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jPCT - a 3d engine for Java => Support => Topic started by: mogli on June 28, 2006, 05:18:14 pm
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sorry, i don't find the right topic for my problem.
i port my applet to an java application for a "download" version or webstart (testing phase for me ;) )
the problem is that the application should work on pcs in my company and users haven't the permission to install a newer graphics-driver. ;)
i got the following exception when stating the application on the companys pc when switching to hardware renderer.
default mode: sun.awt.Win32GraphicsConfig@77a7f9[dev=Win32GraphicsDevice[screen=
0],pixfmt=0]
org.lwjgl.LWJGLException: Could not find a valid pixel format
at org.lwjgl.opengl.Win32PeerInfo.nChoosePixelFormat(Native Method)
at org.lwjgl.opengl.Win32PeerInfo.choosePixelFormat(Win32PeerInfo.java:5
2)
at org.lwjgl.opengl.Win32DisplayPeerInfo.<init>(Win32DisplayPeerInfo.jav
a:50)
at org.lwjgl.opengl.Win32Display.createPeerInfo(Win32Display.java:93)
at org.lwjgl.opengl.Display.create(Display.java:656)
at org.lwjgl.opengl.Display.create(Display.java:632)
at com.threed.jpct.GLHelper.init(Unknown Source)
at com.threed.jpct.GLRenderer.init(Unknown Source)
at com.threed.jpct.FrameBuffer.enableRenderer(Unknown Source)
videomodes are listed when using VideoMode v[] = buffer.getVideoModes(IRenderer.RENDERER_OPENGL);
is it possible to download a newer opengl32.dll or something like that? in the systems32 is placed a opengl32.dll.
i don't really know if the driver version is the problem or it is another prob. could be nice if someone could help me.
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To get updated OpenGL, you've to update the drivers. There's no other way. If that helps with your particular problem depends on what hardware/driver combo you currently have. Which graphics card/chip is that and are you using the default Windows drivers (which don't offer hardware accelerated OpenGL) or drivers from the vendor of the card/chip?
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it is a intel card. now, i'm at home. to tell the exact one i have to look tomorrow.
i think this is the default driver from windows. i tried to install the driver from vendor but i haven't the permission to do this.
perhaps, is there another way to use the driver by loading the driver at my one with my app?
edit: i downloaded the driver-package from intel. i found inside two dlls that are the libs for opengl (iglicd32.dll, igldev32.dll). is there a possible way to use these libs with my app? is it enough to place it also in the lib-dir where the wljgl are located?
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edit: i downloaded the driver-package from intel. i found inside two dlls that are the libs for opengl (iglicd32.dll, igldev32.dll). is there a possible way to use these libs with my app? is it enough to place it also in the lib-dir where the wljgl are located?
I have no idea. But i doubt it, because they'll most likely access the other driver dlls too, which are a different version then.
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hmm, don't work. i think there must be an entry in registry for these libs. :(
the card is a 82865g from intel. full 2d/3d hw acceleration is supported.
the application must be presented on a pc with newest driver and if they enjoy it they have to give the orders to it departement to install the drivers on all employee-pcs ;)
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lwjgl is a java implementation of Open GL wich is natively written in C. Your video card have a driver that can be compatible or not with Open GL. But it doens mean that the dlls of your video card are the same then the lwjgl ones.
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i don't really know what you want to say me with this...sry.
i know that lwjgl is an implementation of opengl but for hardwarerenderer it has tu use the openldriver or interface from the vendor, isn't it?
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lwjgl uses the dll file to use the OGL. the dlls of the driver arent usefull for you because I dont hink that lwjgl comunicates directly with the video card dlls.
I guess that you must tell them to install the newest drivers, on their PCs.
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lwjgl uses the dll file to use the OGL. the dlls of the driver arent usefull for you because I dont hink that lwjgl comunicates directly with the video card dlls.
Not directly but with the Opengl.dll in system32, which itself accesses the video card's drivers. OpenGL is a client/server concept. The opengl32.dll is the client, the video card's driver is the server.
@mogli: Are you sure that this is caused by the drivers and not by a too optimistic video mode selection on your side? I'm using a 82845G based machine here at work with quite recent drivers. It should behave similar, so if you can offer you application for download, i can test it on this machine. Maybe that helps!?
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On the University There are P4 3.0 Ghz with intel 915 boards, and I cant run my jpct apps there (same exception). Maybe there are installed the drivers that windows installed by itself. I had the same problem on my laptop, it has a GeForce 2 GO and couldnt run my open GL programs there (same exception) until I downloaded newer drivers.
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I got the same exception on some computers at my university. I remarked that they didn t support direct rendering (was on linux... i used "glxinfo" to get this information if i remember correctly). I asked my support to change the driver and it worked well after that. So try to find a more recent driver for the videocard
Manu