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  • Why do browsers have so many possible exploits?

    - by Beau Martínez
    When browsing I am ocassionally given warnings about pages that host malware "that could damage my computer". I am seriously perplexed as to why, in 2010, browsers still have possible exploits and can be cracked. My question is "Why?". I'm assuming it's because of the quick development that occured in the browser wars which were unsufficiently tested, but I'm unsure. Surely WebKit would have patched all the issues in KHTML, or Gecko sorted out the flaws in Netscape's engine, and the IE coders sorted through their codebase to eliminate possible flaws? (Somewhat related: http://superuser.com/questions/117770/which-browser-is-the-most-secure-research-and-practically-based.)

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  • Export GFI MailArchiver e-mails for import into Exchange 2010 SP1 Personal Archiving

    - by pk.
    We have an existing installation of GFI MailArchiver 5 with several databases of archives (perhaps 100-150GB). The goal is to export each user's archived e-mail and then import it into Exchange 2010 SP1 Personal Archives. GFI has a tool to do this, but it's very rudimentary and has severe, frankly unworkable, limitations. It only allows me to query based on the e-mail headers. Due to the fact that we have multiple aliases that may show in multiple headers (To:, Cc:), not to mention the fact that this won't cover a user's membership in a distribution group at a given point in time, this tool will not suffice. Another option is for me extract the e-mails from the GFI databases without using the tool, but this would require me to write my own tool to reconstruct them and I really would rather not go down that path. I feel very stuck on this issue. Has anyone here done a similar migration? How can this best be handled?

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  • Why is my keyboard acting like the Ctrl key is pressed when I hit an F key?

    - by Dan Tao
    So, I'm gradually getting the hang of the Kinesis Advantage Pro keyboard that my wife bought me for Christmas. I love it so far. But something very strange happened today. (Note: I actually have no idea if this problem has anything to do with the Kinesis keyboard per se. All I know is that I never encountered this problem until after replacing my old keyboard with the Kinesis.) It seems that if I press an F key (e.g., F2), the computer starts acting like I'm holding down the Ctrl key. For example if I click on a link in my web browser, it now opens in a new tab. Or if I hit A all the text in the document I'm editing gets selected. This behavior persists until I manually hit the Ctrl key again. Has anyone seen anything like this before? What could cause such behavior?

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  • Developing professionally for both iOS, Android, web - an insight

    - by Scott Roberts
    This is not really a question on how to develop for both, I know various cross platform ways and so on. But I more want to know from developer standpoint how hard it is to basically develop iOS, Android and web apps? I am currently in my first job as a mobile/web developer. I have already developed my first iPhone/iPad app and now I have to develop the app for android because the web version I tried just didn't perform as well as needed and web databases just did not seem to make the cut. But I am not sure it's possible to be good at developing all 3 in terms of remembering all the api's etc. I wouldn't say I have an issue with the programming languages just how to use the api's for the various platforms. Also, all the other languages I look at, in my spare time, just feel like I am spreading myself to thin. Is it feasible for one person to be developing ios, android and web apps? Should I think about reducing it to iOS and web based apps? I develop everything by myself, so I have no one to discuss what the best solutions are for everything and I am just trying to workout as I go along. So any cross platform developers out there? Do companies have different teams for different platforms? Any insight would just help me get my head together. Hopefully this question makes sense.

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  • AutoVue 20.2 for Agile Released

    - by Kerrie Foy
    I saw an important post on the Oracle's AutoVue Enterprise Visualization Blog that I wanted to share with you all in the Agile community.  This was originally posted by Angus Graham here. AutoVue 20.2 for Agile Released Oracle’s AutoVue 20.2 for Agile PLM is now available on Oracle’s Software Delivery Cloud. This latest release allows Agile PLM customers to take advantage of new AutoVue 20.2 features in the following Agile PLM environments: 9.3.1.x; 9.3.0.  AutoVue 20.2 delivers improvements in the following areas. New Format Support: AutoVue 20.2 adds support for the latest versions of popular file formats including: ECAD: Cadence Concept HDL 16.5, Allegro Layout 16.5, Orcad Capture 16.5, Board Station ASCII Symbol Geometry, Cadence Cell Library MCAD: CATIA V5 R21, PTC Creo Parametric 1.0, Creo Element\Direct Modeling 17.10, 17.20, 17.25, 17.30, 18.00, SolidWorks 2012, SolidEdge ST3 & ST4, PLM XML 2D CAD: Creo Element/Direct Drafting 17.10 to 18.00 Office: MS Office 2010: Word, Excel, PowerPoint, Outlook Enhancements to AutoVue enterprise readiness: reliability and performance improvements, as well as security enhancements which adhere to Oracle’s Software Security Assurance standards Updated version of AutoVue Document Print Service offerings, which include the ability to select CAD layers for printing  For further details, check out the What’s New in AutoVue 20.2 datasheet

