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• Constructive criticsm on my linear sampling Gaussian blur

  - by Aequitas

  I've been attempting to implement a gaussian blur utilising linear sampling, I've come across a few articles presented on the web and a question posed here which dealt with the topic. I've now attempted to implement my own Gaussian function and pixel shader drawing reference from these articles. This is how I'm currently calculating my weights and offsets: int support = int(sigma * 3.0) weights.push_back(exp(-(0*0)/(2*sigma*sigma))/(sqrt(2*pi)*sigma)); total += weights.back(); offsets.push_back(0); for (int i = 1; i <= support; i++) { float w1 = exp(-(i*i)/(2*sigma*sigma))/(sqrt(2*pi)*sigma); float w2 = exp(-((i+1)*(i+1))/(2*sigma*sigma))/(sqrt(2*pi)*sigma); weights.push_back(w1 + w2); total += 2.0f * weights[i]; offsets.push_back(w1 / weights[i]); } for (int i = 0; i < support; i++) { weights[i] /= total; } Here is an example of my vertical pixel shader: vec3 acc = texture2D(tex_object, v_tex_coord.st).rgb*weights[0]; vec2 pixel_size = vec2(1.0 / tex_size.x, 1.0 / tex_size.y); for (int i = 1; i < NUM_SAMPLES; i++) { acc += texture2D(tex_object, (v_tex_coord.st+(vec2(0.0, offsets[i])*pixel_size))).rgb*weights[i]; acc += texture2D(tex_object, (v_tex_coord.st-(vec2(0.0, offsets[i])*pixel_size))).rgb*weights[i]; } gl_FragColor = vec4(acc, 1.0); Am I taking the correct route with this? Any criticism or potential tips to improving my method would be much appreciated.

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• Farseer: How can I crush Mario? [on hold]

  - by Homer_Simpson

  I want that Mario dies if the box is crushing him. My game has a similar level like this level from New Super Mario Bros. Wii: http://www.youtube.com/watch?v=tYyu6tFAa2M At the beginning of the level, you see some boxes falling to the ground. If a box crushes Mario, he dies. I want to do exactly the same in my game, but I don't know how to do that in Farseer. How can I do that in Farseer 3.3.1? Do you have any suggestions? I don't know how to do the collision detection. I use rectangles for the boxes and ground in Farseer. Mario is a polygon.

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• Multiple volumetric lights

  - by notabene

  I recently read this GPU GEMS 3 article Volumetric Light Scattering as a Post-Process. I like the idea to add volumetric light property to realtime render i'm working on. Question is will it work for multiple lights? Our renderer uses one render pass per light and uses additive blending to sum incoming light. I'm mostly convinced that it have to work nice. Do you agree? Maybe there can be problem where light rays crosses each other.

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• Smoothing found path on grid

  - by Denis Ermolin

  I implemented several approaches such as A* and Potential fields for my tower defense game. But I want smooth paths, first I tried to find path on very small grid ( 5x5 pixels per tile) but it is extremly slow. I found nice video showing an RTS demo where paths are found on big grid but units dont move from each cell's center to center. How do I implement such behavior? Some examples would be great.

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• Why does calling CreateDXGIFactory prevent my program from exiting?

