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• Drawing flaming letters in 3d on OpenGL ES 2.0

  - by Chiquis

  I am a bit confused about how to achieve this. What i want is to "draw with flames". I have achieved this with textures successfully, but now my concern is about doing this with particles to achieve the flaming effect. Am I supposed to have a Path in where i should add many particle emitters along the path that will "be emitting flames"? I understand the concept for 2d, but for 3d are the particles (that are quads) always supposed to be facing the user? Edit: Something else im worried about is the performance hit that will occur by having that many particle emitters, because there can be many letters and drawings at the same time. And each of these elements will have many particle emitters.

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• How to devise instruction set of a stack based machine?

  - by Anindya Chatterjee

  Stack based virtual machines like CLR and JVM has different set of instructions. Is there any theory behind devising the instruction set while creating a virtual machine? e.g. there are JVM instruction sets to load constants from 0-5 onto the stack iconst_0 iconst_1 iconst_2 iconst_3 iconst_4 iconst_5 whereas in CLR there are instruction set to load number from 0 to 8 onto the stack as follows ldc.i4.0 ldc.i4.1 ldc.i4.2 ldc.i4.3 ldc.i4.4 ldc.i4.5 ldc.i4.6 ldc.i4.7 ldc.i4.8 why there is no ldc.i4.9 and if ldc.i4 is there why we need the above opcodes? And there are others like these. I am eager to know what is the reason behind this difference between opcodes of different VMs? Is there any specific theory to devise these opcodes or it is totally driven by the characteristics of the VM itself or depends on the high-level language constructs?

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• Another Linq to SQL product, Enzo Multitenant Framework

  - by Ed Gnatiuk

  An open source library and full product have been developed for transparently splitting large tables across several databases for performance, similar to database table partitioning.  It is all handled along with the Linq to SQL framework, and looks pretty slick, I will be reviewing the product shortly.  It looks mostly transparent to the developer!  There are other capabilites worth a look.  This looks like it works for azure as well. Here are some links:  http://enzosqlshard.codeplex.com/   http://enzosqlbaseline.com    https://scale.bluesyntax.net   I will be reviewing this and other Linq to SQL libraries soon.

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• Significant number of non-HTTP requests hitting my site

  - by Mark Westling

  I'm seeing a significant number of non-HTTP requests hitting a site I just launched. They show up in the server (nginx) logs as non-ASCII and get rejected (correctly) with a 400 status. Here are some lines from the log: 95.132.198.189 - - [09/Jan/2011:13:53:30 -0500] "œ$A\x10õœ²É9J" 400 173 "-" "-" 79.100.145.126 - - [09/Jan/2011:13:57:42 -0500] "#§i²¸oYi á¹„\x13VJ—x·—œ\x04N \x1DÔvbÛè½\x10§¬\x1E0œ_^¼+\x09ÜÅ\x08DÌÃiJeT€¿æ]œr\x1EëîyIÐ/ßýúê5Ǹ" 400 173 "-" "-" 79.100.145.126 - - [09/Jan/2011:13:58:33 -0500] "¯Ú%ø=Œ›D@\x12¼\x1C†ÄÀe\x015mˆàd˜Û%pÛÿ" 400 173 "-" "-" What should I make of this? Is this some sort of scripted attack? Or could these be correct requests that have somehow been garbled? They're not affecting the performance of the site and I'm not seeing any other signs of attacks (e.g., no strange POSTs) so at this point I'm more curious than afraid.

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• Partner Webcast – Oracle Coherence Applications on WebLogic 12c Grid - 21st Nov 2013

  - by Roxana Babiciu

  Oracle Coherence is the industry leading in-memory data grid solution that enables organizations to predictably scale mission-critical applications by providing fast access to frequently used data. As data volumes and customer expectations increase, driven by the “internet of things”, social, mobile, cloud and always-connected devices, so does the need to handle more data in real-time, offload over-burdened shared data services and provide availability guarantees.The latest release of Oracle Coherence 12c comes with great improvements in ease of use, integration and RASP (Reliability, Availability, Scalability, and Performance) areas. In addition it features an innovating approach to build and deploy Coherence Application as an integral part of typical JEE Enterprise Application.Read more here

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• What is an effective way to organize tasks for a new project?

