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  • Changing the rendering resolution while maintaining the design layout

    - by Coyote
    I would like to increase the FPS of my project. Currently I would like to try reducing the resolution at which the scenes are rendered. Let's say I never want to draw more than 1280*720. What ever the real resolution is. How should I proceed? I tried pEGLView->setFrameSize(1280, 720); but only reduces the displayed size of the frame on screen (boxing). In my activity I tried setting the size of the "surface" but this seems to completely break the layout (as defined by setDesignResolutionSize). @Override public Cocos2dxGLSurfaceView onCreateView() { Cocos2dxGLSurfaceView surfaceView = new Cocos2dxGLSurfaceView(this); surfaceView.getHolder().setFixedSize(1280, 720); return surfaceView; } Is there a way to simply change the rendered

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  • Watch out for a trailing slash on $ORACLE_HOME

    - by user12620111
    Watch out for a trailing slash on $ORACLE_HOME oracle$ export ORACLE_HOME=/u01/app/11.2.0.3/grid/ oracle$ ORACLE_SID=+ASM1 oracle$ sqlplus / as sysasm SQL*Plus: Release 11.2.0.3.0 Production on Thu Mar 29 13:04:01 2012 Copyright (c) 1982, 2011, Oracle.  All rights reserved. Connected to an idle instance. SQL> oracle$ export ORACLE_HOME=/u01/app/11.2.0.3/grid oracle$ ORACLE_SID=+ASM1 oracle$ sqlplus / as sysasm SQL*Plus: Release 11.2.0.3.0 Production on Thu Mar 29 13:04:44 2012 Copyright (c) 1982, 2011, Oracle.  All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Real Application Clusters and Automatic Storage Management options SQL>

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  • Html5 games, what is the standard dimension to use?

    - by aoi
    I am trying to make html5 games to be played on the browser(not offline apps), and I am trying to support the maximum number of platforms, hence I need to know what dimension should I use for the game canvas so that it works in the most number of places. Also is there anyway to "scale" a large game to fit in the tiny size of iphone(around 320x356px I think). By "scale" I don't mean to actually resize just the canvas, as because that can mess up the coordinate based calculations, and for a large number of objects, re-positioning based on canvas size can be a real hassle.

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  • Does anyone know of a simple (free?) feature request tracking system we could use internally for sales people?

    - by Ryan
    I sometimes hear about pain points of customers using our app from sales people, but there really isn't a good way for us to currently keep track of these. I was going to write one myself but figured I would ask first. I was thinking something so simple it would literally just be a small form for adding a new feature, and then it would appear in the list, like stackexchange questions. Then users can upvote them, or even record each time a user complains about something related to the request so we can order them in priority based on real data. Then I can easily go look every few days and see what's going on. That's really it, nothing more complicated than that. Know of anything?

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  • Gnome 3 freezes when switching workspaces

    - by Bill Cheatham
    I have found an odd problem with Gnome 3 on Ubuntu recently. Under certain circumstances, when switching between two workspaces the whole desktop and user interface will 'freeze' for anything up to 2 minutes; during this time I cannot click anything or interact using the keyboard. Often, the screen will show a 'half-completed' animation of the workspace swapper. This is on Ubuntu 12.04.1 running on a 2-year old Macbook Pro, and it only seems to occur when using an external monitor. This does not seem to be a processor or memory issue, and does not occur every time I switch workspaces. Is this a known problem? What can I do in the short or long term to fix it?

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  • How to disable password prompt for default keyring?

    - by user110431
    I'm using Ubuntu 12.10 64Bit. How to disable ubuntu enter password for keyring default to unlock prompt ? Every time I open Chrome or ubuntu software center, this annoying window jump out. I have being searching online for a long time, most of the answers are like delete ~/.gnome2/keyring XX , but I don't have such directory or go to password and keys , disable some option, but this window is empty in my case, very strange , even I add a new password keyring, it is still empty. None of these methods works in my case. I will be very appreciate if you can help

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  • How to convince a non-technical client that their application spec needs to be simplified?

    - by Ryan
    Often times I am faced with the situation where a new client comes to me with an application that has literally 100s of unnecessary features and it is quite clear that things need to be drastically simplified for the project to have any chance of succeeding. How do you convince the client to take a more MVP approach and simplify? edit: So the current top answer is to provide the client with a time/cost estimate for the huge application. I'm not too fond of this answer because it doesn't address the real problem with this situation. And that is - it's a bad practice to spec out a massive application and then try and build it from the get go. I feel much more comfortable initially building a small, simple MVP foundation. And then adding small features to that foundation one by one. So how do I convince the client to approach building software in this way?

