Exception when setting anti alias samples in canvas mode

Troubleshooting graphics
1

Hi guys, I’m getting the following exception after updating my JME today. Note that I haven’t updated my JME for a month or two:



[java]Aug 30, 2011 1:49:42 AM com.jme3.app.Application handleError

SEVERE: Failed to initialize OpenGL context

org.lwjgl.LWJGLException: Failed to find ARB pixel format 1 0



at org.lwjgl.opengl.WindowsPbufferPeerInfo.nCreate(Native Method)

at org.lwjgl.opengl.WindowsPbufferPeerInfo.<init>(WindowsPbufferPeerInfo.java:47)

at org.lwjgl.opengl.WindowsDisplay.createPbuffer(WindowsDisplay.java:619)

at org.lwjgl.opengl.Pbuffer.createPbuffer(Pbuffer.java:234)

at org.lwjgl.opengl.Pbuffer.<init>(Pbuffer.java:219)

at org.lwjgl.opengl.Pbuffer.<init>(Pbuffer.java:190)

at org.lwjgl.opengl.Pbuffer.<init>(Pbuffer.java:166)

at com.jme3.system.lwjgl.LwjglCanvas.makePbufferAvailable(LwjglCanvas.java:272)

at com.jme3.system.lwjgl.LwjglCanvas.createContext(LwjglCanvas.java:339)

at com.jme3.system.lwjgl.LwjglAbstractDisplay.initInThread(LwjglAbstractDisplay.java:108)

at com.jme3.system.lwjgl.LwjglAbstractDisplay.run(LwjglAbstractDisplay.java:200)

at java.lang.Thread.run(Thread.java:662)[/java]



This only occurs when I attempt to set the sample rate in the settings higher than 1

[java]

// Create JME settings and apply them

settings = new AppSettings(true);

settings.setWidth(640); // render width (will be overridden)

settings.setHeight(480); // render height (will be overridden)

settings.setBitsPerPixel(32);



settings.setSamples(4); // No error when commented out



scene.setSettings(settings);

scene.setPauseOnLostFocus(false);

scene.setShowSettings(false);



// create the canvas

scene.createCanvas();

ctx = (JmeCanvasContext) scene.getContext();

ctx.setSystemListener(scene);

add(ctx.getCanvas());



// Tell application to do canvas magic

scene.startCanvas(true); // Explosion! :open_mouth: noooooo

[/java]



Previous to updating, I could set the samples to 4 with no problems.

Video Card: Nvidia GTX 280

Driver: 8.17.0012.6724



Any ideas what is happening? My stuff has become all aliased :frowning:

2

I should mention that this is only the case when rendering in canvas mode.

Running TestSafeCanvas and setting the sample rate to 4 will break.

Running TestManyLights and setting the sample rate to 4 (through the JME popup settings window) will run just fine.



EDIT::

Everything is working fine on my laptop (ATI card). And I tried updated my nVidia drivers on my PC but they are failing to install. Perhaps this is all on my end with broken drivers

3

im not sure, but maybe you can try the FXAA filter and see if that works:

http://hub.jmonkeyengine.org/groups/development-discussion-jme3/forum/topic/fxaa-rules-ok/?topic_page=1&num=15

4

Whoa mama, excellent! That will work just fine, thanks wez :slight_smile: