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• Implementing lighting similar as in CubeWorld

  - by Phito

  I am currently writing a voxel engine and my goal is to achieve something looking like CubeWorld. The problem that I am encountering is about lighting. I don't have a lot of knowledge in OpenGL but I don't think lighting in a game like that should be done with glLight. But beside that I have no idea of how to implement it. Here's what I have for the moment (with glLight): Do you have any ideas/link that could give me an idea of how to achieve that? Thanks

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• Assembly as a First Programming Language?

  - by Anto

  How good of an idea do you think it would be to teach people Assembly (some variant) as a first programming language? It would take a lot more effort than learning for instance Java or Python, but one would have good understanding of the machine more or less from "programming day one" (compared to many higher level languages, at least). What do you think? Is it a realistic idea, at least to those who are ready to make the extra effort? Advantages and disadvantages? Note: I'm no teacher, just curious

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• Coming back from (blog) retirement

  - by leo.pasta

  So, it has been more than 3 years without a single blog post. I wished I could have a decent excuse for it, but in the end, I guess it boils down to laziness and procrastination. :-) Even though I learned a lot in that period (and added a feel tricks to my bag), I couldn’t find the will to sit down and write. I hope all my readers (yes mom and dad, I’m talking to you) have not been disappointed. I will try really hard not to let routine take over. I don’t expect I will be the most active blogger in the community, but hopefully a couple of posts per month is a good target to aim.

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• Is HTML5 more secure to develop for than Silverlight?

  - by King Chan

  I'm learning Silverlight, and I know that if I master it, I can apply the same concepts to WPF, which means I can do either web or desktop development pretty easily. But I've read articles and followed the discussion online, and I understand HTML5 is gaining traction for being cross-platform, and a lot of people seem to be moving to HTML5. From my understanding, any HTML5 application would be built with HTML and JavaScript (or Flash). But is it secure? It seems like anyone can easily use their browser's "view source" option and grab your code. Is this something I should be worried about, or is there a way to protect against it?

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• Browser window size statistics?

  - by Litso

  I was wondering, are there any statistics available on what size users have their browser set to nowadays? I know the screen resolutions (we have analytics, which shows those as well) but I doubt a lot of people with 1280*xxx and higher still browse full-screen though. My boss is determined to keep our website 900px wide though, because that way people with 1800*xxx resolutions can have two browser windows next to eachother without having to scroll horizontally. I have never seen anyone browse with two adjacent browser windows like that except here at my current job, so I'm kind of doubting whether this is the best decision or just his personal preference. Anyone that can help out here?

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• Android opengles 2.0 :different resolutions rendering and input

  - by kkan

  I'm currently developing a sprite based 2D game for android using opengles 2.0. I've got some basic rendering done that mimics the spritebatch functionality of xna (draw sprite, rotation, color). But all of this works for a fixed projection matrix, but android has a lot of screen sizes. Q1)Would this be an okay method to scale up/down the drawing? 1)Draw the whole screen to a texture. 2)Draw the above texture as a quad to the device. I found the above through some searching, not sure if it's the best one, are there any alternatives? Q2)How do you handle inputs for different resolutions? I currently get the position of a touch and use it raw. Would it be okay to get the position, and then scale the position to size of the texture used for rendering, and the perform calculations on it? Thanks.

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• Microsoft Office Programmability Delivers for Consultants Customers

  I’ve talked with with many dozens of customers here at TechEd 2010 about Office 2010 and shown them a lot of demos at the kiosk. As they arrive I hand them a www.iheartmacros.com t-shirt (hugely popular, btw). Very often the response is: “This is great. I actually do love macros and VBA”. I’m not surprised. In the following 2 minute video clip I talk with Mike Corkery, a consultant and IT trainer who specializes in Office development and training. He mentions how a relatively...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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• Using AWS or Azure, what to do about emails?

  - by Paul

  I'm coming from a background of paying a hosting company X amount per month for a server. This server comes with IIS, WebsitePanel and Smartermail all bundled together. When I create a new domain using WebsitePanel it automatically creates my email account. All I then need to do is configure my DNS to point to the server. I've decided that it is more cost efficient to move to AWS / Azure. Has anyone come from a similar background and moved onto a cloud system? I'd be interested to know what you did regarding emails. So far, these are the suggestions I've seen: Use Google Apps for each domain Use something like Elastic Email to sent out emails Launch a new instance and host an email server on that The first option seems like quite a lot of manual configuration, the second one works good with outgoing emails but what about receiving? Option 3 would make it less cost effective. What is your experience?

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• How to manage a growing team?

  - by Andra

  I'm the admin assistant of the CTO and our organization has recently experienced a lot of growth. Within six months, we have merged with another organization and our Dev team has grown from 8 to 16, with another 8 people in QA. What we're dealing with now is a highly technical individual, with little patience, managing a much larger team than he's accustomed to, 40% of which is junior as well as an increase in the number of projects. Needless to say, my boss is being pulled in too many directions at once. How can I help him manage his workload and his team so that the team feels they're getting enough help and support and remain effective? Also, where can I find additional resources on managing a growing team?

