Comments on: Tutorial: jMonkeyEngine applet – hardware 3D in the browser http://www.streamhead.com/tutorial-jmonkeyengine-applet-hardware-3d-in-the-browser/ multimedia webapplication thoughts and experiments Fri, 19 Mar 2010 17:16:10 +0000 hourly 1 By: Alex http://www.streamhead.com/tutorial-jmonkeyengine-applet-hardware-3d-in-the-browser/comment-page-1/#comment-1334 Alex Sun, 14 Mar 2010 03:30:28 +0000 http://www.streamhead.com/?p=91#comment-1334 Works on Ubuntu 9.10 with 470 fps. But I guess I stick with flash and papervision3d and I hope hardware acceleration will soon find its way to flash. Seems like 10.1 brings gpu support to mobile devices, so I guess it's just a mater of time before it reaches our PCs. Works on Ubuntu 9.10 with 470 fps. But I guess I stick with flash and papervision3d and I hope hardware acceleration will soon find its way to flash. Seems like 10.1 brings gpu support to mobile devices, so I guess it's just a mater of time before it reaches our PCs.

]]> By: 9 of my Best Posts On Java, a Streamhead Anthology http://www.streamhead.com/tutorial-jmonkeyengine-applet-hardware-3d-in-the-browser/comment-page-1/#comment-1324 9 of my Best Posts On Java, a Streamhead Anthology Mon, 01 Mar 2010 21:08:08 +0000 http://www.streamhead.com/?p=91#comment-1324 [...] However, I believe Java applets are long overdue for a comeback. They can be used for web 2.0 business application development, but just as well for hardware 3D. Applets have had it for a long time, while Flash has only recently caught up. Check out this short tutorial on how to get started. [...] [...] However, I believe Java applets are long overdue for a comeback. They can be used for web 2.0 business application development, but just as well for hardware 3D. Applets have had it for a long time, while Flash has only recently caught up. Check out this short tutorial on how to get started. [...]

]]> By: fixbits http://www.streamhead.com/tutorial-jmonkeyengine-applet-hardware-3d-in-the-browser/comment-page-1/#comment-1275 fixbits Tue, 19 Jan 2010 21:45:53 +0000 http://www.streamhead.com/?p=91#comment-1275 Dear All, <br><br>I was able, to run the example, given above, it just works fine. I'm getting issues when trying to deploy my own applet:<br><br>19-Jan-2010 15:34:13 com.jme.system.lwjgl.LWJGLDisplaySystem <init><br>INFO: LWJGL Display System created.<br>java.lang.UnsatisfiedLinkError: no lwjgl in java.library.path<br> at java.lang.ClassLoader.loadLibrary(Unknown Source)<br> at java.lang.Runtime.loadLibrary0(Unknown Source)<br> at java.lang.System.loadLibrary(Unknown Source)<br> at org.lwjgl.Sys$1.run(Sys.java:72)<br> at java.security.AccessController.doPrivileged(Native Method)<br> at org.lwjgl.Sys.doLoadLibrary(Sys.java:65)<br> at org.lwjgl.Sys.loadLibrary(Sys.java:81)<br> at org.lwjgl.Sys.<clinit>(Sys.java:98)<br> at org.lwjgl.opengl.AWTGLCanvas.<clinit>(AWTGLCanvas.java:84)<br> at com.jmex.awt.lwjgl.LWJGLAWTCanvasConstructor.makeCanvas(LWJGLAWTCanvasConstructor.java:45)<br> at com.jmex.awt.lwjgl.LWJGLAWTCanvasConstructor.makeCanvas(LWJGLAWTCanvasConstructor.java:42)<br> at com.jme.system.lwjgl.LWJGLDisplaySystem.createCanvas(LWJGLDisplaySystem.java:212)<br> at com.jme.system.lwjgl.LWJGLDisplaySystem.createCanvas(LWJGLDisplaySystem.java:189)<br> at runner.SceneEditorDemo6b.getGlCanvas(SceneEditorDemo6b.java:213)<br> at runner.SceneEditorDemo6b.init(SceneEditorDemo6b.java:178)<br> at runner.SceneEditorDemo6b.<init>(SceneEditorDemo6b.java:115)<br> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)<br> at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)<br> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)<br> at java.lang.reflect.Constructor.newInstance(Unknown Source)<br> at java.lang.Class.newInstance0(Unknown Source)<br> at java.lang.Class.newInstance(Unknown Source)<br> at sun.applet.AppletPanel.createApplet(Unknown Source)<br> at sun.plugin.AppletViewer.createApplet(Unknown Source)<br> at sun.applet.AppletPanel.runLoader(Unknown Source)<br> at sun.applet.AppletPanel.run(Unknown Source)<br> at java.lang.Thread.run(Unknown Source)<br>java.lang.NoClassDefFoundError: Could not initialize class com.jmex.awt.lwjgl.LWJGLCanvas<br> at com.jmex.awt.lwjgl.LWJGLAWTCanvasConstructor.makeCanvas(LWJGLAWTCanvasConstructor.java:45)<br> at com.jmex.awt.lwjgl.LWJGLAWTCanvasConstructor.makeCanvas(LWJGLAWTCanvasConstructor.java:42)<br> at com.jme.system.lwjgl.LWJGLDisplaySystem.createCanvas(LWJGLDisplaySystem.java:212)<br> at com.jme.system.lwjgl.LWJGLDisplaySystem.createCanvas(LWJGLDisplaySystem.java:189)<br> at runner.SceneEditorDemo6b.getGlCanvas(SceneEditorDemo6b.java:213)<br> at runner.SceneEditorDemo6b.init(SceneEditorDemo6b.java:178)<br> at runner.SceneEditorDemo6b.<init>(SceneEditorDemo6b.java:115)<br> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)<br> at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)<br> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)<br> at java.lang.reflect.Constructor.newInstance(Unknown Source)<br> at java.lang.Class.newInstance0(Unknown Source)<br> at java.lang.Class.newInstance(Unknown Source)<br> at sun.applet.AppletPanel.createApplet(Unknown Source)<br> at sun.plugin.AppletViewer.createApplet(Unknown Source)<br> at sun.applet.AppletPanel.runLoader(Unknown Source)<br> at sun.applet.AppletPanel.run(Unknown Source)<br> at java.lang.Thread.run(Unknown Source)<br><br><br>I'm using lwjgl-applet-2.2.1, JMonkey 2.0.1, all jars beside the .html, all lowercase.<br><br>I'm using the following .html code:<br><br><script src="http://www.java.com/js/deployJava.js"></script><br> <applet code = 'runner.SceneEditorDemo6b.class'<br> archive ='lwjgl_util_applet.jar,lwjgl.jar,windows_natives.jar,natives.jar,jme.jar,jme-awt.jar,jmetest.jar,jmetest-data-images.jar,teszt.jar'<br> codebase='.'<br> width = 300<br> height = 300 /><br> <script language="JavaScript" src="/js/omi/jsc/s_code_remote.js"></script></ Dear All,

