Thanks for any help
How do the proffesional videogame programers load a 3d model?
Game Technologies: DirectX 101
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- Rotating points in 3D I'm not sure if this is helpful specifically to DirectX but I can give you a general overview on transforming points in 3d, and on rendering 3d points on to a 2d plane. In 3d space you have the 3 standard basis vectors e1 e2 and e3, one is pointing in positive x dir (length 1) the other in y, the next in z. So we have: e1 = (1,0,0) e2 = (0,1,0) and e3= (0,0,1) Now if you want to rotate a vector by n degrees on some axis. simply rotate e1 , e2, and e3 by n degrees on that axis , the new values for e1, e2 and e3 will be the columns of your transform matrix. For example if we rotate e1(the x Axis) 90 degrees about the z Axis in the negative x direction the new vector will obviously be pointing towards the y Axis so the transformed vector is : (0 1 0) now rotate e2 and we get (-1, 0, 0) rotating e3 about the z axis gives no change so t(e3) = (0,0,1) from this we make our transform matrix: 0 -1 0 1 0 0 0 0 1 that's all there is to it, if you use angles other than 90 you might need to figure out the components of the vector using simple trig but other than that it's easy Projecting points on to a plane is a bit tricky to explain To find the Y coordinate: You calculate the distance of the object (point) from you in the xy plane: dist = sqrt((myX-objX)^2 + (myY-objY)^2) you can then find the Y coordinate using this inequality: (ObjZ-MyZ)/dist = (screenY) / focalLength You choose an arbitrary focal Length (this will determine how skewed the image is!) Finding X coordinate is done in much the same way: (ObjY-MyY)/(ObjX-MyX) = otherFocalLength/(screenX) MyX, Y, Z are your camera coordinates, you might have to play around with the camera position and focalLengths to get it to look perfect. All you are really doing is using properties of similar triangles I dunno if that helps you at all but it's good to know how things work, and transform matrices are certainly very important Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- error when loading 3D model That error means you have more than one skeleton attached to your object. Do you have any kind of animation or skinning set up in your Max scene Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- What's the competition like? I'm also working on a project for the competition. You probably all know about my game, but I've got a few surprises which I'll reveal later. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Strange DX9 vertex glitch I guess I wasn't very clear. The first image has no post-processing whatsoever. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- About XNA GS Release Great, thanks Jim. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Crash in fxc with April 07 SDK Thats pretty much how I heard it. There used to be major releases 2x per year but the game studios gave MS feedback saying they would rather have more releases per year with specific bug fixes. Unfortunaly outside the gaem development studios people are very used to APIs being updated once per year and being mandatory upgrades so they follow this philoso[hy with DX - which gives wild results. And yes 'follow the money' is a great quote - I use it all the time when people *** about this and that in the SDK. Its sad but true that the DX SDK really is for those big players and the rest of us just take what we can get :-) Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Buttermilk Game Engine / Gui Engine I've submitted for a project at CodePlex. I've officially named it the Buttermilk Game Engine! The GUI portion is named the Buttermilk Gui Engine. Both are acronymed BGE, which is the same as the initials in my name. Pretty clever eh ;) Hehehe... I typed up the current features list like so - Buttermilk is the game engine I'm building for the 2D XNA game "Rogue Bishop". It's a very easy to use 2D engine which additionally supports 3D objects in the 2D scene graph. It currently includes the beginnings of an advanced but simple to use dynamically skinned GUI system. The GUI system is completely separated from the 2D game engine in its own project module, and can be used in any XNA application, 2D or 3D. Current features include - * Sprites which can be dynamically changed from 2D to 3D on the fly * Tile Layers * Tile Maps * Framework for an MVC GUI system which already includes a GuiMouse, GuiScreen, GuiPanel, GuiButton, a monospace text system, and a truly dynamic GUI skin system * A non-rotational, rectangle-based collision system * A non-rotational, rectangle-based physics system * Complex animated sprite system using key frames (unstable due to lack of testing) * Complete serialization / deserialization of many key game objects like tile maps, key animated sprites, etc