  - by smoth190

  I'm using CreateDXGIFactory to get the graphics adapters and display modes. When I call it, it works fine and I get all the data. However, when I exit my program, the main Win32 thread exits, but something stays open because it keeps debugging. Does CreateDXGIFactory create an extra thread and I'm not closing it? I don't understand. The only thing I would suspect is that in the documentation it says it doesn't work if it's called from DllMain. It is in a DLL, but it's not called from DllMain. And it doesn't fail, either. I'm using DirectX 11. Here is the function that initializes DirectX. I haven't gotten past retrieving the refresh rate because of this problem. I commented everything out to pinpoint the problem. bool CGraphicsManager::InitDirectX(HWND hWnd, int width, int height) { HRESULT result; IDXGIFactory* factory; IDXGIOutput* output; IDXGIAdapter* adapter; DXGI_MODE_DESC* displayModes; DXGI_ADAPTER_DESC adapterDesc; unsigned int modeCount = 0; unsigned int refreshNum = 0; unsigned int refreshDen = 0; //First, we need to get the monitors refresh rater result = CreateDXGIFactory(__uuidof(IDXGIFactory), (void**)&factory); //if(FAILED(result)) //{ //MemoryUtil::MessageBoxError(TEXT("InitDirectX"), 0, 0, TEXT("Failed to create DXGI factory\nError:\n%s"), DXGetErrorDescription(result)); //return false; //} /*//Create a graphics card adapter result = factory->EnumAdapters(0, &adapter); if(FAILED(result)) { MemoryUtil::MessageBoxError(TEXT("InitDirectX"), 0, 0, TEXT("Failed to get graphics adapters\nError:\n%s"), DXGetErrorDescription(result)); return false; } //Get the output result = adapter->EnumOutputs(0, &output); if(FAILED(result)) { MemoryUtil::MessageBoxError(TEXT("InitDirectX"), 0, 0, TEXT("Failed to get adapter output\nError:\n%s"), DXGetErrorDescription(result)); return false; } //Get the modes result = output->GetDisplayModeList(DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_ENUM_MODES_INTERLACED, &modeCount, 0); if(FAILED(result)) { MemoryUtil::MessageBoxError(TEXT("InitDirectX"), 0, 0, TEXT("Failed to get mode count\nError:\n%s"), DXGetErrorDescription(result)); return false; } displayModes = new DXGI_MODE_DESC[modeCount]; result = output->GetDisplayModeList(DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_ENUM_MODES_INTERLACED, &modeCount, displayModes); if(FAILED(result)) { MemoryUtil::MessageBoxError(TEXT("InitDirectX"), 0, 0, TEXT("Failed to get display modes\nError:\n%s"), DXGetErrorDescription(result)); return false; } //Now we need to find one for our screen size for(unsigned int i = 0; i < modeCount; i++) { if(displayModes[i].Width == (unsigned int)width) { if(displayModes[i].Height == (unsigned int)height) { refreshNum = displayModes[i].RefreshRate.Numerator; refreshDen = displayModes[i].RefreshRate.Denominator; break; } } } //Store the video card data result = adapter->GetDesc(&adapterDesc); if(FAILED(result)) { MemoryUtil::MessageBoxError(TEXT("InitDirectX"), 0, 0, TEXT("Failed to get adapter description\nError:\n%s"), DXGetErrorDescription(result)); return false; } m_videoCard = new CVideoCard(); MemoryUtil::CreateGameObject(m_videoCard); m_videoCard->VideoCardMemory = (unsigned int)(adapterDesc.DedicatedVideoMemory); wcstombs_s(0, m_videoCard->VideoCardDescription, 128, adapterDesc.Description, 128);*/ //ReleaseCOM(output); //ReleaseCOM(adapter); ReleaseCOM(factory); //DeletePointerArray(displayModes); return true; } Also, I don't know if this means anything, but this is some of the output log when the function is commented out: //... 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\msvcr100d.dll', Symbols loaded. 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\imm32.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\msctf.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\uxtheme.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Program Files (x86)\Common Files\microsoft shared\ink\tiptsf.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\ole32.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\oleaut32.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\clbcatq.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\oleacc.dll', Cannot find or open the PDB file The program '[6560] LostRock.exe: Native' has exited with code 0 (0x0). And when it isn't commented out... //... 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\cfgmgr32.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\devobj.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\wintrust.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\crypt32.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\msasn1.dll', Cannot find or open the PDB file 'LostRock.exe': Unloaded 'C:\Windows\SysWOW64\setupapi.dll' 'LostRock.exe': Unloaded 'C:\Windows\SysWOW64\devobj.dll' 'LostRock.exe': Unloaded 'C:\Windows\SysWOW64\cfgmgr32.dll' 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\clbcatq.dll', Cannot find or open the PDB file 'LostRock.exe': Loaded 'C:\Windows\SysWOW64\oleacc.dll', Cannot find or open the PDB file The thread 'Win32 Thread' (0xb94) has exited with code 0 (0x0). The program '[8096] LostRock.exe: Native' has exited with code 0 (0x0). //This is called when I click "Stop Debugging" P.S. I know it is CreateDXGIFactory because if I comment it out, the program exits correctly.

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• Multi Pass Blend

  - by Kirk Patrick

  I am seeking the simplest working example of a two pass HLSL pixel shader. It can do anything really, but the main idea is to perform "ping ponging" to take the output of the first pass and then send it for the second pass. In my example I want to draw to the R channel and then draw to the G channel and produce a simple Venn Diagram in the shader, but need to detect overlap. I can currently detect one or the other but not overlap. There are a red and green circle overlapping, and I want to put a dynamic texture map in the overlap region. I can currently put it in either or. Below is how it looks in the shader. -------------------------------- Texture2D shaderTexture; SamplerState SampleType; ////////////// // TYPEDEFS // ////////////// struct PixelInputType { float4 position : SV_POSITION; float2 tex0 : TEXCOORD0; float2 tex1 : TEXCOORD1; float4 color : COLOR; }; //////////////////////////////////////////////////////////////////////////////// // Pixel Shader //////////////////////////////////////////////////////////////////////////////// float4 main(PixelInputType input) : SV_TARGET { float4 textureColor0; float4 textureColor1; // Sample the pixel color from the texture using the sampler at this texture coordinate location. textureColor0 = shaderTexture.Sample(SampleType, input.tex0); textureColor1 = shaderTexture.Sample(SampleType, input.tex1); if (input.color[0]==1.0f && input.color[1]==1.0f) // Requires multi-pass textureColor0 = textureColor1; return textureColor0; } Here is the calling code (that needs to be modified) m_d3dContext->IASetVertexBuffers(0, 2, vbs, strides, offsets); m_d3dContext->IASetIndexBuffer(m_indexBuffer.Get(), DXGI_FORMAT_R32_UINT,0); m_d3dContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST); m_d3dContext->IASetInputLayout(m_inputLayout.Get()); m_d3dContext->VSSetShader(m_vertexShader.Get(), nullptr, 0); m_d3dContext->VSSetConstantBuffers(0, 1, m_constantBuffer.GetAddressOf()); m_d3dContext->PSSetShader(m_pixelShader.Get(), nullptr, 0); m_d3dContext->PSSetShaderResources(0, 1, m_SRV.GetAddressOf()); m_d3dContext->PSSetSamplers(0, 1, m_QuadsTexSamplerState.GetAddressOf());

