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  • Renderbuffer to GLSL shader?

    - by Dan
    I have a software that performs volume rendering through a raycasting approach. The actual raycasting shader writes the raycasted volume depth into a framebuffer object, through gl_FragDepth, that I bind before calling the shader. The problem I have is that I would like to use this depth in another shader that I call later on. I figured out that the only way to do that is to bind the framebuffer once the raycasting has finished, read the depthmap through something like glReadPixels(0, 0, m_winSize.x , m_winSize.y, GL_DEPTH_COMPONENT, GL_FLOAT, pixels); and write it to a 2D texture as usual glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT24, m_winSize.x, m_winSize.y, 0, GL_DEPTH_COMPONENT, GL_FLOAT, pixels) and then pass this 2D texture that contains a simple depth map to the other shader. However, I am not entirely sure that what I do is the proper way to do this. Is there anyway to pass the framebuffer that I fill up in my raycasting shader to the other shader?

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  • SDL to SFML simple question

    - by ultifinitus
    Hey! I've been working on a game in c++ for about a week and a half, and I've been using SDL. However, my current engine only needs the following from whatever library I use: enable double buffering load an image from path into something that I can apply to the screen apply an image to the screen with a certain x,y enable transparency on an image (possibly) image clipping, for sprite sheets. I am fairly sure that SFML has all of this functionality, I'm just not positive. Will someone confirm my suspicions? Also I have one or two questions regarding SFML itself. Do I have to do anything to enable hardware accelerated rendering? How quick is SFML at blending alpha values? (sorry for the less than intelligent question!)

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  • "My stuff" vs. "Your stuff" in UI texts

    - by JD Isaacks
    When refering to a users stuff should you use My or Your, for example: My Cart | My Account | My Wishlist Or Your Cart | Your Account | Your Wishlist I found this article that argues for the use of your. It says flikr does this. It also says MySpace and MyYahoo are wrong. I also noticed today that Amazon uses the term Your. However, I have heard they are the masters at testing variations and finding the best one, so what you see on their site might be the best variation, or simply something they are currently testing. I personally like the way my looks better, but thats just my opinion. What do you think? What will hever the better impact on customers? Does it really even matter?

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  • How to be a responsible early adopter?

    - by Gaurav
    A disconcertingly high number of new technologies/paradigms are overhyped (as is evident from replies to this question). Combine this with the fact that being early adopter is inherently risky. This makes evaluation of technology before adoption critical. So how exactly early adopters among you go about it. I can think of following general criteria. For early adoption technology must address previously unaddressed issue and/or For acceptance beyond early adoption technology should address performance One indicator that something is not right is when there is too much of jargon for technology which is either irrelevant or there is no evidence to back it up What is your opinion. Update: 4. BTW, the biggest reason to fear technology is when it is imposed by the tech-unaware management based entirely on number of buzzwords.

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  • Under an Xampp install, I modify the apache httpd-vhosts.conf file and then my Apache server will not start

    - by eLLIOT
    I have read all the articles but still must be doing something wrong... I modified the httpd-vhosts.conf file to access the project I am working on... I have tried many different configurations and none work. My apache service will not start (I am on Windows 7)... any ideas would be helpful - here is the code I added to the conf file: DocumentRoot "C:/xampp/htdocs" ServerName localhost DocumentRoot C:/xampp/htdocs/socengv1" ServerName socengv1.local I have also tried this with NameVirtualHost *:80 command with no difference to note.

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  • Top ten things that don't make sense in The Walking Dead