to / from disk (no editors yet though!). * A nice particle system which can use animated 2D or non-animated 3D objects. * Optimized batch rendering system * 2D scenegraph which transparently interoperates with 3D models * %100 automated content loading / unloading / reloading system. * Resource management system makes sure you never load the same graphics in memory twice. This project, once the GUI system is finished and the code is stabilized, will be very handy for your game. Use the 2.5D game engine with the GUI, or use the GUI system in any type of game all by itself. So anyways, yay for me :) Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Do all DX10 cards support SM4 The Linux driver is open source. Not sure about the windows driver. I have taken a look at the Linux version some time ago and I have seen things that smell like D3D10 but other things are missed in the driver. The problem with the code is that is hard to understand as it is only the code. The technical manual that was used to write the driver is AFAIK not public. Therefore it is hard to say it is only a software or a real hardware limitation that holds them back. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- PC and XBOX in one project? Life saver... thank you Jim. I stuck to the older Visual Studio to long it seems =) Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Reference rasterizer Haha... Finally i got some time (beside my job... so dont say it my boss ) and get it up running... I just took my own class wich inherits from the standard GraphicsComponent and override the FindBestDevice Method in wich the Exception is thrown... then create your own GraphicsDeviceInformation and return it... an you got your reference rasterizer... public partial class myGraphics : Microsoft.Xna.Framework.Components. GraphicsComponent { protected override GraphicsDeviceInformation FindBestDevice( bool anySuitableDevice) { try { return base .FindBestDevice(anySuitableDevice); } catch ( NoSuitableGraphicsDeviceException ) { GraphicsDeviceInformation info = new GraphicsDeviceInformation (); info.CreateParameters = new GraphicsDeviceCreationParameters ( GraphicsAdapter .DefaultAdapter, DeviceType .Reference, Game.Window.Handle, CreateOptions .SoftwareVertexProcessing); PresentationParameters pp = new PresentationParameters (); pp.BackBufferWidth = this .BackBufferWidth; pp.BackBufferHeight = this .BackBufferHeight; pp.BackBufferFormat = this .BackBufferFormat; pp.AutoDepthStencilFormat = this .DepthStencilFormat; pp.EnableAutoDepthStencil = true ; pp.IsFullScreen = this .IsFullScreen; info.PresentationParameters = new PresentationParameters [1] { pp }; return info; } catch ( Exception ex) { throw ex; } } } Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- XBox 360 Wireless Controller on a PC Many thanks for the quick replies. -dn Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Maya Programming Resources Montana Jones wrote: What IDE do you write the plugins in Visual Studio 2005 or does maya have an editor in which you can write C++ plugins that automatically have references to the required libraries/dlls No Maya doesn't have something like that. At home I use VS2005 to write them. The thing you make is actually just a regular DLL (with an .MLL file extension) with one special function exported. You can also use VS.NET 2003, works fine too. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Vibrate the controller for 1 second? Sonix2001 wrote: Thanks Ecrofirt That works fine I don't know that what I'm doing is the preferred way to do these things, it's just the method I use because I know it works. Someone might post later that my method is trash, and offer a much better solution. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Need help in reusing vertices Hi I'm new to XNA and im trying to render multiple instances of the same object. I've read the " How to: Use BasicEffect" in the XNA documentation, but I'd like to render multiple cubes, if someone could post some code showing how to do this that would be much appreciated. Thanks Edit: Just solved my problem. In my draw function, after drawing the first cube I translated the world matrix, and forgot to set it to the old worldmatrix when finishing. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Vista Compatibility Yep I see the same thing, the correct icon shows up in Explorer for the project but if you try to double click on it, it doesn't launch C# Express. If you run C# Express then open the solution it's fine. I did spend a day or so getting the service pack and patch in place when migrating to Vista. