Hello, below is a really basic sketch I was trying to get going just to test out OpenGL in Ruby-Processing.

Code:

require 'ruby-processing'

class Opengltest < Processing::App
  load_java_library "opengl"
  include_package "processing.opengl"
  
  def setup
    render_mode OPENGL
  end
  
  def draw
  
  end
  
end

Opengltest.new :title => "Opengltest", :width => 800, :height => 600 

However, when the sketch runs. I get the error trace below:

Exception in thread "Animation Thread" java/lang/Class.java:-2:in `getDeclaredConstructors0': java.lang.VerifyError: (class: processing/opengl/PGraphicsOpenGL, method: bindTexture signature: (Lprocessing/core/PImage;)V) Bad access to protected data (NativeException)
from java/lang/Class.java:2357:in `privateGetDeclaredConstructors'
from java/lang/Class.java:2671:in `getConstructor0'
from java/lang/Class.java:1629:in `getConstructor'
from processing/core/PApplet.java:1142:in `makeGraphics'
from processing/core/PApplet.java:982:in `size'
from processing/core/PApplet.java:942:in `size'
from sun/reflect/NativeMethodAccessorImpl.java:-2:in `invoke0'
from sun/reflect/NativeMethodAccessorImpl.java:39:in `invoke'
... 26 levels...
from java/lang/Thread.java:613:in `run'
from opengltest.rb:8:in `setup'
from :1

jashkenas wrote on Jan 31^st, 2009, 5:06pm:


Hey jashkenas, thanks for responding.

I am on Mac OS X 10.5.5 and I believe it's just using the Java install that came with the OS, I haven't particularly modified it at all. And I am using Processing 1.0.2.

Here's what I get out of java -version at the CLI:

java version "1.5.0_16"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_16-b06-284)
Java HotSpot(TM) Client VM (build 1.5.0_16-133, mixed mode, sharing)

Fixed it. Thanks a lot for your help.

I am a complete idiot. Haha. My path to the JOGL lib folder was wrong. Thanks again