  - by Dulan

  Is there a practical solution to organizing the initial tasks for a new project? To elaborate, imagine the features/stories/goals are laid out for a project. How might one go about organizing those into sane tasks for the first few versions? The scenario I typically have in mind has the features listed as a high-level reference for what the end user-experience should involve. The tasks for constructing such features are then broken down into chunks (such as "create interface for X component"). Such a task is not necessarily "tied" to only that feature and may be useful when building subsequent features. Is breaking features down into small, code-able solutions valid? Or should they be slightly removed from any specific implementation? I do not expect that there is one "right" answer to this question, but I am looking for a fairly pragmatic and unobtrusive approach. As a note, I'm looking for solutions that are independent of any tools or "systems" used for managing the tasks themselves.

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• S&OP best practices that can help your organization be more responsive and effective

  - by user717691

  If you want to increase revenue by quickly responding to market changes or want to ensure that your operating plans drive towards corporate financial goals, you need real-time sales and operations planning.Watch the replay of our recent Webcast to hear Christopher Neff from NCR Corporation discuss how NCR Corporation is leveraging Oracle's Real-Time Sales and Operations Planning solutions. Learn best practices that can help your organization be more responsive and effective. Discover how Oracle's comprehensive suite of best-in-class capabilities can: Synchronize plans and actions across the extended enterprise Maximize profits with the ability to sense, influence, and fulfill demand with industry leading demand management and real-time sales & operations Drive tactical decisions into operational planning and execution, while monitoring performance Profitably balance supply, demand, and budgets Move planning processes from periodic and reactive to real-time, iterative and proactive Register now for the on demand Webcast! http://www.oracle.com/webapps/dialogue/ns/dlgwelcome.jsp?p_ext=Y&p_dlg_id=8664804&src=6811174&Act=99NCR Corporation is a leader in Self Service Solution such as POS Solutions, Payment and Imaging Systems.

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• ArchBeat Link-o-Rama for November 7, 2012

  - by Bob Rhubart

  Updated Business Activity Monitoring (BAM) Class | @OracleSOA Oracle SOA Team blogger Gary Barg has news for those interested in a skills upgrade. This updated Oracle University course "explains how to use Oracle BAM to monitor enterprise business activities across an enterprise in real time. You can measure your key performance indicators (KPIs), determine whether you are meeting service-level agreements (SLAs), and take corrective action in real time." Oracle Solaris 11.1 update focuses on database integration, cloud | @markfontecchio TechTarget editor Mark Fontecchio reports on the recent Oracle Solaris 11.1 release, with comments from IDC's Al Gillen. Thought for the Day "Why is composing symphonies tough? I don't know. It's just very few people in the world can do it well. And I think that's the case with upfront design. It is very hard to do well." — Martin Fowler Source: SoftwareQuotes.com

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• How to connect to the internet via command line or graphical utility given I can't click at the top of the screen?

  - by Ben

  My Ubuntu 12.04 installation has an input problem resulting preventing me from clicking near the top of the screen. That is, there is an unclickable area, circa 60 pixels high and stretching all the way across the screen. I will ask about this in a later question. For now, I would just like to be able to connect to the internet, given this limitation. I am able to access the network connections application by hitting the super key and typing "network connections". There is a LAN and a wireless network available. The network icon in the bar at the top of the screen shows an empty wedge, which I suppose means that wireless is off. I've attached the cable for the Ethernet connection, but it does not seem to have connected automatically. How can I figure out what's going on? (I'll happily edit in the output of any relevant terminal commands.) Thank you.

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• Where to start for writing a simple java IDE?