I was able, to run the example, given above, it just works fine. I'm getting issues when trying to deploy my own applet:

19-Jan-2010 15:34:13 com.jme.system.lwjgl.LWJGLDisplaySystem <init>
INFO: LWJGL Display System created.
java.lang.UnsatisfiedLinkError: no lwjgl in java.library.path
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at org.lwjgl.Sys$1.run(Sys.java:72)
at java.security.AccessController.doPrivileged(Native Method)
at org.lwjgl.Sys.doLoadLibrary(Sys.java:65)
at org.lwjgl.Sys.loadLibrary(Sys.java:81)
at org.lwjgl.Sys.<clinit>(Sys.java:98)
at org.lwjgl.opengl.AWTGLCanvas.<clinit>(AWTGLCanvas.java:84)
at com.jmex.awt.lwjgl.LWJGLAWTCanvasConstructor.makeCanvas(LWJGLAWTCanvasConstructor.java:45)
at com.jmex.awt.lwjgl.LWJGLAWTCanvasConstructor.makeCanvas(LWJGLAWTCanvasConstructor.java:42)
at com.jme.system.lwjgl.LWJGLDisplaySystem.createCanvas(LWJGLDisplaySystem.java:212)
at com.jme.system.lwjgl.LWJGLDisplaySystem.createCanvas(LWJGLDisplaySystem.java:189)
at runner.SceneEditorDemo6b.getGlCanvas(SceneEditorDemo6b.java:213)
at runner.SceneEditorDemo6b.init(SceneEditorDemo6b.java:178)
at runner.SceneEditorDemo6b.<init>(SceneEditorDemo6b.java:115)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at sun.applet.AppletPanel.createApplet(Unknown Source)
at sun.plugin.AppletViewer.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
java.lang.NoClassDefFoundError: Could not initialize class com.jmex.awt.lwjgl.LWJGLCanvas
at com.jmex.awt.lwjgl.LWJGLAWTCanvasConstructor.makeCanvas(LWJGLAWTCanvasConstructor.java:45)
at com.jmex.awt.lwjgl.LWJGLAWTCanvasConstructor.makeCanvas(LWJGLAWTCanvasConstructor.java:42)
at com.jme.system.lwjgl.LWJGLDisplaySystem.createCanvas(LWJGLDisplaySystem.java:212)
at com.jme.system.lwjgl.LWJGLDisplaySystem.createCanvas(LWJGLDisplaySystem.java:189)
at runner.SceneEditorDemo6b.getGlCanvas(SceneEditorDemo6b.java:213)
at runner.SceneEditorDemo6b.init(SceneEditorDemo6b.java:178)
at runner.SceneEditorDemo6b.<init>(SceneEditorDemo6b.java:115)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at sun.applet.AppletPanel.createApplet(Unknown Source)
at sun.plugin.AppletViewer.createApplet(Unknown Source)
at sun.applet.AppletPanel.runLoader(Unknown Source)
at sun.applet.AppletPanel.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

