pixel helper pixelHelper.SetPixelData(byteArray); //Inicializa una nueva textura textureContent[ i ] = new Texture2DContent (); //Carga la informacion de la imagen en la textura textureContent[ i ].Mipmaps = new MipmapChain (pixelHelper); } return textureContent; } } /// <summary> /// Procesador de Contenido para Archivos JKI para el content pipeline de XNA /// </summary> [ ContentProcessor (DisplayName = "Procesador para archivos JKI" )] class JKIProcessor : ContentProcessor < Texture2DContent [], Texture2DContent []> { /// <summary> /// Procesa la informacion enviada por los archivos JKI /// </summary> /// <param name="input"> Array de contenido de texturas 2d </param> /// <param name="context"> ontexto para el content processor </param> /// <returns> Array de texturas extraidas del archivo ya procesadas </returns> public override Texture2DContent [] Process( Texture2DContent [] input, ContentProcessorContext context) { for ( int i = 0; i < input.Length; i++) input[ i ] = ( Texture2DContent )context.Convert< TextureContent , TextureContent >(input[ i ], "SpriteTextureProcessor" ); return input; } } But i need the information contained into imagen32.InformacionBase, coloresMascara Will be returned both too, but off course this will be in the same importer and processor that i show a few lines before this. Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - Official List of Features and Limitations of the various Pixel Shader versions? Does anyone know of an official list of features and limitations for the different Vertex Shader and Pixel Shader versions (1.1, 2.0, 3.0, etc) I couldn't find anything on the Microsoft or nVidia web sites or on the web. I don't even know for sure who governs these standards. Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - Ann: A "Proper" Text Rendering Component Hi! I'm just in the process of writing a proper text rendering component for XNA. It fully integrates into the content pipeline and can import any TrueType font during compile time. Just like any other XNA framework content, an .xnb file is generated from the font which can at runtime be loaded by XNA's ContentManager, eg. BitmapFont myFont = this .content.load< BitmapFont >( "Content/Fonts/Arial" ); // ... this . myFont.drawText( new Vector2 (100.0f, 100.0f), "Hello World" , Color .White ); The component is still in development and there will likely be some changes in its interface, but it's already fully usable. If you want to give it a go, you can find the component here: http://www.nuclex.org/framework/fonts -Markus- Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - Collision Detection in 2D Games Hi, So far I have figured out how to get object moving on the screen. I have also figured out how to detect colissions at the edges of the screen. However, I am having trouble figuring out how to detect the collision between two objects. Say for example, two bouncing balls in a 2D game. How can I detect the collision of this two objects I imagine it has something to do with sine and cosine Thanks, Oblivion. Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - how to find elapsed time? Is there a Windows and Xbox 360 way that I can get the elapsed time between two events For instance, I want to find the ammountt of time the user waited between two mouse clicks. It could be 200 ms, or it could be 5620 ms. I don't need the code for mouse clicks, etc. I just need to know how to get the total elapsed time in milliseconds since the last time I asked for it. Much like getTickCount in the win32 api. Thanks! Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - XNA Starting Well, I got XNA yesterday and i have been trying to figure out how to use it all day. I have used the help but i am still completely lost. Can anyone help me start out Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - MDX: Textures not appearing all the time I have some textures for labels which I have rendered onto triangles within a 3d model. They are Pool.Managed and they work fine normally, I just discovered something odd. By disabling my OnApplicationIdle loop that calls Render() (And it does nothing else) and forcing render from a toolbar button, textures will not render but the rest of the scene does Iv observed the following behaviour when I have my onapplicationidle loop disabled No z buffer / alpha blending - black boxes in place of textures forcing Render() alpha enabled - nothing z + alpha - nothing when rendered from onapplicationdle, success, nice pretty labels, etc forcing render() while onapplicationidle is active does not cause them to dissapear Any ideas on this one Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - can i make3d games in xna Hello everybody i was wondering if i can make 3d games like warcraft or counter-strike and something like that tnx in advance for your answers Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - Mesh Alpha chennal problem? Hi All, I tried to draw few meshs in game. But i has some textures problem. The problem is a meshs collistion another mesh, textures alpha chennal has some problem. Below is capture screen. Who can tell me why How to fix this problem http://hk.geocities.com/brian_tsim/error.PNG Best regards, Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - Multiple RenderTargets with a Final PostProcess Hey, I am playing around with a SceneManager component I am working on and have been wondering how to do something. Right now I have a class called a RenderGroup which can render a collection of items to a RenderTarget and then Post Process the RT with an Effect. I want to take it one step further and have multiple RenderGroups(RenderTargets) and post process all of them one more final time. How is this possible Can I grab the BackBuffer before rendering completes and run an effect on it or something Do I put another RenderTarget in index 1 (instead of 0) or something Speaking of which, what is the multiple indices for when setting RenderTargets Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - wierd error messages ok im new and just starting out im in highschool neways im working on the tutorial and i do exactly what it tells me but i get 13 error messages froem the lines of coding i copied from the tutorial whats wrong //3d model to draw Model myModel; protected override void LoadGraphicsContent( bool loadAllContent) { if (loadAllContent) { myModel = content.Load< Model >( "Content\\Models\\p1_wedge" ); } } } /// <param name="unloadAllContent"> Which type of content to unload. </param> protected override void UnloadGraphicsContent( bool unloadAllContent) { if (unloadAllContent == true ) { content.Unload(); } } /// <param name="gameTime"> Provides a snapshot of timing values. </param> protected override void Update(GameTime gameTime) { // Allows the default game to exit on Xbox 360 and Windows if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed) this .Exit(); // TODO: Add your update logic here base .Update(gameTime); } Position of the model in world space, and rotation Vector3 modelPosition = Vector3.Zero; float modelRotation = 0.0f; //Position of the Camera in world space, for our view matrix Vector3 cameraPosition = new Vector3(0.0f, 50.0f, 5000.0f); //Aspect ratio to use for the projection matrix float aspectRatio = 640.0f / 480.0f; protected override void Draw(GameTime gameTime) { graphics.GraphicsDevice.Clear(Color.CornflowerBlue); //Copy any parent transforms Matrix[] transforms = new Matrix [myModel.Bones.Count]; myModel.CopyAbsoluteBoneTransformsTo(transforms); //Draw the model, a model can have multiple meshes, so loop foreach (ModelMesh mesh in myModel.Meshes) { //This