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  • Issue in understanding how to compare performance of classifier using ROC

    - by user1214586
    I am trying to demystify pattern recognition techniques and understood few of them. I am trying to design a classifier M. A gesture is classified based on the hamming distance between the sample time series y and the training time series x. The result of the classifier are probabilistic values. There are 3 classes/categories with labels A,B,C which classifies hand gestures where there are 100 samples for each class which are to be classified (single feature and data length=100). The data are different time series (x coordinate vs time). The training set is used to assign probabilities indicating which gesture has occured how many times. So,out of 10 training samples if gesture A appeared 6 times then probability that a gesture falls under category A is P(A)=0.6 similarly P(B)=0.3 and P(C)=0.1 Now, I am trying to compare the performance of this classifier with Bayes classifier, K-NN, Principal component analysis (PCA) and Neural Network. On what basis,parameter and method should I do it if I consider ROC or cross validate since the features for my classifier are the probabilistic values for the ROC plot hence what shall be the features for k-nn,bayes classification and PCA? Is there a code for it which will be useful. What should be the value of k is there are 3 classes of gestures? Please help. I am in a fix.

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  • CodePlex Daily Summary for Wednesday, October 09, 2013

    CodePlex Daily Summary for Wednesday, October 09, 2013Popular ReleasesxFunc: xFunc 2.7.3: Fixed memory leak. Small fixes.SmartStore.NET - Free ASP.NET MVC Ecommerce Shopping Cart Solution: SmartStore.NET 1.2.0: HighlightsMulti-store support "Trusted Shops" plugins Highly improved SmartStore.biz Importer plugin Add custom HTML content to pages Performance optimization New FeaturesMulti-store-support: now multiple stores can be managed within a single application instance (e.g. for building different catalogs, brands, landing pages etc.) Added 3 new Trusted Shops plugins: Seal, Buyer Protection, Store Reviews Added Display as HTML Widget to CMS Topics (store owner now can add arbitrary HT...Wrangle for Windows: Wrangle Beta 0.1.0.6: + Various Bugs Fixes + Notification are now available + Many small features added - Does not contain user profiles yet - Conclusions not available yetAD ACL Scanner: 1.3: New features:Effective rights, select a security principal and match it agains the permissions in AD. Color coded permissions based on criticality when using effective rights scan. Search levels : Base, One Level, Subtree. List you domains and select one from the list. Get the size of the security descriptor (bytes). Rerporting on disabled inheritance . Better search functianlity; you can use wildcards on Trustee. Get all inherited permissions in report.MoreTerra (Terraria World Viewer): MoreTerra 1.11.2: Release 1.11.2 Full 1.2 Support =========== =Bug Fixes= =========== We have all markers solsund made sure the tile and background colors are correct. (map looks correct with no missing pink) Added better error tracking for those having trouble.Fast YouTube Downloader: Youtube Downloader 2.1: Youtube Downloader 2.1MSCRM ToolKit: MSCRMToolKit 0.5.5: Increased MaxStringContextLength property in the Reference Data Transporter in response of the Issue: https://mscrmtoolkit.codeplex.com/workitem/1520NuGet: NuGet 2.7.1: Released October 07, 2013. Release notes: http://docs.nuget.org/docs/release-notes/nuget-2.7.1 Important note: After downloading the signed build of NuGet.exe, if you perform an update using the "nuget.exe update -self" command, it will revert back to the unsigned build.Mugen MVVM Toolkit: Mugen MVVM Toolkit 2.0: IntroductionMugen MVVM Toolkit makes it easier to develop Silverlight, WPF, WinRT and WP applications using the Model-View-ViewModel design pattern. The purpose of the toolkit is to provide a simple framework and set of tools for getting up to speed quickly with applications based on the MVVM design pattern. The core of Toolkit contains a navigation system, windows management system, models, validation, etc. Mugen MVVM Toolkit contains all the MVVM classes such as ViewModelBase, RelayCommand,...Office Ribbon Project (under active development): Ribbon (07. Oct. 2013): Fixed Scrollbar Bug if DropDown Button is bigger than screen Added Office 2013 Theme Fixed closing the Ribbon caused a null reference exception in the RibbonButton.Dispose if the DropDown was not created yet Fixed Memory leak fix (unhooked events after Dispose) Fixed ToolStrip Selected Text 2013 and 2007 for Blue and Standard themesGhostscript.NET: Ghostscript.NET v.1.1.0.: v.1.1.0. added GhostscriptViewer state handling (SaveState, RestoreState) GhostscriptRasterizer constructor is extended in order to support usage of the existing GhostscriptViewer instance. fixed problem while using a 32-bit assembly with 32-bit version of Ghostscript on 64-bit Windows: It couldn't find a registry key of installed Ghostscript. Reported and fixed by "r0land". v.1.0.9. implemented EPS (Encapsulated PostScript) support for the GhostscriptViewer. added GhostscriptRasterize...Ghostscript Studio: Ghostscript.Studio v.1.0.2: Ghostscript Studio is easy to use Ghostscript IDE, a tool that facilitates the use of the Ghostscript interpreter by providing you with a graphical interface for postscript editing and file conversions. Ghostscript Studio allows you to preview postscript files, edit the code and execute them in order to convert PDF documents and other formats. The program allows you to convert between PDF, Postscript, EPS, TIFF, JPG and PNG by using the Ghostscript.NET Processor. v.1.0.2. added