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• Engine Rendering pipeline : Making shaders generic

  - by fakhir

  I am trying to make a 2D game engine using OpenGL ES 2.0 (iOS for now). I've written Application layer in Objective C and a separate self contained RendererGLES20 in C++. No GL specific call is made outside the renderer. It is working perfectly. But I have some design issues when using shaders. Each shader has its own unique attributes and uniforms that need to be set just before the main draw call (glDrawArrays in this case). For instance, in order to draw some geometry I would do: void RendererGLES20::render(Model * model) { // Set a bunch of uniforms glUniformMatrix4fv(.......); // Enable specific attributes, can be many glEnableVertexAttribArray(......); // Set a bunch of vertex attribute pointers: glVertexAttribPointer(positionSlot, 2, GL_FLOAT, GL_FALSE, stride, m->pCoords); // Now actually Draw the geometry glDrawArrays(GL_TRIANGLES, 0, m->vertexCount); // After drawing, disable any vertex attributes: glDisableVertexAttribArray(.......); } As you can see this code is extremely rigid. If I were to use another shader, say ripple effect, i would be needing to pass extra uniforms, vertex attribs etc. In other words I would have to change the RendererGLES20 render source code just to incorporate the new shader. Is there any way to make the shader object totally generic? Like What if I just want to change the shader object and not worry about game source re-compiling? Any way to make the renderer agnostic of uniforms and attributes etc?. Even though we need to pass data to uniforms, what is the best place to do that? Model class? Is the model class aware of shader specific uniforms and attributes? Following shows Actor class: class Actor : public ISceneNode { ModelController * model; AIController * AI; }; Model controller class: class ModelController { class IShader * shader; int textureId; vec4 tint; float alpha; struct Vertex * vertexArray; }; Shader class just contains the shader object, compiling and linking sub-routines etc. In Game Logic class I am actually rendering the object: void GameLogic::update(float dt) { IRenderer * renderer = g_application->GetRenderer(); Actor * a = GetActor(id); renderer->render(a->model); } Please note that even though Actor extends ISceneNode, I haven't started implementing SceneGraph yet. I will do that as soon as I resolve this issue. Any ideas how to improve this? Related design patterns etc? Thank you for reading the question.

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• Strange rendering in XNA/Monogame

  - by Gerhman

  I am trying to render G-Code generated for a 3d-printer as the printed product by reading the file as line segments and the drawing cylinders with the diameter of the filament around the segment. I think I have managed to do this part right because the vertex I am sending to the graphics device appear to have been processed correctly. My problem I think lies somewhere in the rendering. What basically happens is that when I start rotating my model in the X or Y axis then it renders perfectly for half of the rotation but then for the other half it has this weird effect where you start seeing through the outer filament into some of the shapes inside. This effect is the strongest with X rotations though. Here is a picture of the part of the rotation that looks correct: And here is one that looks horrible: I am still quite new to XNA and/Monogame and 3d programming as a whole. I have no idea what could possibly be causing this and even less of an idea of what this type of behavior is called. I am guessing this has something to do with rendering so have added the code for that part: protected override void Draw(GameTime gameTime) { GraphicsDevice.Clear(Color.Black); basicEffect.World = world; basicEffect.View = view; basicEffect.Projection = projection; basicEffect.VertexColorEnabled = true; basicEffect.EnableDefaultLighting(); GraphicsDevice.SetVertexBuffer(vertexBuffer); RasterizerState rasterizerState = new RasterizerState(); rasterizerState.CullMode = CullMode.CullClockwiseFace; rasterizerState.ScissorTestEnable = true; GraphicsDevice.RasterizerState = rasterizerState; foreach (EffectPass pass in basicEffect.CurrentTechnique.Passes) { pass.Apply(); GraphicsDevice.DrawPrimitives(PrimitiveType.TriangleList, 0, vertexBuffer.VertexCount); } base.Draw(gameTime); } I don't know if it could be because I am shading something that does not really have a texture. I am using this custom vertex declaration I found on some tutorial that allows me to store a vertex with a position, color and normal: public struct VertexPositionColorNormal { public Vector3 Position; public Color Color; public Vector3 Normal; public readonly static VertexDeclaration VertexDeclaration = new VertexDeclaration ( new VertexElement(0, VertexElementFormat.Vector3, VertexElementUsage.Position, 0), new VertexElement(sizeof(float) * 3, VertexElementFormat.Color, VertexElementUsage.Color, 0), new VertexElement(sizeof(float) * 3 + 4, VertexElementFormat.Vector3, VertexElementUsage.Normal, 0) ); } If any of you have ever seen this type of thing please help. Also, if you think that the problem might lay somewhere else in my code then please just request what part you would like to see in the comments section.