    - by iamjames
    For those of you that don't know, The Walking Dead is a popular American TV show on AMC about a group of people trying to survive in a zombie-filled world.Here's the top ten eleven things that don't make sense on the show (and have never been explained) 1)  They never visit stores.  No Walmarts, Kmarts, Targets, shopping malls, pawn shops, gas stations, etc.  You'd think that would be the first place you'd visit for supplies, but they never have.  Not once.  There was a tiny corner store they visited in a small town, and while many products were already gone they did find several useful items.  2)  They never raid houses.  Why not?  One would imagine that they would want to search houses for useful items, but they don't.3)  They don't use 2 way radios.  Modern 2-way radios have a 36-mile range.  That's probably best possible range, but even if the range is only 10% of that, 3.6 miles, that's still more than enough for most situations, for the occasional "hey zombies attacking can you give me a hand?" or "there's zombies walking by stay inside until they leave" or "remember to pick up milk at the store love mom".  And yes they would need batteries or recharging, but they have been using gas-powered generators on the show and I'm sure a car charger would work.4)  They use gas-guzzling vehicles.  Every vehicle they have is from the 80s or 90s except for the new Kia SUV there for product placement.  Why?  They should all be driving new small SUVs or hybrids.  Visit a dealership and steal more fuel-efficient vehicles, because while the Walmart's might be empty from people raiding them for supplies, I'm sure most people weren't thinking "Gee, I should go car shopping" when the infection hit5)  They drive a motorcycle.  Seriously?  Let's find the least protective vehicle and drive that.  And while motorcycles get reasonable gas mileage, 5 people in a SUV gets better gas mileage per person than 5 people all driving motorcycles so it doesn't make economical sense either.6)  They drive loud vehicles.  The motorcycle used is commonly referred to as a chopper and is about as loud as a motorcycle can get.  The zombies are attracted to loud noise, so wouldn't it make more sense to drive vehicles that makes less sound?  Because as soon as you stop the bike and get off you're surrounded by zombies that heard you coming.  And it's not just the bike, the ~1980s Chevy SUV in the show is also very loud.7)  They never run out of food.  Seems like that would be a almost daily struggle, keeping enough food available for about a dozen people, yet I've never seen them visit a grocery store or local convenience store to stock up.8)  They don't carry swords, machetes, clubs, etc.  Let's face it, biting is not a very effective means of attack.  It's good for animals because they have fangs and little else, but humans have been finding better ways of killing each other since forever.  So why doesn't everyone on the show carry a sword or machete or at least a baseball bat?  Anything is better than wasting valuable bullets all the time.  Sure, dozen zombies approaching?  Shoot them.  One zombie approaching?  Save the bullet, cut off it's head.  9)  They do not wear protective clothing.  Human teeth are not exactly the sharpest teeth in the animal kingdom.  The leather shoes your dog ripped to shreds within minutes would probably take you days to bite through.  So why do they walk around half-naked?  Yes I know it's hot in Atlanta, but you'd think they'd at least have some tough leather coats or something for protection.  Maybe put a few small vent holes in the fabric if it's really hot.  Or better:  make your own chainmail.  Chainmail was used for thousands of years for protection from swords and is still used by scuba divers for protection from sharks.  If swords and sharks can't puncture it, human teeth don't stand a chance.  10)  They don't build barricades or dig trenches around properties.  In Season 2 they stayed at a farm in the middle of no where.  While being far away from people is a great way to stay far away from zombies, it would still make sense to build some sort of defenses.  Hordes of zombies would knock down almost any fence, but what about a trench or moat?  Maybe something not too wide so it can be jumped over easily but a zombie would fall into because I haven't seen too many jumping zombies on the show.  11)  They don't live in a mall or tall office building.  A mall would be perfect.  They have large security gates designed to keep even hundreds of people from breaking in and offer lots of supplies and food.  They're usually hundreds of thousands of square feet and fully enclosed, one could probably live their entire life happily in a mall.  Tall office building with on-site cafeteria would be another good choice.  They also usually offer good security and office furniture could be pushed out of the windows to crush approaching zombies, and the cafeteria is usually stocked to provide food for hundreds or thousands of office workers so food wouldn't be a problem for a long time. So there you have it, eleven things that don't make sense in The Walking Dead.  Have any of your own you'd like to add or were one of these things covered in the show?  Let me know in the comments.