custom -c s...cmdradio: v0.1.1 binary: Default download in win32. For other OS see here. This is alpha version. Please report all bugs.Squiggle - A free open source LAN Messenger: Squiggle 3.3 Alpha: Allow using environment variables in configuration file (history db connection string, download folder location, display name, group and message) Fix for history viewer to show the correct history entries History saved with UTC timestamp This is alpha release and not recommended for use in productionMedia Companion: Media Companion MC3.579b: Fixed IMDB actor scraping for Movies and TV. Note: there are a couple of new functions that are not active, as this release needed to be done due to IMDB change. New* TV - context menu for rescrapeing Poster image/Banner image Fixed* Both - Fixed actor scraping from IMDB * Movie - Fixed Tableview if Movie's movieset was not in MC's list of moviesets * Movie - Rename with mediainfo now lowercase. * Both - added ignore "A " in titles. Separate option in General Preferences. * Tv - Changing ...VidCoder: 1.5.7 Beta: Updated HandBrake core to SVN 4819. About dialog now pulls down HandBrake version from the DLL. Added a confirmation dialog to Stop if the encode has been going on for more than 5 minutes. Fixed handling of unicode characters for input and output filenames. We now encode to UTF-8 before passing to HandBrake. Fixed a crash in the queue multiple titles dialog. Added code to rescue tool windows which get placed outside of the visible screen area.Wsus Package Publisher: Release v1.3.1310.05: Enhance the "Reboot Remote Computers", by adding a timer before the reboot occure. So that remote users can save their documents and close applications. You can also add a message to be display. In 'Tools'->'Settings'-> Misc Tab, you can set a default message. Enhance the "Compare Computers against AD", by choosing OUs to include in the comparison.Pulse: Pulse 0.6.7.3: Pulse is now accepting donations. To donate by Bitcoin or PayPal see https://pulse.codeplex.com/wikipage?title=Donations Lots of updates in v0.6.7.3: (Feature) New option allows you to disable wallpaper changing when a full screen application is running. This way Pulse doesn't slow down/lag your videos and games :) (Fix) Some users were getting Wallbase errors when logging in. This has been fixed. (Feature) Right click a provider and you can now make a copy of it by selecting the "Dupl...VG-Ripper & PG-Ripper: PG-Ripper 1.4.19: NEW: Added Option to login as Guest NEW: Added Menu Option to delete an Forum Account NEW: Added Support for "ImageTeam.org links FIXED: Fixed Ripping of http://forum.babeunion.com ForumsSimpleExcelReportMaker: Serm 0.03: SourceCode and Sample .Net Framework 3.5 AnyCPU compile.New ProjectsA library of helpers to augment InfoPath code behind development.: A library providing useful helpers to augment and speed up deveopment of complex InfoPath forms requiring code behind.A Simple Online Document Management System Using Asp.net MVC 3: A system to manage documents on-line.ASP.NET Testing: ASP.NET testingAutoSPUpdater: Automated Updating for SharePoint Server 2010/2013Currency Calculator for Microsoft Dynamics AX: The Currency calculator is a tool for calculating amounts between currencies which uses the rates as setup in the Exchange rates of Microsoft Dynamics AX.Daystate Configuration Manager: To be filled later.Djikstra's Algorithm SGGW: It's university student project presenting Djikstra algorithm usage in finding the shortest path between two points in single graph.eCommMongo: eCommMongoFast YouTube Downloader: Fast Youtube Downloader downloads video from YouTube. You could choose different video formats and qualities, and download multiple videos at the same time.FirebirdWars: Firebird Wars online strategy game.FlowSimulation: ???????????? ????????????? ???????????? ?????????Guild Wars 2 VALORUS Command and Control System: The VALORUS Command and Control System is a tool to help track and manage large numbers of people on Guild Wars 2. Useful for WvW and Guild Missions.IntelliCommand: Visual Studio Extension. Helps to remember shortcut keys. This extension is supported for Visual Studio 2010/2012/2013... Professional and higher.myonlyle: gaoOnline War Game: aOracle Portal to SharePoint Migration Scripts: These scripts will assit you in moving from Oracle Portal 10g to SharePoint!OrderingPlatform: OrderingPlatform ?? ??PSEncrypt: Powershell cmdlets to do common encryption\decryption stuffReorderListBox: ReorderListBox is an enhancement to the standard ListBox control for Windows Phone apps that allows users to drag-and-drop list items to reorder the list.SampleTileAnimation: The Windows store application targets to create a Image to appear as a tile and Animate it using StoryBoard feature using C# /Xaml code. SharePoint Friends: Open source SharePoint app library projectSharing memory between user and kernel mode processes- WinCE 6/WEC7/2013: This is a sample driver that explain how to share a block of memory between Kernel mode driver and user mode application in Windows CE 6.0/ WEC7 and WEC2013.SharpHadoop: SharpHadoop facilitates access to WebHDFS from .Net. The library can easily be dependencies and solely relies on the .net standard library Features: 1) UploaSSRS Admin Tasks: Admin GUI Tool for SQL Server Reporting ServicesTimeWatcher: TimeWatcher is an application allowing you keep track of the time passed on tasks, even across multiple working sessions. A good tool for developers who need toTinyMIS: TinyMistmask: tmaskVitaliyPianykhStuff: Here I'll publish handy code snippets.World Simulator: Will the universe expand or will it collapse? Hundreds of experts are about to discuss this question and this program was designed to give an answer... :-)WSccTravel: This is the project created during class WScc 2013

