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  • Experimenting with other search engines

    - by Bill Graziano
    I’ve been a Google user so long I can hardly remember what I used before it.  Alta Vista maybe?  Or Yahoo.  I’ve tried Bing off and on but it never really stuck.  I probably care more about search engines than your average user because of their impact on SQLTeam.com.  Lately I’ve been trying two other search engines and actually switched to one of them. I’ve played with Blekko a little in the past.  They have some interesting ways to “slice up” your results.  For example, searching on “SQL Server /blogs /date” should just search all the recently updated blogs.  Those two extra words on the search are slashtags.  The full list of slashtags runs from /forums to just see forums to /twitter to /nikon to /reviews and on and on and on.  I laughed when I saw they had slashtags for both liberal and conservative.  I’d hate to find any search results that don’t match my existing worldview :)  You can also create your own slashtags.  I created a mini-search engine for the SQL Server blogs that I read.  You can search it for “backup” at http://blekko.com/ws/backup+/billgraziano/sql-sites.  I uploaded my OPML and it limited the search to just those sites.  It seems like the site is focusing more on curating results and less on algorithms.  This is an interesting site for those power searchers.  There are some great ways to curate results using slashtags.  For 99% of my searches (type words, click on one of the first few links) slashtags are overkill.  They do have some good information on page and site ranking though so I’ll probably send some time looking through that. Blekko recently got my attention again when they said they were banning “content farms” - and that includes eHow and experts-exchange.  I always feel used when I click on a link to EE and find myself scrolling all the way to the bottom to see if I can find the answer.  Sometimes it’s there but sometimes it tells me I need to pay first.  I’ve longed for a way to always exclude certain sites.  Blekko might be taking a hammer to a problem that needs a scalpel but it’s an interesting choice.  (And some of the comments in the TechCrunch link are interesting if you’re a search nerd.) DuckDuckGo is an odd name for a search engine.  Their big hook is that they don’t have search history.  If you wade through your Google account you can probably find the page where it stores your search history.  It was pretty enlightening to find mine.  It was easy to disable but that got me started looking at other search engines.  DDG (or DukGo) just feels like Google used to in the old days.  The results are good enough and the site is fast. Searches will return a snippet from WikiPedia or other site (like StackOverflow) at the top.  I think the idea is to answer the question without needing to visit the site.  I’m not sure that’s a good thing for SQLTeam.com. The only thing I really miss is image search.  You can add a “!i” at the end of any search and it will search the images on Bing.  Bing doesn’t have a great image search but it works for most of what I need.  They call these exclamation marks “!bangs” and they are kinda, sorta like slashtags.  I’ve been using DuckDuckGo now for a few weeks and I’m pretty happy with it.  I use Chrome for my browser and it was an easy switch to make.  It’s still a little surprising seeing my search results come up in a different format.  I’m starting to get used to it though.

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  • Racing MMO for Linux - 2D or 3D - Massively Multiplayer Online Racing Games for Linux

    - by Paulocoghi
    I really like multiplayer racing games, like Need for Speed World or similar. I wonder if there is any MMO racing game for Linux (2D or 3D). Browser-based games are also accepted. Note: I tried this question in the Gaming Q&A of StackExchange (see link below), but one user said that my question was off-topic. http://gaming.stackexchange.com/questions/16329/racing-mmo-for-linux-2d-or-3d-massively-multiplayer-online-racing-games

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  • Learn WinRT or Unity 3d?

    - by user1582878
    I am not sure where to ask advices about career development, so I am sorry if I am wrong. My question is what is better for me to learn, Win 8 and metro style applications or try to focus on some 3d engine, like Unity 3d? On the one hand I`ve got enought experience in c# and programming for business applications (WinForms and WPF), on the other hand I was always been fasinated by the creation of computer games and have strong math background. Which is better in terms of my career and new job opportunities?