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  • Any good, easy to learn from books or tutorials for learning assembly? [on hold]

    - by pythonian29033
    I've been a developer since 2009 and I've learnt a lot of languages since, but I've always wanted to understand and be able to code in the lowest level language so I can directly (or at least very close to directly) speak to machines through my code. There was a point in time when someone showed me how to do an if statement in assembly, but out of all the books that I got, I could never really understand where/how to start learning to code in assembler. any help please? I'm obsessed with learning this! PS: if you have any software suggestions, I use ubuntu and am looking to convert to backtrack soon, so it would be preferred if you could give me something that'll be easily installed on debian linux, otherwise don't sweat it, give me the name of the windows software and I'll find an equivalent myself

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  • Do people in non-English-speaking countries code in English?

    - by Damovisa
    With over 100 answers to this question it's highly likely that your answer has already been posted. Please don't post an answer unless you have something new to say I've heard it said (by coworkers) that everyone "codes in English" regardless of where they're from. I find that difficult to believe, however I wouldn't be surprised if, for most programming languages, the supported character set is relatively narrow. Have you ever worked in a country where English is not the primary language? If so, what did their code look like? Edit: Code samples would be great, by the way...

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  • SQL Server PowerShell Provider And PowerShell Version 2 Get-Command Issue

    - by BuckWoody
    The other day I blogged that the version of the SQL Server PowerShell provider (sqlps) follows the version of PowerShell. That’s all goodness, but it has appeared to cause an issue for PowerShell 2.0. the Get-Command PowerShell command-let returns an error (Object reference not set to an instance of an object) if you are using PowerShell 2.0 and sqlps – it’s a known bug, and I’m happy to report that it is fixed in SP2 for SQL Server 2008 – something that will released soon. You can read more about this issue here: http://connect.microsoft.com/SQLServer/feedback/details/484732/sqlps-and-powershell-v2-issues Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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  • how to resize an encrypted logical volume?

    - by Nirmik
    I installed Ubuntu with encryption and LVM on my entire haddisk... Now I want to resize it. How do I do This... Following this link gave me errors on step 2 - How to resize a LVM partition? error ubuntu@ubuntu:~$ sudo e2fsck -f /dev/sda5 e2fsck 1.42.5 (29-Jul-2012) ext2fs_open2: Bad magic number in super-block e2fsck: Superblock invalid, trying backup blocks... e2fsck: Bad magic number in super-block while trying to open /dev/sda5 The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 what do I do?

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  • Easy user management on html site?

    - by James Buldon
    I hope I'm not asking a question for which the answer is obvious...If I am, apologies. Within my html site (i.e. not Wordpress, Joomla, etc.) I want to be able to have a level of user management. That means that some pages I want to be only accessible to certain people with the correct username and password. What's the best way to do this? Are there any available scripts out there? I guess I'm looking for a free/open source version of something like this: http://www.webassist.com/php-scripts-and-solutions/user-registration/

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  • Firefox is pounding my system what should I do

    - by nikhil
    I'm running the latest version of firefox 17.0.1 on ubuntu 12.10 on a Acer Aspire One 722 Netbook. It has an amd dual core C60 processor and 2GB RAM. As you can see, firefox is absolutely killing my system, it responds really slowly and opening tabs is a royal pain. I have on an average 4-5 open tabs at a given time. Is there something that I can do to make my browsing experience more zippy? Additionally I run the following addons Firebug HTTPS Everywhere Ad block plus

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  • A good interpreted language for a small embedded project

    - by Earlz
    I have an mbed which has a small ARM Cortex M3 on it. Basically, my effective resources for the project are ~25Kb of RAM and ~400Kb of Flash. For I/O I'll have a PS/2 keyboard, a VGA framebuffer(with character output), and an SD card for saving/loading programs(up to a couple of Mb maybe) The reason I ask this here is because I'm trying to figure out what programming language to implement on the thing. I'm looking for an interpreted language that's easy for me to implement, and won't break the bank on my resources. I also intend for this to be at least possible to write on th device itself, though the editor can be interpreted(yay bootstrapping) Anyway, I've looked at a few simple languages. Some nice candidates: Forth BASIC Scheme? Has anyone done something like this or know of any languages that can fit this bill or have comments about my three candidates so far?