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  • Ubuntu 14.04 + nvidia-331-updates makes a blank desktop screen

    - by Achint
    I upgraded my installation from 13.10 to 14.04. The problem is that whenever I install the Nvidia drivers from the GUI, upon reboot or trying to login again it only shows the wallpaper of my desktop and nothing else. The mouse does move around, but nothing works. I am unable to open a terminal or do anything else. If I go into the tty console and purge the drivers, then things seem to work again. I have an Optimus setup, with an onboard Intel and discrete Nvidia GTX770M card. It's a 64-bit architecture. I really need to work with CUDA, and was hopeful after hearing that nvidia-prime was released, but this is a real downer. Any help on this?

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  • Coherence on Exalogic: 6x Speeds on Half the Hardware is Possible

    - by jeckels
    Recently, Oracle Coherence released its 12c version, focused on scalability and real-time data delivery. As part of the launch, we showcased Coherence's tight coupling with Exalogic Elastic Cloud. By leveraging the Inifiniband Fabric in Exalogic, Coherence can now operate at up to 6x the speed on as little as half the hardware on an Exalogic box. This breakthrough is helping customers save money on their hardware costs while improving performance of their data grid. Here's a free resource available for you to explore this technology relationship further.For even more information on Coherence, attend our upcoming free virtual developer day on November 5th to see how developers can leverage Coherence in their everyday tasks.

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  • Given two sets of DNA, what does it take to computationally "grow" that person from a fertilised egg and see what they become? [closed]

    - by Nicholas Hill
    My question is essentially entirely in the title, but let me add some points to prevent some "why on earth would you want to do that" sort of answers: This is more of a mind experiment than an attempt to implement real software. For fun. Don't worry about computational speed or the number of available memory bytes. Computers get faster and better all of the time. Imagine we have two data files: Mother.dna and Father.dna. What else would be required? (Bonus point for someone who tells me approx how many GB each file will be, and if the size of the files are exactly the same number of bytes for everyone alive on Earth!) There would ideally need to be a way to see what the egg becomes as it becomes a human adult. If you fancy, feel free to outline the design. I am initially thinking that there'd need to be some sort of volumetric voxel-based 3D environment for simulation purposes.

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  • BIT of a Problem

    The BIT data type is an awkward fit for a SQL database. It doesn't have just two values, and it can do unexpected things in expressions. What is worse, it is a flag rather than a predicate, and so its overuse, along with bit masks, is a prime candidate for being listed as a 'SQL Code Smell'. Joe Celko makes the case. Free trial of SQL Backup™“SQL Backup was able to cut down my backup time significantly AND achieved a 90% compression at the same time!” Joe Cheng. Download a free trial now.

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  • Integrating feature request functionality directly into the business software you write?

    - by Aaron Anodide
    What are relative merits of something like a button on a piece of custom bizware that says, "press me to ask for a feature" or "click here if something didn't work right". The problem I'm trying to remedy is the general lack of formality surrounding feature requests. Most specifically, the rate at which I receive walk-ups from end-users. Taken one at a time, it can be beneficial, but sometimes it can hinder productivity on the larger scale. Has anyone done something like this and has it been a general success or alternately somewhat a waste of time. My instincts are not giving me a hint here.

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  • How to change the state of a singleton in runtime

    - by user34401
    Consider I am going to write a simple file based logger AppLogger to be used in my apps, ideally it should be a singleton so I can call it via public class AppLogger { public static String file = ".."; public void logToFile() { // Write to file } public static log(String s) { AppLogger.getInstance().logToFile(s); } } And to use it AppLogger::log("This is a log statement"); The problem is, what is the best time I should provide the value of file since it is a just a singleton? Or how to refactor the above code (or skip using singleton) so I can customize the log file path? (Assume I don't need to write to multiple at the same time) p.s. I know I can use library e.g. log4j, but consider it is just a design question, how to refactor the code above?

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  • Is C++ indispensible for AAA game engines, as long as we have console-platform games? [closed]

    - by user1174924
    C++ has remained the industry standard for game engines much because of its features.. The primary reasons are(afaik): Technical reasons - High performance, native runtime, portibility, negligible latency, and more recently concurrency. Socio-Technical reasons - Availability of Libraries, Legecy stuff, most scripting languages on games have a good C api (ex lua), Good IDEs and most recently improved Development time.(C++11) Social reasons - People know C++, Licenced technologies, and battle proven. Does this make C++ for game engines indispensible, so long we have game consoles? Would not, the above features make me implement new graphics technology in C++ only? Edit: Will learning C++ garuntee me a job as a game engine dev In the future? I want to master every aspect of the language, but I already know C# and python. Should I allocate my time learning C++. I want to be a game engine developer.

