Model scaling without effecting the real coords

XNA Framework

- Previous
  - 1
    - 2D Texture transparency Or you can make it a PNG with a transparent background (better looking when using antialiasing etc). Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 2
    - Install XNA games on another computer? You should be able to run it by just installing the XNA Framework Redistributable, I don't think you need to install all of GSE for it to work. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 3
    - Gaming groups or websites Well the GarageGames have recently opened the Great Games Experiement - a social network for gamers, developers and publishers. I wrote a review of my experiences so far. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 4
    - Humorous but somewhat serious question about XNA Where did you see this claim from MS As for performance have you seen the XNA Racer video That's using only one of the 360's processors (from what I understand). There's no question that the 360 can outperform the Wii. The Xbox can probably outperform it, although I don't have the specifics on the two sets of hardware. You're comparing apples to oranges with the Wii to XNA comparison. If you were to change XNA to 360, the comparison would be correct and there's no way the 360 is a kid's toy. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 5
    - DreamBuildPlay is up!!! Yup, sorry. In fact, it will only allow you to enter if your name is XNA Rockstar. Sorry to be the bearer of bad news guys Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 6
    - Pixel Shader 1.1 Hi, that's true only if you live in USA or in another developed country, in underdeveloped countries like Brazil or Colombia or really in any latinamerican country the most of the people don't have access to obtain a video card with this 'minimal requeriments' and if they can obtan it sure they don't have the money to pay it. I'm from Colombia, i'm lucky and i have the money and the access for this kind of technologies but the most of mi friends don't have it. I remembered my dissapointment wheh i did try to run one of my xna games in one of my friends pc's... I believe that a big point would be that in future XNA releases the runtime and frameworks include support to low levels video card or at least support to run using Reference Rasterizer in a low profile video card. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 7
    - Rants on XNA 1.0 > the workflow is fixed I'm not sure I understand what this means (I haven't had time to install XNA yet) - are you actually saying that I can't let the user choose an arbitrary say, .x file and see it in the application Loading bitmaps with System.Drawing and copy it over to a texture should work though, I guess (This text editor is humiliating to use, will you **please** get a new forum ) Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 8
    - please take new forum posts over to http://creators.xna.com It does not appear that the new forums support marking posts as answered or helpful, nor do they appear to offer e-mail alerts or searching. Lastly, since they cannot be marked as answered, there is no "Top Answerers" list like on the MSDN forums. Being on this list is sort of a badge of honor which motivates people in the community such as myself to answer posts for others. The other content on this site looks exciting, but all in all I think moving the forums there is a big mistake, at least with the current feature set, and the value of the forums will be severely crippled. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 9
    - what is best way to render scene with great number of textures? im currently trying following: TextureCreationParameters tcp = new TextureCreationParameters (128, 128, 128, 1, SurfaceFormat .Color, ResourceUsage .Dynamic, ResourceManagementMode .Manual, Color .White, FilterOptions .None, FilterOptions .None); tsz = Texture3D .FromFile(graphics.GraphicsDevice, "tex3d" , tcp); i've successfully loaded texture, i hope i'll be able to get/set data on it. anyway this is obviosly a bug in 3d textures, coz it's impossible to create manual resource texture via contructor. -- btw, i've got an exception on this: tsz = new Texture3D(graphics.GraphicsDevice, 32, 32, 32, 1, ResourceUsage.AutoGenerateMipMap, SurfaceFormat.Color); invalid method call :/ Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 10
    - 2D Collision to Windows boundaries... Doing that doesnt help a bit. The ball still sticks to the side. Ball class now looks like this: Code Snippet { class Ball { public Vector2 pos = new Vector2 (); public float yspeed; public float xspeed; public Ball() { pos = new Vector2 (0f, 0f); yspeed = 5; Random rand = new Random (); xspeed = rand.Next(-5, 5); } } } I changed the names in Game.cs accoarding to this. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 11
    - DreamBuildPlay - Any advantage to submitting early? I can't imagine there's any benefit to submitting early. It's not like you'll get extra points or something. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 12
