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  • 3d user experience with HTML5 and Javascript

    - by chako
    I've to build a 3D user experience with HTML5 and any required JS library which provides such functionality. 3D scene consists of a cylindrical pipe and surface. It has 360 degree rotation and can zoom in and out. As user selects a parameter, specific value of that parameter at various depth of pipe in surface should display. I've searched for HTML5 3d and JS libraries and found three.js could help for this.Also found this useful presentation on HTML 3d engine: http://projects.mariusgundersen.net/OnGameStart/#1 .But as this is my first time with HTML5 3d modeling, how should I initiate to build ? What parameters should be considered ? Which tools and libraries would best fit for such requirements ? I would like to create a 3d model using HTML5 and JS 3d engine as shown in the 1st image.

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  • 3D Screensaver interfering with WPF application (Windows XP)

    - by Andrew Keith
    I have a fairly large application that uses WPF for its user interface. I recently found an unusual defect regarding 3D screensavers. The 3D screensavers 3D FlowerBox,3D Flying Objects,3D Pipes,3D Text causes 1 of my WPF windows to disappear when the screensaver activates. Other screensavers are fine. My application only encounters this problem on Windows XP. I have some experience with DirectX. When a 3D screensavers activates, the d3d device context will be switched to exclusive mode. I reckon that WPF has trouble restoring the device context when the device switches back to cooperative mode (hence why its only affecting windows XP) Has anyone seen such a scenario occur before ? Is there a remedy for the problem ? Windows XP SP3, DirectX 9.0c, .NET 3.5

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  • How to multiseat with HW 3d accel on CentOS 6.3 Final?

    - by user35070
    I would like to setup a multiseat configuration on CentOS 6.3 (two video cards, two keyboards, two mice, two monitors) and have hardware accelerated 3D on both monitors. 3D HW acceleration rules out Xephyr. I saw somewhere that recent versions of GDM (3.3 and newer?) don't support multiseat, so do I have to install KDM to make this work? If I just create a duplicate section with new device identifiers in my xorg.conf file, will this 'just work'? Using different ports on the same video card and separate keyboards, mice, and displays, the result was a desktop which spanned both monitors with both keyboards and mice acting as the same input in the GUI. I will power down and put in the new video card and report on the results soon. Both video cards are nvidia. UPDATE after putting in another NVIDIA video card, default behavior (before changing xorg.conf) is that one screen works normally, and both mice and keyboards are connected to it. Changing xorg.conf and the display manager to KDM and following the directions here https://help.ubuntu.com/community/MultiseatX#Ubuntu_10.04_.28Lucid.29 , I have 2 mirrored screens connected to separate video cards, DRI enabled, and 2 mice both connected to the same pointer. Keyboards don't do anything, however, I probably just need to fix a setting in xorg.conf I would still like to get multiseat functionality, eg. separate screens with separate input devices I have verified that the separate X processes are running (see page above) using 'ps aux | grepX [01]'

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  • How do I revert updates/tweaks to get to a usable GUI?

    - by Frankenmartin
    I just installed 12.04 the other day and then ran into trouble upon restarting after installing updates. What I did before the problem occurred: I did not make many changes before this problem occurred. Changes I did make included: Downloading and installing Adobe Flash Player (off topic but: I am under the impression that Java, "C&C" and Shockwave can not be run in Ubuntu. Could anybody verify this?) I also installed gnome-tweak-tool and used it to install several themes. These themes worked well until restarting after the update. Is it possible that one of these themes caused the problem (in combination with the update or because of the restart)? Installed 215 updates from update manager and restarted my system. Current Situation: Unity 3D is unusable since restarting after running updates. When I log in after entering my password the following things happen: the overhead panel disappears and the screen goes black for a minute my wallpaper flashes for a couple seconds but then the screen goes black again after another minute the wallpaper reappears but nothing else does and I am not able to open anything or even right click. after 5 minutes I can finally get a right click menu eventually a box comes up warning about a Compiz failure and asking to let it quit--which I did. Using the right click functionality I was able to create a new folder on the desktop and use this to open a file browser. In doing so I noticed that the downloads I had made were missing (music, image files, etc., even after unpacking several .zip and .rar files) even though I believe that everything should still be there. Any new windows that I create are un-closable/minimizable/movable/etc, because the window bars are missing. I have tried rebooting several times but the results are the same. I was able to browse some off the System Settings windows by clicking on the wallpaper link in the right click menu. In doing so I navigated into the update manager and noticed that updates were selected to be accepted from some "unsupported sources". I do not recall setting these options myself and wonder why these--potentially dangerous--options would be selected by default. Unity 2D is usable but not free of bugs--I stumbled across the ability to log into a Unity 2D session while trying to log into Unity 3D. So far I have only noticed one bug in Unity 2D: the close, minimize and maximize buttons are invisible--however they are still usable despite being invisible. What I need: I'm very new to Linux and Ubuntu and still am in the feeling out stages. As such I will have some trouble answering clarifying questions. I haven't used the terminal yet and would probably not be comfortable using it without very clear instructions. What I do need is to know how I can roll back/remove all those updates so I can use my computer regularly again. I do believe that I could follow step-by-step instructions as long as they are clear and concise if someone knows what my problem is.