I'm using lwjgl-applet-2.2.1, JMonkey 2.0.1, all jars beside the .html, all lowercase.

I'm using the following .html code:

<script src=”http://www.java.com/js/deployJava.js”></script>
<applet code = 'runner.SceneEditorDemo6b.class'
archive ='lwjgl_util_applet.jar,lwjgl.jar,windows_natives.jar,natives.jar,jme.jar,jme-awt.jar,jmetest.jar,jmetest-data-images.jar,teszt.jar'
codebase='.'
width = 300
height = 300 />
<script language=”JavaScript” src=”/js/omi/jsc/s_code_remote.js”></script></

]]> By: Sterrenkijker http://www.streamhead.com/tutorial-jmonkeyengine-applet-hardware-3d-in-the-browser/comment-page-1/#comment-1207 Sterrenkijker Mon, 17 Aug 2009 06:25:04 +0000 http://www.streamhead.com/?p=91#comment-1207 I'm finally back from vacation and now I'm trying again :). <br><br>I'm doing everything locally. All jar files are in the same directory as the html page, and all lower case:<br>[code]<br>corien@Ubuntu-Corien:~/towerwarscrap/streamhead$ ls -R<br>.:<br>applet.html compileandrun.sh jme-awt.jar jmetest-data-images.jar lwjgl.jar my_jar.jar<br>applettest jme.jar jmetest.jar lwjgl_util_applet.jar natives.jar<br><br>./applettest:<br>AppletTestBoxColor.class AppletTestBoxColor.java <br>[/code]<br><br>I'm executing the following commands to compile it and get it running:<br>[code]<br>rm my_jar.jar applettest/AppletTestBoxColor.class<br>javac -classpath .:jme.jar:jme-awt.jar:jmetest-data-images.jar:jmetest.jar:lwjgl.jar:lwjgl_util_applet.jar:natives.jar applettest/AppletTestBoxColor.java<br>jar cf my_jar.jar applettest/AppletTestBoxColor.class<br>jarsigner -keystore ~/.keystore -storepass password -keypass password my_jar.jar tradeandconquer<br>jarsigner -verify -certs my_jar.jar<br>appletviewer applet.html<br>[/code]<br><br>The html page refers to the jars, I don't see where lwjgl_util_applet.jar could be missing. Where else could the configuration be wrong? <br><br>I lately tried compiling another game I've been working on a few months ago, also with lwjgl. It worked fine a few months ago, but now I can't get it started either. Maybe it has somehow to do with the configuration of my computer/the java installation, because I upgraded my computer not very long ago. Maybe I should try it on windows, but not today, it's too late now. I'm finally back from vacation and now I'm trying again :) .

I'm doing everything locally. All jar files are in the same directory as the html page, and all lower case:
[code]
corien@Ubuntu-Corien:~/towerwarscrap/streamhead$ ls -R
.:
applet.html compileandrun.sh jme-awt.jar jmetest-data-images.jar lwjgl.jar my_jar.jar
applettest jme.jar jmetest.jar lwjgl_util_applet.jar natives.jar

./applettest:
AppletTestBoxColor.class AppletTestBoxColor.java
[/code]

I'm executing the following commands to compile it and get it running:
[code]
rm my_jar.jar applettest/AppletTestBoxColor.class
javac -classpath .:jme.jar:jme-awt.jar:jmetest-data-images.jar:jmetest.jar:lwjgl.jar:lwjgl_util_applet.jar:natives.jar applettest/AppletTestBoxColor.java
jar cf my_jar.jar applettest/AppletTestBoxColor.class
jarsigner -keystore ~/.keystore -storepass password -keypass password my_jar.jar tradeandconquer
jarsigner -verify -certs my_jar.jar
appletviewer applet.html
[/code]

The html page refers to the jars, I don't see where lwjgl_util_applet.jar could be missing. Where else could the configuration be wrong?