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• XNA - Moving Background Calculations

  - by Jesse Emond

  Hi, My question is relatively hard to explain(for me, at least), so I'll go one step at a time and just tell me in the comments if it's not clear enough. So I'm making a "Defend Your Castle" type 2D game, where two players own a castle and create units that will move horizontally to try to destroy the opponent's base. Here's a screenshot of the game: The distance between both castles is much bigger in a real game though, bigger than the screen's width actually. Because the distance is bigger than the screen's width, I had to implement a simple 2D camera: Camera2D, which only holds a Location Vector2 (and I always make sure this camera is within the field area). Then, I just move all the game elements(castles, units, health bars) by that location, so that if a unit is at (5, 0), and the camera's location is (5, 0), then the unit's position will be moved by 5 units to the left, making it (0, 0) on the screen. At first, I simply used a static background with mountains and clouds(yeah, those are supposed to be mountains and clouds). Obviously, this looked awful: when you moved the camera, the background would stay immobile. Instead, I'd like to make a moving background, kind of a "scrolling" one. But rather than making a background with the same width as the distance between the castles, I'd like to make one that is a little bit smaller(but still bigger than the screen's width). I thought this would create an effect of "distance" with the background(but it might just look awful, too). Here's the background I'm testing with: I tried different ways, but none of them seems to work. I tried this: float backgroundFieldRatio = BackgroundTexture.Width / fieldWidth;//find the ratio between the background and the field. float backgroundPositionX = -cam.Location.X * backgroundFieldRatio;//move the background to the left When I run this with fieldWith = 1600, BackgroundTexture.Width = 1500 and while looking at the rightmost area, the background is offset to the left by a too big amount, and we can see the black clear color in the back, as you can see here: I hope I explained properly what I'm trying to achieve. Thank you for your time. Note: I didn't know what to look for on Google, so I thought I'd ask here.

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• how to get an SDP record for bluetooth service??

  - by user302798

  Hi I'm new to both winsock and bluetooth programming. I need to develop a bluetooth service to run on a pc. Looking at the MSDN library they say to use WSASetService(http://msdn.microsoft.com/en-us/library/aa362921%28VS.85%29.aspx) function to publish a service. The problem is that the WSAQUERYSET(http://msdn.microsoft.com/en-us/library/aa362920%28VS.85%29.aspx) structure, that has to be passed to WSASetService, needs a binary SDP record and i don't know how to get it. In the Windows embedded section of the MSDN library they describe a procedure to obtain an SDP record using Bthnscreate. I installed Windows CE 6 to use this tool but i can't find it in the install directory nor in the entire system. How can i get an SDP record? Thanks!

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• CodePlex Daily Summary for Wednesday, August 15, 2012