  - by AedonEtLIRA

  I would like to start working on my own custom IDE. The biggest reason I want to work on the IDE is to help me gain an even greater, more intimate understanding of java (and other languages I add into it.) I don't want to do anything super fancy or revolutionary, I'd be happy if I could create something as compact as the BlueJ IDE I used in high school and be content. I have a few question on the specifics of the task that I hope I can get cleared up before I start investing time in this: Is there anything I should be aware of when writing the parser? Does anyone have any pointers that I should be aware of; pitfalls, brick walls or other constraints?

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• Is it a bad practice to include all the enums in one file and use it in multiple classes?

  - by Bugster

  I'm an aspiring game developer, I work on occasional indie games, and for a while I've been doing something which seemed like a bad practice at first, but I really want to get an answer from some experienced programmers here. Let's say I have a file called enumList.h where I declare all the enums I want to use in my game: // enumList.h enum materials_t { WOOD, STONE, ETC }; enum entity_t { PLAYER, MONSTER }; enum map_t { 2D, 3D }; // and so on. // Tile.h #include "enumList.h" #include <vector> class tile { // stuff }; The main idea is that I declare all enums in the game in 1 file, and then import that file when I need to use a certain enum from it, rather than declaring it in the file where I need to use it. I do this because it makes things clean, I can access every enum in 1 place rather than having pages openned solely for accessing one enum. Is this a bad practice and can it affect performance in any way?

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• Unable to show correctly symbolic icons with appindicator

  - by user1502508

  I'm creating an app under Ubuntu 12.04 and using libappindicator and Vala. I want to use a symbolic icon, to ensure that the colors are adapted to the background in the status bar. Unfortunately, I'm unable to make it work. I installed my icons (which uses the BEBEBE key color) and they are shown, but the color is BEBEBE, not white or black like the other icons. I also tried to put an icon that I was sure to be symbolic (audio-volume-high-symbolic) but, again, it's shown with the original colors, instead of them being replaced by the current FG color. I used both set_icon and set_icon_full methods, but none of them worked :(

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• Why Java as a First Language?

  - by dsimcha

  Why is Java so popular as a first language to teach beginners? To me it seems like a terrible choice: It's statically typed. Static typing isn't useful unless you care a lot about either performance or scaling to large projects. It requires tons of boilerplate to get the simplest code up and running. Try explaining "Hello, world" to someone who's never programmed before. It only handles the middle levels of abstraction well and is single-paradigm, thus leaving out a lot of important concepts. You can't program at a very low level (pointers, manual memory management) or a very high level, (metaprogramming, macros) in it. In general, Java's biggest strength (i.e. the reason people use it despite the shortcomings of the language per se) is its libraries and tool support, which is probably the least important attribute for a beginner language. In fact, while useful in the real world these may negatives from a pedagogical perspective as they can discourage learning to write code from scratch.

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• Announcement: Oracle SuperCluster T5-8

  - by uwes

  Oracle's Fastest Engineered System On 27th of June we are announcing Oracle SuperCluster T5-8, Oracle’s fastest engineered system. Combining powerful virtualization and unique Exadata and Exalogic optimizations, SuperCluster is optimized to run both database and enterprise applications, and is ideal for consolidation and private cloud. SuperCluster is a complete system integrating SPARC T5-8 servers, Exadata Storage Servers, ZFS Storage Appliance, InfiniBand network and software, delivering extreme performance, no single point of failure, and highest efficiency while reducing risks and costs. Leverage Oracle SuperCluster T5-8 for IBM and HP competitive displacements, upgrading existing data centers, or new customer deployments. Please read the Product Bulletin on Oracle HW TRC for more details. (If you are not registered on Oracle HW TRC, click here ... and follow the instructions..) For More Information Go To: Oracle SuperCluster T5-8 oracle.com OTN

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• How to apply a filter to the screen of a running program?