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  • Repelling a rigidbody in the direction an object is rotating

    - by ndg
    Working in Unity, I have a game object which I rotate each frame, like so: void Update() { transform.Rotate(new Vector3(0, 1, 0) * speed * Time.deltaTime); } However, I'm running into problems when it comes to applying a force to rigidbodies that collide with this game objects sphere collider. The effect I'm hoping to achieve is that objects which touch the collider are thrown in roughly the same direction as the object is rotating. To do this, I've tried the following: Vector3 force = ((transform.localRotation * Vector3.forward) * 2000) * Time.deltaTime; collision.gameObject.rigidbody.AddForce(force, ForceMode.Impulse); Unfortunately this doesn't always match the rotation of the object. To debug the issue, I wrote a simple OnDrawGizmos script, which (strangely) appears to draw the line correctly oriented to the rotation. void OnDrawGizmos() { Vector3 pos = transform.position + ((transform.localRotation * Vector3.forward) * 2); Debug.DrawLine(transform.position, pos, Color.red); } You can see the result of the OnDrawGizmos function below: What am I doing wrong?

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  • ideas on multiplayer games which include lots of collaboration?

    - by user494461
    For my master thesis I wanted to design a small multiplayer game which includes more than one player(maybe 5), has 2-3 players collaborating at a time to achieve some task. The most important thing is realistic simulation of the movable objects in the scene which more than one player should simultaneously interact with. I would also prefer large virtual environments (VEs) like mmogs where groups of players are interacting in different areas of the VE. tasks for players should include 2-3 players touching movable objects at same time. e,g, a very basic task can be users lifting a cube together and pushing it through a hole I am not new to designing virtual environments with openGL, but have never designed games before and rarely play other than few of my favorite ones like Fifa. I wanted some ideas on what kind of games should I look at which should help me with ideas for my tasks for the users to gain points and win in games? any current indie games which might inspire me?

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  • GPG Workflow in 11.04

    - by Ross Bearman
    At work we handle the transfer of small bits of sensitive data with GPG, usually posted on a secure internal website. Until Firefox 4 was released, we used FireGPG for inline decryption; however the IPC libraries that it relied upon were no longer present in FF4, making it unusable and it will no longer install in FF5. Currently I'm manually pasting the GPG blocks into a text file, then using the Nautilus context-menu plugin or the command line to decrypt the contents of the file. When we're handling large amount of these small files throughout the day this starts to become a real chore. I've looked around but can't seem to find much information on useful GPG clients in Ubuntu. A client that allowed me to paste in a GPG block and instantly decrypt it, and also paste in plaintext and easily encrypt it for multiple recipients would be ideal. So my question is does this exist? I can't seem to find anything about this with obvious searches on Google, so hopefully someone here can help, or offer an alternative workflow.

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  • Is there a way to publish IOS app from windows/Linux?

    - by user65760
    So I have been using Linux(especially, ubuntu) and windows(windows 7) for a long time . But i dont have a MAC, neither do i have an iphone. I do not actually want to buy them either . So the problem here is :how do i publish my app from windows or linux ? Kindly do understand i am not speaking about jailbroken programs(for jail broken i phones), i do not have any one near me who will lend me a MAC to publish my app . I started learning objective C some time ago. However, whenever i search the internet i get this information that there is no full proof way of publishing an app from windows or Linux . I also do intend to make it a paid app, meaning i dont wanna make it free. It will be very helpful if someone can suggest a way to overcome this problem .

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  • VMWare Player pauses often

    - by pascal
    I'm using a 64bit Windows 8 inside vmplayer, with 2 virtual processor cores, virtual hard disk resides on a fast local disc and is not preallocated; host CPU is Intel i7 3770, should be capable of hardware virtualisation but I don't know if VMWare uses it; NAT networking; Sound card connected, USB connected, accelerated 3D graphics (NVidia 313.30 on host) My problem is, that the VM often pauses for a few seconds, and then speeds up for a few seconds to reach real time again. Time in the VM actually moves faster after the pause, for example all animations using timers speed up. When running, the vmware-vmx process shows ~150% CPU usage in top, but 0% when pausing (and D state i.e. waiting for IO). iotop shows normal disk writes from vmware-vmx threads, but during pauses, the flush kernel thread uses 99%. Are there some options to try so that VMWare doesn't wait for IO? I've tried a few things available from the GUI but the issue never went away…

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  • Ubuntu fail to start on a dual boot with Windows 7 on Vaio

    - by user94628
    I followed the instructions for the Ubuntu windows installer on my Sony Vaio laptop (model SVT131A11M). Upon restart I was prompt to choose the OS for boot (Win7 or Ubuntu), but then I shut down the machine and from the next boot, every time I choose to boot into Ubuntu, the GNU GRUB terminal appears with a grub> prompt. Now I'm able to boot into Win7, but can't boot into Ubuntu properly. Why does it happen and how come I was able to start Ubuntu successfully the first time?

