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• Proper way to use a RenderTarget2D to draw multiple textures?

  - by TheBroodian

  In the process of trying to resolve a split screen issue, I've been trying to use a RenderTarget2D to draw a portion of my scene to a Texture2D, and then again to another Texture2D, but the end result of both Texture2D's is coming out the same. Can anybody tell me what I'm doing wrong? Texture2D camera1Render; Texture2D camera2Render; GraphicsDevice.SetRenderTarget(RenderTarget); GraphicsDevice.Clear(Color.Transparent); map.Draw(mapDisplayDevice, Camera1, new Location(0, 0), false); camera1Render = RenderTarget; GraphicsDevice.Clear(Color.Transparent); map.Draw(mapDisplayDevice, Camera2, new Location(0, 0), false); camera2Render = RenderTarget; SetRenderTarget(null);

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• Interview question: How would you implement Google Search?

  - by ripper234

  Supposed you were asked in an interview "How would you implement Google Search?" How would you answer such a question? There might be resources out there that explain how some pieces in Google are implemented (BigTable, MapReduce, PageRank, ...), but that doesn't exactly fit in an interview. What overall architecture would you use, and how would you explain this in a 15-30 minute time span? I would start with explaining how to build a search engine that handles ~ 100k documents, then expand this via sharding to around 50M docs, then perhaps another architectural/technical leap. This is the 20,000 feet view. What I'd like is the details - how you would actually answer that in an interview. Which data structures would you use. What services/machines is your architecture composed of. What would a typical query latency be? What about failover / split brain issues? Etc...

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• Updated Payroll Tax Liability Formula for Dynamics GP

  - by Ryan McBee

  Prior to the latest Payroll Update for Great Plains, you could do an audit check of the Payroll Tax Liability GP calculation by simply taking Federal Tax Witholding + Fica Medicare Withholding times 2 + Fica SSN times 2.  As you probably know by now, the Employers portion of FICA is 6.2% and the Employers portion has been reduced to 4.2%. However, I have had a number of clients contact me and say this formula is no longer applicable and have asked for a revised formula.  The new formula is described below and ties out to a sample Payroll Run using Fabrikam.   As you can see from above, the prior formula is not applicable and the new audit check is as follows; Federal Tax WH  $                  6,655.17   Employee Medicare  $                     408.47   Employees SS  $                  1,746.54   Employer Medicare  $                     408.47   Employer SS  $                  1,746.55 (FICA Owned – FICA Medicare WH)       Total Tax Liability  $               10,965.20   I have talked with Microsoft and at this time, they have no intent on modifying the report to split out the employer (6.2%) and employee (4.2%) FICA portions.

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• How to categorize textures into atlases

  - by Esa

  I am going to use texture atlasing for the first time in my games, and at first it seemed like a great idea to split textures into atlases by categorizing them by terrain themes e.g ForestTextures, WinterTextures etc. But that could cause a problem when for example a flower has to use transparency shader and other models use a diffuse shader. So those cannot be atlased into the same texture. Thus, would atlasing textures into themes as mentioned before and then splitting them by shader like ForestDiffuse and ForestTransparent be good? Or is there a better way to categorize and build them?

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• Object-Oriented OpenGL

  - by Sullivan

  I have been using OpenGL for a while and have read a large number of tutorials. Aside from the fact that a lot of them still use the fixed pipeline, they usually throw all the initialisation, state changes and drawing in one source file. This is fine for the limited scope of a tutorial, but I’m having a hard time working out how to scale it up to a full game. How do you split your usage of OpenGL across files? Conceptually, I can see the benefits of having, say, a rendering class that purely renders stuff to screen, but how would stuff like shaders and lights work? Should I have separate classes for things like lights and shaders?

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• Is the "App" side of Windows 8 practical for programmers?

  - by jt0dd

  I like the tablet-friendliness of Windows 8 Apps, and some of the programming apps seem pretty neat, but there are many aspects that make me think I would have difficulty using this format for an efficient programming environment: Unlike the desktop + multiple windows setup, I can't simply drag my files around from source, to FTP or SFTP file managers, between folders, web applications, and into other apps, etc. I can't switch between apps as fast. This could have different implications with different monitor setups, but it seems like a shaky setup for an agile workflow. The split screen functionality is cool, but it doesn't seem to allow for as much maneuverability as the classic desktop setup. This could just require me getting used to the top-left corner shortcut, but it does bother me that I have to move my mouse all the way up there to see my different windows. These aspects could become relevant in the event that Windows were to move further towards their "app" structure and less towards the Windows 7 style. I'm wondering if anyone has been able to utilize the "App" side of Windows 8 for an efficient programming workflow.