  - by Shahbaz

  The idea is to take old games without modifying them, but have the graphics card apply a series of filters to their output before sending them to the monitor. A very crude example would be to take a game that has a resolution of 640x480 and do: Increase the resolution to 1280x960 Apply a blur (low pass filter) Apply a sharpen (1 + high pass filter) These steps may not necessarily be the best to improve the visuals of an old game, but there are a lot of techniques that are well-known in image processing for this purpose. The question is, do the (NVidia) graphics cards give the ability to load a program that modifies the screen before sending it to the monitor? If so, how are they called and what terminology should I use to search? I would be comfortable with doing the programming myself if this ability is part of a library. Also, would the solution be different between Windows and Linux? If so, either is fine, since most of the games are probably runnable by wine.

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• Windows Forms Development - Books

  - by Scott

  So I'm reading a book for architecting applications for the enterprise from the Microsoft Press. It's a great book, and I'm learning a lot. However, it's very high level, and can be applied to a lot of different domains (not even just .NET, even though that's how the book is geared). The first project I want to develop after reading the book is a Windows Forms application in .NET 4.0. I want to use a lot of the books concepts to develop the app, but I really want a great Windows Forms dedicated book to read before starting that's really going to tell me all I need to know about developing Windows Forms apps. I found plenty of books for .NET 2.0 and stuff, but nothing for Windows Forms in the new .NET 4.0 Framework. Any suggestions?

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• Proper password handling for login

  - by piers

  I have read a lot about PHP login security recently, but many questions on Stack Overflow regarding security are outdated. I understand bcrypt is one of the best ways of hashing passwords today. However, for my site, I believe sha512 will do very well, at least to begin with. (I mean bcrypt is for bigger sites, sites that require high security, right?) I´m also wonder about salting. Is it necessary for every password to have its own unique salt? Should I have one field for the salt and one for the password in my database table? What would be a decent salt today? Should I join the username together with the password and add a random word/letter/special character combination to it? Thanks for your help!

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• New! EBS CRM Service Request Templating Online

  - by Oracle_EBS

  In an effort to improve the user experience changes have been made to Service Request (SR) creation process using My Oracle Support (MOS). This change is now online for several high-use CRM products. We aimed to streamline the process by reducing the number of questions, making subsequent questions conditional on previous responses, reducing lists of problem categories, and recommending key documents/evidence which should be supplied to help the Support engineer progress the issue. The process is now divided into three steps: Problem - prompts for a summary of the issue, and what steps have to be performed to re-produce the issue More Information - users will see the biggest change, as they select the ‘Problem Type’, which then presents a series of suggested attachments to upload Severity/Contact - section records who to contact, by what means, and the degree of urgency for the issue. The products included are: · Incentive Compensation · Trade Management · Site Hub · Incentive Compensation Analytics for Oracle Data Integrator · TeleService · Install Base · Quoting · Sales · Field Service · Service Contracts

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• Any frameworks or library allow me to run large amount of concurrent jobs schedully?

  - by Yoga

  Are there any high level programming frameworks that allow me to run large amount of concurrent jobs schedully? e.g. I have 100K of urls need to check their uptime every 5 minutes Definitely I can write a program to handle this, but then I need to handle concurrency, queuing, error handling, system throttling, job distribution etc. Will there be a framework that I only focus on a particular job (i.e. the ping task) and the system will take care of the scaling and error handling for me? I am open to any language.

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• New Solaris 11 book available

  - by user12611852

  A new Solaris 11 book is now available.  Congratulations to my colleague in the Oracle Public Sector Hardware sales organization "Dr. Cloud" Harry Foxwell and his co-writers on publishing Oracle Solaris 11 System Administration The Complete Reference Table of contents 1 The Basics of Solaris 11 2 Prepare a System for Solaris3 Installation Options4 Alternative Installations for Enterprise5 The Solaris Graphical Desktop Environment6 The Service Management Facility7 Solaris Package Management "Image Packaging System"8 Solaris at the Command Line9 File systems and ZFS10 Customize the Solaris Shells11 Users and Groups HF12 Solaris 11 Security13 Basic System Performance Tuning14 Solaris Virtualization15 Print Management16 DNS and DHCP17 Mail Services18 Mgmt of Trusted Extensions19 The Network File System 20 The FTP Server21 Solaris and Samba 22 Apache and the Web Stack Buy one today