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  • Apache Server SSL Problems

    - by Kid XD
    Hi There is this weird problem going on with putting ssl on the server I keep on getting this error in the terminal after I already created the .key and .crt files but it keeps on saying I placed the files in the conf.d directory and I already configured the thing so there is something that I did wrong there I also used openssl to create a .key and the .crt files thanks for the help if anyone can service apache2 reload Syntax error on line 1 of /etc/apache2/conf.d/www.domainname.crt Invalid command '-----BEGIN', perhaps misspelled or defined by a module not included in the server configuration Action 'conftest' failed. The Apache error log may have more information. ...fail!

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  • Code Review process

    - by Rubio
    I'm looking for a light-weight code review process. A couple of requirements, the reviewer must be able to do the review alone at the time of his/her choosing (not tied to check-ins), the reviewer must be able to easily find the target code, the review has to leave some document showing what was reviewed. I know there are tools available for code review but I work in a very ridig environment and introducing new tools is not an option. One idea I've been thinking about is to create a new Visual Studio Task List token called REVIEW, and use it to mark the code that needs reviewing. Something like, // REVIEW doe_john: New method, not sure about the exception. Then we would add a Review workitem in TFS (we're using the CMM template). Another possibility, which I would actually prefer, would be to have developers create a TFS Review workitem and add links to code to it, but I don't know if this is possible. Obviously you can add a link to a file, but I'd like to have a link to a particular method.

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  • Video recording in cheese is slow

    - by Gaurav Butola
    cheese records at painful fps. video recording is really slow in cheese almost unusable. How can I increase the fps for cheese. I have HCL laptop with built in 1.3 MP camera 2.47 GHz i3 processor with 2 GB RAM. running maverick 32 bit. I installed camorama from software centre which has fine video (fps), but I cant seem to use it due to some error. So I doubt there is something to be tweaked with cheese itself.

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  • Sony steps back from Linux?

    - by EmbeddedInsider
    In Cnet today I saw something interesting: According to Sony, it plans to release PlayStation 3 firmware version 3.21 on Thursday to achieve one goal: eliminate the "Other OS" option currently available in all pre-Slim models of the video game console. The feature allowed PS3 owners to install an operating system--in almost every case, Linux--onto the PlayStation 3. No surprise. l  Sony is a company heavily invested with legacy IP (games, all that music and Blueray).  They know that content can be nowhere near the GPL. http://news.cnet.com/8301-13506_3-10471356-17.html?tag=rtcol;pop

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  • Why has C prevailed over Pascal?

    - by Konrad Morawski
    My understanding is that in the 1980s and perhaps in the 1990s, too - Pascal and C were pretty much head-to-head as production languages. Is the ultimate demise of Pascal only due to Borland's neglection of Delphi? Or was there more of such bad luck; or perhaps something inherently wrong with Pascal (any hopes for its revival?). I hope it's not an open, unanswerable question. I'm interested in historical facts and observations one can back up, rather than likes and dislikes. I also failed to find a duplicate question, which actually surprised me somewhat.

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  • Oneiric desktop looks seriously defect after updates

    - by Matthijs
    Probably a coincidence, but after applying the fix to How to get the proper LightDM theme? and running the latest batch of updates, my desktop suddenly looked like this after rebooting: Funny thing is, it seems to be account specific, as my girlfriend's account seems unaffected. I can't logout because the whole entry is missing on the top right. Rebooting doesn't solve the issue. System settings (when run from the launcher) lacks a whole lot of icons and changeing the theme doesn't solve the problem (only changes the window top bar). I'm going to try the solution in How do I fix my theme? first, but if that doesn't work (likely, since I seem to have a slightly bigger problem than the one in that question) I'd love something else to try (other than creating a new account).

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  • Does TOR protect privacy of bittorrent clients like Transmission?

    - by rocky
    I am using the Tor bundle and its included browser to initiate torrent downloads with the Transmission client included with Lubuntu. Clicking on a torrent link provides a warning message that external apps are NOT protected by Tor and clicking ok results in normal Transmission start and it begins the download. I have seen assertions in another post answer that Tor starts Transmission using a different profile than the normal $HOME/.config/transmission. However, I see no evidence of the referenced different profile on my system ( $HOME/tor-browser_en-US/.config/transmission). The normal privacy settings provided within Transmission seem inadequate for privacy according to what I have read. Has something changed in how Tor bundle browser (firefox) interacts with supporting apps like Transmission. Tor bundle otherwise seems to be operating correctly. I asked the question in the post but it was deleted by moderator for some reason not given

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  • What software development process should I learn first for a solo project?