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• Cannot Update through Manager or Terminal/ Software Center Does Not Work

  - by BROBA

  I installed Tor a few days ago via the terminal. I deleted some hashtags in the gedit polipo, and changed my proxy settings in chrome, but was unable to make it work and have since changed all of it back. I then downloaded the Tor browser bundle which works great, but ever since then have been unable to download updates or new software. The update manager says to "check internet connection" and the software center displays a mostly blank screen under apps like "rhythmbox" and just says "available from main source" when I click on "use this source" a refresh symbol appears on the upper right corner of the software center for a split second, and then nothing happens. The app does not download and isn't available in the dash. When I try via the terminal it says it's unable to connect to my ip address. I tried changing the server and unchecking all the repository options for software sources, all to no avail. WHAT DID I DO?????

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• Possible problems in a team of programmers [on hold]

  - by John

  I am a "one man team" ASP.NET C#, SQL, HTML, JQuery programmer that wants to split workload with two other guys. Since I never actually thought of possible issue in a team of programmer, there are actually quite a few that came to my mind. delegating tasks (who works on what which is also very much related to security). I found Team Foundation Service could be helpful with this problem and started reading about it. Are there any alternatives? security (do now want for original code to be reused outside the project) How to prevent programmers from having access to all parts of code, and how to prevent them from using that code outside of project? Is trust or contract the only way?

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• Oracle Database Appliance Technical Boot Camp

  - by mseika

  Oracle Database Appliance Technical Boot Camp Wednesday 19th September 9.30 – 16.30 This session is designed to give our partners detailed sales and technical information to familiarise themselves with the Oracle Database Appliance. It is split into two sessions, the first aimed at sales and pre-sales technical support, and the second aimed at pre-sales and technical implementation staff. The agenda is as follows: Part 1 Oracle Engineered Systems Introducing the Oracle Database Appliance What is the target market? Competitive positioning Sales Plays Up sell opportunities Resell requirements and process Part 2 Hardware internals Download the appliance software kit Disabling / enabling cores Configuration and setup Oracle 11g R2 overview Backup strategies Please register here.

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• Will Google crawl session based website

  - by DonShwep

  I have a website, it is split into 3 categories but using PHP its an all-in one kind of style. When a user chooses a category on the home page a session is set, this is then used to set the style and contents of the website. Would Googlebot and other bots be able to still scan my website? If a page is accessed and no session is set then the user is sent back to the home page. I have created special links, that set a session but go straight to the contact page. Even this page doesn't seem to be showing up. Any ideas if a sitemap with specially crafted links (to set the session) will help Google?

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• How to install Visual Studio 2010 Search References and Pro Power Tools side by side

  - by Daniel Cazzulino

  The new Visual Studio 2010 Pro Power Tools bring a new Add Reference dialog that completely replaces the classic one when you click the familiar Add Reference command: It seems like a nice dialog that is more aligned with the new Add New dialog and the Extension Manager one. But for this particular case, I believe it's awfully overkill (what's the use of that right sidebar? what's the use for the categories of assemblies split between Framework and Extensions?). The (also new) Search References extension which I blogged about earlier, gives you the familiar classic dialog enhanced with the must-have Search capability:...Read full article

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• Speaking about ASP.NET MVC Extensibility at the Umbraco CodeGarden10

  Next week Ill be speaking about ASP.NET MVC Extensibility at the MVC pre-conference during annual Umbraco CodeGarden conference in Copenhagen starting next June 23rd. The presentation will be split in the two parts (just before and just after lunch) and it will cover the most of the main extensibility points of ASP.NET MVC which I covered in my most popular post: 13 ASP.NET MVC extensibility points you have to know. And I will also talk about the new extensibility points introduced in ASP.NET MVC...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Switching songs - MediaPlayer lags the game

  - by Fibericon

  When the player encounters a boss in the game I'm working on, I want to have the music change. It seems simple enough with the MediaPlayer class to fade out the current song, switch to another, and then fade the new song in. However, at the point where the second song starts, the game freezes for a split second. The songs in question aren't particularly large either - the first song is 1.7mb and the second song is 3.1mb, both mp3 format. This is the code I'm using to do it: protected void switchSong(GameTime gameTime) { if (!bossSongPlaying) { MediaPlayer.Volume -= ((float)gameTime.ElapsedGameTime.TotalSeconds/10); if (MediaPlayer.Volume < 0.05f) { MediaPlayer.Play(bossSong); MediaPlayer.Volume = 1.0f; bossSongPlaying = true; } } } What can I do to eliminate that momentary hang?