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  • Super Mario – 3D Chalk Art (Time Lapse) [Video]

    - by Asian Angel
    This awesome time-lapse video lets you watch artist Chris Carlson create a fantastic 3D chalk art rendition of Mario on a sidewalk setting. There is certainly a lot more work and precision to it than some people may believe… Super Mario – 3D Chalk Art (Time Lapse) [via Neatorama] How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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  • Workaround: XNA 4 importing only part of 3d model from FBX

    - by Vitus
    Recently I found a problem with importing 3D models from FBX files: it sometimes imported partly. That is when you draw a 3D model, loaded from FBX file, processed by content pipeline, you got only part of meshes. “Sometimes” means that you got this error only for some files. Results of my research below. For example, I have 10Mb binary FBX file with a model, looks like: And when I load it, result Model instance contains only part of meshes and looks like: Because models from other files imported normally, I think that it’s a “bad format” file. When you add FBX file to your XNA Content project and build it, imported file processing by XNA Fbx Importer & Processor. On MSDN I found that FbxImporter designed to work with 2006.11 version of FBX format. My file is FBX 2012 format. Ok, I need to convert it to 2006 format. It can be done by using Autodesk FBX Converter 2012.1. I tried to convert it to other versions of FBX formats, but without success. And I also tried to import my FBX file to 3D MAX, and it imported correctly. Then I export model using 3D MAX, and it generate me other FBX, which I add to my XNA project. After that I got full model, that rendered well! So, internal data structure of FBX file is more important for right XNA import, than it version! Unfortunately, Autodesk FBX is not an open file format. If you want to work with FBX, you should use Autodesk FBX SDK. This way you can manually read content of FBX file, and use it everyway. Then I tried to convert my source FBX file to DAE Collada, and result DAE file back to FBX, using FBX Converter (FBX –> DAE –> FBX). The result FBX file can be imported normally.   Conclusion: XNA FbxImporter correct work doesn't depend on version (2006, 2011, etc) and form (binary, ascii) of FBX file. Internal FBX data structure much more important. To make FBX "readable" for XNA Importer you can use double conversion like FBX -> Collada -> FBX You also can use FBX SDK to manually load data from FBX P.S. Autodesk FBX Converter 2012 is more, than simple converter. It provide you tools like: FBX Explorer, which show you structure of FBX file; FBX Viewer, which render content of FBX and provide basic intercation like model move and zoom; FBX Take Manager, which allow to work with embedded animations

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  • Surface of Revolution with 3D surface

    - by user5584
    I have to use this function to get a Surface of Revolution (homework). newVertex = (oldVertex.y, someFunc1(oldVertex.x, oldVertex.y), someFunc2(oldVertex.x, oldVertex.y)); As far as I know (FIXME) Surface of Revolution means rotations of a (2D)curve around an axis in 3D. But this vertex computing gives a 3D plane (FIXME again :D), so rotation of this isn't obvious. Am I misunderstanding something?

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  • Searching for anaglyph 3D games and apps

    - by koanhead
    Hey all, recently I installed the Minecraft .jar and played it. It's a bit of fun, but the coolest thing about it IMO has been the anaglyph 3D option. Yay, a ViewMaster game! Anyway, I'm looking for other anaglyph 3D games and apps. I understand that there's an anaglyph plugin for Compiz as well, although it apparently is an inactive project since 2008. An anaglyph interface for Blender would be severely awesome, right?

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  • Does 3d modeling software *choice used during asset creation affect performance at runtime

    - by user134143
    Does software used to create 3d assets (for game development specifically) have an impact on the efficiency of the program? In other words, is it possible to reduce the operating footprint of an application merely by utilizing alternative development software during production of 3d assets? If you use two different applications to create a 3 dimensional image of a box, can one of them result in better performance if aspects of the image are identical? I am attempting to get the information I need without causing unnecessary debate over specific software choice.

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  • Map format for 3d open world

    - by Pacha
    I am making an open world 3d platformer in Ogre3D, and I have no idea on what kind of 3d map file format I should use for it. I want to make low-polygon blocky-style objects. Probably rectangles and other geometrical figures that don't have circular edges. Some of those blocks will have properties, like climbable or they might move. I was wondering what would be the best thing to do to make the map (just one level, as it is open).

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  • Hashing 3D position into 2D position

    - by notabene
    I am doing volumetric raycasting and curently working on depth jitter. I have 3D position on ray and want to sample 2D noise texture to jitter the depth. Function for converting (or hashing) 3D position to 2D have to produce absolutely different numbers for a little changes (especialy because i am sampling in texture space so sample values differs very very little) and have to be "shader-wise" - so forget about branches, cycles etc. I'm looking forward for yours nice and fast solutions.

