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Search found 619 results on 25 pages for 'ray dey'.

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  • Mouse pointer position to screen space

    - by Ylisar
    If I have a mouse pointer position in pixels of canvas, I can easily convert it to the -1..1 range for both X & Y by lerping by dividing with canvas dimensions. However, the problem is what I should put in Z & W if I want my screen space position to be on the near plane? The step afterwards would be for me to multiply by the inverse of view-projection to take me to world space, where I easily can construct a ray from the cameras world space position.

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  • Internet TV streaming applications

    - by mark kirby
    Are there any programs for Ubuntu that can pull TV streams from the Internet ? For example like on a blu-ray player you get BBC iplayer and hulu and youtube as apps, so is there an application that can do this ? I know XMBC can but its to fiddly and resource hungry, I just want the net TV apps and not the full media center. Boxee was great for this, it was a media center but had an interface for the apps not just sticking them in some strange menu like XBMC. Please let me know of anything you know of

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  • Code Camp 2013 Harrisburg PA

    - by raysmithequip
    Originally posted on: http://geekswithblogs.net/raysmithequip/archive/2013/10/15/154349.aspxThe Centrral Pensylvania Dot Net Users Group will be hosting a code camp nov 2 2013.  The Schedule is already on our groups' webpage, http://centralpenn.web121.discountasp.net/home/CodeCamp2013/tabid/109/Default.aspxYou will find the schedule on the pull down tab.  Registration is free, you will have to use Meetup to register.  http://www.meetup.com/Central-Penn-Dot-Net-User-Group/events/141788672/Sign in to Meetup and register to attend Code Camp!! Learning will be plentiful, the giveaways will be COOL!! So you gotta be there!!!In a couple of days I will post the schedule here in an effort to spread the word. ray smith n3twu

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  • OpenGLES 2.0 gluunProject

    - by secheung
    I've spent more time than i should trying to get my ray picking program working. I'm pretty convinced my math is solid with respect to line plane intersection, but I believe the problem lies with the changing of the mouse screen touch into 3D world space. Heres my code public void passTouchEvents(MotionEvent e){ int[] viewport = {0,0,viewportWidth,viewportHeight}; float x = e.getX(), y = viewportHeight - e.getY(); float[] pos1 = new float[4]; float[] pos2 = new float[4]; GLU.gluUnProject( x, y, 0.0f, mViewMatrix, 0, mProjectionMatrix, 0, viewport, 0, pos1, 0); GLU.gluUnProject( x, y, 1.0f, mViewMatrix, 0, mProjectionMatrix, 0, viewport, 0, pos2, 0); } Just as a reference I've tried transforming the coordinates 0,0,0 and got an offset. It would be appreciated if you would answer using opengl es 2.0 code. Thanks

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  • Intersection of player and mesh

    - by Will
    I have a 3D scene, and a player that can move about in it. In a time-step the player can move from point A to point B. The player should follow the terrain height but slow going up cliffs and then fall back, or stop when jumping and hitting a wall and so on. In my first prototype I determine the Y at the player's centre's X,Z by intersecting a ray with every triangle in the scene. I am not checking their path, but rather just sampling their end-point for each tick. Despite this being Javascript, it works acceptably performance-wise. However, because I am modeling the player as a single point, the player can position themselves so that they are half-in a cliff face and so on. I need to model them as as a solid e.g. some cluster of spheres or a even their fuller mesh. I am also concerned that if they were moving faster they might miss the test altogether. How should I solve this?

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  • Most mind-blowing C# hack you’ve ever seen?

    - by sblom
    In the same spirit as the "Hidden features of X?" series, what are the most mind-blowingly well-executed "I didn't even think the language could do that!" hacks that you've ever seen in C#. For example, a favorite of mine from a while ago is a full ray tracer implemented in a single (complex) LINQ statement. (Note: this is a community wiki question to avoid the appearance of reputation-whoring.)

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  • Distinct with Count and SQl Server 2005

    - by chopps
    Hey everyone, Trying to work on a query that will return the top 3 selling products with the three having a distinct artist. Im getting stuck on getting the unique artist. Simplified Table schema Product ProductID Product Name Artist Name OrderItem ProductID Qty So results would look like this... PID artist qty 34432, 'Jimi Hendrix', 6543 54833, 'stevie ray vaughan' 2344 12344, 'carrie underwood', 1

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  • Distinct with Count and SQl Server

    - by chopps
    Hey everyone, Trying to work on a query that will return the top 3 selling products with the three having a distinct artist. Im getting stuck on getting the unique artist. Simplified Table schema Product ProductID Product Name Artist Name OrderItem ProductID Qty So results would look like this... PID artist qty 34432, 'Jimi Hendrix', 6543 54833, 'stevie ray vaughan' 2344 12344, 'carrie underwood', 1