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• Revamp application

  - by Rauf

  I am a software developer having an experience of 3 yrs. I want to play with latest technologies always. But this is not practical. Because say, I developed a web application in .Net 3.5, now its 30% done. After the release of .Net 4.0, my mind is always goes with .Net 4.0. I think like this, lot of features are in new version, so why shouln't I implement those versions in my application. When I worked with IT companies, most of them code with very old versions, some body use VB.NET, C, even Classic ASP. So what might be the points should I consider if I revamp an application?

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• Resources for creating a turn-by-turn navigation system

  - by benwad

  I'm trying to create a kind of turn-by-turn satellite navigation system using the iOS SDK. I get the directions from the server and draw them on the map, then I keep getting location updates from the iPhone's GPS chip. Currently I start by finding the nearest turning point then, each time the user comes within a certain distance of the next turning point, a verbal cue is given and the turning point index is incremented. This is a delicate system and I'd like to make it more robust so I can tell when the user is going the wrong direction etc. Basically I'm looking for some literature about turn-by-turn navigation, in terms of tracking the user's progress and whether they're going the right direction. I'd have thought there's a lot of research out there but I can't seem to find anything apart from simple tutorials on how to use a given SDK or directions API. Can anyone direct me to a good run-through of the various techniques used in software such as TomTom or Google Maps Navigation?

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• Flash site loads slowly

  - by bogdanvursu

  I have a simple html page that embeds an swf, that downloads other xml, swf and image files. The total count of the requests reaches about 90. I am aware that it should take a while until the content is available and I am OK with that. All the needed files are hosted by two different providers in the US: flashxml.net/monochrome-demo.html and u1.flashcomponents.net/samples/8751/index.html From two different countries in Europe, the content shows up a lot later (almost twice as later) from flashxml, than flashcomponents. I've done mtr tests and the ping difference is about 40ms and the flashxml server load is below 1. Do you have any other suggestions as to what should I look at?

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• What's an acceptable "Avg. Page Load Time"?

  - by hawbsl

  Is there any industry rule of thumb for what's considered an unacceptable load time v. an OK one v. a blistering fast one? We're just reviewing some Google Analytics data and getting 0.74 Avg. Page Load Time reported. I guess that's OK. However it would be good if some meatier comparison data were available, or a blog post, or somewhere where there's some analysis of what speeds are generally being achieved by various kinds of sites. Any useful links to help someone interpret these speeds? If you Google it you just get a lot of results dealing with how to improve your speed. We're not at that stage yet.

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• SSIS Basics: Using the Execute SQL Task to Generate Result Sets

  The Execute SQL Task of SSIS is extraordinarily useful, but it can cause a lot of difficulty for developers learning SSIS, or only using it occasionally. What it needed, we felt, was a clear step-by-step guide that showed the basics of how to use it effectively. Annette Allen has once again cleared the fog of confusion. NEW! Take the stress out of .NET deploymentEliminate the risk in deploying manually to live systems using Deployment Manager, the new tool from Red Gate. Try it now.

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• Preparing yourself for Code challenges

  - by Daniel Fath

  Just a few days ago I discovered Codility, and I tried their challenges. And I must say. I got my behind handed to me on a platter. I'm not sure what the problem was, but I'll lick my wounds and wait for the solution to come out and compare it with my own. In the meantime, I want to get ready for the next challenge so I'm reading their previous blog posts and seeing how to solve their previous problems. There are a lot of new things I haven't heard about like (Cartesian trees, various sort algorithms, etc.) So, how does one prepare for such challenges (especially the O(x) time and space complexity). What should I read to prepare for such a task?

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• Restoring Grub after Kubuntu installation

  - by justquestions

  I installed Kubuntu on top of my existing Ubuntu 12.04 (64 bit) installation. During Kubuntu installation, I chose lightdm as my default display manager (instead of kdm). Now after rebooting, the Grub has a new color (gray instead of default purplish) and the screen while booting is gray (instead of purplish). I am curious if it is possible to change this grub behavior without removing Kubuntu. I did find a lot of discussion about modifying grub themes but they were not very useful because I do not know what is the default unity grub theme. I did reinstall grub but it didn't change anything. I tried the Grub Customizer but couldn't succeed. Thanks in advance!

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• Animations / OpenGL (ES 2) in game menu

  - by user16547

  (I am specifically asking for Android) If you look at Angry Birds (and in fact many other games), you can already see a lot of animations & effects going in the main menu and in other places even before starting to play. I assume they are done with OpenGL, more precisely a FrameLayout is used and inside it a GLSurfaceView is somewhere at the bottom of the hierarchy; above the GLSurfaceView you have regular Android buttons and texts. Is this how it's done*? Also would you reuse the same GLSurfaceView when running the actual game or should another one be created? *I am aware an alternative approach would be to make absolutely everything in OpenGL. Of these two I prefer the FrameLayout one, but I don't know whether other developers agree.