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  • How can I achieve a 3D-like effect with spritebatch's rotation and scale parameters

    - by Alic44
    I'm working on a 2d game with a top-down perspective similar to Secret of Mana and the 2D Final Fantasy games, with one big difference being that it's an action rpg using a 3-dimensional physics engine. I'm trying to draw an aimer graphic (basically an arrow) at my characters' feet when they're aiming a ranged weapon. At first I just converted the character's aim vector to radians and passed that into spritebatch, but there was a problem. The position of every object in my world is scaled for perspective when it's drawn to the screen. So if the physics engine coordinates are (1, 0, 1), the screen coords are actually (1, .707) -- the Y and Z axis are scaled by a perspective factor of .707 and then added together to get the screen coordinates. This meant that the direction the aimer graphic pointed (thanks to its rotation value passed into spritebatch) didn't match up with the direction the projectile actually traveled over time. Things looked fine when the characters fired left, right, up, or down, but if you fired on a diagonal the perspective of the physics engine didn't match with the simplistic way I was converting the character's aim direction to a screen rotation. Ok, fast forward to now: I've got the aimer's rotation matched up with the path the projectile will actually take, which I'm doing by decomposing a transform matrix which I build from two rotation matrices (one to represent the aimer's rotation, and one to represent the camera's 45 degree rotation on the x axis). My question is, is there a way to get not just rotation from a series of matrix transformations, but to also get a Vector2 scale which would give the aimer the appearance of being a 3d object, being warped by perspective? Orthographic perspective is what I'm going for, I think. So, the aimer arrow would get longer when facing sideways, and shorter when facing north and south because of the perspective. At the same time, it would get wider when facing north and south, and less wide when facing right or left. I'd like to avoid actually drawing the aimer texture in 3d because I'm still using spritebatch's layerdepth parameter at this point in my project, and I don't want to have to figure out how to draw a 3d object within the depth sorting system I already have. I can provide code and more details if this is too vague as a question... This is my first post on stack exchange. Thanks a lot for reading! Note: (I think) I realize it can't be a technically correct 3D perspective, because the spritebatch's vector2 scaling argument doesn't allow for an object to be skewed the way it actually should be. What I'm really interested in is, is there a good way to fake the effect, or should I just drop it and not scale at all? Edit to clarify without the help of a picture (apparently I can't post them yet): I want the aimer arrow to look like it has been painted on the ground at the character's feet, so it should appear to be drawn on the ground plane (in my case the XZ plane) which should be tilted at a 45 degree angle (around the X axis) from the viewing perspective. Alex

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  • Oracle goes 3D

    - by user12652314
    Today we announced that Oracle is the 1st commercial affiliate of the Immersive Education Initiative which starts today at Boston College. So, if you have an interest in using Java, MySQL, NetBeans, Glassfish and VirtualBox technologies and deploying them on to create 3D interactive or mixed reality learning and collaboration experiences for education or business use. Then, Watch this space for more updates on this pioneering new community work on the 3D Web.

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  • Drawing flaming letters in 3D with OpenGL ES 2.0

    - by Chiquis
    I am a bit confused about how to achieve this. What I want is to "draw with flames". I have achieved this with textures successfully, but now my concern is about doing this with particles to achieve the flaming effect. Am I supposed to create a path along which I should add many particle emitters that will be emitting flame particles? I understand the concept for 2D, but for 3D are the particles always supposed to be facing the user? Something else I'm worried about is the performance hit that will occur by having that many particle emitters, because there can be many letters and drawings at the same time, and each of these elements will have many particle emitters. More detailed explanation: I have a path of points, which is my model. Imagine a dotted letter "S" for example. I want make the "S" be on fire. The "S" is just an example it can be a circle, triangle, a line, pretty much any path described by my set of points. For achieving this fire effect I thought about using particles. So I am using a program called "Particle Designer" to create a fire style particle emitter. This emitter looks perfect on 2D on the iphone screen dimensions. So then I thought that I could probably draw an S or any other figure if i place many particle emitters next to each other following the path described. To move from the 2D version to the 3D version I thought about, scaling the emitter (with a scale matrix multiplication in its model matrix) and then moving it to a point in my 3D world. I did this and it works. So now I have 1 particle emitter in the 3D world. My question is, is this how you would achieve a flaming letter? Is this too inefficient if i expect to have many flaming paths on my world? Am i supposed to rotate the particle's quad so that its always looking at the user? (the last one is because i noticed that if u look at it from the side the particles start to flatten out)