is where the mesh orientation is set, as well as our camera and projection foreach (BasicEffect effect in mesh.Effects) { effect.EnableDefaultLighting(); effect.World = transforms[mesh.ParentBone.Index] * Matrix.CreateRotationY(modelRotation) * Matrix.CreateTranslation(modelPosition); effect.View = Matrix.CreateLookAt(cameraPosition, Vector3.Zero, Vector3.Up); effect.Projection = Matrix.CreatePerspectiveFieldOfView(MathHelper.ToRadians(45.0f), aspectRatio, 1.0f, 10000.0f); } //Draw the mesh, will use the effects set above. mesh.Draw(); } } Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - mipmapping Hi, i've loaded some fbx models via the content pipeline with integrated textures. can i tell the loader routine to auto-generate mipmaps when loading textures integrated in fbx models or how can i postgenerate the mipmaps out of the models. sorry for my english ;) thx #pragma Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - Calculating normals for large mesh with no vertex to triangle info I have a mesh of 100.000 triangles where I need to calculate the normals for the vertices. The datastructure, I am using, does not point from vertices to triangles, but only the other way arround. I therefore defined my vertex normals as the sum of the triangles using them, weighted by the triangles size. I simply set all vertex normals to zero and then run through my triangles (when running through them anyway for some other task) and add a triangles normal (weighted) to the vertices it uses. The I run through all vertices and normalize the normals. This is suposed to give me a valid normal for the vertices. I am not much liking waht i see though. The entire terrain is filled with little pyramids. Light ones and dark ones. When I look at the normals, by a pixelshader that outputs the normal as a color, it is obvious that the problem is in the normals. I can however not figure out what the problem is. I would say that my method is correct, and I am rendering pr pixel diffuse lighting, which should be correct as well. The result is not right though. It looks like a silly impersonation of goraud shading. A problem that I can see is normals which are summed together to form a null normal, which is thisn normalized to either an error, or if there was some roundoff error, it can be normalized into anything. It doesnt apear to what happens, and if it was, I would not expect to see it that often. I have been cursing at this for two days now, and I could really need some advice. Any hints, as to where I might be doing something silly, will be greatly apresiated. screenshots: www.greenleaf.dk/pyramid/terrainSolid.JPG www.greenleaf.dk/pyramid/terrainWire.JPG www.greenleaf.dk/pyramid/terrainNormals.JPG www.greenleaf.dk/pyramid/terrainNormalsCloser.JPG Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - creating installable driver hi... can anyone here please help me to create a virtual camera and its driver... thanks Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - Loading an .FBX file Hi, I have this file, Ferrari_Enzo.FBX that is supposed to be XNA ready, all I want to do with this is load and display this model in the blue window. My assumption is my problem was setting a camera position. I've done some searching but can't find this decent question addressed. Could I please see a basic sample for this Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
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    - Problem using .FBX file I have a model that I downloaded off of TurboSquid. I pulled it into 3DS MAX 9, and exported it as an FBX file. I added it to my project, and when I try to compile I get the following error: BasicMaterial has a texture, but geometry does not contain texture coordinates. Is this a problem with 3DS or GSE Any ideas on how to fix it Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
  - 13
    - Creators Club??? How do I join the Creators Club I don't see it anywhere in XBox Live Marketplace. Don't you have to have this subscription to *test* XNA games on the XBox 360 And if so, how then are people already exchanging their work I could not find the Club from the All Game Downloads as described in Step 2 here: http://msdn2.microsoft.com/en-us/library/bb197292.aspx Jon Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
  - 14
    - (Clip) Plane transform? Hi all -- I'm porting a water shader to XNA, but first I need to get my clip planes right. I noticed we still need to unproject the plane from camera space to world space, but I cannot find a method that actually allows to transform a plane! Like the MDX Plane.Transform method used to do. I tried to transform 3 world points with the inverse of my world*view*proj matrix, and create a plane including these points, but no luck. Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
  - 15
    - Getting multiple errors back from the effect compiler? I'm using the effect compiler (specifically the Effect.CompileEffectFromSource method) to compile effects on the fly, and was wondering if anyone knew a trick to getting more than just the first error back. It's kind of annoying to not get them all back at once, but I'm not seeing a way (via CompilerOptions) to have it continue. I'm worried I'll have to build my own yaccer :( And as a sneak peek, here is a screenshot of an early build of the tool I'm writing - it's a minimally invasive drop in shader editor (requires about 4 lines of code in the host project to set up - maybe less if I create a GameComponent wrapper). It will probably go up on CodePlex in a week or two. http://www.hiranipra.com/data/help_attach/ShaderDesigner1.png Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.
  - 16
    - Calculating normals for large mesh with no vertex to triangle info I have a mesh of 100.000 triangles where I need to calculate the normals for the vertices. The datastructure, I am using, does not point from vertices to triangles, but only the other way arround. I therefore defined my vertex normals as the sum of the triangles using them, weighted by the triangles size. I simply set all vertex normals to zero and then run through my triangles (when running through them anyway for some other task) and add a triangles normal (weighted) to the vertices it uses. The I run through all vertices and normalize the normals. This is suposed to give me a valid normal for the vertices. I am not much liking waht i see though. The entire terrain is filled with little pyramids. Light ones and dark ones. When I look at the normals, by a pixelshader that outputs the normal as a color, it is obvious that the problem is in the normals. I can however not figure out what the problem is. I would say that my method is correct, and I am rendering pr pixel diffuse lighting, which should be correct as well. The result is not right though. It looks like a silly impersonation of goraud shading. A problem that I can see is normals which are summed together to form a null normal, which is thisn normalized to either an error, or if there was some roundoff error, it can be normalized into anything. It doesnt apear to what happens, and if it was, I would not expect to see it that often. I have been cursing at this for two days now, and I could really need some advice. Any hints, as to where I might be doing something silly, will be greatly apresiated. screenshots: www.greenleaf.dk/pyramid/terrainSolid.JPG www.greenleaf.dk/pyramid/terrainWire.JPG www.greenleaf.dk/pyramid/terrainNormals.JPG www.greenleaf.dk/pyramid/terrainNormalsCloser.JPG Tag: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA? Game Technologies: DirectX, XNA, XACT, etc.