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  • Graphics card recommendation for dual-HD output?

    - by Graham
    I'm going for a dual-HD monitor setup (HDMI or DVI output), running Ubuntu 11.10 64-bit with Unity 3D. What graphics card / video card should I get? Requirements: Dual-monitor output for DVI (mixed-resolution: 1920x1080 and 1920x1200) Or dual-HDMI output, if it works with Ubuntu Smooth desktop compositing and (Chrome) browser and IDE window rendering At least 60fps on fullscreen glxgears (1920x1200 resolution) Supported and non-buggy behaviour in Unity 3D/Compiz Not looking to play games Smooth fullscreen video playback (just because)

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  • Can I blacklist an appindicator?

    - by d3vid
    I've whitelisted some indicators for apps that don't yet have Unity-compliant appindicators. Is there any way to blacklist appindicators for apps that are Unity-compliant (not old-style indicators) but don't provide a "Don't show in the system tray" option? Any solutions to ban an appindicator from being displayed, GUI- or CLI-based, are welcome. (I'm not looking for a way to just hide them like you can hide system tray icons in Windows.) (New-style appindicators can't be removed from the systray-whitelist.)

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  • Empty tooltips in MATLAB

    - by GriffinPeterson
    I am running MATLAB R2013b. Under Unity, the built-in editor of MATLAB shows empty tooltips, as seen here: http://imgur.com/4VSq6i8 Under xfce the tooltips are showing up just fine. My system: Ubuntu 14.04, Intel i7 4770K. The question has already been posted somewhere else (http://stackoverflow.com/questions/21915939/matlab-code-analyzer-produces-empty-tooltips, http://www.mathworks.com/matlabcentral/answers/116987-empty-tooltips-in-code-analyzer ), but I think this is a Unity-specific problem. Any ideas?

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  • Ubuntu 12.04 : menu bar started to appear on window

    - by piyush
    I had some broken package problems, and had to reinstall ubuntu-desktop, libqtgui4 and some other system packages. Since then, "some" of my applications are showing menu bar within the window, like this: Some windows like Emacs, vlc are showing such menu bar, while others are working fine (nautilus, terminal still have menu bar on the unity top panel). Is there a way to get it back to the Unity panel?

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  • ubuntu 14.04 gnome crashed after installation

    - by agha rehan abbas
    i have recently installed ubuntu 14.04 gnome and i was dual booting with gnome and unity but suddenly gnome crashed as when i open it it shows just a blank screen with a single arrow mark and nothing else i have waited for 20 minutes but the screen did not changed i have made a264gb partition for gnome and now as gnome has stopped working can i get that partition again into unity or can i repair gnome to work properly i have used gnome once and it worked properly that time can any one solve this issue

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  • How do I remove only shopping searches?

    - by Amanda
    I have a brand new 13.10 install and I want all this shopping spyware nonsense gone. Searching for "Ubuntu shopping spyware nonsense" led me to apt-get remove unity-lens-shopping but I don't actually see a unity-lens-shopping package. How do I remove shopping searches in 13.10? Update: Is there any way to distinguish the scopes that search remote servers (Ebay, Amazon, AskUbuntu) from the ones that search my local computer? Or do I have to go through them all?

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  • Quickly package command fails

    - by Nick Lemaire
    I get an error when trying to package my quickly application: lemaire@laptop:~/Quickly/unity-bookmarks$ quickly package ........Ubuntu packaging created in debian/ ............An error has occurred during package building ERROR: package command failed Aborting It doesn't really give me an indication of what went wrong. It used to work before. If you need to take a look at the code: lp:~koukin/+junk/unity-bookmarks

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  • No windows preview option(Similar tp Windows 7) in compiz?

