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• D, Vala or Go for game development [on hold]

  - by Sheosi

  I'm looking forward to choose some compiled language for my 3D engine. The engine it's written in C++, however I would like to help coders by using a language which is good for games. I came with these three: Vala, D and Go. The engine is being made to write as less code as posible, also the "main" language it's going to be Lua so any of these will be the "advanced" one (mainly things which could affect performance or . Because of all this and the fact that I heard that Go is good for small projects I thought it would be a pretty good option, however it does not seems to be made (at least originally) for games and also some say I can have trouble with garbage collection in games. So what do you think? Do you have any experience with any of these three in games? How was it?

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• SDL to SFML simple question

  - by ultifinitus

  Hey! I've been working on a game in c++ for about a week and a half, and I've been using SDL. However, my current engine only needs the following from whatever library I use: enable double buffering load an image from path into something that I can apply to the screen apply an image to the screen with a certain x,y enable transparency on an image (possibly) image clipping, for sprite sheets. I am fairly sure that SFML has all of this functionality, I'm just not positive. Will someone confirm my suspicions? Also I have one or two questions regarding SFML itself. Do I have to do anything to enable hardware accelerated rendering? How quick is SFML at blending alpha values? (sorry for the less than intelligent question!)

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• Can't install fglrx on Kernel 3.11.0-12

  - by byf-ferdy

  I'm running Ubuntu Gnome 13.10 on a Sony Vaio laptop. I tried to install the newest fglrx driver from the cchtml.com guide but no matter which version I use (13.4 or even 13.9) the installation of the generated .debs fails with this message: Error! Bad return status for module build on kernel: 3.11.0-12-generic (x86_64) This seems to be a confirmed bug on launchpad. Currently I'm running the Radeon SI driver but I really need some 3D acceleration. What is there I can do to install any version of fglrx correctly or to speed up the bug-fixing-process? How long does the fixing of these bugs usually take?

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• HD flash video lagging on LG R400

  - by dhojgaard

  I'm installing Ubuntu on my friends laptop. An LG R400 with ATI Mobility Radeon X2300 graphics drivers. On Windows Vista which runs pretty slow the HD flash videos 1080p on Youtube vimeo and other places work with no problems, but on Ubuntu i can not really play videos above 480p Above that they are lagging. That annoys me because i know he will use them, and how am i supposed to convince him that Ubuntu is the way to go if it can not play the videos that windows vista can? Unity 3d is working fine so i think the graphics drivers is working, and when i download the hd videos and play as mp4 in vlc they also work fine. lspci -nn | grep VGA shows the following: 01:00.0 VGA compatible controller [0300]: Advanced Micro Devices [AMD] nee ATI Mobility Radeon X2300 Hope that someone can help me convince my friend that Ubuntu is rocking!

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• AABB > AABB collision response?

  - by Levi

  I'm really confused about how to fix this in 3d? I want it so that I can slide along cubes but without getting caught if there's 2 adjacent cubes. I've gotten it so that I can do x collision, with sliding, and y, and z, but I can't do them together, probably because I don't know how to resolve it correctly. e.g. [] [] []^ []O [] O is the player, ^ is the direction the player is moving, with the methods which I was trying I would get stuck between the cubes because the z axis was responding and kicking me out :/. I don't know how to resolve this in all 3 direction, like how would I go about telling which direction I have to resolve in. My previous methods involved me checking 4 points in a axis aligned square around the player, I was checking if these points where inside the cubes and if they where fixing my position, but I couldn't get it working correctly. Help is appreciated. edit: pretend all the blocks are touching.

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• Obtaining In game Warcraft III data to program standalone AI

  - by Slav

  I am implementing common purpose behavioral algorithm and would like to test it under my lovely Warcraft III game and watch how it will fight against real players. The problem is how to obtain information about in game state (units, structures, environment, etc. ). Algorithm needs access to hard drive and possibly distributed computing, that's why JASS (WC3 Editor language) usage doesn't solve the issue. Direct 3D hooking is an approach, but it wasn't done for WC3 yet and significant drawback is inability to watch online at how AI performs since it uses the viewport to issue commands. How in game data can be obtained to a different process in a fastest and easiest way? Thank you.

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• Windows 8, très orienté jeux ? Les rumeurs se succèdent sur le futur OS de Microsoft

  Windows 8 très orienté jeux Les rumeurs se succèdent sur le futur OS de Microsoft Mise à jour du 27/12/10, par Hinault Romaric Les rumeurs continuent concernant Windows 8, le futur OS de Microsoft en cours de développement. Après une rumeur sur l'intégration du bureau 3D et de l'orientation du système d'exploitation vers le « Desktop as service » (lire ci-avant), une nouvelle rumeur vient d'apparaitre et fait état d'une orientation très jeux. Windows 8 mettrait donc l'accent sur le support des nouveaux jeux PC et serait même un élément clé de sa promotion auprès du grand public. Une rumeur qui pour...