I lately tried compiling another game I've been working on a few months ago, also with lwjgl. It worked fine a few months ago, but now I can't get it started either. Maybe it has somehow to do with the configuration of my computer/the java installation, because I upgraded my computer not very long ago. Maybe I should try it on windows, but not today, it's too late now.

]]> By: Sterrenkijker http://www.streamhead.com/tutorial-jmonkeyengine-applet-hardware-3d-in-the-browser/comment-page-1/#comment-1204 Sterrenkijker Sun, 16 Aug 2009 21:25:04 +0000 http://www.streamhead.com/?p=91#comment-1204 I'm finally back from vacation and now I'm trying again :). <br><br>I'm doing everything locally. All jar files are in the same directory as the html page, and all lower case:<br>[code]<br>corien@Ubuntu-Corien:~/towerwarscrap/streamhead$ ls -R<br>.:<br>applet.html compileandrun.sh jme-awt.jar jmetest-data-images.jar lwjgl.jar my_jar.jar<br>applettest jme.jar jmetest.jar lwjgl_util_applet.jar natives.jar<br><br>./applettest:<br>AppletTestBoxColor.class AppletTestBoxColor.java <br>[/code]<br><br>I'm executing the following commands to compile it and get it running:<br>[code]<br>rm my_jar.jar applettest/AppletTestBoxColor.class<br>javac -classpath .:jme.jar:jme-awt.jar:jmetest-data-images.jar:jmetest.jar:lwjgl.jar:lwjgl_util_applet.jar:natives.jar applettest/AppletTestBoxColor.java<br>jar cf my_jar.jar applettest/AppletTestBoxColor.class<br>jarsigner -keystore ~/.keystore -storepass password -keypass password my_jar.jar tradeandconquer<br>jarsigner -verify -certs my_jar.jar<br>appletviewer applet.html<br>[/code]<br><br>The html page refers to the jars, I don't see where lwjgl_util_applet.jar could be missing. Where else could the configuration be wrong? <br><br>I lately tried compiling another game I've been working on a few months ago, also with lwjgl. It worked fine a few months ago, but now I can't get it started either. Maybe it has somehow to do with the configuration of my computer/the java installation, because I upgraded my computer not very long ago. Maybe I should try it on windows, but not today, it's too late now. I'm finally back from vacation and now I'm trying again :) .

I'm doing everything locally. All jar files are in the same directory as the html page, and all lower case:
[code]
corien@Ubuntu-Corien:~/towerwarscrap/streamhead$ ls -R
.:
applet.html compileandrun.sh jme-awt.jar jmetest-data-images.jar lwjgl.jar my_jar.jar
applettest jme.jar jmetest.jar lwjgl_util_applet.jar natives.jar

./applettest:
AppletTestBoxColor.class AppletTestBoxColor.java
[/code]

I'm executing the following commands to compile it and get it running:
[code]
rm my_jar.jar applettest/AppletTestBoxColor.class
javac -classpath .:jme.jar:jme-awt.jar:jmetest-data-images.jar:jmetest.jar:lwjgl.jar:lwjgl_util_applet.jar:natives.jar applettest/AppletTestBoxColor.java
jar cf my_jar.jar applettest/AppletTestBoxColor.class
jarsigner -keystore ~/.keystore -storepass password -keypass password my_jar.jar tradeandconquer
jarsigner -verify -certs my_jar.jar
appletviewer applet.html
[/code]

The html page refers to the jars, I don't see where lwjgl_util_applet.jar could be missing. Where else could the configuration be wrong?

I lately tried compiling another game I've been working on a few months ago, also with lwjgl. It worked fine a few months ago, but now I can't get it started either. Maybe it has somehow to do with the configuration of my computer/the java installation, because I upgraded my computer not very long ago. Maybe I should try it on windows, but not today, it's too late now.

]]> By: Peter Backx http://www.streamhead.com/tutorial-jmonkeyengine-applet-hardware-3d-in-the-browser/comment-page-1/#comment-1201 Peter Backx Tue, 28 Jul 2009 09:56:34 +0000 http://www.streamhead.com/?p=91#comment-1201 This looks like a classpath issue. The applet code seems fine, but maybe the applet cannot load the archives. Are you trying this locally or on a server? Did you put all the .jar files in the same directory as the html page? Are they all lower case?<br><br>The issue you're having is usually caused by some small error in the configuration, but it's not always easy to find. This looks like a classpath issue. The applet code seems fine, but maybe the applet cannot load the archives. Are you trying this locally or on a server? Did you put all the .jar files in the same directory as the html page? Are they all lower case?