  CodePlex Daily Summary for Wednesday, August 15, 2012Popular ReleasesTFS Workbench: TFS Workbench v2.2.0.10: Compiled installers for TFS Workbench 2.2.0.10 Bug Fix Fixed bug that stopped the change workspace action from working.MoltenMercury: MoltenMercury 1.0 beta 1: This is initial implementation of the MoltenMercury with everything running but not throughoutly tested. Release contains a zip file with program binaries and a zip file containing resources. Before using please create a new directory named data in the same directory with program executables and extract DefaultCharacter zip file in there. If you have ???????????, you can simply place executables into the same directory with the program mentioned above. MoltenMercury supports character resour...SharePoint Column & View Permission: SharePoint Column and View Permission v1.0: Version 1.0 of this project. If you will find any bugs please let me know at enti@zoznam.sk or post your findings in Issue TrackerSPListViewFilter: Version 1.6: Layout selection: http://blog.vitalyzhukov.ru/imagelibrary/120815/Settings_Layouts.pngConsoleHoster: ConsoleHoster Version 1.2: Cleanup some logging UI impreovements: Fixed the bug with _ character in project-name Fixed the bug with tab close button to be X style Fixed the style of search content bar Fixed the bug with disappearing Edit project window Moved the Clear History button to the taskbar and added also a menu item Changed the QC button to CH Applied project colors to tab headersMicrosoft Ajax Minifier: Microsoft Ajax Minifier 4.60: Allow for CSS3 grid-column and grid-row repeat syntax. Provide option for -analyze scope-report output to be in XML for easier programmatic processing; also allow for report to be saved to a separate output file.Diablo III Drop Statistics Service: 1.0: Client OnlyClosedXML - The easy way to OpenXML: ClosedXML 0.67.2: v0.67.2 Fix when copying conditional formats with relative formulas v0.67.1 Misc fixes to the conditional formats v0.67.0 Conditional formats now accept formulas. Major performance improvement when opening files with merged ranges. Misc fixes.Umbraco CMS: Umbraco 4.8.1: Whats newBug fixes: Fixed: When upgrading to 4.8.0, the database upgrade didn't run Update: unfortunately, upgrading with SQLCE is problematic, there's a workaround here: http://bit.ly/TEmMJN The changes to the <imaging> section in umbracoSettings.config caused errors when you didn't apply them during the upgrade. Defaults will now be used if any keys are missing Scheduled unpublishes now only unpublishes nodes set to published rather than newest Work item: 30937 - Fixed problem with Fi...MySqlBackup.NET - MySQL Backup Solution for C#, VB.NET, ASP.NET: MySqlBackup.NET 1.4.4 Beta: MySqlBackup.NET 1.4.4 beta Fix bug: If the target database's default character set is not UTF8, UTF8 character will be encoded wrongly during Import. Now, database default character set will be recorded into Dump File at line of "SET NAMES". During import(restore), MySqlBackup will again detect and use the target database default character char set. MySqlBackup.NET 1.4.2 beta Fix bug: MySqlConnection is not closed when AutoCloseConnection set to true after Export or Import completed/halted. M...patterns & practices - Unity: Unity 3.0 for .NET 4.5 and WinRT - Preview: The Unity 3.0.1208.0 Preview enables Unity to work on .NET 4.5 with both the WinRT and desktop profiles. This is an updated version of the port after the .NET Framework 4.5 and Windows 8 have RTM'ed. Please see the Release Notes Providing feedback Post your feedback on the Unity forum Submit and vote on new features for Unity on our Uservoice site.LiteBlog (MVC): LiteBlog 1.31: Features of this release Windows8 styled UI Namespace and code refactoring Resolved the deployment issues in the previous release Added documentation Help file Help file is HTML based built using SandCastle Help file works in all browsers except IE10Self-Tracking Entity Generator for WPF and Silverlight: Self-Tracking Entity Generator v 2.0.0 for VS11: Self-Tracking Entity Generator for WPF and Silverlight v 2.0.0 for Entity Framework 5.0 and Visual Studio 2012Coding4Fun Tools: Coding4Fun.Phone.Toolkit v1.6.0: New Stuff ImageTile Control - think People Tile MicrophoneRecorder - Coding4Fun.Phone.Audio GzipWebClient - Coding4Fun.Phone.Net Serialize - Coding4Fun.Phone.Storage this is code I've written countless times. JSON.net is another alternative ChatBubbleTextBox - Added in Hint TimeSpan languages added: Pl Bug Fixes RoundToggleButton - Enable Visual State not being respected OpacityToggleButton - Enable Visual State not being respected Prompts VS Crash fix for IsPrompt=true More...AssaultCube Reloaded: 2.5.2 Unnamed: Linux has Ubuntu 11.10 32-bit precompiled binaries and Ubuntu 10.10 64-bit precompiled binaries, but you can compile your own as it also contains the source. If you are using Mac or other operating systems, please wait while we try to pack it. Try to compile it. If it fails, download a virtual machine. The server pack is ready for both Windows and Linux, but you might need to compile your own for Linux (source included) Added 3rd person Added mario jumps Fixed nextprimary code exploit ...NPOI: NPOI 2.0: New features a. Implement OpenXml4Net (same as System.Packaging from Microsoft). It supports both .NET 2.0 and .NET 4.0 b. Excel 2007 read/write library (NPOI.XSSF) c. Word 2007 read/write library(NPOI.XWPF) d. NPOI.SS namespace becomes the interface shared between XSSF and HSSF e. Load xlsx template and save as new xlsx file (partially supported) f. Diagonal line in cell both in xls and xlsx g. Support isRightToLeft and setRightToLeft on the common spreadsheet Sheet interface, as per existin...BugNET Issue Tracker: BugNET 1.1: This release includes bug fixes from the 1.0 release for email notifications, RSS feeds, and several other issues. Please see the change log for a full list of changes. http://support.bugnetproject.com/Projects/ReleaseNotes.aspx?pid=1&m=76 Upgrade Notes The following changes to the web.config in the profile section have occurred: Removed <add name="NotificationTypes" type="String" defaultValue="Email" customProviderData="NotificationTypes;nvarchar;255" />Added <add name="ReceiveEmailNotifi...????: ????2.0.5: 1、?????????????。RiP-Ripper & PG-Ripper: PG-Ripper 1.4.01: changes NEW: Added Support for Clipboard Function in Mono Version NEW: Added Support for "ImgBox.com" links FIXED: "PixHub.eu" links FIXED: "ImgChili.com" links FIXED: Kitty-Kats Forum loginPlayer Framework by Microsoft: Player Framework for Windows 8 (Preview 5): Support for Smooth Streaming SDK beta 2 Support for live playback New bitrate meter and SD/HD indicators Auto smooth streaming track restriction for snapped mode to conserve bandwidth New "Go Live" button and SeekToLive API Support for offset start times Support for Live position unique from end time Support for multiple audio streams (smooth and progressive content) Improved intellisense in JS version Support for Windows 8 RTM ADDITIONAL DOWNLOADSSmooth Streaming Client SD...New ProjectsA Java Open Platform: A Java Open PlatformAutomation Tools: noneAzManPermissions: Allows AzMan (Authorization Manager) operation permission checks declaratively and imperatively. It can connect to AzMan stores directly or through a service.Configuration Manager 2012 Automation: Configuration Manager 2012 Automation is a powershell project to help perform the basic implementation of a CM12 infrastructure...Dynamicweb Blog Engine 2012: A simple blog engine built on Dynamicweb.E Lixo: Projeto E_LIXOEasy Windows Service Manager: Easy Windows Service Manager (ewsm) is a desktop utility that enables the easily management of Windows services. flexwork: A Flex Pluggable Extension FrameworkGit On Codeplex: Just trying git on CodePlexGT.BlogBox: Blogsite-Webtemplate for SharePoint 2010gvPoco: gvPoco is a .NET class library for the Google Visualization Charts API. IAllenSoft: IAllenSoft is a silverlight control library, which originates from some idea. Its target is to improve development productivity for silverlight projects. ListNetRanker: ListNetRanker is a listwise ranker based on machine learning. Given documents and query's feature set, ListNetRanker will rank these documents by ranking score.lvyao: stillMetro Tic-Tac-Toe: Tic-Tac-Toe is a Windows 8 developed using MonoGame for Windows 8. The intent of this code is to help XNA developers with porting their XNA apps to Windows 8myProject: my private code Nintemulator: Nintemulator is a work in progress multi-system emulator. Plans for emulated systems are NES, SNES, GB/GBC, GBA.Picnic Game: Picnic Game is a 2D game written in Small Basic. The objective is to get the pizza to the basket before you get stung or time runs out.Picnic Level Editor: Picnic Game is a 2D 3rd person game where you are an ant, and you have to gather the pizza and bring it to the basket before you get stung by a bee.ResCom: ResCom is a community response system for Windows Phone 8Scalable Object Persistence (SOP) Framework: Scalable object persistence (SOP) framework. RDBMS "index" like performance and scale on data Stores but without the unnecessary baggage, fine grained control.self-balancing-avl-tree: Self balancing AVL tree with Concat and Split operations.SEMS(synthetical evaluation management system): that's itsergionadal-mvc: Mvc para sistemas AndroidTFS Test Plan Builder: TFS Test plan builder is a tool to assis users of Microst Test Manager to build new test plans then moving from sprint to sprint or release to release The Excel Library: DExcelLibrary is a project that allows you to load and display "any" excel file given a specificaction of with areas/grids to loadTimePunch Metro Wpf Library: This library contains WPF controls and MVVM Implementation to create touch optimized applications in the new Windows 8 UI style formerly known as "Metro". UniPie: UniPie is a system wide pie menu system for sending key-mouse button combinations to certain applications. It can also convert one combo to another.xref: This is an extension of the classic FizzBuzz problem.ZombieRPG: Basic Zombie RPG game made using Game Maker??????: ZHJP

