问题
When I run my test JOGL app, it says that I only have GL2 available on the thread when my system supports up to OpenGL 4.1 according to the OpenGl Extensions Viewer.
Does anyone see anything obvious why only GL2 would be supported in the thread?
I am using a mid-2015 Macbook Pro with Intel Iris and AMD Radeon R9 graphics cards.
This is the very first exercise in the book [Computer Graphics Programming in OpenGL with Java].4
Java Version: Java8
JOGL Version: 2.3.2
GlueGen Version: 2.3.2
import java.nio.*;
import javax.swing.*;
import static com.jogamp.opengl.GL4.*;
import com.jogamp.opengl.*;
import com.jogamp.opengl.awt.GLCanvas;
import com.jogamp.common.nio.Buffers;
public class Code extends JFrame implements GLEventListener {
private GLCanvas myCanvas;
public Code() {
setTitle("Chapter 2 - program1");
setSize(600, 400);
setLocation(200, 200);
myCanvas = new GLCanvas();
myCanvas.addGLEventListener(this);
this.add(myCanvas);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
public void display(GLAutoDrawable drawable) {
GL4 gl = (GL4) GLContext.getCurrentGL();
drawable.setGL(new DebugGL4(gl));
float bkg[] = { 1.0f, 0.0f, 0.0f, 1.0f };
FloatBuffer bkgBuffer = Buffers.newDirectFloatBuffer(bkg);
gl.glClearBufferfv(GL_COLOR, 0, bkgBuffer);
}
public static void main(String[] args) {
new Code();
}
public void init(GLAutoDrawable drawable) {
GL4 gl = drawable.getGL().getGL4(); // This is where the code fails
String version = gl.glGetString(GL4.GL_VERSION);
String shaderversion = gl.glGetString(GL4.GL_SHADING_LANGUAGE_VERSION);
System.out.println("GLVERSION: " + version + " shading language: " + shaderversion );
}
public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) { }
public void dispose(GLAutoDrawable drawable) { }
}
Exception:
/Library/Java/JavaVirtualMachines/jdk1.8.0_102.jdk/Contents/Home/bin/java -Didea.launcher.port=7535 "-Didea.launcher.bin.path=/Applications/IntelliJ IDEA.app/Contents/bin" -classpath /private/var/folders/rd/tltb7sk928x_n429dyctdt8c0000gn/T/classpath1.jar -Dfile.encoding=UTF-8 com.intellij.rt.execution.application.AppMain Code
Exception in thread "AWT-EventQueue-0" com.jogamp.opengl.GLException: Caught GLException: Not a GL4 implementation on thread AWT-EventQueue-0
at com.jogamp.opengl.GLException.newGLException(GLException.java:76)
at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1327)
at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:1147)
at com.jogamp.opengl.awt.GLCanvas$12.run(GLCanvas.java:1438)
at com.jogamp.opengl.Threading.invoke(Threading.java:223)
at com.jogamp.opengl.awt.GLCanvas.display(GLCanvas.java:505)
at com.jogamp.opengl.awt.GLCanvas.paint(GLCanvas.java:559)
at sun.awt.RepaintArea.paintComponent(RepaintArea.java:264)
at sun.lwawt.LWRepaintArea.paintComponent(LWRepaintArea.java:59)
at sun.awt.RepaintArea.paint(RepaintArea.java:240)
at sun.lwawt.LWComponentPeer.handleJavaPaintEvent(LWComponentPeer.java:1314)
at sun.lwawt.LWComponentPeer.handleEvent(LWComponentPeer.java:1198)
at java.awt.Component.dispatchEventImpl(Component.java:4965)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: com.jogamp.opengl.GLException: Not a GL4 implementation
at jogamp.opengl.gl4.GL4bcImpl.getGL4(GL4bcImpl.java:40464)
at Code.init(Code.java:38)
at jogamp.opengl.GLDrawableHelper.init(GLDrawableHelper.java:644)
at jogamp.opengl.GLDrawableHelper.init(GLDrawableHelper.java:667)
at com.jogamp.opengl.awt.GLCanvas$10.run(GLCanvas.java:1407)
at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1291)
... 30 more
