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• Creating a WARP device in managed DirectX

  - by arex

  I have a very old graphic card that only supports shader model 2, but I need shader model 3 or up for the app I am developing. I tried to use a reference device but it seems to run very slowly, then I found some samples in C++ that allows me to change to a WARP device and the performance is good. I am using C# and I don't know how to create such type of device. So the question is: how do I create a WARP device in C#? Thanks in advance.

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• What effect does using itemprop="significantLinks" on anchors have for SEO and what is the ideal use?

  - by hdavis84

  I'm practicing application of microdata via http://schema.org. Anyone who's browsed the documentation there knows that there's a lot of need for improvement for more clear understandings on use for each property. My question on this post is more about the "significantLinks" property and how it effects SEO for on page, in content anchored text. Does anyone have any more information regarding whether its good to use for link optimization? I understand what schema.org means that it's to be used on "non-navigational links" and those links should be relevant to the current page's meaning. But will using this property hurt SEO or make SEO better for each page?

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• APress Deal of the Day - 19/Nov/2011 - Beginning GIMP

  - by TATWORTH

  Today's$10 Deal of the Day from APress at http://www.apress.com/9781430210702 is "Beginning GIMP". "In this fully-updated second edition, author and long-time member of the GIMP community Akkana Peck introduces the GIMP and shows you everything about it that you'll want to know—including how to prepare images for display on web pages, touch up digital photos, tap into powerful filters, effects, and plug-ins, and automate tasks using scripts." For those of you unfamilar with GIMP it is the GNU Image Manipulation Program and it is available for free from http://www.gimp.org/downloads/   Can't code withoutThe best C# & VB.NET refactoring plugin for Visual Studio

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• How can I perform a masked erase in SDL2?

  - by Kvisle

  I'm trying to implement some shadow/lighting effects in my 2D-project, and I've concluded that if there is an easy way to perform a masked erase on an SDL_Texture, it would make the drawing operations quite cheap. Let's say I have a texture of the part of the level where light is not meant to be rendered. I also have a texture with my "light map"; I want to use this to just draw omni lights from my light sources. Then I want to use the first image to 'subtract' the portions of the light map that are not to be rendered on the final scene. Then I draw my "light map" texture on top of my scene, with additive blending enabled. This sounds like a good theory in my head, but I can't see any functions in the SDL2 API that let me do masked erase from a texture. Am I overlooking something? Does anything like this exist?

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• The system is running in low graphics mode error before ubuntu gets installed

  - by hellodear

  I am using Bootable USB for installing Ubuntu with Windows 8.1. I have put pendrive and then booting my USB. When it shows me to try Ubuntu or install Ubuntu. Then I press Try ubuntu and then it says" "The system is running in low graphics mode". Then I press Ok. Then it shows 4 options. Then again I click Ok. Then it shows a black screen and nothing happens. I have tried all possible answers provided in AU. What should I do? Please help. I am using Windows 8.1 with dedicated graphic card (Video card - AMD Radeon HD 8670M). Installing 12.04 LTS with pre-installe Windows 8.1 in a Dell Laptop 3537 inspiron.

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• Ubuntu on low powered laptop

  - by zkent

  First off, I am new to Ubuntu. I come from a Windows background (DOS before that) and am loving it so far. I installed it on an older Dell laptop that I wanted to get another year out of. I set this machine up primarily as a LAMP development machine for a project I am working on. The machine is a Vostro 1500 and it has 4GB RAM (maxed) and an upgraded hard drive. I can't watch YouTube videos for long before it starts to overheat and start acting sporadic. I can live without YouTube but every so often the application switching (alt-tab) gets slower and begins not showing all applications and the Dash home quits displaying properly. I am sure I am asking a lot of this old machine. What I really want to know is: are there any settings in Ubuntu that allow me to lower the graphic effects (fade-ins, transparencies, fancy transitions, etc) that would be less taxing on the video card?

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• Split Texture2D Across Line

  - by Simie

  Background I'm using a texture as a damage map represented by an array of floats for displaying damage effects on a space ship in a process. An upside of this is being able to 'slice' ships in half, using an input damage map with a line down the middle, as shown in the diagram below. Question However, I'm encountering problems separating this split ship into two different entities. I would like to be able to split the image down the 'damage line', in a process similar to this: I don't have much idea where to start detecting the red line above. Any advice would be welcome.