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  • Tutoriel OpenGL Moderne : billboards, incrustez des éléments 3D dans votre monde 3D en OpenGL 3 et supérieur

    Bonjour à tous,La rubrique 2D/3D/Jeux est heureuse de vous présenter la suite de la série de tutoriels consacrée à OpenGL moderne (les versions à partir d'OpenGL 3.3). Ces tutoriels vous permettront d'intégrer facilement les nouveaux concepts d'OpenGL afin de profiter au maximum des dernières technologies de vos cartes graphiques. Ce dix-huitième tutoriel vous expliquera comment afficher des billboards (des éléments 2D incrustés dans un monde 3D) en OpenGL.Bonne lecture.Voir aussiToutes les ressources...

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  • Closed-loop Recommendation Engines: Analyst Insight report on Oracle Real-Time Decisions (RTD)

    - by Mike.Hallett(at)Oracle-BI&EPM
    In November 2011, Helena Schwenk of MWD Advisors, published her analysis on Oracle Real-Time Decisions.  She summarizes as follows: "In contrast to other popular approaches to implementing predictive analytics, RTD focuses on learning from each interaction and using these insights to adjust what is presented, offered or displayed to a customer. Likewise its capabilities for optimising decisions within the context of specific business goals and a report-driven framework for assessing the performance of models and decisions make it a strong contender for organisations that want to continuously improve decision making as part of a customer experience marketing, e-commerce optimisation and operational process efficiency initiative." This is an outstanding report to share with a prospect or client as it goes into great detail about the product and its capabilities.  It also highlights the differences in Oracle's Real-Time Decisions product vs. other closed loop recommendation engines. I encourage you to share this report with your clients and prospects. It can be downloaded directly from here - MWD Advisors Vendor Profile: Oracle Real-Time Decisions. (expires in November 2012) Highlights: "At the core of RTD lies a learning engine that combines business rules and adaptive predictive models to deliver recommendations to operational systems while simultaneously learning from experiences." "While closed-loop recommendation engines are becoming more prevalent... there are a number of features that distinguish RTD: It makes its decisions in the context of the business objectives, such as maximising customer revenue or reducing service costs Its support for operational integration offers organisations some flexibility in how they implement the offering."

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  • Transferring users and search engines to a new domain

    - by eftpotrm
    I've been asked to take over the maintnance of an existing site that's being reworked. At present it's serving localised content for several languages, but via a fairly unhelpful mechanism that means essentially search engines only have it indexed in English and any deep links will de facto appear in English as well. So, new localised sites are being built under separate domains - not just for this, there's other benefits. What we're then looking to do is to redirect users correctly to the new site, where appropriate. For humans this isn't a problem. We can send them through a gateway page on their first site visit, grab their language preference and put it in a cookie, then redirect them to the new localised content as soon as it's available. For search engines, this isn't so good... In principle I'm happy to simply bypass the gateway page and redirect known spiders to the new site, but this means we're serving radically different content (different URL even!) to human and robot users. Won't this therefore be regarded as cloaking and cause us grief? Anyone know a better way to handle this?

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  • Compiz cube issues since upgrading to 12.10. The caps and 3d windows are all over the place.

    - by Slarty
    I think it's due to residual settings from the old reflection and deformation plug in. I've attempted a complete reset of the settings and still no go though. The cube caps stay black and glitch out when I spin it etc and I see multiple copies of each window. It's like it's trying to display the "inside the cube" setting and the regular just floating 3d window at the same time. Here's one example (rep isn't high enough yet for fancy img imbed, sorry) http://i.stack.imgur.com/rrbBd.jpg Any ideas? I'm trying this on my desktop which is using an NVIDIA 8800 GTS card. I also tried it on an older laptop that uses an intel card and same deal. I think maybe I can use the dconftool and try to see if there are still settings from the deformation and reflection plug in causing this. Unless someone knows how to get that back (either a beta or an old version) somehow?