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  • Exchange 2013 Virtual Machine: Backup just mailboxes and clear logs

    - by Ben Curtis
    I have a Windows Server 2012 machine running Exchange 2013 running as a KVM virtual machine. For my VM guests, I do full image based backups from the host, so that I can quickly restore to any host server simply by copying over the disk image files. This means I don't need a nightly full system backup. That being said, without running a VSS Full Backup, the Exchange logs get massive (Specifically, the performance logs which are 500MB a day). In addition, I would also like to have a nightly backup of just the mail database. What is the best way to accomplish this? A full backup of the C:\Program Files\Microsoft\Exchange Server\V15 folder as I found in one tutorial did not clear out the logs. Thanks, Ben

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  • Getting codebaseHQ SVN ChangeLog data in your application

    - by saifkhan
    I deploy apps via ClickOnce. After each deployment we have to review the changes made and send out an email to the users with the changes. What I decided now to do is to use CodebaseHQ’s API to access a project’s SVN repository and display the commit notes so some users who download new updates can check what was changed or updated in an app. This saves a heck of a lot of time, especially when your apps are in beta and you are making several changes daily based on feedback. You can read up on their API here Here is a sample on how to access the Repositories API from a windows app Public Sub GetLog() If String.IsNullOrEmpty(_url) Then Exit Sub Dim answer As String = String.Empty Dim myReq As HttpWebRequest = WebRequest.Create(_url) With myReq .Headers.Add("Authorization", String.Format("Basic {0}", Convert.ToBase64String(Encoding.ASCII.GetBytes("username:password")))) .ContentType = "application/xml" .Accept = "application/xml" .Method = "POST" End With Try Using response As HttpWebResponse = myReq.GetResponse() Using sr As New System.IO.StreamReader(response.GetResponseStream()) answer = sr.ReadToEnd() Dim doc As XDocument = XDocument.Parse(answer) Dim commits = From commit In doc.Descendants("commit") _ Select Message = commit.Element("message").Value, _ AuthorName = commit.Element("author-name").Value, _ AuthoredDate = DateTime.Parse(commit.Element("authored-at").Value).Date grdLogData.BeginUpdate() grdLogData.DataSource = commits.ToList() grdLogData.EndUpdate() End Using End Using Catch ex As Exception MsgBox(ex.Message) End Try End Sub