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• Google I/O 2010 - Tips and tricks for Google Earth API and KML

  Google I/O 2010 - Tips and tricks for Google Earth API and KML Google I/O 2010 - Mapping in 3D: Tips and tricks for Google Earth API and KML Geo 201 Josh Livni, Mano Marks Google Earth and the Earth API can handle a tremendous amount of data. But you always have more. We will talk about integrating large datasets efficiently, coding for optimal performance, and taking advantage of advanced features in KML and the Earth API. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 14 0 ratings Time: 01:01:18 More in Science & Technology

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• Bloom shader makes it impossible to render black?

  - by Mathias Lykkegaard Lorenzen

  I am playing around with the bloom shader from the XNA sample page, to do some glow shading. I am rendering primitive vector-ish squares of linelists/linestrips, on a background. However, I am facing a few problems. With a black background and white squares, I can actually see the squares. However, with a white background and black squares, I can't see them at all. Why is this happening, and is there any way of me fixing it? Can I modify my bloom shader to also "glow" dark elements, if that's what is causing it?

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• Compiz stop working

  - by Aikanáro

  I'm on a laptop sony vaio, vng-nw330f with ubuntu 11.10. One day I used my computer normally, I shutdown and the other day when I turn on it again, all was different. Compiz effects is not working at all, it doesn't matter what plugin (from ccsm) i enable or disable, nothings happens, nothings changes. I tried next commands: unity --reset unity --reset-icons sudo rm -rf .config .gnome .gnome2 .gnome2_private .compiz .icons .fonts .nautilus .themes .qt .local (from my home directory) gconftool-2 --recursive-unset /apps/compiz-1 I try reinstalling compiz (I remove compiz from software center and installed it again). I have just a couple of weeks using ubuntu, I'm not sure if exist a desktop call it unity 3d, but I think that it's missing. I want the graphics interface of ubuntu 11.10 by default.

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• How do I approach large companies if I have a killer mobile game idea?

  - by Balázs Dávid

  I have an idea for a game that has potential, but I'm not a programmer. How do I tell this to development companies without having my idea stolen? All I want from the company is for somebody to watch a three minute long video presentation about my idea and if they see potential in it then we can talk about the details. I have already sent an e-mail to several big companies that have the expertise needed to code the game, they haven't answered me. Actually the idea is nothing fancy, no 3D, but fun and unique.

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• How do I remove Nvidia drivers and revert to nouveau (12.04)?

  - by Zark

  I'd like to give the new nouveau drivers a try. When I try a Ubuntu live distro, they work pretty flawlessly, but I don't seem to be able to use them correctly on my installed system. What I do is remove Nvidia drivers from the Additional drivers utility and reboot, but what I get is no 3D acceleration and low resolution on my monitor. What am I doing wrong? I wonder if I might have broken something when I messed up with grub trying to fix the infamous plymouth splash screen... Thanks for your support

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• Homemaking a 2d soft body physics engine

  - by Griffin

  hey so I've decided to Code my own 2D soft-body physics engine in C++ since apparently none exist and I'm starting only with a general idea/understanding on how physics work and could be simulated: by giving points and connections between points properties such as elasticity, density, mass, shape retention, friction, stickiness, etc. What I want is a starting point: resources and helpful examples/sites that could give me the specifics needed to actually make this such as equations and required physics knowledge. It would be great if anyone out there also would give me their attempts or ideas. finally I was wondering if it was possible to... use the source code of an existing 3D engine such as Bullet and transform it to be 2D based? use the source code of a 2D Rigid body physics engine such as box2d as a starting point?

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• Cannot compute wNear and wFar from projection matrix

  - by DeadMG

  I've got the following error from Direct3D when attempting to render in 3D: Direct3D9: (WARN) :Cannot compute WNear and WFar from the supplied projection matrix Direct3D9: (WARN) :Setting wNear to 0.0 and wFar to 1.0 My projection matrix is as follows: D3DXMatrixPerspectiveFovLH( &Projection, D3DXToRadian(90), (float)GetDimensions().x / (float)GetDimensions().y, NearPlane, FarPlane ); D3DCALL(device->SetTransform( D3DTS_PROJECTION, &Projection )); The NearPlane is 0.1f, the FarPlane is 40.0f, and the dimensions are 1920x1018. This code was working earlier but I appear to have broken it, and I'm not sure where the fault is. Previously I've only encountered it if NearPlane was 0, and Google hasn't suggested any other causes either. Any suggestions?