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- VB6/DX8 CreateTexturefromResource parameters? Hi, thanks for your reply and yes I stick to that. I thought using strings is the appropriate way to define the datatype. This is from the VB-documentation under Hardcore Visual Basic => Anatomy of a ResourceBlock: Code Snippet You can load this resource into an array of bytes, as shown here: abWavGrunt = LoadResData (ordWavGrunt, ¡°WAVE¡±) Neither the dokumentation nor the web is very helpful or I¡¯m just overlooking the appropriate information so I¡¯m just guessing. The data in tex and byte_length seem to be right. The filesize of the texture is specified with 811 kb in the data-properties and byte_length is exactly 786.485 so regarding overhead the data in byte_length should be ok. For the tex I don¡¯t know how to check for its validity, but it has of course as many bytes as byte_length. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- How to only draw visible meshes? Performance problems. ClydeCoulter wrote: For this reason, I have started 2 projects. One for two dimensional layout of a scene, the other for 3 dimensional. Now, when I say 2 dimensional, I don't mean 2d game but a layout like a landscape/terrain where all objects are more a less laid out north/south/east/west. But an outerspace game is fully 3 dimensional in the the player can go up/down too. The projects are Quadtree (landscape type) and Octtree (outerspace type). They are functional in that they do cull out objects that are not visible on the screen. They are extendable in that you get the source code (to modify at will) and also that they provide a base class that itself is derrived from DrawableGameComponent. This base class allows you to draw whatever you like when visible, but it's update get called each frame. They also handle drawing models for you when visible. Quadtree: http://www.codeplex.com/quadtreeload Octtree http://hosted.filefront.com/ClydeCoulter They both come with the source for a test game that demonstrate some of what you can do with them. The Quadtree project also comes with a tutorial on creating heightmaps and textures for them. How does that really show me how to load 3D "tiles" and stitch them together in a performant manner Does anyone know of any resource for doing such a thing Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Bitmap Font problem Hi, i have problem when using font in simple 3d scene, source code: protected override void Draw( GameTime gameTime) { mGraphics.GraphicsDevice.Clear( Color .CornflowerBlue); // draw car transforms = new Matrix [mCar.Bones.Count]; mCar.CopyAbsoluteBoneTransformsTo(transforms); Matrix carRot = Matrix .CreateRotationX(mVehicle.DiffFb) * Matrix .CreateRotationZ(mVehicle.DiffLr) * Matrix .CreateRotationY(mCarRotation); Matrix carPos = Matrix .CreateTranslation(mCarPosition); Matrix carMat = carRot * carPos; foreach ( ModelMesh mesh in mCar.Meshes) { foreach ( BasicEffect effect in mesh.Effects) { effect.EnableDefaultLighting(); effect.World = transforms[mesh.ParentBone.Index] * carMat; effect.Projection = mProjectionMatrix; effect.View = mViewMatrix; } mesh.Draw(); } mRusFont.DrawString(0, 0, Color .White, "Hello world" ); base .Draw(gameTime); } Problem: font is visible, but mesh looks like transparent or inverted, some parts invisible. Maybe before render font i need to switch from 3d to 2d mode Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Vector to rotation, ie - point models 'forward' to their direction. I sort of get what you're saying -but I'm not going really from one vector to another. e.g. Model, who's origin is given a point (10,0,0) given a movement Vector of (0,0,3) -moving upwards should be translated from it's 'inital state of 'front on X axis' to be pointing upwards. If the movment vector were (1,0,1) then it' shoudl be at a 45' inclination. It's not the 'incremental' rotation I need but the absolute final rotation you'd be at. If that makes sense. Don't quite understand the matrix from the axis & angle. I don't see why you can just say Make a new vector of the normalized MovementVector and get a rotation translation from that. Why are the cross and dot produts nessecary Sorry if this is remedial trig, again it's been ages. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Orthographic UI well, this sucks. Thanks for making InternalDraw private in SpriteBatch MS Turn that c.r.a.p. to protected so I can use my own structures like a rectangle comprised of floats. Without having to reinterpretate them to rectangles / vector2's. Looks like I'm going the hardest route. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Some Halo-like video clip I found... Thats sick! Have you or are you planning on making the source available Did you write an importer to read the data files or did you recreate the maps/models Either way, amazing! Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- HLSL's tex2Dlod (Vertex Shader texture fetch) difference between PC and XBOX360? Thanks I'll try tonight with point sampling. My original code in DirectX was set to point sample and last night I only did a quick test reading from my diffuse map sampler, which is set to linear, instead of an actual displacement map. The only thing that I'll miss but can easily work around was rendering position to a Vector4 surface and then using it for screen space post processing effects, but most of these can be replaced by only storing depth. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- how to set xbox 360 resolution? I had the same problem last night. After much head scratching adding the code below to the main game class (before Initialize() is called) fixed it for me. graphics = new GraphicsDeviceManager(this); this.graphics.PreferredBackBufferWidth = 1280; this.graphics.PreferredBackBufferHeight = 720; R. Stlr Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- XNA and C# HATE me... Errors with spacewars Well... graphics cards dont mean much to me- but its shared video memory (128mb) and its a SiS chipset or w/e, but it runs dx 9 with my games... is that different maybe im just stupid after all EDIT: I opened my display properties and it said it was a SiS m760gx- and i googled that and got this: http://www.sis.com/products/sism760gx.htm anyway it says it supports DX 8.1 or something- so im pretty sure its not specifically that. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Problem with executing two DirectPlay Server under DirectX8 on the same server Hi, after I've googelt endless hours, I hope I'll find an answer here. I'm using DirectPlay for communication between clients and a server process. No we get troubles with the traffic on the network connection. So I've added a second network card and started the Serverprocess a second time (using the new IP-Adress). But when executing: DirectPlayServerCreate.Host AppDesc, DPAddress an error occured (Automatisierungsfehler / automation error) Here's the code in VB6: ======================================= Dim AppDesc As DPN_APPLICATION_DESC Dim lngErr As Long Call Class_Terminate With AppDesc Select Case mServerNr Case 2 .guidApplication = AppGuid2 'Guid created by GuidGen Case Else .guidApplication = AppGuid 'Guid created by GuidGen End Select .lMaxPlayers = 1000 .SessionName = "MyServer" .lFlags = DPNSESSION_CLIENT_SERVER Or DPNSESSION_NODPNSVR End With Set DPServer = DX.DirectPlayServerCreate Set DPAddress = DX.DirectPlayAddressCreate DPServer.RegisterMessageHandler Me DPAddress.SetSP DP8SP_TCPIP DPAddress.AddComponentLong DPN_KEY_PORT, "28xxx" 'x as placeholder here DPAddress.AddComponentString DPN_KEY_HOSTNAME, "192.x.x.x" 'x as placeholder here DPServer.Host AppDesc, DPAddress 'here it crashes =========================================== Thanks for your response in advance! Roland Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- DreamBuildPlay is up!!! ..jeez whoever designed the website should be shot for this oversight Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- General strategy question about XNA I've been wondering about this as well, and I think you're probably right that it's about generating GS Pro developers. I don't think that the X360 part of GDE is ever going to take off with the current terms, it's too expensive and cumbersome in relation to the quality of the games you'll be able to play - but it's a great lure to know that you can make your own X360 games. However, GSE will produce a large number of game programmers that a) wouldn't have become game programmers without it and the X360 promise, and b) will be very familiar with MS tools and will tend to stick to them when they get to professional levels. With enough tools and components to make things easy, it can also draw more people into game creation that are not primarily focused on technology, which might lead to more unconventional content. In the coming years of console warfare, this group may become a huge asset for MS. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- How to you access parent elements from objects?> I'm new to C#, I usually use VB.net and I'm having trouble finding how to access parent elements from inside objects. For example, imagine I instantiate this object in my program: (Note the class is created in a separate text file from my main program) namespace XNATest5 { class Statistics { private int LastTime; private int FrameCount; public Statistics() { FrameCount = 0; LastTime = Environment.TickCount; } public void Update() { FrameCount += 1; if (Environment.TickCount - LastTime < 1000) return; Window.Title = "FPS="+FrameCount.ToString(); <---- doesn't work FrameCount = 0; LastTime = Environment.TickCount; } } } It seems I can't refer to the "Window" variable from here, even though I know it exists. It doesn't matter if I qualify it with the full namespace (XNATest5.Game1.Window) it's not visible from here. Why is that In VB you can use the namespace to access actual instantiated objects during runtime. Is there