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  • SQLAuthority News – NuoDB MeetUp on Nov 8, 2012 in Seattle

    - by pinaldave
    I am pleased to let you know that I will be attending again this year’s SQLPASS conference in Seattle and look forward to meeting all of you while at the conference. In the next two weeks, I will provide you with a full agenda of where I will be during PASS. During the week, I will also be stopping by at the NuoDB MeetUp, which will be held close by at the Edge Grill at 1522 6th Ave in Seattle on Thursday, November 8th. This will be an excellent opportunity for you to learn more about their brand new distributed, peer-to-peer database solution, which I believe will revolutionize SQL cloud database technology in the 21th century.  I have been personally following NuoDB for months now and am very excited about the architecture and capabilities of this innovative product. Wiqar Chaudry, NuoDB technology evangelist, will give a presentation and demonstration of their elastically scalable SQL cloud database in this Meetup event.  Prior to joining NuoDB, Wiqar was a Senior Architect at Epsilon, the data intelligence company with big brand name customers in insurance, consumer goods, etc.  He’s also going to discuss how NuoDB compares with Azure, the hometown favorite, and why cloud-based SQL deployment will pave the way for the future. I will be at the NuoDB MeetUp to briefly talk about my own experiences with NuoDB and will be giving away some signed copies of my latest book as well will have some interesting goodies. So please join me and the NuoDB team at their Meetup event. RSVP here. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology Tagged: NuoDB

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  • Oracle eAM Webcast Series Announced (May-Dec 2010)

    - by [email protected]
    A series of free webinars with ReliabilityWeb will present key product capabilitiesof Oracle eAM and how they support maintenance and reliability best practices. Through this web-seminar series,companies can understand how to achieve better ROI. ReliabilityWeb will be using this as a key component of their initiative tobuild a stronger Oracle community.  For Oracle this program demonstrates leadership and commitment to the Maintenance SystemsMarketplace. Topics: (note all times are EAST)1. How can Oracle eAM enhance and support your reliability program? (May 13,2010) (1-2PM - all times East)) 2. Upgrading to Oracle eAM R12  - What's the value, when's the right time,what's involved and how do you get there? (June 17, 2010) (1-2PM) 3. Improving maintenance and reliability by aligning people, processes andsystems. (July 15, 2010) (1-2PM) 4. Using Oracle eAM to drive your Condition Based Maintenance program. (July29, 2010) (1-2PM) 5. Why and how do you get the power of Oracle eAM out to the people that arereally doing maintenance the technicians. (August 12, 2010) (1-2PM) 6. Standardizing and streamlining your maintenance work with Oracle eAM.(September 16, 2010 (1-2PM) 7. Standardizing maintenance and reliability data - How do you get there?(October 21, 2010 (1-2PM) 8. Using Oracle eAM to establish a Failure Reporting and Corrective ActionSystems (FRACAS). (November 18, 2010) (1-2PM)9. Maintenance Work Scheduling in Oracle eAM - Capabilities and Limitations(December 16, 2010) (1-2PM)to Register:   <http://img.gotomeeting.com/g2mimages/1x1.gif> <http://www1.gotomeeting.com/g2w/images/298420256/73664767535782300/embed.jpg>For additional information contact Jay West, EAM Master,+1.205.515.4326            

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  • Is unit testing development or testing?

    - by Rubio
    I had a discussion with a testing manager about the role of unit and integration testing. She requested that developers report what they have unit and integration tested and how. My perspective is that unit and integration testing are part of the development process, not the testing process. Beyond semantics what I mean is that unit and integration tests should not be included in the testing reports and systems testers should not be concerned about them. My reasoning is based on two things. Unit and integration tests are planned and performed against an interface and a contract, always. Regardless of whether you use formalized contracts you still test what e.g. a method is supposed to do, i.e. a contract. In integration testing you test the interface between two distinct modules. The interface and the contract determine when the test passes. But you always test a limited part of the whole system. Systems testing on the other hand is planned and performed against the system specifications. The spec determines when the test passes. I don't see any value in communicating the breadth and depth of unit and integration tests to the (systems) tester. Suppose I write a report that lists what kind of unit tests are performed on a particular business layer class. What is he/she supposed to take away from that? Judging what should and shouldn't be tested from that is a false conclusion because the system may still not function the way the specs require even though all unit and integration tests pass. This might seem like useless academic discussion but if you work in a strictly formal environment as I do, it's actually important in determining how we do things. Anyway, am I totally wrong? (Sorry for the long post.)