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• Need ideas for an algorithm to draw irregular blotchy shapes

  - by Yttermayn

  I'm looking to draw irregular shapes on an x,y grid, and I'd like to come up with a simple, fast method if possible. My only idea so far is to draw a bunch of circles of random sizes very near each other, but at a random distance apart from a more or less central coordinate, then fill in any blank spaces. I realize this is a clunky, inelegant method, hopefully it will give you a rough idea of the kinds of rounded, random blotchy shapesI'm shooting for. Please suggest methods to accomplish this, I'm not so much interested in code. I can noodle that part out myself. Thanks!

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• How to choose cell to put entity in in an uniform grid used for broad phase collision detection?

  - by nathan

  I'm trying to implement the broad phase of my collision detection algorithm. My game is an arcade game with lot of moving entities in an open space with relatively equivalent sizes. Regarding the above specifications, i decided to use an uniform grid for space partitioning. The problem i have right know is how to efficiently choose in which cells an entity should be added. ATM i'm doing something like this: for (int x = 0; x < gridSize; x++) { for (int y = 0; y < gridSize; y++) { GridCell cell = grid[x][y]; cell.clear(); //remove the previously added entities for (int i = 0; i < entities.size(); i++) { Entity e = entities.get(i); if (cell.isEntityOverlap(e)) { cell.add(e); } } } } The isEntityOverlap is a simple method i added my GridCell class. public boolean isEntityOverlap(Shape s) { return cellArea.intersects(s); } Where cellArea is a Rectangle. cellArea = new Rectangle(x, y, CollisionGrid.CELL_SIZE, CollisionGrid.CELL_SIZE); It works but it's damn slow. What would be a fast way to know all the cells an entity overlaps? Note: by "it works" i mean, the entities are contained in the good cells over the time after movements etc.

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• SAT and then what?

  - by Marek

  I am on my way to make another Arkanoid game but this time I decided that I want it a little bit more realistic than just checking intersections between AABB and inverting one vector's component on collision. So I found SAT but I don't know how can I change direction of the ball in realistic matter. Maybe I'm wrong but it seems like knowing MTV doesn't give me much. So my question is what algorithms should I use to make it realistic? I also care about possibility of spinning ball with a pallet. I don't know how to do it exactly but I guess I will need to consider acceleration of the pallet.

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• Rotation based on x coordinate and x velocity?

