Exception on calling UnlockRect

Game Technologies: DirectX 101

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  - 1
    - Bizzare object Axes with trueSpace, what about other 3D apps? Side note: I tried setting the camera position to Z=1f, but when I run the program I don't see the model anymore. I also made sure to export the model using left-handed coordinates. Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 2
    - 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: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 3
    - help regarding a game You could also check out the forums at gamedev.net for non XNA/GSE questions such as this one. There's a fantastic beginners forum there that can help guide you :-) Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 4
    - Shaders for curve and line width rendering? Hi Mark, I wrote some code to do wide lines -- see http://blogs.msdn.com/manders/archive/2007/01/07/lines-2d-thick-rounded-line-segments-for-xna-programs.aspx . You could probably extend that code to do some of the other stuff you want like various line types. -Mike Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 5
    - Newbie question - spawning new objects not having programmed anything more complex than a VCR since Spectrum basic - it's for a magazine article Why are you trying to write a magazine article on a subject you're not familiar with Is that really doing the readers of the magazine much of a service Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 6
    - mesh in xna nobody can help us Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 7
    - Load/UnloadGraphicsContent I'm guessing that the Load/UnloadGraphicsContent is there to allow the runtime to make a game release resources and then reload them, in the following order: 1 / Game loads, LoadContent is called, and game can load graphics anytime after this point if it feels the need, e.g. when loading a level. 2 / Runtime requests game to release content - so UnloadGraphicsContent is called. 3/ Runtime requests game to reload content at some point, presumably before Game.Draw is called again, else we would be in trouble... Is this correct And also, I presume there might be a point before which you are allowed to load any content - is this the first time LoadContent is called, or before that Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 8
    - XNA vs Intel 915G Hi, My laptop uses the Mobile Intel 915GM/GMS ,910ML Express chipset and I had no problem when creating a 2D game using a spritebatch to display textures. However, when i started my 3D game, no errors were shown in the GSE window but it would not run. I later found that was due to no proper shader support as previously mentioned. However if you open the .fx file that holds the effect that you are trying to apply and change all occurrences this text: if (xEnableLighting) Output.LightingFactor = dot(Normal, -xLightDirection); to // if (xEnableLighting) // Output.LightingFactor = dot(Normal, -xLightDirection); I found that the game would now run. I dont know what it does but it will do until I ghet my new graphics card. Hope this helps ta alan Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 9
    - Problems to Create a Vertex Buffer... Anybody, HELP...? Hi, ... ... ... Dear Bad Habit... I'm terribly sorry, but the book I'm trying to learn 3D Graphics uses the DirectX 8 SDK... If I'd have to use DirectX 9, I'd just have to buy another book for that... But for right now, I'm just trying to use DirectX 8 as a beginner only... So, please advise... _________So, the codes below are what I used... The program seems to compile allright... #define D3DFVF_SIMPLEVERTEX (D3DFVF_XYZRHW | D3DFVF_DIFFUSE) struct SIMPLE_VERTEX { float x, y, z, rhw; DWORD color; }; #define NUM_VERTICES 1000 #define RANDOM_NUMBER ( float )rand() / ( float )RAND_MAX LPDIRECT3DVERTEXBUFFER8 m_pVertexBuffer = NULL ; BOOL CVertexApplication::CreateVertexBuffer() { if (FAILED(m_pD3DDevice->CreateVertexBuffer( NUM_VERTICES * sizeof ( SIMPLE_VERTEX ), NULL, NULL, D3DPOOL_DEFAULT, &m_pVertexBuffer ))) { // OutputDebugString(_TEXT("Error creating VB!!!")); return false ; } _________When I run the program, this is the error it gives me, as below... Unhandled exception at 0x00412591 in RealTimeRendering___1.exe: 0xC0000005: Access violation reading location 0xcdcdcdcd. _________Can you just see if you know What I can do to fix this problem while still using DirectX 8 only... I don't think there's much difference with DirectX8 and DirectX 9... It's just that for right now, I'm just a beginner, and I have a book that uses DirectX 8, so DirectX 8 will have to do for now... So, using DirectX 8, you told me that it expect the pointer to point at a vertex buffer, but I can't point the pointer to SIMPLE_VERTEX, which is the vertex Structure... So, how do I fix this problem... Please advise, and help... Please tell me the explaination for this problem... Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 10
    - Managed DirectX reference for C# project If I install a project from "DirectX Sample Browser" the references for DirectX (december 2006) are like this: C:\WINDOWS\assembly\GAC\Microsoft.DirectX\1.0.2902.0__31bf3856ad364e35\Microsoft.DirectX.dll But this folder path don't exist, exist only until C:\WINDOWS\assembly where I found all library, DirectX too. If inside Visual Studio I click "Add Reference" I find only folder path like this C:\WINDOWS\Microsoft.NET\DirectX for Managed Code\1.0.2902.0\Microsoft.DirectX.dll and this folder path exist. Both version of dll work very well on my PC, but the second don't work if i try it on other computer. Don't work the exe and don't work if I open project too: wrong reference. SDK is installed also on second computer (always december 2006). Now the question. How can I add reference to right DLL (without using "DirectX Sample Browser" projects) that will work on any computer with right runtime installed From "Add Reference" I don't see the path C:\WINDOWS\assembly\GAC\... for dll. Thank you for help. Bye Toni Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 11