    - by harsh
    Guys I saw a video on the net regarding compiz to enable windows preview option when i hover a mouse over it. I installed compiz through Ubuntu Software centre and then I searched and found that there is no option called "Windows Preview" in it ! There is a unity option but it doesn't have a windows preview option. Also I would like the freedom to move unity anywhere from top-bottom-left-right. Will this damage my system? Please reply at the earliest :-|

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  • Error while running unity_support_test

    - by Tojo Chacko
    My unity session won't start and it always gives me a segmentation fault. So I tried running /usr/lib/unity_support_test but this too gave me some error. X Error of failed request: BadRequest (invalid request code or no such operation) Major opcode of failed request: 136 (GLX) Minor opcode of failed request: 19 (X_GLXQueryServerString) Serial number of failed request: 22 Current serial number in output stream: 22 What does this mean? Doesn't my machine satisfy unity's requirements?

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  • How do you completely reset monitor configuration (e.g. what used to be dpkg-reconfigure xserver-xorg)?

    - by John
    Using unity 11.04. I have a secondary monitor (actually two, one at home, one at work). The home twin monitor set up works perfect (Viewsonic monitor). At work, I get very buggy behaviour, such as full screen applications 'ghosting' when maximized, and other strange effects. I would like to try and completely reset the monitor configurations (not unity or compiz), before doing anything else. In 10.10 this would be accomplished: dpkg-reconfigure xserver-xorg

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  • What is the use of the workspaces?

    - by kniwor
    I was wondering what use are the workspaces at all, if any. I notice that when I switch to another workspace, all the apps still show in the unity bar and all the icons are still present in the taskbar, and clicking on them takes me to the workspace with those windows. So really, why would I ever care to switch it, and for what purpose? It would have made sense if switching windows completely gave be an empty unity bar where I can start multiple, independent instances of various applications.

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  • Switch between apps with keyboard only (not ALT+TAB or SUPER+<number>)

    - by brejoc
    I'm looking for a way to switch between Apps with the keyboard only and not limited to some applications by defining shortcuts. Gnome3 offers the possibility to switch to (or start) an application by typing the app name. KDE allows this with krunner. The application lens in Unity does not offer this at all: https://bugs.launchpad.net/ayatana-design/+bug/1027792 Is there now way to master this very basic and handy functionality with Unity?

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  • Unity calendar lens not showing events

    - by David_G
    I'm trying to get proper/useful calendar integration into Ubuntu 12.04. I have a Google Calendar (& account) and I want to be able to use this without opening the browser. I want to get the Unity Calendar lens working, so that it shows events coming up, and it allows me a quick way to add new events. However, after installing it, it does not find any events, nor allow me to add a new event. Note that I've installed Lightning 1.4, Evolution mirror 0.2.3, Evolution, and unity-calendar lens. I've also installed Calendar-indicator. I suspect that somehow the lens is not getting the calendar information from thunderbird via evolution. A bit of searching around led me to try this command: /usr/lib/calendar-lens/calendar-lens-daemon.py. With this result: /usr/lib/python2.7/dist-packages/gobject/constants.py:24: Warning: g_boxed_type_register_static: assertion `g_type_from_name (name) == 0' failed import gobject._gobject Traceback (most recent call last): File "/usr/lib/calendar-lens/calendar-lens-daemon.py", line 324, in daemon = Daemon() File "/usr/lib/calendar-lens/calendar-lens-daemon.py", line 80, in init for calendar in evolution.ecal.list_calendars(): AttributeError: 'NoneType' object has no attribute 'list_calendars' Any ideas?

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  • Where do I start in regards to making a Gnome/Unity Form Application

    - by JMK
    Ok so I am familiar with developing Form and Console applications on Windows using Visual Studio .Net with C#, but where do I start when it comes to Linux distro's like Ubuntu, is there an equivalent? How would one go about matching what they can do in a Windows environment with .Net and C# in a Linux environment without .Net coding in something like Java or C/C++? I am aware of Eclipse, does eclipse have a form designer or do you have to code the design of any Gnome/Unity forms manually? Can I use eclipse to write the Linux equivalent of a console application, that you just double click on to run? I also know about Mono, but the idea is that I want to learn how to develop software without using anything in the Microsoft stack and am not sure where to start. What is the standard language/framework used to develop these types of applications on Linux? As I become more proficient with Visual Studio, C# and .Net, it has struck me that without these Microsoft tools, I am nothing. I am only capable of developing for the Microsoft OS and this scares me. This isn't some anti Microsoft thing, Microsoft makes some incredible Software/Hardware/Operating Systems/IDE's, but it is generally a bad idea to put all of your eggs in one basket so if I want to learn how to develop Terminal and Gnome/Unity form applications where in the world do I start? I have used Linux on and off for years, but Windows has been my primary OS. However I have watched Linux get better and better and as much as I love Windows 7, I am dubious about Windows 8 (I for one will sorely miss my start menu)! Obviously MS aren't going anywhere anytime soon and I could spend the the next couple of decades developing for .Net without any issues but just because you can get away with something doesn't always mean it's a good idea. Thanks