    - HOWTO: The fastest way to update shader parameters? The pipeline will stall a lot when you change effects, and stall a little bit when you change parameters. However, if you stall the pipeline to change one parameter, it is often almost free (or at least comparatively cheap) to also set another parameter. This is why it's good to improve batching. Whatever you can do to make sure you draw at least 2,000 triangles in each call to draw will help you in case you are vertex transform or batch limited. However, if you are fill limited, none of this will matter. From your code, though, you could save some CPU load by getting the parameter handle once (as an EffectParameter) and then calling SetValue() on it when you need to change it. // in initialization EffectParameter wvpParam = theEffect.Parameters["WVP"]; EffectParameter texParam = theEffect.Parameters["Texture"]; ... // in drawing wvpParam.SetValue(myMatrix); texParam.SetValue(myTexture); do the drawing Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 13
    - XNA Starter Kits Was wondering if anyone knows if there are any free Starter Kits out there for XNA, besides the ones from TorqueX Beta and XNA Creators Club Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 14
    - Post-Processing Woes Post processing as used here just means rendering something that results in a change to the whole screen. There is no difference between rendering a post process effect, rendering a 3D model or rendering some 2D sprites - they all go through the same graphics pipeline (which you can read about here ) with vertex processing, pixel processing, blending, fog, etc. The Hazy Mind tutorial doesn't use a vertex shader because it is using SpriteBatch and SpriteBatch uses it's own vertex shader, the tutorial just replaces the SpriteBatch pixel shader with whatever pixel shader is in the custom effect. There is no difference to rendering your own rectangle (2 triangles) on the screen and supplying your own vertex shader and pixel shader (this is what SpriteBatch is doing internally) but using a SpriteBatch saves writing the code for that. If you want to use the fx file you posted with the same setup as the Hazy Mind tutorial then you could start with removing the lines that set the VertexShader state in each pass so that you don't replace the SpriteBatch vertex shader. Cheers, Leaf. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 15
    - 56k download Do you know why download managers won't seem to work with the DirectX SDK Is this the download, or probably the manager Thanks, BmB Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 16
    - Who is using XACT? My team is currently porting the game Grogg to the Xact-platform. Grogg was previously a mod to HL2. www.grogg-thegame.com As an audiodesigner my focus is on the editor. I am also currently writing my master thesis on tools for implementing audio into games, so I will probably have a few questions along the way. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
- Next
  - 1
    - size in the 3D space i have 2 question 1.iam confuse how to correctly match the size of image (ex: *.tga 256x256) to the 3D space when we using CustomVertex.PositionTextured, how can we render the actual size of image in the 3D space 2. ex: void OnCreateBuffer(object sender, EventArgs e) { VertexBuffer buffer = (VertexBuffer)sender; positionTex = new CustomVertex.PositionTextured[4]; positionTex[0].Position = new Vector3(-1.0f, 1.0f, 0); positionTex[0].Tu = 0; positionTex[0].Tv = 0; positionTex[1].Position = new Vector3(1.0f, 1.0f, 0); positionTex[1].Tu = 1.0f; positionTex[1].Tv = 0; positionTex[2].Position = new Vector3(-1.0f, -1.0f, 0); positionTex[2].Tu = 0.0f; positionTex[2].Tv = 1.0f; positionTex[3].Position = new Vector3(1.0f, -1.0f, 0); positionTex[3].Tu = 1.0f; positionTex[3].Tv = 1.0f; buffer.SetData(positionTex, 0, LockFlags.None); } this buffer will create polygon wiht the width =2 n height =2; so what the meaning is 2 in width n height, 2 pixel or 2 inch or.. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 2
    - Resource management Ok. Does it cause any problems to dispose a ResourceManagementMode.Automatic object Also, regarding events, what I meant was will objects like VertexBuffer do things like hook GraphicsDevice events automatically What made the MDX bug I referred to so tricky is that VertexBuffers and other objects hook Device events unless a Device flag is turned off, so this was happening in a way that was not very intuitive and not documented anywhere that I could find except in the topic for the flag itself, which I had no idea was of any relevance until I read a blog comment by Tom Miller suggesting that it should be turned off. So, in a nutshell, if I do this: vb=new VertexBuffer(args...,ResourceManagementMode.Automatic); vb=null; will vb be garbage collected eventually If not, then if I were to Dispose() it before nullifying the referenec, would it be garbage collected eventually EDIT: I can't seem to get VertexBuffers garbage collected at all, as it turns out: TestClass t=new TestClass(); t=null; VertexBuffer vb=new VertexBuffer(graphics.GraphicsDevice, 100, ResourceUsage.None, ResourceManagementMode.Manual); vb.Dispose(); vb=null; System.GC.Collect(); //According to ANTS profiler, vb is live but t is not. EDIT 2: The CLR Profiler shows why the VB is not being disposed: The device just has a reference to the most recently created resource. I know it's a little weird to poke around like this, I just wanted to make sure because I had big problems with it in the past :P So, there's one question left: Do I have to worry about loadGraphicsContent(true) being called more than once Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 3