    - Creating projectiles, need help with list. George is right that this is the likely cause. This kind of thing can be highlighted at compile time as a warning, for example: Field 'ProjList' is never assigned to, and will always have its default value null YourFile.cs You could have the compiler treat warnings the same way as errors (i.e. the build fails) by going to Project|Properties... and, under the Build tab, choose "All" in the "Treat warnings as errors" section. At the same time, you also need to set the "Warning level" - the default is 4 which will catch unassigned variables. Treating warnings as errors can be a real pain when you're in the early stages of coding a new project or when you're in the middle of a heavy refactoring session but when things stabilise, my advice would be to treat warnings as errors and set the warning level to 4. Hope this helps. Cheers. Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 12
    - Use of professional 3d Game Engines with XNA - Port hi there, I got some questions about the compatibility of the XNA Framework with 3d or game Engines. By now where are a Team of 7 Student of the Games Academy in Berlin producing our game with the trinigy Vision Engine and the Standard Visual Studio 03. -> www.project-barcode.com My main questions is if its possible to combine the trinigy vision engine and the XNA Framework/ studio Our Programmers got experiece with c# but are not used to create games on it. Whats the overall state of campatibility with engines and the XNA Framework Or is there by now just a support for the Torque X Engine the trinigiy Vison 6.0 is a fully Dirext X engine coded in C++. Would it be possible to correct our current game code witch is in C++ to C# and port it from visual Studio to XNA without loosing the option to go on with the vision engine If there are interested Forum User to help us with our Situation or have other Question do not hesitate to contact me. it would be nice to hear from you: ce@project-barcode.com Thanks a lot, Greez. Cyrill Etter Game Designer, Team Lead Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 13
    - problem getting font to work with XNAExtras I'm not sure if this is the correct place for help with XNAExtras, but I couldn't find any other forum about it. Anyway, I downloaded the tool, included the correct classes and made a .xml file and an image for the font I want to use with the tool that comes with XNAExtras. I included XNAExtras with the project and have all the code from the example programs included, but when I run my program, it tells me that the font I'm trying to use when I create a new BitmapFont object can't be found. Copying the same two font files into the existing font example causes the same error. However, when I try to copy the font files that were initially in the example and work fine there back to my own project, I get the same error in my own project. Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 14
    - XNA doomed? I'm biting back my sarcasm, but there is blood in my mouth now. So, trying to restrain myself here. Because you don't see any reason to download XNA, that means that XNA is doomed. The currently thriving and growing community surrounding XNA is doomed because you, in all your experience and wisdom, have suddenly made the decision for the rest of use that there really is no reason to download XNA and all those projects we've been merrily working away on are silly because XNA is doomed. Wow, even with all this biting, I still wasn't able to hold back the sarcasm. I'm sorry, but I totally don't understand how you expect people to respond to a comment like this. XNA is a game development framework. What does it provide Some things, but not everything. It has a built in game loop, so there's no need to write your own. It takes care of setting up the communication with all the devices so you don't need to do that. It has helper objects for setting up collisions with spheres and boxes, it has the Content Pipeline for loading your assets, it has XACT for create your sound library. All of this can be read about by browsing through the XNA help online. So if you're really curious, head on over and read about it. Hopefully that helps explain things to you and seriously, next time you are interested in something, maybe think twice about how you post your question. Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 15
    - XNA Video Demo for Sphere Hey Everyone, I have been working on my first game in XNA, and just posted a gameplay video of it up on YouTube. The game is called Sphere, and it is a simple 2D game where you play the white sphere, and the object is to avoid the other spheres as they chase you around the screen. As time goes by, the game gets faster. The player has the ability to activate "slow motion" which slows the game down to help get out of tight spots. Right now the slow motion is unlimited, as I am working out some type of dynamics to make it so the whole game isn't played in slow mo. But the slow mo is apparent when watching the video. The game is still in development, but I do plan on fully polishing and releasing it to the public. Check it out here . Any comments or suggestions are much appreciated. BTW, the music is not apart of the game, it was just some background music that was playing when I first started to make the video, and I thought it fit well so I kept it in. Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 16
    - problem viewing .x file format done in Blender Im having a problem when executing the first tutorial of xna tutorial documents in the msdn express, the model works just fine when i use the tutorial example " p1_wedge.fbx " but when I use my model, a .x model I made in blender and used the directx .x exporter , the model appears with transparency and I can see the colors at the other side of the model, really strange, are there any ideas why this happen just for some explanation... the model is a human with some armature and armature animation, it is uv mapped, and in directx viewer it looks solid and the animation works good ! Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
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  - 1