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  • Creating a GTK theme, but Qt and Java apps are not affected, and title bar button layout is ugly

    - by Mr. Pixel
    I'm playing with a gtk2 / gtk3 theme which I use in the Mate desktop. Everything is looking well, even gtk3 apps, but I still have 3 important issues: Java apps ignore the theme QT apps ignore the theme I'm using those nice ubuntu 10 title bar buttons, but the problem is, when only the close button appears, the title bar looks ugly. Can I make it so that it shows the two other buttons, but disabled? I don't know how Ubuntu 10 handled this. Here's a screenshot showing the 3 problems (above is a small java app, below is a Qt app): Under my previous desktop environments, Unity and Cinnamon, both apps seemed to be taking the right theme correctly, but I did not use my custom theme yet. Cinnamon is based on gnome-shell by the way, and mate is a gnome2-fork. Please note that the shown java app explicitely tries to load the gtk theme at runtime. By default, java apps don't, but this one has the necessary code, which worked in unity and cinnamon. Any suggestions how I could make my theme better so these problems disappear? Thank you very much!

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  • Simple, user friendly and strong file encryption in Windows

    - by Adam Matan
    I want a colleague of mine to send me a sensitive MS-Word document via e-mail. Since Word's encryption is questionable, I would like to encrypt the file using a passphrase. Do you know of any user-friendly encryption tool that a novice user can easily use? I wouldn't like to prompt for keys or anything like this - just provide simple interface for single file encryption. EDIT: I have solved this using Putty Secure Copy, through a Linux box I have somewhere. The user downloaded scp to the same directory where the file was, and I have send him the exact scp command by mail. Nice! Another Edit I have some additions (mainly the usage of winscp and perhaps virtual machines). My detailed answer appears below, as requested in comments.

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  • Hide email adress with JavaScript

    - by Martin Aleksander
    I read somewhere that hiding email address behind JavaScript code, could reduce spam bots harvesting the email address. <script language="javascript" type="text/javascript"> var a = "Red"; var t = "no"; var doc = document; var b = "ITpro"; var ad = a; ad += "@"; ad += b; ad += "."; ad += t; var mt = "ma"; mt += "il"; mt += "to"; var text = ""; if (text == null || text.length == 0) text = ad; doc.write("<"+"a hr"+"ef=\""+mt+":"+ad+"\">"+text+"</"+"a>"); </script> This will not display the actual email-address in the sourcecode of the page, but it will display and work like a normal link for human users. Is it any point of doing this? Will it reduce spam bots, or is it just nonsense that might slow down performance of the page because of the JavaScript?

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  • Early Z culling - Ogre

    - by teodron
    This question is concerned with how one can enable this "pixel filter" to work within an Ogre based app. Simply put, one can write two passes, the first without writing any colour values to the frame buffer lighting off colour_write off shading flat The second pass is the one that employs heavy pixel shader computations, hence it would be really nice to get rid of those hidden surface patches and not process them pixel-wise. This approach works, except for one thing: objects with alpha, such as billboard trees suffer in a peculiar way - from one side, they seem to capture the sky/background within their alpha region and ignore other trees/houses behind them, while viewed from the other side, they exhibit the desired behavior. To tackle the issue, I thought I could write a custom vertex shader in the first pass and offset the projected Z component of the vertex a little further away from its actual position, so that in the second pass there is a need to recompute correctly the pixels of the objects closest to the camera. This doesn't work at all, all surfaces are processed in the pixel shader and there is no performance gain. So, if anyone has done a similar trick with Ogre and alpha objects, kindly please help.