  - by Lewis

  -(void) accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration { float deceleration = 0.3f, sensitivity = 8.0f, maxVelocity = 150; // adjust velocity based on current accelerometer acceleration playerVelocity.x = playerVelocity.x * deceleration + acceleration.x * sensitivity; // we must limit the maximum velocity of the player sprite, in both directions (positive & negative values) playerVelocity.x = fmaxf(fminf(playerVelocity.x, maxVelocity), -maxVelocity); } Hi, I want to rotate my sprite based on the velocity and accelerometer input. My sprite can move along the X axis like so: <--------- sprite ----------- But it always faces forwards, if it is moving left I want it to point slightly to the left, the degree of how far it is pointing to be judged from the velocity. This should also work for the right. I tried using atan but as the y velocity and position is always the same the function returns 0, which doesn't rotate it at all. Any ideas? Regards, Lewis.

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• Why does the location of my vehicle spawner change when I open a matinee?

  - by Gareth Jones

  I'm doing work with InterActors and vehicle spawners in Unreal Tournament 3's editor, and have it set up like so: (The Walkway its on is the InterActor) However if I go in Kemsit and open the matinee that handles the InterActor, this happens: It does look to me like the editor is moving it out of the way so I can see the InterActor (which would be very clever) because only the image of the vehicle moves, not the gizmo, nor does the vehicle spawn in that location in game. Is this the case?

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• Capitalizing on JavaScript's prototypal inheritance

  - by keithjgrant

  JavaScript has a class-free object system in which objects inherit properties directly from other objects. This is really powerful, but it is unfamiliar to classically trained programmers. If you attempt to apply classical design patterns directly to JavaScript, you will be frustrated. But if you learn to work with JavaScript's prototypal nature, your efforts will be rewarded. ... It is Lisp in C's clothing. -Douglas Crockford What does this mean for a game developer working with canvas and HTML5? I've been looking over this question on useful design patterns in gaming, but prototypal inheritance is very different than classical inheritance, and there are surely differences in the best way to apply some of these common patterns. For example, classical inheritance allows us to create a moveableEntity class, and extend that with any classes that move in our game world (player, monster, bullet, etc.). Sure, you can strongarm JavaScript to work that way, but in doing so, you are kind of fighting against its nature. Is there a better approach to this sort of problem when we have prototypal inheritance at our fingertips?

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• How exactly does linking in C# work?

  - by akosch

  I want to use a GPL'd library in my C# application, but not necessarily release my own code under the GPL. If I understand correctly linking against a GPL'd library using dynamic linking and not distributing the library in question means I can license my own app in any way I want (the users of my software would then be required to install the library themselves). Please correct me if I'm wrong. My question is: how can I link against a DLL this way in C#? Do I only need to use C#'s using directive and add the DLL as a reference to the compiler? Is the distribution of the resulting bytecode legal?

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• How can I simulate objects floating on water without a physics engine?

  - by user1075940

  In my game the water movement is done in a shader using Gerstner equations. The water movement looks realistic enough for a school project but I encounter serious problem when I wanted to do sailing on waves (similar to this). I managed to do collision with land by calculating quad's vertices and normals beneath ship, however same method can not be applied to water because XZ are displaced and Y is calculated in a shader :( How to approach this problem ? Is it possible to retrieve transformed grid from shader? Unfortunately no external physics libraries can be used.

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• Long delays in Unity3D substance generation

  - by Josh Buhler

  Currently working on an iOS/Android project in Unity3d, and we're seeing some incredibly long times for generating substances between testing runs. We can run the game, but once we shut down the playback, Unity begins to re-import all off the substances built using Substance Designer. As we've got a lot of these in our game, it's starting to lead to 5 minute delays between testing runs just to test a small change. Any suggestions or parameters we should check that could possibly prevent Unity from needing to regenerate these substances every time? Shouldn't it be caching these things somewhere?

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• Pylucene in Python 2.6 + MacOs Snow Leopard