    - HLSL design and compiler cleverness I have a good amount of shaders/fx files where all have several techniques for various shader level and detail implementations. In a worst case scenario this leads to a lot of similar code being represented in the various vertex and pixel shaders I use, which is really a maintenance hell if left like that. Change code in one place and 5+ other places need the same change. So this leads me to the following idea: Split the code into various functions and place them in suitable include files. Include the needed files for a given shader and call the functions. A few examples of such functions: translatePosition(), getSpecular(), getDiffuse(), getNormalMapSpecular() getShadowValue() and so on. Doing this would mean one task only exists in one file and only one function, which would make it very maintainable. However, as with normal code having excess amount of function calls leads to a certain amount of overhead. My questions are then: Since shader efficiency is important to maintain a highest possible frame rate, especially in pixel shaders, will doing this make my shaders slower, even if more maintainable Is there a way to force inline behavior of such code or does the compiler perhaps already handle that If the compiled shader will suffer a slowdown, does there exist any statistic as to how much, or does anyone have any experience with this themselves /Thomas Lindquist Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 2
    - Grouping units like in a RTS game Here is an idea for you. Since I haven't actually done it yet, I'm not sure if this is the best way to go about this. Take the point where the user clicked and started dragging, and draw a line that starts at the click point and goes on the Y to wherever the mouse currently is (keep x at 0). Draw another line that does the same but reversed (draw on X, keep y at 0). Also, draw a line from the current mouse position up to the x that you started at and on the y to where you started at. That will give you a rectangle on your screen that will move when you move the mouse. When you detect that the mouse button has been lifted, change those 4 lines into a box(rectangle ), and loop through every unit on your screen to see if its in that box. I hope thats close because I wouldn't want to mislead someone. Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 3
    - Using XNA On Windows Boot Of MacBook? Just as a data point, I use the cheapest White MacBook Core Duo non-Pro as my main XNA GSE hobby programming machine. I use XP SP2 with the standard Boot Camp device drivers. (I forget which version of Boot Camp I'm running; I think it's 1.3.) The MacBook works fine for the simple 2D and 3D XNA games that I've written so far. And it has no trouble connecting to my Xbox 360 and downloading the games to run them on the 360. In general the Intel 945G chipset used in the Macbook non-Pro is not too bad for graphics. While not as fast as dedicated GPU cards, it's certainly much higher performance than most earlier generations of integrated graphics. (I haven't kept up with Macbook models; a quick check of Apple's web site says the latest models are using 950s. I don't know how the 950 compares to the 945G, presumably the newer chip is better, but I don't know for sure.) The one issue I ran into was that the 945G has some limitations on which features of DirectX it supports: I was stumped for a few days because I was trying to use a 32-bit index buffer, but the 945G only supported 16-bit index buffers. As a result, I didn't get any 3D graphics drawn on my display. But once I figured that out what was going wrong my 3D graphics worked fine. Oh, I should mention that I have 1.5 GB of RAM in my Macbook. I don't know if that affects graphics performance or not, but it might. Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 4
    - Processor Parameters I am using a model processor to produce a path finding network. It is working quite well! http://sharpx.blogspot.com/2007/01/first-steps-along-path.html The green nodes are some offset away from the corners that were detected as significant to the path network. I would like that offset to be configurable; preferably as a property of the file in Visual Studio. How do I provide custom parameters to a processor Thanks, Brandon Bloom Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 5
    - issue about DrawIndexedPrimitives hi. one of the DrawIndexedPrimitives method parameters is NumVertices that specify number of vertices during the call as all you know. but i faced a problem that this parameter reads vertices that are one after anothe in the vertexbuffer. let me explain my problem on a picture: for example i have such vb: 1 5 9 13 2 6 10 14 3 7 11 15 4 8 12 16 and i need to draw triangles that uses 1, 2, 5 and 6 vertices i.e. 4 vertcices at all. but as you may guess if i will pass 4 as numvertices function will only read 1, 2, 3, 4 verts. my question is: what is better 1. to pass whole (or for example bigger part of vb) to function 2. fill my vb in block-style, i.e.: 1 2 3 4 5 6 7 8... where 3 and 4 are equal to 5 and 6 accordingly and so on. p.s. it's interesing what stands behind DrawIndexedPrimitives (and any other draw call), how much vertices are really send to videocard etc.. Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 6
    - 2d resets with nuclex fonts? What line are you adding How are you drawing the strings Can you post some code Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 7
    - Material vs Shader But in meaning of 3d graphics...material is what I already said...It's a list of textures(maps also) and effects attached to 3d object. This makes sense, although I think the definition has been outdated (at least the d3d definition is pre-shader). In the context of XNA, there is no material anymore, why is this Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 8
    - XNA GSE for 360 ? - This Holiday Season ? Where exactly on XBOX 360 Live Marketplace is the 360 Part of the Download Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 9
    - unloading model resources Im trying to figure out how to manually unload models/textures/shaders ect. Halp me Intertron! Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 10
    - Custom Content Processor - Usage Hi, I am looking from some advice on writing a custom content processor for XNA. I have been working on a tile engine and have my Windows based tile map editor up and running. This editor produces an XML file holding all the tile set bitmaps, a list of all the levels in the map and a list of layers on each level. I am thinking of using a custom content processor to load this XML file, parse it and serialise it to the xnb file. I then plan to write a custom importer which will create a top level map object which will hold the tile sets as Texure2D objects and a dictionary of levels in the map. Does this seem like the correct use for a content processor Andy Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 11