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• Alt text vs CSS sprites (SEO vs speed)

  - by leeoniya

  I'm reworking our site to reduce HTTP requests and blocking requests by concatenating JS, css, gzipping, loading all JS via LABjs and using CSS sprites for images that were loaded individually via <img> tags before. Progress has been great so far - 5x page load performance improvement. However, we're in the top 5 organic search ranking in google for many targeted keywords and phrases. I'm afraid eliminating so many img tags with alt attributes can hurt our SEO. Does anyone have any experience with alt tag manip/removal and effects on SEO positions? Is previous rank "sticky"?

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• how can I start developing games? [closed]

  - by miguelacho

  as you may know very well, every individual related with software development is somehow related to the science or the activity that the program was made for, I am currently working as a programmer for a company that is dedicated to build enterprise software for ensurance business, before this job, I was working with a travel agency developing extra modules for the CRM they use (VTiger), so I can say I am related to ERP/CRM, the fact is, I would like to change this to another activity, like developing video games. I'd like to start developing games, by getting a job or making my own project, but: 1) I have no experience developing video games, is that an obstacle if I want to get a job? if is that so, how can I solve it? 2) if I want to make my own project I will need more people, like a graphic disigner or some others, isn't there a way to make the whole game by my own?

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• How do I get drivers working for an Nvidia GT560i on 12.04?

  - by keepitsimpleengineer

  I been using a test Xubuntu 12.04 LTS on my 64 bit workstation, because Ubuntu has dropped support for the nvidia graphic adapters my 10.04 LTS and I haven't been able to get them working. Now update manager has upgraded the kernel from 3.2.0-30-generic to 3.2.0-31-generic, and failed to produce a working nvidia module that the X server can load. Fortunately, when launching the 3.2.0-30-generic kernel, I still have use of the X server. Does anybody know a work-around or fix for this? I'm really worried, this is the last working Ubuntu distribution OS on the computer and I don't want to give up on Ubuntu. Details of problem here.

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• Setting up the GDM Theme

  - by Szymoninho

  I'm using Ubuntu 12.04 with Gnome Classic (no effects) and because of the fact that some system options have disappeared with the new system release I've been struggling with this for a while and despite this seems very easy I can't do this :/ - does anyone know how to choose a GDM Theme? I'm quite sure that GDM is now in use on my Ubuntu - I set it up with: sudo dpkg-reconfigure gdm Despite I moved the theme folder to /usr/share/gdm/themes nothing has changed by now, I've logged out and in a couple of times but everytime I get the standard log in window and wallpaper (different from mine). So I'll appreciate any kind of help from anybody, now I have absolutely no idea how to figure it out. Cheers.

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• Is this CPU usage normal for Xorg?

  - by Samuaz

  I checked System Monitor to see if the frequency of my CPU increases without doing anything and saw that xorg is always using 10-40% of the CPU even if it's not doing much of anything on the desktop or simply surfing the Internet. Is this normal? If not, how can I fix it? I have: a Macbook white 4,1 Core2 Duo running at 2.10 GHz GPU Intel GMA X3100 4GB of RAM Ubuntu 11.04 I am running Unity and I do not have many effects enabled. I have only activated Compiz animations, scale, desktop, some shadows...

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• jQuery 1.8 permettra de construire son propre build du framework JavaScript, sa déclinaison pour UI mobile également

  JQuery 1.8 permettra de construire son propre build Du framework JavaScript, sa déclinaison pour UI mobile également Nous l'avouons sans détour, c'est avec un peu de retard que nous nous faisons l'écho de la sortie de la pré-version de JQuery 1.8 et de la version officielle de JQuery Mobile 1.1.0. Mais comme dit le dicton, mieux vaut tard que jamais. Principale nouveauté de la pré-version 1.8 du Framework JavaScript, la possibilité de construire son propre build pour ajouter ou ne garder que les modules voulus (ajax, css, dimensions, effects, offset). Du côté de la version pour navigateurs mobiles du framework - qui permet de réaliser des UI tactiles (fortement inspirées d'...

