(I accidently sent this from the wrong email account initially) Hello everyone, Anyone done any macruby opengl? I am trying to get Hillegass's opengl example going in MacRuby. My MacRuby version falls over in the drawRect method of an NSOpenGLView subclass, when it hits the glut function calls. eg: glutSolidTorus(0.3, 1.8, 35 , 31) It does not have problems with previous open gl methods/functions eg: def drawRect(r) glClearColor(0.2, 0.4, 0.1, 0.0) glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT) glMatrixMode(GL_MODELVIEW) glLoadIdentity gluLookAt(@radius * Math::sin(@theta), 0, @radius * Math::cos(@theta), 0,0,0,0,1,0) lightPosition = [@lightX, 1, 3, 0.0] glLightfv(GL_LIGHT0, GL_POSITION, lightPosition) if !@displayList @displayList = glGenLists(1) glNewList(@displayList, GL_COMPILE_AND_EXECUTE) glTranslatef(0,0,0) glutSolidTorus(0.3, 1.8, 35 , 31) <= error occurs here `drawRect': undefined local variable or method `glut' for #<GlissView: 0x10df210> (NameError) I am actually uncertain whether it is a MacRuby issue or just that I am not loading the glut framework or requiring it properly or something else. Both the OpenGL and GLUT frameworks are in the Xcode project , and i do the framework calls: framework 'Cocoa' framework 'OpenGL' framework 'GLUT' in rb_main.rb. Though in fact it seems to not fall over any earlier if i remove the last two framework calls. I am using macruby version 766. Any ideas? cheers and thanks, John