    - Future of DirectX Esenthel wrote: I'm starting to get worried about DirectX, because mostly it becomes deprecated, first there was DirectPlay, and now it is the same thing for DirectInput and DirectSound, I've recently read that they are becoming deprecated in favor of XACT and XInput. Could you tell me why is this happening What will become of DirectX in the future Will be there only Direct3D, or will it disappear either Other than what is in DX10 there really is nothing public about the future of DirectX. In general though remember that DirectX is an API for professional game developers. The indie guys and the hobby guys have to live with whatever we get - do we always like it No. So DirectMusic, DirectShow, DirectDraw, DirectPlay... well there are no big companies using those so they are either deprecated, or they are just supported without any new features. Esenthel wrote: I'd like to give you my opinion that deprecating good API's like DirectInput and DirectSound is a bad idea. Take a look at XInput- it allows only xbox controllers, and what about mice, keyboards, or other joypads I'm not sure that either of those are considered deprecated. Yes XInput looks like a replacement in the making but DirectInput is still there and works just fine. Esenthel wrote: And mostly I'm concerned about DirectSound, In Vista there is no hardware support for it, does that mean I have to stop working with DirectSound and go to XACT Why are you cutting DirectSound to something that isn't finished yet Have you noticed any sound issues on the xbox 360 Guess what there is no hardware sound on there either. Fact is that multi core CPUs are more than capable of handling the things that hardware sound used to cover. I believe the 3d sound stuff is still an issue so there may well be a valid point there (sorry I am not up to speed enugh on that aspect to really comment) Esenthel wrote: I mean XACT doesn't have the main feature that most of programmers use - Custom sound buffers, with the ability to lock, read and write your own data to it. It's just like you were forcing us, to abandon "c++" and move to some kind of "visual basic". I don't like it, XACT allows only wav and adpcm files, which is not enough. Buffer locking is needed for many aplications, like the ones using their own compression formats, or voice synthesizers, or the ones that generate sound out of mathematical functions. How do I do that in XACT I can't! So I'm asking why are you deprecating the API's that can do it Which is probably why DirectSound is still a part of the SDK. Please leave DirectX alone, don't deprecate it, don't replace it, don't kill it. DirectX gives you very big control of the programming aspects. If DirectSound is too old for Vista, then either update DirectSound, or deprecate it to something that has the key features like DirectSound. In reality its pretty cool how backward compatible DirectX and windows is - its surprising how many 8 year old games will install and run just fine considering how games are the apps that almost always push the envelope. Everything comes and goes in cycles... and there are always some people that don't agree with the decisions. Not everything in these forums gets read by Microsoft so you should pass your opinions on to directx@microsoft.com to be sure they are heard. However "I am developing a 30 million dollar title and need feature X" will get heard much more than "i don't like this and you shouldn't change it" Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 4
    - PIX, DX10 and Render to Texture when i do a single frame capture, it only record up un till the first render to texture has been unbound. If i do a full stream capture (ie multiple frames) it recordes everthing, but this stream is so large its unusable :-/ Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 5
    - Ortho-picking Thanks! Well I'm doing something like this, but when some transformations are applied, the picking is not accurate in Orthogonal projection. However, the PerspectiveFOV is perfect. That's Exactly what I'm doing: D3DD.GetViewport(VP); D3DD.GetTransform(D3DTS_PROJECTION, PM); D3DD.GetTransform(D3DTS_VIEW, VM); D3DXVec3Unproject(VOut1, D3DXVector3(X, Y, 0.0), VP, PM, VM, WorldMatrix); D3DXVec3Unproject(VOut2, D3DXVector3(X, Y, 1.0), VP, PM, VM, WorldMatrix); //WorldMatrix is the world transformation matrix for the tested mesh //The same is if it is got like this: D3DD.GetTransform(D3DTS_WORLD, VM); //I test with the IntersectTriangle function as it is in the Picking demo from the DXSDK. D3DXIntersect function does the same result. IntersectTriangle(VOut1, VOut2, v0, v1, v2, fDist, fBary1, fBary2) Sorry for reviving this thread, but there seems to be immeasurably difficult to find a woking piece of code for ortho-picking. I found people that had the exactly same problem, but found no answer :/ I still need this, and I think it would be nice and very helpful to have a practically working solution here. Well has anyone some working code Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 6