The issue you're having is usually caused by some small error in the configuration, but it's not always easy to find.

]]> By: Sterrenkijker http://www.streamhead.com/tutorial-jmonkeyengine-applet-hardware-3d-in-the-browser/comment-page-1/#comment-1197 Sterrenkijker Tue, 14 Jul 2009 14:08:20 +0000 http://www.streamhead.com/?p=91#comment-1197 I tried to get it compiled and run, but it didn't run: <br>java.lang.NoClassDefFoundError: org/lwjgl/util/applet/LWJGLInstaller<br> at com.jme.system.lwjgl.LWJGLSystemProvider.installLibs(Unknown Source)<br> at com.jmex.awt.applet.SimpleJMEApplet.init(Unknown Source)<br> at sun.applet.AppletPanel.run(AppletPanel.java:380)<br> at java.lang.Thread.run(Thread.java:595)<br><br>This is my html code:<br><applet code="applettest.AppletTestBoxColor" <br> archive=”lwjgl_util_applet.jar,lwjgl.jar,natives.jar,jme.jar,jme-awt.jar,jmetest.jar,jmetest-data-images.jar,my_jar.jar” width="800" height="600"> <br> <param name="useAppletCanvasSize" value="true"/> </applet> <br><br>the lwjgl_util_applet.jar that contains the missing file is in the same directory as all the other jars, I don't really see the problem. <br><br><br>The applet you compiled works fine by the way :), I tried it on two different computers, both running ubuntu linux with firefox, one java 1.5 and the other java6. I tried to get it compiled and run, but it didn't run:
java.lang.NoClassDefFoundError: org/lwjgl/util/applet/LWJGLInstaller
at com.jme.system.lwjgl.LWJGLSystemProvider.installLibs(Unknown Source)
at com.jmex.awt.applet.SimpleJMEApplet.init(Unknown Source)
at sun.applet.AppletPanel.run(AppletPanel.java:380)
at java.lang.Thread.run(Thread.java:595)

This is my html code:
<applet code=”applettest.AppletTestBoxColor”
archive=”lwjgl_util_applet.jar,lwjgl.jar,natives.jar,jme.jar,jme-awt.jar,jmetest.jar,jmetest-data-images.jar,my_jar.jar” width=”800″ height=”600″>
<param name=”useAppletCanvasSize” value=”true”/> </applet>

the lwjgl_util_applet.jar that contains the missing file is in the same directory as all the other jars, I don't really see the problem.

The applet you compiled works fine by the way :) , I tried it on two different computers, both running ubuntu linux with firefox, one java 1.5 and the other java6.

]]> By: Chris http://www.streamhead.com/tutorial-jmonkeyengine-applet-hardware-3d-in-the-browser/comment-page-1/#comment-1191 Chris Tue, 23 Jun 2009 08:55:39 +0000 http://www.streamhead.com/?p=91#comment-1191 works great for me on mac osx. i get 470 fps apparently works great for me on mac osx. i get 470 fps apparently

]]> By: Peter Backx http://www.streamhead.com/tutorial-jmonkeyengine-applet-hardware-3d-in-the-browser/comment-page-1/#comment-1130 Peter Backx Fri, 20 Feb 2009 12:25:39 +0000 http://www.streamhead.com/?p=91#comment-1130 I proposed a few solutions to, but I'm not sure if any of them worked.<br>First and foremost, I would suggest you to upgrade to the latest version of the JVM. Version 1.6u10 or higher offer many advantages over the previous ones. That might already solve your problem, if not, please let me know and I'll look into it. I proposed a few solutions to, but I'm not sure if any of them worked.
First and foremost, I would suggest you to upgrade to the latest version of the JVM. Version 1.6u10 or higher offer many advantages over the previous ones. That might already solve your problem, if not, please let me know and I'll look into it.

]]> By: AsceticMonk http://www.streamhead.com/tutorial-jmonkeyengine-applet-hardware-3d-in-the-browser/comment-page-1/#comment-1129 AsceticMonk Wed, 18 Feb 2009 21:44:58 +0000 http://www.streamhead.com/?p=91#comment-1129 I am having the same problem of Dany McCoy. It seems Java cannot find the native dll files during runtime. Anyone knows a solution for this problem? I am having the same problem of Dany McCoy. It seems Java cannot find the native dll files during runtime. Anyone knows a solution for this problem?

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