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  • Unity calendar lens not showing events in Ubuntu 12.04

    - by David_G
    I'm trying to get proper/useful calendar integration into Ubuntu 12.04. I have a Google Calendar (& account) and I want to be able to use this without opening the browser. I want to get the Unity Calendar lens working, so that it shows events coming up, and it allows me a quick way to add new events. However, after installing it, it does not find any events, nor allow me to add a new event. Note that I've installed Lightning 1.4, Evolution mirror 0.2.3, Evolution, and unity-calendar lens. I've also installed Calendar-indicator. I suspect that somehow the lens is not getting the calendar information from thunderbird via evolution. A bit of searching around led me to try this command: /usr/lib/calendar-lens/calendar-lens-daemon.py. With this result: /usr/lib/python2.7/dist-packages/gobject/constants.py:24: Warning: g_boxed_type_register_static: assertion `g_type_from_name (name) == 0' failed import gobject._gobject Traceback (most recent call last): File "/usr/lib/calendar-lens/calendar-lens-daemon.py", line 324, in daemon = Daemon() File "/usr/lib/calendar-lens/calendar-lens-daemon.py", line 80, in init for calendar in evolution.ecal.list_calendars(): AttributeError: 'NoneType' object has no attribute 'list_calendars' Any ideas?

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  • Using 2d collision with 3d objects

    - by Lyise
    I'm planning to write a fairly basic scrolling shoot 'em up, however, I have run into a query with regards to checking for collision. I plan to have a fixed top down view, where the player and enemies are all 3d objects on a fixed plane, and when the enemy or player fires at the other, their shots will also be along this fixed plane. In order to handle the collision, I have read up a bit on collision detection in 3d, as it is not something I have looked into previously, but I'm not sure what would be ideal for this situation. My options appear to be: Sphere collision, however, this lacks the pixel precision I would like Detection using all vertexes and planes of each object, but this seems overly convoluted for a fixed plane of play Rendering the play screen in black and white (where white is an object, black is empty space), once for enemies and once for the player, and checking for collisions that way (if a pixel is white on both, there is a collision) Which of these would be the best approach, or is there another option that I am missing? I have done this previously using 2d sprites, however I can't use the same thinking here as I don't have the image to refer to.

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  • Installing Java3D on Eclipse

    - by Matt
    I'm trying to use Java3D in my project. This is the error I receive: 29-Dec-2010 1:01:29 AM javax.media.j3d.NativePipeline getSupportedOglVendor SEVERE: java.lang.UnsatisfiedLinkError: no j3dcore-ogl-chk in java.library.path Exception in thread "main" java.lang.UnsatisfiedLinkError: no j3dcore-d3d in java.library.path at java.lang.ClassLoader.loadLibrary(Unknown Source) at java.lang.Runtime.loadLibrary0(Unknown Source) at java.lang.System.loadLibrary(Unknown Source) at javax.media.j3d.NativePipeline$1.run(NativePipeline.java:189) at java.security.AccessController.doPrivileged(Native Method) at javax.media.j3d.NativePipeline.loadLibrary(NativePipeline.java:180) at javax.media.j3d.NativePipeline.loadLibraries(NativePipeline.java:137) at javax.media.j3d.MasterControl.loadLibraries(MasterControl.java:948) at javax.media.j3d.VirtualUniverse.<clinit>(VirtualUniverse.java:280) at World.<init>(World.java:10) at Start.main(Start.java:12) I have copied the .jar files into my project's lib folder and linked them in Project - Properties - Add Jar File. There was also a .dll file in the Java3D download that I haven't touched or included in any way. What am I missing?

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  • 3D and AI basics. The foundation before the coding.

    - by Allan
    Hi, everyone. (If you have the time and patience:) I've recently made the decision to study programming seriously and I'm about to order TAOCP and Concrete Mathematics to begin my studies (please don't get caught up on this). I'm very much interested in learning and understanding how 3D works but I'm aware that if I plan to do it right there's still a long walk before I get to actually play with 3D coding. Now to the question.. (tl;dr) Excluding programming itself, what disciplines do I have to be familiar with to code 3D? What kinds of mathematics? Physics? What else? What books do you recommend on such subjects? Now read it all again but replacing "3D" with "AI". Please don't recommend computer-specific books. The question is about the foundation to be learned before using the machine. Also, if possible, please keep the list brief; I plan to order one book on each subject but no more than that for now. Excuse me for any English mistakes, it's not my first language. Thank you.

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