    - Collision Detection With Bezier Curves I think this method might be too slow, and how would the MoveAway() method know which direction to move and how much One way could be to calculate a unit vector pointing away from the terrain and then work out how much the player would need to be moved along that vector to get out of the terrain. If you looped through adding or subtracting until it isn't colliding, that would leave how fast you would get the player out of the terrain up to chance. I don't think I can do that since the "if the two lines are intersecting" statement is inside 4 nested for loops . Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 7
    - How to publish for Computers without XNA? Currently your friends will have to install Game Studio Express and you'll have to send them the project in order for them to try it. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 8
    - XNA project hard freezes XBOX360 This is odd as you should still be able to hit the XBox button in the center of the controller to regain control and cause the machine to go back to dashboard. Does this happen in any of your retail games Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 9
    - Tiling textures I have a .x mesh exported from 3ds (3D studio max). In 3ds, the texture for my floor is tiled, and looks nice and detailed. However, when I load this mesh into my DirectX application, the texture is tiled, but is stretched to the size of the face... so now it looks like gravel instead of carpet! Can DirectX control how textures are tiled I cant seem to find anything. So far I have turned on Anisotropic texture filter which has made a slight improvement... but the tiles are still streched! Any ideas Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 10
    - Tell us about your website or game! By website....does it matter if it's an actual site or forum Does it matter what the site's subject is Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 11
    - PC project -> 360 (including Game Library) Maybe someone else will be able to give you an answer, but without seeing exactly what you're doing it's hard to make a suggestion. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 12
    - membership? important!! darknemesis25 wrote: uhm, when u get a membership for 4 months on xbox , can u still play games when the membership runs out,, cuz if not, this whole thing is a waste and money. The membership allows you to deploy and debug games. Once they're on your 360, you can play them forever AFAIK. darknemesis25 wrote: when ur creating for the 360, can u preview or liek .. play.. ur games on windows b4 sending it over newb question , but i havent tried XNA yet Not for a 360 game, you'd have to create a Windows game and link the code from the 360 game. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 13
    - I need help displaying text in an XNA game Darn. I thought that in that Channel 9 video covering the launch party, they said the font object was available now. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 14
    - Multithreading in XNA Don't forget to also set the thread affinity or it will run on the same processor as your main process. Joel's post below is correct of course. The thread affinity is ignored on a PC due to windows deciding which thread runs on which processor. This is logical because windows may have one or more programs and processes running and each one runs in it's own thread. The 360 runs the kernel and your games and that's it so it uses a couple of threads for itself and leaves 4 free for games to use. Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 15
    - Multiuser games? Correct me if I'm wrong, but I thought that networking code wasn't in XNA at this point, so multiplayer games are not presently possible... Maybe I'm thinking of something else, though, so don't quote me on it ( : -SysErr Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.
  - 16
    - how to delete the threats? Yes, he needs to be more specific! dczraptor: why shouldn't you multi-thread your XNA application how elso would you get to use the power of the 4 available hardware threads on teh xbox (2 are reserved, we only have 4 available) Tag: XNA Framework Model scaling without effecting the real coords Game Technologies: DirectX, XNA, XACT, etc.

Thunder2002

Hi,

when I load my models they don't always have the correct size in relation to each other, so i want to scale them. When i multiply the world matrix of the basic-effect that renders the model with a Matrix.CreateScale(0.2f) matrix i get the visual correct result. But the coords are scaled too. So when i want to set the position of my model i need to multiply the x, y and z coords by 5 to get the correct values for the model world matrix.
Does anyone have an idea to only scale the model in visual I already tried to multiply the view and/or projection matrices with a Matrix.CreateScale(0.2f) matrix but I only got crapy results... at least I am not very familiar with matrices

Thx & bye Thunder2002

Re: XNA Framework Model scaling without effecting the real coords

dczraptor

Whenever you are dealing with multiple matrices, make sure you multiply them in this order: scaling, rotation, translation. So for your code, (I'm assuming that you dont' have rotation yet), do this:

effect.World = Matrix.CreateScale(0.2f) * Matrix.CreateTranslation(position);

The reason is that if you do translation first, the scale will modify anything before it. In this case, it will take position and multiply by 0.2f.

Re: XNA Framework Model scaling without effecting the real coords

Thunder2002

Ah yeah, thank you very much, now if I think about that its more then logical