a way to do this in C# I know I can pass in "Game game1" as a variable in the constructor but it's a pain in the *** as then I would have to do it for a lot of my code and it seems unnecessary. I can't even access public variables created in my main program; EG : if I declare public int TestVar; and then create a statistics object in the same program, it cannot see TestVar, even though it is described as public! Is there some export or import command i don;t know of or some other way to access variables that exist at runtime in parent scope Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Trouble using Asteroid Models If the above doesn't work for you, make sure the z-buffer is on. When depth buffer is not on, different parts of the object draw on top of each other, and it looks "transparent" too: http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=1240805&SiteID=1 graphicsDevice.RenderState.DepthBufferEnable = true; graphicsDevice.RenderState.DepthBufferWriteEnable = true; Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Reading embedded files String resources are the only embedded types supported on the 360, I believe. So the above would be a good idea if you plan on using your code there. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- Again - C++ DirectX Error yep, and the directX debug libraries are also included.... Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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- DreamBuildPlay - Any advantage to submitting early? If you're done already, you could just let your finished one sit there and start on another entry. You still have a week and you can submit more than one entry. Better chances to win, especially if you don't think there's much to add to your current one. @Lima Beans - it's probably because nobody wants to give anyone else ideas. a couple of ideas here and there could make or break your game. Although I'm sure that afterwards, you'll probably be seeing a torrent of blogs/tutorials/walkthroughs in how people created their games. Tag: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model? Game Technologies: DirectX, XNA, XACT, etc.
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OthonReyes
Hi, i'm a bit newbie programming videogames with directx and here in my contry there is not enough information to start a career as a videogame programmer. Anyway, my question is "How do the proffesional videogame programers load a 3d model ", i mean sometimes i explores the files of the videogames taht i play in my pc and i can't find any .x file, i'm not surprised by this but i wish to know how they load a 3D model if there are no .x files in the finalv ersion of the video game.
Thanks for any help
Thanks for any help
Re: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model?
Ralf Kornmann
Well most of us have their own prosperity formats and custom exporters for the design tools (Maya, 3DMax, ¡)we use. Most times another tool (called asset compiler) is used to generate big files that contains 3d models, textures, and other things the game need.
Re: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model?
OthonReyes
So, i understand the you don¡¯t use a common file.
Could you explain me how can i make such custom exporter program . Is there any documentation about it .
Do you know the name of any asset compiler that can be downloadable .
Thanks for you help
So, i understand the you don¡¯t use a common file.
Could you explain me how can i make such custom exporter program . Is there any documentation about it .
Do you know the name of any asset compiler that can be downloadable .
Thanks for you help
Re: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model?
ttgsgMAFE
Why not give ".FBX" a shot. The format can be exported from Maya, 3DS and Motion Builder. You can also export the file into ASCII and Bianary formats. I would recomend downloading XNA and looking over the content pipeline as well.
Have Fun.
Re: Game Technologies: DirectX 101 How do the proffesional videogame programers load a 3d model?
Lord_Dan
Or you could do something like that.......
Let's say that you have a file named MyModel.yourCustomExtension, that contains:
2
2
0
2
-2
0
-2
-2
0
If you open this file..... it doesn't make any sence. But........ actually it contains the coordinates of 3 vertices of a triangle.
2 -- x of vertex 1
2 -- y of vertex 1
0 -- z of vertex 1
2 -- x of vertex 2
-2 -- y of vertex 2
0 -- z of vertex 2
-2 .......and so on
-2
0
Use a filestream to read the file. After reading the first line, convert what the filestream got to a float.... after reading all file.. u should be able to create 3 Vector3 containing (2,2,0), (2,-2,0), (-2,-2,0).
If u want more details or a sample source code just say it 
.
And u can make your own extension (you file could contain all mesh data, textures, matrices and so on.....