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• Technique to Display Multiple Browser Windows Tiled at Same time?

  - by Kendor

  I have a separate monitor that I use for Toodledo (a web-based task managment app), in which I like to display various views (Next Action Status, Waiting Status, Planning Status, and Overdue Due-Date items). I've been playing around with some add-ons on Firefox that allow you to split the browser, but they are cumbersome. I'm now trying Chrome, and opening 4 different browser windows that I've tiled on the screen in quadrants (I use the Compiz grid applet for this). This is not ideal as each browser replicates the URL bar and the tab, and I don't have opening ths windows automated upon restart. Chrome is great in managing screen real estate, but this is not ideal. In Firefox I tried various extension to hide interface elements, but it was very clunky... Am wondering whether anyyone has tried to do similar with TD, and how they achieved what I'm going after? Am wondering whether someone has a good technique for accomplishing what I'm looking for?

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• Python GUI and MVC - get variable from other module

  - by lyvic

  I am trying to split my code in different layers: GUI, reading the GUI, creating input, calculating the model, interpreting data, creating view, sending the view to the GUI. I got the idea of the MVC and would like to try to build my program that way. But I'm a little confused about how to exchange information between those modules. I'm running into problems with undefined global names and so forth. Example code how I'm trying to get out of this can be found here: http://stackoverflow.com/questions/17385373/setup-a-mvc-mvw-system-in-python-with-tkinter

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• PageRank sharing between domains?!

  - by Senthil

  I own three domains, say.. example.com, example.in, example.co.in I have bought the .in and .co.in TLDs only to protect the brand. But I have this question: If I make the other two also point to my hosting so that regardless of which one the user types, they are taken to the same website, will the PageRank be split into three and will each domain have one third the actual PR value? What should I do with the other two domains? Where should I point them to, if I don't intend to use them at all (i.e., what should I give in place of the ns1.myprovider.com, ns2.myprovider.com etc..?)

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• Oculus Rift with Antichamber

  - by Scott Hainline

  Antichamber runs great on linux (steam version). But it is not playable with the Oculus Rift at this point. The issues are: 1) no headtracking 2) graphics are not being split and distorted by Oculus SDK My current plan is to use LD_PRELOAD to add the functionality, this seems to be the linux equivalent of DLL injection. Antichamber appears to be using SDL, I'm hoping this can be configured to use the headtracking data as a joystick and apply the graphics distortion, but I am not sure which functions I should be looking for. Is there a simpler way of getting these issues resolved? Is SDL the right choice here? Would appreciate any information on how the Unreal Engine 3 works under linux; and library injection too.

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• Kinect joint coordinates and XNA animation

  - by Sweta Dwivedi

  I have written a program to record the x,y,z coordinated of the Hand joint and I want to animate my models 2D or 3D according to these coordinates. . .However the output of the x,y,z coordinates are fluctuating from -0 to 1 but not more than that.. So i assume I will need to multiply them back with the screen width and height, however it still doesnt seem to animate according to the original x,y,z points Any transformations I might be missing out? while ((line = r.ReadLine()) != null) { string[] temp = line.Split(','); int x = (int) float.Parse(temp[0]))* maxWidth); int y = (int) float.Parse(temp[1])) * maxHeight); }

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• DDD / Layers and legacy systems

  - by CSM

  I have to refactor a complex C# app (many dialogs, mixed logic and so on). There is a part managing the communication with special hardware equipments (sending commands and receive data via asynchronous c# callbacks). The code is "spaghetti" with mixed UI/Logic/Communication/etc and my task is to split the layers in a DDD sense. So, to which layer belongs a callback driver routine? The callbacks are creating "bubbles" in the system, up to the UI layer and because of this I cannot enforce the essential principle that any element of a layer depends only on other elements in the same layer or on elements of the layers "beneath" it. Thank you in advance.

