Folgender Code aus einem JOGL-Tutorial soll einen texturierten rotierenden Würfel zeigen. Das Tutorial 1:1 übernommen funktioniert super, aber sobald ich den Code in meine eigene Anwendung einfüge bekomme ich einen Fehler, der mir rein garnichts sagt:
ZitatAlles anzeigen
Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: Illegally formatted version identifier: "null"
at com.sun.opengl.impl.FunctionAvailabilityCache$Version.<init>(FunctionAvailabilityCache.java:354)
at com.sun.opengl.impl.FunctionAvailabilityCache.initAvailableExtensions(FunctionAvailabilityCache.java:133)
at com.sun.opengl.impl.FunctionAvailabilityCache.isExtensionAvailable(FunctionAvailabilityCache.java:104)
at com.sun.opengl.impl.GLContextImpl.isExtensionAvailable(GLContextImpl.java:351)
at com.sun.opengl.impl.GLImpl.isExtensionAvailable(GLImpl.java:30493)
at com.sun.opengl.impl.GLImpl.initBufferObjectExtensionChecks(GLImpl.java:30638)
at com.sun.opengl.impl.GLImpl.checkUnpackPBODisabled(GLImpl.java:30673)
at com.sun.opengl.impl.GLImpl.glTexImage2D(GLImpl.java:21145)
at renderplugins.tunnel.RenderPlugin_Tunnel.makeRGBTexture(RenderPlugin_Tunnel.java:169)
at renderplugins.tunnel.RenderPlugin_Tunnel.setupScene(RenderPlugin_Tunnel.java:46)
at midilive.Renderer.loadRenderPlugin(Renderer.java:83)
at midilive.Main.loadRenderPreset(Main.java:169)
at midilive.MainFrameOptions.jTable1MouseClicked(MainFrameOptions.java:248)
at midilive.MainFrameOptions.access$200(MainFrameOptions.java:18)
at midilive.MainFrameOptions$5.mouseClicked(MainFrameOptions.java:160)
at java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:253)
at java.awt.Component.processMouseEvent(Component.java:6044)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3265)
at java.awt.Component.processEvent(Component.java:5806)
at java.awt.Container.processEvent(Container.java:2058)
at java.awt.Component.dispatchEventImpl(Component.java:4413)
at java.awt.Container.dispatchEventImpl(Container.java:2116)
at java.awt.Component.dispatchEvent(Component.java:4243)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3995)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
at java.awt.Container.dispatchEventImpl(Container.java:2102)
at java.awt.Window.dispatchEventImpl(Window.java:2440)
at java.awt.Component.dispatchEvent(Component.java:4243)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
Caused by: java.lang.NullPointerException
at com.sun.opengl.impl.FunctionAvailabilityCache$Version.<init>(FunctionAvailabilityCache.java:309)
... 35 more
Der Code: (der Fehler passiert in der letzten Befehlszeile, also bei gl.glTexImage2D(...))
public class RenderPlugin_Tunnel implements IRenderPlugin
{
private int texture;
private GL gl;
private GLU glu = new GLU();
private boolean ready = false;
private float xrot; // X Rotation ( NEW )
private float yrot; // Y Rotation ( NEW )
private float zrot; // Z Rotation ( NEW )
public void setupScene()
{
gl.glShadeModel(GL.GL_SMOOTH); // Enable Smooth Shading
gl.glClearColor(0.0f, 0.0f, 0.0f, 0.5f); // Black Background
gl.glClearDepth(1.0f); // Depth Buffer Setup
gl.glEnable(GL.GL_DEPTH_TEST); // Enables Depth Testing
gl.glDepthFunc(GL.GL_LEQUAL); // The Type Of Depth Testing To Do
gl.glHint(GL.GL_PERSPECTIVE_CORRECTION_HINT, GL.GL_NICEST); // Really Nice Perspective Calculations
gl.glEnable(GL.GL_TEXTURE_2D);