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• Better drivers for SiS 650/740 integrated video?

  - by Bart van Heukelom

  I installed Xubuntu 10.10 on an old box today and the graphical performance is horrid. According to lspci, the video card is this: 01:00.0 VGA compatible controller: Silicon Integrated Systems [SiS] 65x/M650/740 PCI/AGP VGA Display Adapter (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Device 8081 Flags: 66MHz, medium devsel, IRQ 11 BIST result: 00 Memory at f0000000 (32-bit, prefetchable) [size=128M] Memory at e7800000 (32-bit, non-prefetchable) [size=128K] I/O ports at d800 [size=128] Expansion ROM at <unassigned> [disabled] Capabilities: <access denied> Kernel modules: sisfb Is there a way to make it faster? Alternative drivers? The additional drivers tool shows nothing. I'm specifically interested in improving Java's Java2D rendering speed, because I'll be running a "stat screen" written in that language on it.

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• Runescape Private Server - How does it work?

  - by Friend of Kim

  I've seen a lot of Runescape private servers lately. How do they work? Most of them are based on the old Runescape, but a few look exactly like the real Runescape. How do they make the servers? Has the source code of the game been leaked on several occasions, and is that used to make Runescape servers? Or have some people just replicated Runescape, and tried to make the same game themselves (and "stolen" the 3D objects and texture from Jagex to make it look the same, and written the code to be able to replicate most functions of Runescape)?

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• Intel NUC Video Blur

  - by donopj2

  I recently purchased the D34010WYKH NUC and I figured this would be a great time to make the jump to a Linux based system. I'm running Ubuntu 14.04, and I'm having an issue with video rendering that is driving me mad. Essentially videos (all 1080p mkv files) appear to be slowly blurring, and its most noticeable when the camera remains on a scene for a long period of time. Then all of a sudden the video will correct the blur and the image will be sharp, only to begin happening again followed by more sudden and noticeable corrections. I have seen the exact same issue in both VLC and XBMC and across several different videos. I have installed the latest Intel graphics drivers, and searched the web but to be honest I'm not sure how to accurately describe this problem. I'm also quite new to the OS, so my experience tinkering is limited. Has anyone experienced this type of issue before? Can it be resolved?

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• How important is Programming for a Level Designer?

  - by WryGrin

  I'm currently attending school in a Level Design program, and I was wondering how important programming really is in being a Level Designer? I'm apparently incapable of learning programming (despite my best efforts), and tend to do very well in all other courses 3D modelling, story/character design, narrative and dialogue writing, environmental and conceptual design etc. I'm wondering if my strengths in the other areas are enough (with practice) to let me become a Level Designer, or I'm wasting my time if I can't program? I really want to be a Designer, but I just can't seem to wrap my head around the "language" of programming in general (Java kicks my teeth in even with tutoring and additional work on my own).

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• Migration from XNA to SharpDX

  - by Wouter

  My fear is that XNA has reached the end of the road. To keep up with the latest technology a shift to another game framework might be needed. We have many games in a large codebase, all based on XNA. My question is, how much work would it be to migrate to SharpDX and are there other possibilities? Our code base mainly uses basic 3D rendering and the SpriteBatch, no fancy shader stuff. Update: I should have mentioned we only use 2.5D, we have a simple engine that builds textured quads to render text and animated sprites. Also for sound we use XACT (what else..) with some effects.

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• Supertuxkart not able to start

  - by subeh.sharma

  Was working fine before i played around with NVIDIA drivers and ended up with this problem. I tried running it through the terminal and i see these messages: subsharm@subsharm-ThinkPad-T61:~$ supertuxkart Irrlicht Engine version 1.7.2 Linux 3.0.0-15-generic #25-Ubuntu SMP Mon Jan 2 17:44:42 UTC 2012 x86_64 [FileManager] Data files will be fetched from: '/usr/share/games/supertuxkart/' [IrrDriver] Creating NULL device Irrlicht Engine version 1.7.2 Linux 3.0.0-15-generic #25-Ubuntu SMP Mon Jan 2 17:44:42 UTC 2012 x86_64 [IrrDriver] Trying OpenGL rendering. [IrrDriver] Tring to create device with 32 bits Xlib: extension "GLX" missing on display ":0.0". [IrrDriver Temp Logger] Level 1: No GLX support available. OpenGL driver will not work. [IrrDriver Temp Logger] Level 2: Fatal error, could not get visual. Segmentation fault subsharm@subsharm-ThinkPad-T61:~$ sudo Xorg -configure [sudo] password for subsharm: Fatal server error: Server is already active for display 0 If this server is no longer running, remove /tmp/.X0-lock and start again.