  - by jbastos

  Greetings, I'm trying to install Pylucene on my 32-bit python running on Snow Leopard. I compiled JCC with success. But I get warnings while making pylucene: ld: warning: in build/temp.macosx-10.6-i386-2.6/build/_lucene/__init__.o, file is not of required architecture ld: warning: in build/temp.macosx-10.6-i386-2.6/build/_lucene/__wrap01__.o, file is not of required architecture ld: warning: in build/temp.macosx-10.6-i386-2.6/build/_lucene/__wrap02__.o, file is not of required architecture ld: warning: in build/temp.macosx-10.6-i386-2.6/build/_lucene/__wrap03__.o, file is not of required architecture ld: warning: in build/temp.macosx-10.6-i386-2.6/build/_lucene/functions.o, file is not of required architecture ld: warning: in build/temp.macosx-10.6-i386-2.6/build/_lucene/JArray.o, file is not of required architecture ld: warning: in build/temp.macosx-10.6-i386-2.6/build/_lucene/JObject.o, file is not of required architecture ld: warning: in build/temp.macosx-10.6-i386-2.6/build/_lucene/lucene.o, file is not of required architecture ld: warning: in build/temp.macosx-10.6-i386-2.6/build/_lucene/types.o, file is not of required architecture ld: warning: in /Developer/SDKs/MacOSX10.4u.sdk/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/JCC-2.3-py2.6-macosx-10.3-fat.egg/libjcc.dylib, file is not of required architecture ld: warning: in /Developer/SDKs/MacOSX10.4u.sdk/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/JCC-2.3-py2.6-macosx-10.3-fat.egg/libjcc.dylib, file is not of required architecture build of complete Then I try to import lucene: MacBookPro:~/tmp/trunk python Python 2.6.3 (r263:75184, Oct 2 2009, 07:56:03) [GCC 4.0.1 (Apple Inc. build 5493)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import pylucene Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: No module named pylucene >>> import lucene Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/lucene-2.9.0-py2.6-macosx-10.6-i386.egg/lucene/__init__.py", line 7, in <module> import _lucene ImportError: dlopen(/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/lucene-2.9.0-py2.6-macosx-10.6-i386.egg/lucene/_lucene.so, 2): Symbol not found: __Z8getVMEnvP7_object Referenced from: /Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/lucene-2.9.0-py2.6-macosx-10.6-i386.egg/lucene/_lucene.so Expected in: flat namespace in /Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/lucene-2.9.0-py2.6-macosx-10.6-i386.egg/lucene/_lucene.so >>> Any hints?

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• How does one escape the GPL?

  - by tehtros

  DISCLAIMER I don't pretend to know anything about licensing. In fact, everything I say below may be completely false! Backstory: Recently, I've been looking for a decent game engine, and I think I've found one that I really like, Cafu Engine. However, they have a dual licensing plan, where everything you make with the engine is forced under GPL, unless you pay for a commercial license. I'm not saying that it's a bad engine, they even say that they are very relaxed about the licensing fees. However, the fact that it even involves the GPL scares me. So my question is basicly, how does one escape the GPL. Here's an example: The id Tech engine, also known as the Quake engine, or the Doom engine, was the base for the popular Source engine. However, the id Tech engine has been released under the GPL, and the Source engine is proprietary. Did Valve get a different license? Or did they do something to escape the GPL? Is there a way to escape the GPL? Or, if you use GPL'd source code as a base for another project, are you forced to use the GPL, and make your source code available to the world. Could some random person take the id Tech engine, modify it past the point of recognition, then use it as a proprietary engine for commercial products? Or are they required to make it open source. One last thing, I generally have no problem what-so-ever with open source. However I feel that open source has it's place, but that is not in the bushiness world.

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• Handling early/late/dropped packets for interpolation in a 3D multiplayer game

  - by Ben Cracknell

  I'm working on a multiplayer game that for the purposes of this question, is most similar to Team Fortress. Each network data packet will contain the 3D position of the target moving object. (this object could be another player) The packets are sent on a fixed interval, and linear interpolation will be used to smooth the transition between packets. Under normal circumstances, interpolation will occur between the second-to-last packet, and the last packet received. The linear interpolation algorithm is the same as this post: Interpolating positions in a multiplayer game I have the same issue as in that post, but the answers don't seem like they will work in my situation. Consider the following scenario: Normal packet timing, everything is okay The next expected packet is late. That's okay, we'll just extrapolate based on previous positions The late packet eventually arrives with corrections to our extrapolation. Now what do we do with its information? The answers on the above post suggest we should just interpolate to this new packet's position, but that would not work at all. If we have already extrapolated past that point in time, moving back would cause rubber-banding. The issue is similar in the case of an early or dropped packet. So I believe what I am looking for is some way to smoothly deal with new information in an ongoing interpolation/extrapolation process. Since I might be moving on to quadratic or even cubic interpolation, it would be great if the same solutiuon could be applied to those as well.

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• Can I run into legal issues with random names?

  - by Nathan Sabruka

  I'm currently building a game whose NPC's are going to be assigned a random gender and a random name for the right gender. To do this I will be using a "database" of names (actually a text file with tuples). There would also be a list of last names, which will be added to the first name also randomly. My question is the following. Suppose one such random name is "George Bush", and this person has been randomly assigned the job of president. As you can see, this could easily be seen as having been "copied" from a real-life person. The main issue is this. Names will be randomly-generated, yes, but the seed for random-number generation will be constant. In other words, the name of an NPC would be randomly-generated, i.e. I wouldn't choose it, but it would be the same for every player. Could this get me in trouble? We cannot verify all possible names, since the generated number of NPC's could be potentially limitless (new NPC's are being created whenever needed).

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• Simplest way to use Steam Leaderboards from C# [on hold]

  - by Miau

  We are about to integrate steamworks for leaderboards and achievements into our game. I see there are many open and closed source libraries that can be used to use SteamWorks from C#. Rolling our own wrapper can be done, but if the other libraries are reliable then it would be better to use and perhaps contribute back if we see any obvious gaps. Have you used any and if so what was your experience with the different libraries? Specifically for Leaderboards and achievements The ones I found are: SteamWorks.net Steam4Net Ludosity (can be used outside of Unity apparently)

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