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Java-Gaming.org > Java Game APIs & Engines > OpenGL Development > JOGL Development > glCreateShader not available in JSR 231
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  glCreateShader not available in JSR 231  (Read 913 times)
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Offline kitfox

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« on: 2011-06-30 08:56:16 »
I have another weird porting error for JSR 231.  While trying to diagnose another problem, I tried getting a program I'm developing up and running on my laptop.  It has a cheap ATI Mobility Radeon HD 2300 and runs OpenGL 2.1.7.  Now while my program runs fine on my desktop, on my laptop I get an exception whenever I try to call glCreateShader.  However, my laptop is able to handle shaders and I'm able to call glCreateShader under JOGL 1.1.1a (albeit in a different program).  (I've not run my current program on my laptop before, so I can't say if this call would work for it under JOGL 1.1.1)

Exception in thread "AWT-EventQueue-0" javax.media.opengl.GLException: Method "glCreateShader" not available
        at jogamp.opengl.gl4.GL4bcImpl.glCreateShader(GL4bcImpl.java:3115)
        at javax.media.opengl.DebugGL2.glCreateShader(DebugGL2.java:28623)
        at com.kitfox.coyote.renderer.jogl.GLWrapperJOGL.glCreateShader(GLWrapperJOGL.java:189)
        at com.kitfox.coyote.renderer.CyMaterial.loadShader(CyMaterial.java:38)
Offline gouessej

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« Reply #1 on: 2011-06-30 13:23:15 »
Hi!

I succeeded in using glCreateShader with NVIDIA Quadro FX and JOGL 2.0. Can you try again without using DebugGL2?
Julien Gouesse
Offline kitfox

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« Reply #2 on: 2011-06-30 13:55:40 »
I tried without the DebugGL2.  Same error.
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Offline gouessej

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« Reply #3 on: 2011-06-30 15:11:13 »
Try to display the OpenGL version used by JOGL so that we can check whether it uses the proper driver.
Julien Gouesse
Offline kitfox

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« Reply #4 on: 2011-06-30 16:16:47 »
1  
System.err.println("GL version:" + gl.glGetString(GL.GL_VERSION));


is giving me

1  
GL version:1.1.0


Not sure why.  JOGL 1.1.1 reports

1  
2.1.7412 Release.
Offline gouessej

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« Reply #5 on: 2011-06-30 18:00:52 »
Quote from: kitfox on 2011-06-30 16:16:47
1  
System.err.println("GL version:" + gl.glGetString(GL.GL_VERSION));


is giving me

1  
GL version:1.1.0


Not sure why.  JOGL 1.1.1 reports

1  
2.1.7412 Release.

JOGL 2.0 seems to use the default Microsoft driver that supports only OpenGL 1.1.0. Talk about it to Sven on the official JogAmp forum, he will be able to help you as we know the symptom.
Julien Gouesse
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