Error in OpenGL

stolzstudio has asked for the wisdom of the Perl Monks concerning the following question:

I try started work with Perl OpenGL and wrote a simple program:

use OpenGL;
sub glInit {
  glpOpenWindow();
}

glInit();
print "Press return to exit\n";
while ( <> ) {
  exit;
}
[download]

But in line glpOpenWindow i have error:

Goto undefined subroutine &AutoLoader::AUTOLOAD at /Library/Perl/5.18/
+darwin-thread-multi-2level/OpenGL.pm line 6110.
[download]

How can i fix it?

Comment on Error in OpenGL Select or Download Code

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Re: Error in OpenGL by kevbot (Vicar) on Apr 10, 2016 at 06:13 UTC
Hello stolzstudio, I took a look at the source of OpenGL, and it appears that `glpOpenWindow` is a wrapper around `glpcOpenWindow`. However, if I modify your code slightly to call `glpcOpenWindow` directly, `#!/usr/bin/env perl use strict; use warnings; use OpenGL; sub glInit { OpenGL::glpcOpenWindow(); } glInit(); print "Press return to exit\n"; while ( <> ) { exit; }` [download] I get this error message: `Your vendor has not defined OpenGL macro glpcOpenWindow, used at t2.pl + line 8.` [download] By the way, I'm on a Mac (running OS X 10.11, El Capitan). I found a couple threads that seem to encounter a similar problem: perl/TK and OpenGL http://stackoverflow.com/questions/24989072/first-time-in-perl-opengl I gave up trying to get variations of your code to work, but I found a good site with working perl OpenGL examples here: http://nehe.gamedev.net/tutorial/lessons_01__05/22004/. I downloaded and ran the perl code for the first two lessons, and they both worked (the download links are at the bottom of each lesson page). Lesson 1: Setting Up An OpenGL Window Lesson 2: Your First Polygon Perhaps those examples will be helpful. Update: I made some minor formatting edits.	[reply] [d/l] [select]
Re: Error in OpenGL by jmlynesjr (Deacon) on Apr 11, 2016 at 01:08 UTC
When I built wxWidgets 3.0.1 and wxPerl on Ubuntu 14.04, OpenGL was one of the dependencies that I had to install from CPAN. James There's never enough time to do it right, but always enough time to do it over...	[reply]