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• Can't load any applications

  - by oshirowanen

  After installing Eclipse, I wanted to try to enable the global unity menu for Eclipse. Following a guide on the web, I was to make a change to: sudo nano /usr/lib/gtk-2.0/2.10.0/menuproxies/libappmenu.so by changing Eclipse to Xclipse. After making that change, and then running sudo ldconfig. and even restarting, I can no longer open any application. I just see the application appear on the screen for a split second and then it disappears. So far I have noticed that I can no longer load Eclipse and Chrome. Anyone know how to fix this? I have tried changing Xclipse back to Eclipse and running the command sudo ldconfig, but it makes no difference.

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• Enable Configurator for Return Orders

  - by ChristineS-Oracle

  With release 12.2.4 for non-referenced RMAs, Order Management will allow you to configure the model from Sales Order / Quick Sales Order windows. This is only allowable when profile  OM: Enable Configuration UI for RMA is set to Yes.  All selected options must be returnable, as well as all included items. Order Management explodes included items and creates options and option classes in a way similar to outbound orders. The application creates all selected components with same line number but different option/component number.  Additionally, the application does not allow re-configuration and/or deletion of any line if any line in the same configuration is received, fulfilled, closed, cancelled, or split. For additional information refer to the Oracle Order Management Release Notes for Release 12.2.4 (Doc ID 1906521.1).

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• Ubuntu 14.04 liveusb boot screen graphic errors

  - by user568109

  I am trying to install Ubuntu 14.04 on my Lenovo Y500 laptop. It came preinstalled with Windows 8. I want to install it in a separate partition with a USB drive. I have tried both Unetbootin and universal usb installer. But for some reason the screen after booting is crappy. The screen goes blank after selecting try ubuntu or install. If I try with nomodeset option the screen only displays on a small strip on the top. Which again is split into three. Each seem to be identical. It is not decent enough to begin installation. The graphic card in my laptop is Nvidia GT650M, if it helps. Maybe the problem is related to that. Can anyone help in fixing this error when installing Ubuntu.

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• Tool Review: Telerik JustDecompile

  - by Sam Abraham

  In the next few lines, I will be providing a brief review of Telerik’s JustDecompile, a free .Net decompiler and assembly browser. In using Telerik’s 2012 Q3 JustDecompile release, one can see many great features.  First off, I loved the built-in options for loading .Net assemblies automatically using the Open->Load Framework menu option. Other options enable loading assemblies from GAC, XAP URL or locally from disk. The ability to create an “Assembly List” is quiet handy for grouping and saving a “List” of DLLs to load. All loaded assemblies are shown in the left panel of a split-panel screen. Clicking an assembly expands all namespaces within. Drilling further to class level displays the actual source code in the right panel in either IL, C# or Visual Basic. In conclusion, JustDecompile has grown and quickly matured into an indispensible handy tool for us developers. Telerik’s effort in maintaining and updating JustDecompile as well as the company’s commitment to keeping it free is much appreciated and valued.

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• Failure to start grub with Wubi

  - by Marco Ceppi

  My laptop battery ran down and died while using Ubuntu 10.04 with Wubi. Upon recharge (and restart) selecting Ubuntu from the Windows Boot menu brings me to the typical prompt which says (and I paraphrase): Trying hd(0,0) on Disk... After that the screen flickers to white (for a split second) then black. No grub menu comes up (as I would expect) no cursor, no grub sh prompt. Nothing. I've tried switching TTYs to no avail. As there are no logs, I can't trouble shoot anything. I've run a check disk from windows (on the NTFS partition the root.disk is stored) with no luck. What is causing this failure to load grub (and, by association Ubuntu) - How can I restore my setup and get Ubuntu via Wubi working?

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• System that splits passwords across two servers

  - by Burning the Codeigniter

  I stumbled upon this news article on BBC, RSA splits passwords in two to foil hackers' attacks tl;dr - a (randomized) password is split in half and is stored across two separate servers, to foil hackers that gained access to either server upon a security breach. Now the main question is, how would this kind of system would be made... codespeaking, for PHP which I commonly develop on my web applications, the database password is normally stored in a configuration file, i.e. config.php with the username and password, in that case it is understandable that the passwords can be stolen if the security was compromised. However when splitting and sending the other half to the other server, how would this go on when making a communication to the other server (keeping in mind with PHP) since the other server password would be stored in a configuration file, wouldn't it? In terms of security is to keep the other server password away from the main one, just exactly how would the main server communicate, without exposing any other password, apart from the first server. This certainly makes me think...

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