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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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• Programming jobs for a science based degree [on hold]

  - by clairharrison

  I am currently in my last year of a Masters in Physics at Uni and I am looking to go into a job that is mainly programming based. As part of my course we have learnt C++, Matlab and as a hobby I taught myself HTML, CSS, JAVA and a bit of JavaScript. After getting to this stage in my degree I've realised that its actually the programming side of Physics that I enjoy most. I've been working on a few Android apps & websites in my spare time but only things that utilize what I know in JAVA, HTML etc. Using Physics in programming is good fun but I don't want to limit myself just to Physics based jobs. I just want to know a few things: What kind of jobs can I apply for that would require the kind of skills I already posses/can work towards possessing in a year Can I compete with graduates who have had a lot more programming in their course for example Computer Science? Are there any specific extra things I need on my CV before I start applying for these jobs?

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• Recommend hosting with fast MySQL database please.

  - by Keith Groben

  I am frustrated to no end with my current hosting provider, mediaTemple. Yes, they are flashy, and have some decent degree of flexibility with their GS plan, which I have. But anytime I install a site that needs a database, it is slow. like really slow. Taking anywhere from 10 - 15 seconds just to load a page. I would host in house, but there are a lot of complications that come with a LAMP server that I don't want to deal with. Honestly, I'd rather spend the time developing. What can you recommend?

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• What is the right approach to use adsense with responsive web design?

  - by Sisir

  Recently I was studying responsive design a lot and designed couple of sites. But i was wondering how would I use google adsense (which is pixel based) ads on my responsive design? Very typical example is suppose I have a 728x90 ads on header. Or if i do a mobile first approach i would need different versions of ad sizes for different view posts but google doesn't allow more than three ad unit per page (as far as i know). So, Question: What is the right approach/best practice of using google adsense on a responsive site design?

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• Topics for covering in-depth programming knowledge

  - by black_belt

  I pursued my bachelors' degree in business administration, but my interest in Information Technology led me to acquire some knowledge of PHP programming and MySQL database. I find programming so interesting that I haven't applied for any job since my graduation. Currently I am staying home and just trying to acquire in-depth knowledge of PHP programming. So far I have developed couple of websites and web applications including Inventory+ Point of Sale Software and an Accounting system for small organizations. I aim to have knowledge that a Computer Science graduate should have, and for that I want to read books but I have no idea where to start from. Could you please suggest me some books and topics that I should study on? Thanks a lot :)

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• Ubuntu 12.04 crashes on startup for newer versions of Linux, possibly related to WiFi

  - by Jake

  My computer gets to the screen with the Ubuntu logo and the orange/white dots, and then the screen goes black, spits out a lot of error messages, and cannot boot. (If it'd be helpful, I can take a photo of my screen in this state.) I've found I can successfully boot if my wireless card is turned off. As soon as I turn it on, my computer crashes with the same black screen of death. I can also successfully boot if I choose "Previous Linux Version" and select a few versions back (I think 3.0.6). Here are some relevant details about my setup: Ubuntu 12.04 Computer: Lenovo x230 Wireless: Realtek RTL8188CE 802.11b/g/n WiFi Adapter Processor: Intel Core i5-3210M CPU @ 2.50GHz × 4 RAM: 16 GB of RAM Thank you!!!

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• Good practices when writing a parser for a standard file format (such as ePub)

  - by J-F L-R

  I am considering writing an Android reader software that can read ePubs and display them. I checked the ePub standard documents. However, these contain a lot of information. So I am wondering what is the process of implementing a standard for a file format. What are the steps to get a working implementation without passing by parts of the standard? Are there any best practices? Also, is it even possible to program this alone in a reasonable time? From what I have already found out, ePub is basically a zip archive. That means I could probably use zlib to decompress it. The content is in XHTML and CSS, so I believe it should be possible to display it in a WebView. The parts that are missing are writing the code that can read the metadata and manage the non-standard XHTML extensions.

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• What classes are useful for an aspiring software developer? [closed]

  - by Anonymouse

  I'm a freshman in college trying to graduate in 3 years with a Math/CS dual major, and I don't have a lot of time to be fooling around with useless classes. I've tested out of most of my gen eds and science-y courses, but I need to know: what math and cs courses are most important for someone interested in algorithm development? Math courses already taken: Calc I-III,Linear Algebra, Discrete Math. CS courses taken: Java. Math courses I'm planning to take: ODE, Linear Algebra II, Vector calc, Logic, (Analysis or Algebra), Stats, probability CS courses I'm planning to take: C(required), Data Structures, Numerical Methods, Intro to Analysis of Algorithms. Which is better, analysis or algebra? Did I take enough CS courses? Am I missing out on anything? Thanks.

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