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  • Beta Soon Closing: Java SE 7 Programmer I (OCA) Exam

    - by Harold Green
    Just a reminder that you still have the next several weeks to take the beta exam for the new "Oracle Certified Associate, Java SE 7 Programmer" certification. From now through December 16th, you can take the "Java SE 7 Programmer I" exam (1Z1-803) for only $50 USD. Not only that, but because this only a single-exam certification - passing it puts you among the very first certified on the new Java SE 7 platform! You'll be happy to note that we worked hard to raise the bar for OCA as we built the Java SE 7 certification. The content that we considered to be more ‘conceptual knowledge-based' has been eliminated in the OCA level and has been replaced with far more practical content - what we often call "practitioner-level" concepts and questions. In fact, some of the topics that we previously covered at the Oracle Certified Professional (OCP) level is now covered at the OCA level. Doing this not only increases the value of the Java SE 7 OCA certification, but also has provided the opportunity for us to broaden the topics, concepts, questions covered at the OCP certification level. All of this adds up to more value and credibility to those who get certified on Java SE 7. The OCA exam doesn’t have prerequisites. But it is very important that you carefully review the test objectives on the exam page and assess your current skills and knowledge against that list to be sure that you're ready. From the exam page you can register to take the exam at a Pearson VUE testing center near you.Below are some helpful details on the certification track and exam. Again, register now - just a few weeks left at the special low beta price! QUICK LINKS: Certification Track: Oracle Certified Associate (OCA), Java SE 7 Programmer Certification Exam: Java SE 7 Programmer I (1Z1-803) Video: Coming Soon - Java SE 7 Certification Info: About Beta Exams Exam Registration: Instructions | Register Here

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  • Dell R910 with Integrated PERC H700 Adapter

    - by Alex
    I am in the process of designing an architecture based around a single Dell R910 server running Windows Server 2008 Enterprise. I would like the server to have 8 RAID1 pairs of spinning disks, so I intend to implement: Dell R910 Server Integrated PERC H700 Adapter with 1 SAS expander on each SAS connector (so 8 expanders in total) 7 RAID1 pairs of 143Gb 15K HDD, each paired on one connector using an expander 1 RAID1 pair of 600Gb 10K HDD, paired on the remaining connector using an expander My main concern is not to introduce bottlenecks in this architecture, and I have the following questions. Will the PERC H700 Adapter act as a bottleneck for disk access? Will using SAS expanders for each RAID1 pair cause a bottleneck or would this be as fast as pairing disks directly attached to the SAS connectors? Can I mix the disks, as long as the disks in each RAID1 pair are the same? I assume so. Can anyone recommend any single-to-double SAS Expanders that are known to function well with the H700? Cheers Alex

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  • Problem with Jumbo Frames

    - by Spookyone
    Hello, I am trying to set up jumbo frames on my gigabit home LAN but no luck so far. My setup is: * D-Link DIR-655 router, HW Revision A3, Firmware 1.21 EU * Synology DS107+, Firmware 3.0-1337 * Laptop w/ Win7 x64, external PCIx NIC managed by "Generic Marvel Yukon 88E8053 based Ethernet Controller" The router is supposed to support jumbo frames but doesn't feature any relevant setting. I set the Jumbo Packet value to 9000 on both the NIC and the Synobox but it doesn't work, ping -f -l 8972 says "Packet needs to be fragmented but DF set". Is there any other setting I overlooked, the DIR-655 doesn't actually support jumbo frames, or what else could be the problem?

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  • bash and arithmetic comparison: double quotes or not?

    - by Martin
    when comparing two integers in bash, do we have to put double quotes ? In the official document http://tldp.org/LDP/abs/html/comparison-ops.html I can read that double quotes should appear every time... But what is the differences in the following examples: [ "$VAR" -eq "1" ] [ $VAR -eq "1" ] [ "$VAR" -eq 1 ] [ $VAR -eq 1 ] As I am curious, a took a look at Ubuntu init scripts in /etc/init.d and there are many usage of arithmetic comparison in it, at least [ "$VAR" -eq "1" ] and [ $VAR -eq 1 ] are used... but it seems no one really "knows" what is the official way to do it. Thanks !

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  • Is there a way to allow administrators to change or reset user passwords?

    - by Jon Seigel
    We have a custom MembershipProvider implementation using form-based authentication (FBA) under Sharepoint 2007. I've searched high and low on Google, but only found: Active directory and FBA implementations to allow users to change their own password Active directory instructions (including video!) for administrators to change other users' passwords Have we missed an option to enable the latter under FBA? Should this work by default and is the MembershipProvider misbehaving? The procedure to do this as under active directory would be ideal, but the "Change Password" link does not appear in the Edit User screen. We verified that the logged-in user is a site collection administrator.