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  • How to use different input language for different active (application) windows?

    - by anvo
    I'm working under 12.04 and suppose I have a Firefox windows active (or in foreground) with English as input language and I need to type a document in other language using some text editor. With the text editor in foreground (or active) and the input language set to a non-English one, when I bring Firefox in foreground (or making it active) the input language remains set to the non-English and the language flag does not switch to English (as it would be expected, since I do not alter the language during the whole Firefox session). Because of this, I have to make extra moves and change the input language manually every time I switch from the text editor to Firefox and back to text editor. This was not happening with 10.04, and each application windows had the corresponding input language set to its default or previous session every time I was bringing it to the foreground! How will I make 12.04 to behave the same way?

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  • How can I support scrolling when using batched rendering for my tiles?

    - by dardanel
    I have tiled map 100*75 and tiles are 32*32 pixel.I want to use batching for performance .I don't figure it out , because of my game needs scrolling and every frame i draw 22*16 tiles (my screen is 20*16 tile) .I thought that batching tiles for every frame .Is it good or any suggestion? edit :to more clarify I want to use occlusion culling and batching at the same time.I thought that drawing only visible areas and batching them together .But there is a something i couldn't figure out .When scrolling screen with translate matrix , if one row become invisible , I bind new row and batch them again.Every batched objects needs to buffer again.So I batch tiles and buffer to VBO every time when one row become invisible .I don't know these way is efficient or not .This is my question .And i am open to any suggestions.

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  • Slow writing HDD speed, Ubuntu 12.04 64-bit, Thinkpad T520i

    - by pyc
    It seems that (but I'm not completely sure), that when I'm copying files from gigabit network to HDD, I can't use full potential of the network which in my case is about 60 MB/s, because HDD writing is so slow like lower than 10 MB/s, and also it's slowing down the whole system which becomes pretty much unresponsive, almost impossible to work with. Copying files to samba share residing at Ubuntu machine, connected to share from Windows 7, I'm completely sure my network equipment is OK, and there's no CPU intensive process on Ubuntu except smbd getting about 10-20% from time to time which I think is OK. Something here is burried deep I think, maybe even in kernel. Already tried to switch from AHCI to compatibility mode, and turning acpi on and off - nothing helped. So it's like HDD buffer is full and emptying slowly while machine is sluggish, load is about 3 to 4. Somebody experienced the similar problems? Some help on troubleshooting process and identifying the cause would be helpful too :) Thanks!

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  • High-Powered Sites for low Cost

    - by HighAltitudeCoder
    Ahh, I am experiencing the intimidation of my very first post - visible by the whole world. Ok, here goes.   This first post is nothing exceptional.  It is simply a recommendation based (fittingly, I suppose) upon the job search you may be gearing up for.  I find myself in this very situation right now.  And, I will take my own recommendation after posting this entry. Job-Seekers: To the left you will notice two links under "Recommended Learning".  I have found these links to be invaluable when it comes to re-tooling, re-familiarizing, or otherwise resharping my skills when looking for that next job. Often, you will find job-postings with the text, usually posted after a laborious list of qualifications indicating the company's desire to hire candidates who know what they are doing: "...Looking for a candidate who can hit the ground running...".  The interesting thing about this post to me is I've encountered many individuals who, after speaking and working with them for some time, I've realized are perfectly capable of hitting the ground running - and FAST.  But what if they speed off in the wrong direction? The next time you spearhead a major task in your job, ask yourself: Am I headed in the wrong direction?  There are many ways to do this.  In fact, I've found in this new field there are more tempting ways to steer your project in the wrong direction than there are good ones.  I don't want to suggest that every one of my posts will fall into the "right direction" category, however I do think a healthy dose of introspection of the pros and cons will always be beneficial before you set off. That said, allow me to expound on the previously mentioned links. These web sites are invaluable.  They demonstrate the capabilities of existing as well as new and upcoming tools available in several IDE's.  I've viewed many tutorials in LearnVisualStudio.NET, and only one or two so far in TrainingSpot, however I've been delighted in their simplicity and straightforward approach to proper usage of the particular tool or concept being discussed.  They have not (so far in my experience) demonstrated ways in which to use the tools that become cumbersome, impractical, or error-prone. Each website has step-by-step videos that can be paused, replayed, and most importantly, they are done in real time.  As the author is typing, the viewer gets to experience the coding experience from a first-person perspective, including syntax errors, unexpected behaviors, IDE setup idiosyncracies, everything.  A subtle value I've gained from these videos is that a certain degree of confusion and introspection is normal when working with new tools and exploring new paths.  They (as well as your own experience) are not to be feared, but enjoyed.  I highly recommend them. Good work, guys!

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