Exception in thread "AWT-EventQueue-0" com.jogamp.opengl.GLException: Caught GLException: Thread[AWT-EventQueue-0,6,main] glGetError() returned the following error codes after a call to glActiveTexture(<int> 0x84C0): GL_INVALID_OPERATION ( 1282 0x502), on thread AWT-EventQueue-0
at com.jogamp.opengl.GLException.newGLException(GLException.java:76)
at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1327)
at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:1147)
at com.jogamp.opengl.awt.GLCanvas$12.run(GLCanvas.java:1438)
at com.jogamp.opengl.Threading.invoke(Threading.java:223)
at com.jogamp.opengl.awt.GLCanvas.display(GLCanvas.java:505)
at com.jogamp.opengl.awt.GLCanvas.paint(GLCanvas.java:559)
at com.jogamp.opengl.awt.GLCanvas.update(GLCanvas.java:866)
at sun.awt.RepaintArea.updateComponent(RepaintArea.java:255)
at sun.lwawt.LWRepaintArea.updateComponent(LWRepaintArea.java:47)
at sun.awt.RepaintArea.paint(RepaintArea.java:232)
at sun.lwawt.LWComponentPeer.handleJavaPaintEvent(LWComponentPeer.java:1314)
at sun.lwawt.LWComponentPeer.handleEvent(LWComponentPeer.java:1198)
at java.awt.Component.dispatchEventImpl(Component.java:4965)
at java.awt.Component.dispatchEvent(Component.java:4711)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.awt.EventQueue$4.run(EventQueue.java:731)
at java.awt.EventQueue$4.run(EventQueue.java:729)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
Caused by: com.jogamp.opengl.GLException: Thread[AWT-EventQueue-0,6,main] glGetError() returned the following error codes after a call to glActiveTexture(<int> 0x84C0): GL_INVALID_OPERATION ( 1282 0x502),
at com.jogamp.opengl.DebugGL4bc.writeGLError(DebugGL4bc.java:31803)
at com.jogamp.opengl.DebugGL4bc.glActiveTexture(DebugGL4bc.java:232)
at jogamp.opengl.GLFBODrawableImpl.swapFBOImpl(GLFBODrawableImpl.java:471)
at jogamp.opengl.GLFBODrawableImpl.swapBuffersImpl(GLFBODrawableImpl.java:426)
at jogamp.opengl.GLDrawableImpl.swapBuffers(GLDrawableImpl.java:88)
at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1295)
... 31 more
Process finished with exit code 0
回答1:
It turns out that OSX falls back to OpenGL 2.1 so you need to set the core profile yourself.
$ glxinfo | grep OpenGL
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: AMD Radeon R9 M370X OpenGL Engine
OpenGL version string: 2.1 ATI-1.42.15
OpenGL shading language version string: 1.20
I was able to set the core version (OpenGL 4.1) by passing GLCapabilities into the GLCanvas constructor.
Here is the new, fixed constructor:
public Code() {
setTitle("Chapter 2 - program1");
setSize(600, 400);
setLocation(200, 200);
// This was the fix
GLProfile glp = GLProfile.getMaxProgrammableCore(true);
GLCapabilities caps = new GLCapabilities(glp);
myCanvas = new GLCanvas(caps);
myCanvas.addGLEventListener(this);
this.add(myCanvas);
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setVisible(true);
}
回答2:
For running the book's examples on a Mac, I have placed instructions on this website: http://athena.ecs.csus.edu/~gordonvs/errataMac.html
In summary, you need to:
- make sure you've installed the latest Java SE
- place the relevant JOGL libraries into System/Library/Java/Extensions (the particular ones required are listed in the above website)
- add the code described above by Julien (thanks!)
- change the version numbers on the shaders to 410 (or whatever your Mac supports)
- in the examples that use textures, replace the binding layout qualifiers in the shaders to appropriate calls to glUniform1i() in the Java application (for compatibility with version 4.1)
If more idiosyncrasies are identified, I'll add them to the instructions in the website.
来源：https://stackoverflow.com/questions/42739985/card-supports-opengl-4-1-but-no-gl4-implementation-on-thread