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• What is approximate cost to develop iPhone/iPad app? Features described

  - by innodeasapps

  Need your help guys... I was working as an iPhone developer since last few months. And just a month ago I left the job, and now i got an offer to develop an iPhone/iPad app. I need to develop an universal app which has frames like PicFrame in which photos must adjust accordingly, with customizable frames, few photo effects like in instagram (Not exactly same but something like it) and then user can share photos on Facebook, tumbler,dropbox, etc. I might need around 30 days time to develop the desired app. Note that designing is not my part, I need to develop and test it thoroughly. I have no idea how much price should I ask to develop such app. As here is the place where we all developers meet, I feel I would get proper guidance. Thank you in advance...

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• What driver for nVIDIA GeForce MX440?

  - by ubufan

  I have recently installed (clean install) Ubuntu 12.10 on a desktop PC with nVIDIA GeForce MX440 (AGP 8x) and I have problems with Unity. Although I can see the desktop, however i can't see unity bar and icons. So, I decided to install lubuntu-desktop to see the performance. And yes! I choose lubuntu-desktop from Log On screen and the performance is definetely much better and has nothing to do with the aforementioned on unity. The system has native drivers from the Ubuntu installation. I didn't touch anything in xorg configuration. I also remember that I have managed to have the best performance with this graphic card on my previous Ubuntu 9.10 system, by editing some values in /etc/X11/xorg.conf file. But I can't remember that options, because I formatted the / partition! My question is: Which is the most suitable driver for this card, in order to load the unity feature and have better performance on it?

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• 2D Game Development dynamics in c++ [on hold]

  - by novice

  I am new to developing computer graphic applications in c++ using OpenGl. I want to develop games but I really am facing problems when it comes to understanding concepts like trajectory, collisions, gravity and also the use of various physics engines that are available. when i search the internet I kind of get lost because they aren't for beginners like me. There is some hardcore mathematics, physics and coding involved. I need to pick the concepts that are mostly needed in game dev like trajectory, collision etc. Any good tutorials that can help me out in picking these concepts from the start.

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• Does anyone use 12.04 with HD 6950?

  - by Midori

  Back when I first tried to switch from Windows to Ubuntu (6-7 months ago) I had several graphics related problems. The VGA was overheating, graphic glitches, video playing issues, slow/choppy window movements etc. After 2-3 reinstalls, hours of playing with different drivers/settings I decided to return to Windows :\ Now I want to give it another shot. But before I start to format, partitioning, backup and other time consuming stuff I wanted to ask if anyone using the 12.04 with HD 6950. Can I utilize the full potential of it, or the drivers are still not good enough? I know that Linux isn't meant to play games in the first place, but the games I playing (SC2, BLC, HoN, DotA 2) are working with wine as far as I know (or aren't?) and I can't find any reason not to switch from Windows if I can utilize the full potential of my config in Ubuntu. So anyone who got experiences with this VGA in Ubuntu please reply. Thanks in advance :)

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• Severe graphics and application problems after update

  - by jenald

  I wanted to upgrade from 11.10 to 12.04 with the built-in upgrade-feature. but during the upgrade my pc stopped working. When I restarted my PC Ubuntu starts OK, but with many errors (many apps don't work and some graphic-errors). I try to upgrade again to 12.04, but I can't, because my Ubuntu identifies itself as 12.04. I tried to upgrade with the cd-setup but this also doesn't work. What should I do, if I don't want to reinstall the whole system?

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• How to connect to other Ubuntu machine as X Server?

  - by Tibo

  When I want to work on my local Linux machines from windows, I use Putty+Xming and I set the Xming port in Putty connection settings. This way I have a terminal on the machine and if, for example, I run the command 'firefox' a firefox window is opened in Windows (while it is really running on the Linux machine). I want to do the same thing from other Linux machine (they are both Ubuntu machine) connect by SSH and become this connection X Server so any graphic component will be opened on local machine. How can I do that?