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  • Performance issues with visibility detection and object transparency

    - by maul
    I'm working on a 3d game that has a view similar to classic isometric games (diablo, etc.). One of the things I'm trying to implement is the effect of turning walls transparent when the player walks behind them. By itself this is not a huge issue, but I'm having trouble determining which walls should be transparent exactly. I can't use a circle or square mask. There are a lot of cases where the wall piece at the same (relative) position has different visibility depending on the surrounding area. With the help of a friend I came up with this algorithm: Create a grid around the player that contains a lot of "visibility points" (my game is semi tile-based so I create one point for every tile on the grid) - the size of the square's side is close to the radius where I make objects transparent. I found 6x6 to be a good value, so that's 36 visibility points total. For every visibility point on the grid, check if that point is in the player's line of sight. For every visibility point that is in the LOS, cast a ray from the camera to that point and mark all objects the ray hits as transparent. This algorithm works - not perfectly, but only requires some tuning - however this is very slow. As you can see, it requries 36 ray casts minimum, but most of the time 60-70 depending on the position. That's simply too much for the CPU. Is there a better way to do this? I'm using Unity 3D but I'm not looking for an engine-specific solution.

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  • Octree implementation for fustrum culling

    - by Manvis
    I'm learning modern (=3.1) OpenGL by coding a 3D turn based strategy game, using C++. The maps are composed of 100x90 3D hexagon tiles that range from 50 to 600 tris (20 different types) + any player units on those tiles. My current rendering technique involves sorting meshes by shaders they use (minimizing state changes) and then calling glDrawElementsInstanced() for drawing. Still get solid 16.6 ms/frame on my GTX 560Ti machine but the game struggles (45.45 ms/frame) on an old 8600GT card. I'm certain that using an octree and fustrum culling will help me here, but I have a few questions before I start implementing it: Is it OK for an octree node to have multiple meshes in it (e.g. can a soldier and the hex tile he's standing on end up in the same octree node)? How is one supposed to treat changes in object postion (e.g. several units are moving 3 hexes down)? I can't seem to find good a explanation on how to do it. As I've noticed, soting meshes by shaders is a really good way to save GPU. If I put node contents into, let's say, std::list and sort it before rendering, do you think I would gain any performance, or would it just create overhead on CPU's end? I know that this sounds like early optimization and implementing + testing would be the best way to find out, but perhaps someone knows from experience?

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  • Dynamic/Adaptive RLE

    - by Lucius
    So, I'm developing a 2D, tile based game and a map maker thingy - all in Java. The problem is that recently I've been having some memory issues when about 4 maps are loaded. Each one of these maps are composed of 128x128 tiles and have 4 layers (for details and stuff). I already spent a good amount of time searching for solutions and the best thing I found was run-length enconding (RLE). It seems easy enough to use with static data, but is there a way to use it with data that is constantly changing, without a big drop in performance? In my maps, supposing I'm compressing the columns, I would have 128 rows, each with some amount of data (hopefully less than it would be without RLE). Whenever I change a tile, that whole row would have to be checked and I'm affraid that would slow down too much the production (and I'm in a somewhat tight schedule). Well, worst case scenario I work on each map individually, and save them using RLE, but it would be really nice if I could avoind that. EDIT: What I'm currently using to store the data for the tiles is a 2D array of HashMaps that use the layer as key and store the id of the tile in that position - like this: private HashMap< Integer, Integer [][]

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  • How can I configure Firefox to assume I have less memory?

    - by WoLpH
    Firefox has a few different settings that automatically get tuned based on the system ram. This is all great if you're running nothing besides Firefox, but when you're running half a dozen apps at the same time and they all assume that they can take a decent chunk of mem it just kills the box. Example settings: http://kb.mozillazine.org/Browser.sessionhistory.max_total_viewers http://kb.mozillazine.org/Browser.cache.memory.capacity How can I make Firefox automatically configure all these settings with the assumption that I only have 512MB of memory instead of 4GB (or whatever number, but you get the idea). I am running Ubuntu 12.04 with Firefox 14 Current workarounds: Running a Windows XP virtual machine with 512MB of ram. It actually runs smooth and takes less memory (including Windows) to run than having Firefox (or Chrome for that matter) run standalone. Install the 32 bit version of Firefox By installing the 32 bit version of firefox (apt-get install firefox:i386) the base memory usage is only about 50% of what it is with the 64 bit.

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