Seraphino

I have been wanting to develop a game for a while now, and I am finally getting all my technologies together. Basically, I want to create a simple RTS that models that of starcraft because I am a major fan of that game.

The problem is, I can not seem to decide if XNA will be able to do what I want it to do, or will I have to move to DX9c.

I want to have multiplayer support as 1 of my big things, since the best thing about Starcraft is it's multiplayer, and I see that XNA does not have support for that sort of thing and certainly not an easy way to implement it.

If you have any suggestions I would appreciate them, thanks.

PS: My C++ skills are absolutely terrible, so I would probably have to learn C++ to use DX9c unless you can use it with C#.

Re: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA?

Jim Perry

Yes, XNA is capable of doing a Starcraft clone. As for multiplayer, you can use the Network classes in .NET for PC games. There's not networking in XNA for the 360 yet.

Re: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA?

Seraphino

Thanks for the reply, I have one more question, would it be better to do a Starcraft Clone in 3D or 2D with an Isometric viewscale

I was thinking about doing Isometric, but I do not know how to quite go about it with XNA.

Thanks.

Re: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA?

dczraptor

well, starcraft uses an isometric viewscale, and all the "models" are just sprites. If you don't know how or have the resources to create models and textures, creating sprites is much easier. However, most game companies don't like you using their intellectual property, so watch out for that.

Re: XNA Framework if (XNA < DirectX) { drool; } .... DirectX or XNA?

Jim Perry

While it isn't iso view, the theory of this tutorial is the same. If you don't have the knowledge of 2D, 3D would probably be out of your reach at this time so just try 2D.