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• Problem using glm::lookat

  - by omikun

  I am trying to rotate a sprite so it is always facing a 3D camera. Object GLfloat vertexData[] = { // X Y Z U V 0.0f, 0.8f, 0.0f, 0.5f, 1.0f, -0.8f,-0.8f, 0.0f, 0.0f, 0.0f, 0.8f,-0.8f, 0.0f, 1.0f, 0.0f, }; Per frame transform glm::mat4 newTransform = glm::lookAt(glm::vec3(0), gCamera.position(), gCamera.up()); shaders->setUniform("camera", gCamera.matrix()); shaders->setUniform("model", newTransform); In the vertex shader: gl_Position = camera * model * vec4(vert, 1); The object will track the camera if I move the camera up or down, but if I move the camera left/right (spin the camera around the object's y axis), it will rotate in the other direction so I end up seeing its front twice and its back twice as I rotate around it 360. If I use -gCamera.up() instead, it would track the camera side to side, but spin the opposite direction when I move the camera up/down. What am I doing wrong?

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• Suitable Ubuntu distribution

  - by Dr AMD

  I need help choosing a suitable distrbution for my PC. I am using an HP d530 CMT with: ?• CPU Type: Intel Pentium 4, 3000 MHz (15 x 200) ?• Motherboard Chipset: Intel Springdale-G i865G ?• System Memory: 1015 MB (PC3200 DDR SDRAM) ?• Video Adapter: Intel(R) 82865G Graphics Controller (96 MB) ?• 3D Accelerator: Intel Extreme Graphics 2 ?• Audio Adapter: Analog Devices AD1981B(L) @ Intel 82801EB ICH5 - AC'97 Audio Controller ?• Network Adapter: Broadcom NetXtreme Gigabit Ethernet I have tried to install Ubuntu 13.10 and 12.04 LTS. Everything is OK on Ubuntu 12.04 except, that the video card was not recognized and the media player, YouTube,etc. did not work properly.

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• Can anyone tell me why Gnome 3 looks like as if it were a gnome fallback session in my virtualbox?

  - by Elysium

  For some reason Gnome 3 wont work in my virtualbox. Both gnome classic and gnome look exactly identical. The version of my virtualbox is: 4.1.2_ Ubuntu r38459 The 3D acceleration is on in the virtualbox and the Guest Additions is installed in the virtualbox from the software center. Obviously, the graphic card driver is installed on the main Ubuntu system I am using with my laptop. (although the post-release updates can't be installed for whatever reason) Gnome shell is installed from the software center in the virtualbox. Now the issue is that the gnome and gnome classic look like just the same. Here is an image of what gnome looks like (so does gnome classic too....so I am only posting one image): What causes this issue? By the way....I am using Ubuntu 11.10 with gnome fallback session.

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• Trying to setup first DirectX project (don't understand the error) [on hold]

  - by user1157885

  I've just started learning DirectX with the book "3D Game Programming with DirectX". I just finished setting up all the paths and adding the code to the project which I think I did correctly, but I get this massive error which I don't really understand and is hard to google. Could someone tell me what it means and how to fix it? Error 1 error TRK0002: Failed to execute command: ""C:\Program Files (x86)\Microsoft DirectX SDK (June 2010)\Utilities\bin\x64\fxc.exe" /nologo /Emain /Fo "C:\Desktop\DirectX 11 Projects\box\Win32Project2\Debug\color.cso" /Od /Zi "....\Book Files\3DGameProg\DVD\Code\Chapter 6 Drawing in Direct3D\Box\FX\color.fx"". The handle is invalid.

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• Do employers prefer software engineering over CS majors?

  - by Joey Green

  I'm in grad school at a university that was one of the first to have a software engineering accredited program. My undergrad is in CS. An employer recently recruited at our university and hired 5 SE majors. None of them were CS. Do employers prefer software engineering majors? The reason I ask is because I can focus on many different areas during my graduate studies and really want to take the classes that will help me land a great job. Right now I'm either going to use CUDA and parallelize an advanced ray-tracer for a graduate project or do research on non-photo-realistic rendering in augmented reality. Pursuing these would leave very little SE classes in my schedule. If I went the software engineering route, I would probably either do research into data-oriented programming or software design complexity. Sometimes I think when I'm 40 and look back will it matter at all? For some reason I'm thinking not.

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