texture = genTexture();
//gl.glBindTexture(GL.GL_TEXTURE_2D, texture);
Texture tex = null;
try
{
tex = TextureReader.readTexture("nehe.png");
}
catch (Exception e)
{
e.printStackTrace();
throw new RuntimeException(e);
}
makeRGBTexture(glu, tex, GL.GL_TEXTURE_2D, false);
gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MIN_FILTER, GL.GL_LINEAR);
gl.glTexParameteri(GL.GL_TEXTURE_2D, GL.GL_TEXTURE_MAG_FILTER, GL.GL_LINEAR);
ready = true;
}
public void update(XtendedMidiMessage midiMessage) {
if(midiMessage instanceof NoteMsg && midiMessage.getMidiChannel() == 3)
{
NoteMsg note = (NoteMsg)midiMessage;
if(note.getVelocity()==0 && note.getNoteNumber()<88)
{
}
else if(note.getVelocity()>0 && note.getNoteNumber()<88)
{
}
}
}
public void running()
{
if(ready)
{
gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
gl.glLoadIdentity(); // Reset The View
gl.glTranslatef(0.0f, 0.0f, -5.0f);
gl.glRotatef(xrot, 1.0f, 0.0f, 0.0f);
gl.glRotatef(yrot, 0.0f, 1.0f, 0.0f);
gl.glRotatef(zrot, 0.0f, 0.0f, 1.0f);
gl.glBindTexture(GL.GL_TEXTURE_2D, texture);
gl.glBegin(GL.GL_QUADS);
// Front Face
gl.glTexCoord2f(0.0f, 0.0f);
gl.glVertex3f(-1.0f, -1.0f, 1.0f);
gl.glTexCoord2f(1.0f, 0.0f);
gl.glVertex3f(1.0f, -1.0f, 1.0f);
gl.glTexCoord2f(1.0f, 1.0f);
gl.glVertex3f(1.0f, 1.0f, 1.0f);
gl.glTexCoord2f(0.0f, 1.0f);
gl.glVertex3f(-1.0f, 1.0f, 1.0f);
// Back Face
gl.glTexCoord2f(1.0f, 0.0f);
gl.glVertex3f(-1.0f, -1.0f, -1.0f);
gl.glTexCoord2f(1.0f, 1.0f);
gl.glVertex3f(-1.0f, 1.0f, -1.0f);
gl.glTexCoord2f(0.0f, 1.0f);
gl.glVertex3f(1.0f, 1.0f, -1.0f);
gl.glTexCoord2f(0.0f, 0.0f);
gl.glVertex3f(1.0f, -1.0f, -1.0f);
// Top Face
gl.glTexCoord2f(0.0f, 1.0f);
gl.glVertex3f(-1.0f, 1.0f, -1.0f);
gl.glTexCoord2f(0.0f, 0.0f);
gl.glVertex3f(-1.0f, 1.0f, 1.0f);
gl.glTexCoord2f(1.0f, 0.0f);
gl.glVertex3f(1.0f, 1.0f, 1.0f);
gl.glTexCoord2f(1.0f, 1.0f);
gl.glVertex3f(1.0f, 1.0f, -1.0f);
// Bottom Face
gl.glTexCoord2f(1.0f, 1.0f);
gl.glVertex3f(-1.0f, -1.0f, -1.0f);
gl.glTexCoord2f(0.0f, 1.0f);
gl.glVertex3f(1.0f, -1.0f, -1.0f);
gl.glTexCoord2f(0.0f, 0.0f);
gl.glVertex3f(1.0f, -1.0f, 1.0f);
gl.glTexCoord2f(1.0f, 0.0f);
gl.glVertex3f(-1.0f, -1.0f, 1.0f);
// Right face
gl.glTexCoord2f(1.0f, 0.0f);
gl.glVertex3f(1.0f, -1.0f, -1.0f);
gl.glTexCoord2f(1.0f, 1.0f);
gl.glVertex3f(1.0f, 1.0f, -1.0f);
gl.glTexCoord2f(0.0f, 1.0f);
gl.glVertex3f(1.0f, 1.0f, 1.0f);
gl.glTexCoord2f(0.0f, 0.0f);
gl.glVertex3f(1.0f, -1.0f, 1.0f);
// Left Face
gl.glTexCoord2f(0.0f, 0.0f);
gl.glVertex3f(-1.0f, -1.0f, -1.0f);
gl.glTexCoord2f(1.0f, 0.0f);
gl.glVertex3f(-1.0f, -1.0f, 1.0f);
gl.glTexCoord2f(1.0f, 1.0f);
gl.glVertex3f(-1.0f, 1.0f, 1.0f);
gl.glTexCoord2f(0.0f, 1.0f);
gl.glVertex3f(-1.0f, 1.0f, -1.0f);
gl.glEnd();
xrot += 0.3f;
yrot += 0.2f;
zrot += 0.4f;
}
}
public void kill()
{
System.out.println(this.getClass().getName() + " killed.");
}
public void init(GL _gl)
{
gl = _gl;
}
private int genTexture()
{
final int[] tmp = new int[1];
gl.glGenTextures(1, tmp, 0);
return tmp[0];
}
private void makeRGBTexture(GLU glu, Texture img, int target, boolean mipmapped) {
if (mipmapped) {
glu.gluBuild2DMipmaps(target, GL.GL_RGB8, img.getWidth(), img.getHeight(), GL.GL_RGB, GL.GL_UNSIGNED_BYTE, img.getPixels());
} else {
gl.glTexImage2D(target, 0, GL.GL_RGB, img.getWidth(), img.getHeight(), 0, GL.GL_RGB, GL.GL_UNSIGNED_BYTE, img.getPixels());
}
}
}