    - Custom soundtracks I've only had XNA Game Studio Express since yesterday, but I've been having a lot of fun with it. I've started working on a game which is coming along nicely, but one thing irks me - I can't figure out how to have music playing that stops when a user chooses a custom soundtrack instead. At the moment, when a user chooses their own track is starts playing fine, but the game soundtrack continues to play in the background. I'm sure I've missed something simple, but I can't for the life of me figure it out. Any hints would be much appreciated. Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 12
    - Whats the deal with DirectX being owned by XNA? That explains quite a bit. Thanks. There are a couple things I'd be curious about if you have a chance to find anything out over the next 6 months. First off, suppose I have a basic game engine class structure like this: AudioServer - AudioDevice VideoServer - VideoDevice InputServer - InputDevice At the time of DirectX 8.1 (circa May 2002) all I needed to add for DirectX hardware support was this: #include <d3d8.h> #include <d3dx8mesh.h> #include <d3dxerr.h> #include <dsound.h> #include <dinput.h> At this point in time with my DirectX 9.0c code, before porting to DX10, I need to add this: #include <d3d9.h> #include <d3dx9mesh.h> #include <dxerr.h> #include <dsound.h> #include <dinput.h> When I get finished porting my code to DX10 it looks like I'm gonna need this and possibly more: #include <d3d10.h> #include <d3dx9mesh.h> (for legacy X File loading which isn't in DX10 yet) #include <dxerr.h> #include <dsound.h> #include <dinput.h> #include <xact.h> (for new sound support. why couldn't this be added to dsound.h ) #include <xinput.h> (for rumble support which DirectInput doesn't have on an XBox360 Controller. dinput.h ) Based on the recent changes internally it would seem the XNA team is starting to name all its additions to DirectX as seperate API's in order to reorganize and perhaps reinvent/rename/reconstruct DirectX into its own X*** architecture. XNA, XAct, XInput... Anyhow, please keep the forum informed. I'd rather the XNA team either swallow their pride and admit they are just an add-on to DirectX Managed and just submit to the old school Direct*** naming API. If not that then at least keep the basic DirectX API coherent so simple developers don't have to go searching for old Feb 2005 DX sdks just to install DirectShow headers that were already in DirectX and got "put back" into the Platform SDK. When the basic DirectX sdk starts to fragment with certain parts having functionality(XInput) and other similar parts(DirectInput) not then its definately something that can start causing headaches. That is unless you like including 20 headers in your application. :) Thanks again for your input. Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 13
    - Bug in BoundingFrustum.Contains()? That can't be right. Suppose i have two spheres of radius 10 one centered at 0,0,0 the other centered at 0,0,5. They have the same volume, which by your logic means they are Contained. Yet they most definitely are not contained. They are intersecting. Hence i assume that those definitions arent from official documentation, or i'm misunderstanding something. The way i look at it is as follows: Contained: Body A is contained by Body B if all the points of Body A lie inside Body B. Intersecting: Body A intersects with Body B if one or more points in Body A lie inside Body B *and* one or more points in Body A lie outside of Body B. Disjoint: Body A is disjoint from Body B if all the points in Body A lie outside of Body B. By that definition volume is irrelevant. Hence a BoundingBox of volume 0 still should be contained in my Frustum. However this isn't true. I'd like to see official documentation somewhere explaining these kinds of things. Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 14
    - The Unofficial "Hooray I'm Done With my DBP Game" Thread I just submitted mine. Unfortunately, it has a couple of glaring problems. I considered not submitting it, but decided I'd worked to hard over the past week to not at least enter it. I'll post an updated version for the community over on gameprojects.com within a week or so. Tom Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 15
    - Where do I start Simply search the forums for Tutorials for more info and read the XNA docs that came with GSE, the XNA team spent a lot of time getting usfull stuff in there. For 2D start over at http://www.xnaresources.com/blog.asp , good 2D tuts for 3D head over to http://www.riemers.net/eng/Tutorials/xnacsharp.php for 3D tuts. Lots more links on the forums and my blog site (which remind me I have a few more to add) Dave "LetsKillDave" Weller has also posted a humongous link page on his blog which whould be checked out - http://letskilldave.com/pages/XNA-Sites_2C00_-Blogs_2C00_-Games_2C00_-and-Tutorials.aspx Enjoy learning Darkside Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.
  - 16
    - DXT compressed Textures :-) .. it depends on your requirements. If you run a renderer without gamma correction == gamma 1.0 ... you are pretty lost. Here is a list of formats: - the new RGBE format and RGB can not convert to gamma 1.0 - a common format for HDR textures is DXT1 + quarter size L16 with the exponent ... two problems: bilinear filtering can be a bit screwed, but maybe you can live with that .... second gamma correction is tough - DXT1 + a scale and exponent value for each of the color channels in the header: you have to hack the DDS header for this ... the trick here is to store the scale and exponent values in gamma 1.0 but the rgb values in gamma 2.2 ... when the texture is fetch and than converted to gamma 1 and now that it is in gamma 1.0 space the scale and exponent are applied I implemented this on PS3, XBOX 360, DX9 and soon on DX10. You need a texture converter for this that offers this functionality and a few other controls that allows artist some artistic behaviour :-). If someone from MS would ask me today what my most favourite feature in DX10 is that I am missing: a nice HDR format with gamma correction ... every next-gen game runs with gamma 1.0. You can hear more of this in the tutorial "Core Techniques and Algorithms in Shader Programming" on GDC 2007 ( www.coretechniques.com .... soon available). Tag: Game Technologies: DirectX 101 Exception on calling UnlockRect Game Technologies: DirectX, XNA, XACT, etc.