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  • Ideas for extending tic-tac-toe game?

    - by pimvdb
    I'm building a 3D tic-tac-toe game and this is what I've implemented so far: 3D renderer with texture mapping Playing against the computer Playing online (multiplayer) Now I'm a little lost what I could add. Obviously, tic-tac-toe isn't that exciting or advanced, but I just miss something to salt it a little bit. Therefore, could anyone please suggest some ideas that would be worth implementing? Thanks!

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  • Drawing lines in 3D space

    - by DeadMG
    When attempting to draw a line in 3D space with D3DPT_LINELIST, then Direct3D gives me an error about an invalid vertex declaration, saying that it cannot be converted to an FVF. I am using the same vertex declaration and shader/stream setup as for my D3DPT_TRIANGLELIST rendering which works absolutely correctly. How can I use D3DPT_LINELIST to render some lines in 3D space? Edit: Oopsie, forgot my codeses. Here's my raw Draw call. D3DCALL(device->SetStreamSource(1, PerBoneBuffer.get(), 0, sizeof(PerInstanceData))); D3DCALL(device->SetStreamSourceFreq(1, D3DSTREAMSOURCE_INSTANCEDATA | 1)); D3DCALL(device->SetStreamSource(0, LineVerts, 0, sizeof(D3DXVECTOR3))); D3DCALL(device->SetStreamSourceFreq(0, D3DSTREAMSOURCE_INDEXEDDATA | lines.size())); D3DCALL(device->SetIndices(LineIndices)); PerInstanceData* data; std::vector<Wide::Render::Line*> lines_vec(lines.begin(), lines.end()); D3DCALL(PerBoneBuffer->Lock(0, lines.size() * sizeof(PerInstanceData), reinterpret_cast<void**>(&data), D3DLOCK_DISCARD)); std::for_each(lines.begin(), lines.end(), [&](Wide::Render::Line* ptr) { data->Color = D3DXColor(ptr->Colour); D3DXMATRIXA16 Translate, Scale, Rotate; D3DXMatrixTranslation(&Translate, ptr->Start.x, ptr->Start.y, ptr->Start.z); D3DXMatrixScaling(&Scale, ptr->Scale, 1, 1); D3DXMatrixRotationQuaternion(&Rotate, &D3DQuaternion(ptr->Rotation)); data->World = Scale * Rotate * Translate; }); D3DCALL(PerBoneBuffer->Unlock()); D3DCALL(device->DrawIndexedPrimitive(D3DPRIMITIVETYPE::D3DPT_LINELIST, 0, 0, 2, 0, 1)); Here's my vertex declaration: D3DVERTEXELEMENT9 BasicMeshVertices[] = { {0, 0, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_POSITION, 0}, {1, 0, D3DDECLTYPE_FLOAT4, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TEXCOORD, 0}, {1, 16, D3DDECLTYPE_FLOAT4, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TEXCOORD, 1}, {1, 32, D3DDECLTYPE_FLOAT4, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TEXCOORD, 2}, {1, 48, D3DDECLTYPE_FLOAT4, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_TEXCOORD, 3}, {1, 64, D3DDECLTYPE_FLOAT4, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_COLOR, 0}, D3DDECL_END() }; The LineIndices are just 0, 1 and the LineVerts are just {0,0,0} and {1,0,0}, to represent a unit 3D line along the X axis.

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  • Search Engines Online Business Tools For Website Marketing - 3 Free Tools to Optimise Your Website

    Search engines online business tools for website marketing are available by the thousands, if not millions. Lots of software companies have designed a whole range of different applications to help you optimise your website and marketing campaigns. When I first started with online marketing, I looked on the internet for some online tools, preferably for free. My budget was basically next to nothing but I knew that I wasn't the only one, so there had to be a solution, right? And yes, there is.

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  • Survey of MySQL Storage Engines

    <b>Database Journal:</b> "MySQL has an interesting architecture that sets it apart from some other enterprise database systems. It allows you to plug in different modules to handle storage. What that means to end users is that it is quite flexible, offering an interesting array of different storage engines with different features, strengths, and tradeoffs."

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