Posted by elect on Sep 18, 2013; 11:44am
URL: https://forum.jogamp.org/Modern-JOGL-simple-texture-example-tp4029964p4030063.html

Enabling the debug I see this

GLDebugEvent[ id 0x20092
        type Warning: implementation dependent performance
        severity Medium: Severe performance/deprecation/other warnings
        source GL API
        msg Program/shader state performance warning: Fragment Shader is going to be recompiled because the shader key based on GL state mismatches.
        when 1379504391541
        source 3.3 (Compat profile, arb, debug, ES2 compat, FBO, hardware) - 3.3.0 - hash 0x35161c07]
java.lang.Exception: Stack trace
display
        at java.lang.Thread.dumpStack(Thread.java:1342)
        at jogamp.opengl.GLDebugMessageHandler$StdErrGLDebugListener.messageSent(GLDebugMessageHandler.java:306)
        at jogamp.opengl.GLDebugMessageHandler.sendMessage(GLDebugMessageHandler.java:292)
        at jogamp.opengl.GLDebugMessageHandler.glDebugMessageARB(GLDebugMessageHandler.java:317)
        at jogamp.opengl.gl4.GL4bcImpl.dispatch_glDrawArrays1(Native Method)
        at jogamp.opengl.gl4.GL4bcImpl.glDrawArrays(GL4bcImpl.java:4554)
        at test.Test.display(Test.java:141)
        at jogamp.opengl.GLDrawableHelper.displayImpl(GLDrawableHelper.java:588)
        at jogamp.opengl.GLDrawableHelper.display(GLDrawableHelper.java:572)
        at javax.media.opengl.awt.GLCanvas$7.run(GLCanvas.java:1054)
        at jogamp.opengl.GLDrawableHelper.invokeGLImpl(GLDrawableHelper.java:1034)
        at jogamp.opengl.GLDrawableHelper.invokeGL(GLDrawableHelper.java:909)
        at javax.media.opengl.awt.GLCanvas$8.run(GLCanvas.java:1065)
        at javax.media.opengl.Threading.invoke(Threading.java:193)
        at javax.media.opengl.awt.GLCanvas.display(GLCanvas.java:483)
        at javax.media.opengl.awt.GLCanvas.paint(GLCanvas.java:537)
        at sun.awt.RepaintArea.paintComponent(RepaintArea.java:264)
        at sun.awt.RepaintArea.paint(RepaintArea.java:240)
        at sun.awt.windows.WComponentPeer.handleEvent(WComponentPeer.java:347)
        at java.awt.Component.dispatchEventImpl(Component.java:4937)
        at java.awt.Component.dispatchEvent(Component.java:4687)
        at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:729)
        at java.awt.EventQueue.access$200(EventQueue.java:103)
        at java.awt.EventQueue$3.run(EventQueue.java:688)
        at java.awt.EventQueue$3.run(EventQueue.java:686)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
        at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
        at java.awt.EventQueue$4.run(EventQueue.java:702)
        at java.awt.EventQueue$4.run(EventQueue.java:700)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:699)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)

Why? What has being changed and then the shader compiled again?