    - by Omar Kohl
    I want to develop a project on my own (if it is sucessful more people might start working on it too). Also I want to apply some proper software engineering from the first until the last day. On one hand just to try it out and compare results with previous projects that were just about writing code quick and dirty, and on the other hand to learn! I know the proper answer to this question is "It depends very much on the project...", "There is no single correct answer...". But I just need someplace to start, somewhere where every step is written down and tells me what to do. If I'm not happy next time I'll try something else. So, how/where should I start? I would love to hear some book suggestions cause I'm all about books :-D.

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  • Designing binary operations(AND, OR, NOT) in graphs DB's like neo4j

    - by Nicholas
    I'm trying to create a recipe website using a graph database, specifically neo4j using spring-data-neo4j, to try and see what can be done in Graph Databases. My model so far is: (Chef)-[HAS_INGREDIENT]->(Ingredient) (Chef)-[HAS_VALUE]->(Value) (Ingredient)-[HAS_INGREDIENT_VALUE]->(Value) (Recipe)-[REQUIRES_INGREDIENT]->(Ingredient) (Recipe)-[REQUIRES_VALUE]->(Value) I have this set up so I can do things like have the "chef" enter ingredients they have on hand, and suggest recipes, as well as suggest recipes that are close matches, but missing one ingredient. Some recipes can get complex, utilizing AND, OR, and NOT type logic, something like (Milk AND (Butter OR spread OR (vegetable oil OR olive oil))) and I'm wondering if it would be sane to model this in a graph using a tree type representation? An example of what I was thinking is to create three "node" types of AND, OR, and NOT and have each of them connect to the nodes value underneath. How else might this be represented in a Graph Database or is my example above a decent representation?

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  • Where should I draw the line between unit tests and integration tests? Should they be separate?

    - by Earlz
    I have a small MVC framework I've been working on. It's code base definitely isn't big, but it's not longer just a couple of classes. I finally decided to take the plunge and start writing tests for it(yes, I know I should've been doing that all along, but it's API was super unstable up until now) Anyway, my plan is to make it extremely easy to test, including integration tests. An example integration test would go something along these lines: Fake HTTP request object - MVC framework - HTTP response object - check the response is correct Because this is all doable without any state or special tools(browser automation etc), I could actually do this with ease with regular unit test frameworks(I use NUnit). Now the big question. Where exactly should I draw the line between unit tests and integration tests? Should I only test one class at a time(as much as possible) with unit tests? Also, should integration tests be placed in the same testing project as my unit testing project?

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  • Install squid3 + and eCAP module

    - by Hacker
    I want to install squid3 and eCAP module on my latest ubuntu. Squid installed well with command i followed these instructions. http://e-healthexpert.org/node/431 sudo apt-get install squid3 but how do i configure it to enable eCAP module ?. I need to give something like --enable-ecap option while installation, which i could not. Then i tried to manually install using http://code.google.com/p/squid-ecap-gzip/source/browse/wiki/Installation.wiki?r=24 but while installing squid3 it gives error. i.e. command sudo make gives some g++ error. SO how do i install it and configure for eCAP. please h

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  • Scrum: How to work on one story at a time

    - by Juergen
    I was nominated as scrum master in a new formed scrum team. We have already done some sprints. In the beginning I tried to make my team to work on one story at a time. But it didn't work. My team had difficulties to distribute the tasks in a way that they can work simultaneously on one story. Maybe we are doing something wrong? For example: we have a story to create a new dialog. We create the following tasks: Create Model classes Read model data from database Connect model classes with view Implement dialog handling Save data on close Test Documentation Solution Description Can theses tasks be done by more than one person at a time? The tasks - more or less - build upon each other. Or do we design the tasks in a wrong way?

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