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• Visual Studio 2010 & .NET 4.0 RC in Feb-2010

  Scott says, In order to make sure that these fixes truly address the performance issues reported, and to Other Interested articles…27 New Features of .NET Framework 4.022 New Features of Visual Studio 2008 for .NET Professionals50 New Features of SQL Server 2008IIS 7.0 New featureshelp validate them across the broadest number of scenarios and machine configurations, we’ve decided to ship another public preview release of VS 2010 and .NET 4 before we ship. Specifically, we plan to make a Release Candidate build available in February that everyone will be able to download and test. It will be a public build and include a broad “go live” license that supports production deployment.The goal behind the Release Candidate is to get broad feedback on the readiness of the product. In order to ensure that we are able to receive and react to this feedback, we will also be moving the launch of Visual Studio 2010 and .NET 4 back a few weeks.Continue span.fullpost {display:none;}

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• Video: Analyzing Big Data using Oracle R Enterprise

  - by Sherry LaMonica

  Learn how Oracle R Enterprise is used to generate new insight and new value to business, answering not only what happened, but why it happened. View this YouTube Oracle Channel video overview describing how analyzing big data using Oracle R Enterprise is different from other analytics tools at Oracle. Oracle R Enterprise (ORE),  a component of the Oracle Advanced Analytics Option, couples the wealth of analytics packages in R with the performance, scalability, and security of Oracle Database. ORE executes base R functions transparently on database data without having to pull data from Oracle Database. As an embedded component of the database, Oracle R Enterprise can run your R script and open source packages via embedded R where the database manages the data served to the R engine and user-controlled data parallelism. The result is faster and more secure access to data. ORE also works with the full suite of in-database analytics, providing integrated results to the analyst.

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• Introduction to JBatch

  - by reza_rahman

  It seems batch processing is moving more and more into the realm of the Java developer. In recognition of this fact, JBatch (aka Java Batch, JSR 352, Batch Applications for the Java Platform) was added to Java EE 7. In a recent article JBatch specification lead Chris Vignola of IBM provides a high level overview of the API. He discusses the core concepts/motivation, the Job Specification Language, the reader-processor-writer pattern, job operator, job repository, chunking, packaging, partitions, split/flow and the like. You can also check out the official specification yourself or try things out with the newly released Java EE 7 SDK.

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• How to fix slow wireless with Intel 4965 AGN? [closed]

  - by mikewhatever

  Possible Duplicate: Slow wireless with an Intel 4965 We run Ubuntu 12.04, 32bit, with the current kernel 3.2.27-generic on an MSI EX700. I've already added the 11n_disable=1 tweek, without whcih, wireless has been unusable. Now, it works OK, but speedtest shows: Windows XP - down 11.68mbps, up 2.07mbps Ubuntu 12.04 - down 2.06mbps up 2.0mbps We've disabled ipv6, tried static and dinamic IPs, tried both swcrypto=0 and swcrypto=1 options, none of whcih made any difference. The problem may be the symptom of high packet loss. For example, here's the output of iwconfig after booting and testing the speeds: wlan0 IEEE 802.11abg ESSID:"amu" Mode:Managed Frequency:2.462 GHz Access Point: 00:78:9E:FA:32:C8 Bit Rate=54 Mb/s Tx-Power=15 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off Link Quality=58/70 Signal level=-52 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:11 Invalid misc:3627 Missed beacon:0 I've posted a help request before with lots of technical info and outputs.

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• Searching for fast skeletal animation algorithm

  - by igf

  Is it theoretically possible to dynamicaly animate scene with 100-150 400 poly characters meshes on high-end GL ES 2.0 mobile devices or i definetley should use prerendered keyframe animation? Scene have only one light source and precalculated shadow maps. View from top like in Warcraft 3. No any other meshes or objects. 2d collision detecting between objects calculated via spatial hashing. It can be any other algorithm besides ragdoll, but it must supply fast and simple skeletal animation for frame with 100+ low poly meshes for each mesh. Any ideas?

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