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  • C# Image HttpHandler: Disable cookies in handler (YSlow / Google PageSpeed)

    - by user319111
    Hi. I have a HttpHandler for resizing images, round corners, reflection etc etc. This i working OK. The problem i have is, that some data is stored in cookies, and the cookies are send to images, when they are shown. Is there any way to disable this globally (cookie-free requests) in web.config, or even in the HttpHandler itself? Example page: http://test.roob.dk/dk/product/ray-ban-rb3359-polarized-16/ Thanks in advance CP // Denmark

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  • Further explanation of IntentService

    - by rayman
    Hi all, I was trying to get the purpose of the IntentService, and when should I use it? I tried to understand from the API, but not enough details on that one. Is there any analogy between this and running long-task on a working thread? Any further explanation and samples on why I would use IntentService would be very welcome. Thanks, ray.

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  • Infinite service

    - by rayman
    Hello, I have some proccess that i would like to run in the background the whole time. so i made it "service". my question is: is there anyway to prevent from the user to kill this service? (even if he uses third party app) thanks, ray.

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  • XNA - 2D Tile Lighting

    - by Cyral
    Im adding lighting to my 2D Tile based game. I found the link http://blog.josack.com/2011/07/xna-2d-dynamic-lighting.html useful, but the way its done it dosent support collision. What Id like is some help or links as I want one that can have -always lit up light points -collision (If the light ray hits a block, then dim the next block by whatever amount until its dark) Im a noob at this stuff, but ive been searching around for quite a while but no luck (I did find Catalin's tutorial, but it seemed abit advanced for me)

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  • Efficiency questions

    - by rayman
    Hi, I have to manage XML documents and Strings in my app. In terms of efficiency and memory usage, will a collection like ArrayList be much more expensive than String[]? Also, I could store the content as a regular String or XML. Is working with XML also more expensive? (When I say expensive, I am referring to the use of system resources.) If there are differences, are they significant? Thanks, Ray.

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  • applicaion and local service lifetime

    - by rayman
    As i understoond, if we have local service of some application, as soon as the application goes down, the service goes down as well - is that true? and if it is, how can we make an application to run all the time without go down? (without using Alarm manager). i though that the purpose of local service is to answer this situation: " to make the application everlasting" please, if some1 could explain me this better, thanks, ray.

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  • Should i use remote or local service for this scenario?

    - by rayman
    Hi, I need to build some kind of listener, now this listener suppose to run activies of diffrentz appz , i want this listener to be as a service that will run the appropriate activity, should i make it as a remote service or local service(for this i need some app to hold it - make sense?) what will fit in? thanks, ray.

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  • What's the best way to draw a fullscreen quad in OpenGL 3.2?

    - by Phineas
    I'm doing ray casting in the fragment shader. I can think of a couple ways to draw a fullscreen quad for this purpose. Either draw a quad in clip space with the projection matrix set to the identity matrix, or use the geometry shader to turn a point into a triangle strip. The former uses immediate mode, deprecated in OpenGL 3.2. The latter I use out of novelty, but it still uses immediate mode to draw a point.

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  • Remove focus from the current activity

    - by rayman
    Hi, How would i remove the focus from an activity which has just being installed/started, so the user's focus will remine on the previouse one? (while the new activity remine in the stack and will work in the background) thanks, ray.

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  • Determine connection state

    - by rayman
    Hi, Iam trying to determine if my current connection state is WIFI or Cell network(3g/2g.. etc) iam using SDK 1.5. tried couple of technics not realy working. any working suggestions? thanks, ray.

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  • Determine application version

    - by rayman
    Hi, I wanna know if there is anyway to determine not through the packages, but through applications the version of an application which isnt the current application. let's say right now i am in the scope of app A. and i wanna run an activity from app B. i wanna check before the version code of app B. thanks, ray.

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  • Having an issue while trying to implement In-App Purchase

    - by Raymond
    This is my first time to implement In-App purchase and I am using the tutorial located here: Ray Wenderlich Now I am sure this is something simple, but I am having issues figuring out, so I figured I would ask all of the gurus out here. The compiler is saying that _products is Use of undeclared identifier - (void)productPurchased:(NSNotification *)notification { NSString * productIdentifier = notification.object; [_products enumerateObjectsUsingBlock:^(SKProduct * product, NSUInteger idx, BOOL *stop) { if ([product.productIdentifier isEqualToString:productIdentifier]) { *stop = YES; } }]; }

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