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• lower graphics setting in ubuntu

  - by zkent

  First off, I am new to Ubuntu. I come from a Windows background (DOS before that) and am loving it so far. I installed it on an older Dell laptop that I wanted to get another year out of. I set this machine up primarily as a LAMP development machine for a project I am working on. The machine is a Vostro 1500 and it has 4GB RAM (maxed) and an upgraded hard drive. I can't watch YouTube videos for long before it starts to overheat and start acting sporadic. I can live without YouTube but every so often the application switching (alt-tab) gets slower and begins not showing all applications and the Dash home quits displaying properly. I am sure I am asking a lot of this old machine. What I really want to know is: are there any settings in Ubuntu that allow me to lower the graphic effects (fade-ins, transparencies, fancy transitions, etc) that would be less taxing on the video card?

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• nVidia GT 220 not working properly with Ubuntu 12.10

  - by Glaedr

  I used to enable proprietary nVidia drivers on every previous Ubuntu release to get it working properly (elseway I was forced to a very low resolution and no graphic acceleration), and everything worked fine then. In particular, I noticed - still I don't know why - that the GPU fan on every OS gets noisy until the video drivers are loaded (runlevel 5, it seems, in Linux), and then slows down to a normal speed. Today I installed 12.10. Running the Live CD, surprisingly, everything was working fine: full resolution, acceleration, silent fan, and so on. The running driver was nvidia-current (GT 216). After installing and booting I found that the fan was overrunning. The installed driver is nouveau. I tried installing nvidia-current, or any other proprietary driver, even installing the kernel headers & source and then the drivers (as suggested here), but all I'm getting with proprietary drivers is, the irony, low resolution, noisy fan and no acceleration (thus obviously unity and compiz refusing to start). Does anybody know a way out?

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• No sound in World of Goo?

  - by user37805

  I installed WorldOfGooSetup.1.41.deb and it didn't work. There was a segmentation fault error (core dumped) in terminal. I fixed that with: sudo cp /usr/lib/x86_64-linux-gnu/libvorbis.so.* /opt/WorldOfGoo/libs32 sudo cp /usr/lib/x86_64-linux-gnu/libvorbis.so.* /opt/WorldOfGoo/libs64 That error is new for me as I have never had it before with previous releases of Ubuntu. The game starts now but no sound effects or music is played. I can hear music with my computer, videos, etc, so it is not a volume control problem. I am using ubuntu 12.04 final release.

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• Cannot shutdown, computer freezes

  - by Firouziam

  I've installed Ubuntu 12.04 (near windows 7) on my laptop(Dell studio xps 1640 with Ati Radeon HD 3670) and everything is working fine, but when I want to shutdown my computer it freezes! I don't know what to do after that, then I have to use power button to power off the computer and it's not good at all. I don't know what's the problem and I don't know how to figure this out. I installed the graphic card driver (12.6 version) from ATI website and it fixed my problem with playing videos but I think after that this shutdown problem appears! Would you tell me what's the problem and how can I fix it?

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• Un constructeur de code pour jQuery ? L'équipe de développement propose une autre solution

  Un constructeur de code pour jQuery ? L'équipe de développement propose une autre solution Malgré les interactions entre les composants de base (UI Core, Interactions, Effects) et les widgets UI, jQuery UI possède un constructeur de code qui permet de charger une version personnalisée n'incluant que les widgets vraiment utiles pour le projet en cours. Pour jQuery, les dépendances sont encore plus contraignantes, vous devez tenir compte de votre code, mais aussi de celui des plugins. Selon les options du plugin mises en oeuvre, celui-ci peut même utiliser différentes parties du code de jQuery. Pour faciliter ...

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• Ubuntu 14.10 no GUI or term login

  - by Lito

  I have updated yesterday my Ubuntu 14.10 installation with apt-get dist-upgrade. I was working all afternoon and after that I have rebooted computer. Once done it, lightdm doesn't starts (only gnome logo) and I can not view any of Ctrl + Shift + [1-6] terminals (cursor is blinking). I have read a lot of posts with no success: nividia/intel conflicts (I have a laptop with an Intel graphic card) I have enabled nomodeset and tried all this options My computer boots to a black screen, what options do I have to fix it? I have repaired grub I can load recovery/livecd/windows and mount partitions and network without problem I have all packages and system updated Here my logs. X11 not shows any error or problem, is loading all needed drivers without problem. How can I raise the level of debug? Best regards.

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