Sarath.

Dear All,
Please have a look into the following code.

An exception occurs when I call UnLockRect. Are you able to see some problems with the code

The level is defined as 0 in this case.
Other type of texture creations are working properly. Problem happening with D3DFMT_A32B32G32R32F type.

hr = D3DXCreateTexture( m_pd3dDevice, SCIF_TEXWIDTH, SCIF_TEXHEIGHT,
D3DX_DEFAULT, 0, D3DFMT_A32B32G32R32F,
D3DPOOL_MANAGED, &m_pKernelTextureC );
if( D3D_OK != hr )
{
return SC_FAILED;
}
hr = m_pKernelTextureC->LockRect( LEVEL, &d3dlr, 0, 0 );
if( D3D_OK != hr )
{
return SC_FAILED;
}
nPosition = 0;
for ( nIndex = 0; nIndex < 32; nIndex++)
{
(( float* )d3dlr.pBits )[nPosition++]
= m_pfScifKernelC[nIndex]; //R
(( float* )d3dlr.pBits )[nPosition++]
= m_pfScifKernelC[nIndex + 32]; //G
(( float* )d3dlr.pBits )[nPosition++]
= m_pfScifKernelC[nIndex + 64]; //B
(( float* )d3dlr.pBits )[nPosition++]
= m_pfScifKernelC[nIndex + 96]; //A

             
}
             hr = m_pKernelTextureC->UnlockRect( LEVEL 
); // Here is the problem
             if( D3D_OK != hr )
             {
                 
return SC_FAILED;
             }

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Re: Game Technologies: DirectX 101 Exception on calling UnlockRect

ProfEclipse

If it's throwing an exception on UnlockRect and hasn't signalled an error earlier on, then it is most likely that you are tromping on memory in your loop.

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