# Ruby-opengl on Mac OS X **URL:** \ **Category:** Ruby\ **Created:** [September 20, 2007, 6:31am UTC](https://www.ruby-forum.com/t/ruby-opengl-on-mac-os-x/115056 "2007-09-20T06:31:37Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![fearless\_fool](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/5e9695/32.png) [@fearless\_fool](https://www.ruby-forum.com/u/fearless_fool)\ **Post date:** [September 20, 2007, 6:31am UTC](https://www.ruby-forum.com/t/ruby-opengl-on-mac-os-x/115056/1 "2007-09-20T06:31:37Z")
All: Pardon this noobish question. I’m trying to bring up ruby-opengl on my Mac OS X (v 10.4.10). I ran “sudo gem install ruby-opengl” without any trouble – gem announced that it was loading ruby-opengl 0.40.1 as well as mkrf-0.2.2 – so far so good! I poked around and found that it had installed the following file (among others): /usr/local/lib/ruby/gems/1.8/gems/ruby-opengl-0.40.1/lib/opengl.rb This looks hopeful. In irb, I typed: irb(main):106:0\> require ‘opengl’ which resulted in: LoadError: no such file to load – opengl from /usr/local/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in `gem_original_require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`require’ from (irb):106 from /usr/local/lib/ruby/site\_ruby/1.8/rubygems.rb:399 My question: My guess is this is a problem with paths. What is the cleanest remedy? Do I extend my path, make symbolic links, or move the opengl files? Thanks. - ff ---
**Author:** ![fearless\_fool](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/5e9695/32.png) [@fearless\_fool](https://www.ruby-forum.com/u/fearless_fool)\ **Post date:** [September 20, 2007, 3:39pm UTC](https://www.ruby-forum.com/t/ruby-opengl-on-mac-os-x/115056/2 "2007-09-20T15:39:25Z")
On Thu, Sep 20, 2007 at 01:31:38PM +0900, Robert P. wrote: > This looks hopeful. In irb, I typed: > /usr/local/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in > `require’ > from (irb):106 > from /usr/local/lib/ruby/site\_ruby/1.8/rubygems.rb:399 > > My question: My guess is this is a problem with paths. What is the > cleanest remedy? Do I extend my path, make symbolic links, or move the > opengl files? I think you want to require ‘gl’ rather than ‘opengl’. With a working install of ruby-opengl on 10.4.10 I have the following in a working Ruby script: require ‘rubygems’ require ‘gl’ require ‘glu’ require ‘glut’ You don’t need GLU or GLUT unless you’re using them, mind you. > Thanks. > > - ff > –Greg ---
**Author:** ![fearless\_fool](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/5e9695/32.png) [@fearless\_fool](https://www.ruby-forum.com/u/fearless_fool)\ **Post date:** [September 20, 2007, 9:11pm UTC](https://www.ruby-forum.com/t/ruby-opengl-on-mac-os-x/115056/3 "2007-09-20T21:11:26Z")
Gregory S. wrote: > … > I think you want to require ‘gl’ rather than ‘opengl’. With a working > install of ruby-opengl on 10.4.10 I have the following in a working Ruby > script: > > require ‘rubygems’ > require ‘gl’ > require ‘glu’ > require ‘glut’ > > You don’t need GLU or GLUT unless you’re using them, mind you. > > –Greg Greg: Whoo hoo! It Just Works. Many thanks. - Rob ---
**Author:** ![fearless\_fool](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/5e9695/32.png) [@fearless\_fool](https://www.ruby-forum.com/u/fearless_fool)\ **Post date:** [October 12, 2007, 10:08am UTC](https://www.ruby-forum.com/t/ruby-opengl-on-mac-os-x/115056/4 "2007-10-12T10:08:54Z")
Hi, > /Volumes/TextMate1.5.5/TextMate.app/Contents/SharedSupport/Support/lib/ > scriptmate.rb:107:in `initialize’: Permission denied - > /usr/local/lib/ruby/gems/1.8/gems/ruby-opengl-0.40.1/examples/plane.rb > (Errno::EACCES) from /Volumes/TextMate > > What am I doing wrong? I think TextMate needs write access to files to run them (bug?). I had the very same problem yesterday, even with a ‘properly’ installed TextMate, and I ended up copying the example .rb files to the Desktop. Could run them from there without problems. Julian ---
**Author:** ![fearless\_fool](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/5e9695/32.png) [@fearless\_fool](https://www.ruby-forum.com/u/fearless_fool)\ **Post date:** [October 12, 2007, 11:39am UTC](https://www.ruby-forum.com/t/ruby-opengl-on-mac-os-x/115056/5 "2007-10-12T11:39:20Z")
Julian R. wrote: > Hi, > > > /Volumes/TextMate1.5.5/TextMate.app/Contents/SharedSupport/Support/lib/ > > scriptmate.rb:107:in `initialize’: Permission denied - > > /usr/local/lib/ruby/gems/1.8/gems/ruby-opengl-0.40.1/examples/plane.rb > > (Errno::EACCES) from /Volumes/TextMate > > > > What am I doing wrong? > > I think TextMate needs write access to files to run them (bug?). I had > the very same problem yesterday, even with a ‘properly’ installed > TextMate, and I ended up copying the example .rb files to the Desktop. > Could run them from there without problems. > > Julian Ok, I copied an exmple rb file to the Desktop where TextMate is, but still get: LoadError: Failed to lookup Init function /usr/local/lib/ruby/gems/1.8/gems/ruby-opengl-0.40.1/lib/gl.bundle method require in custom\_require.rb at line 32 at top level in gl-test.rb at line 46 ??? BTW, my TextMate is a trial version. Sy ---
**Author:** ![fearless\_fool](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/5e9695/32.png) [@fearless\_fool](https://www.ruby-forum.com/u/fearless_fool)\ **Post date:** [October 12, 2007, 9:18am UTC](https://www.ruby-forum.com/t/ruby-opengl-on-mac-os-x/115056/6 "2007-10-12T09:18:46Z")
Fearless F. wrote: > Gregory S. wrote: > > > … > > I think you want to require ‘gl’ rather than ‘opengl’. With a working > > install of ruby-opengl on 10.4.10 I have the following in a working Ruby > > script: > > > > require ‘rubygems’ > > require ‘gl’ > > require ‘glu’ > > require ‘glut’ > > > > You don’t need GLU or GLUT unless you’re using them, mind you. > > > > –Greg > > Greg: > > Whoo hoo! It Just Works. Many thanks. > > - Rob Hello, Greg and Rob, Sorry for my newbie question in advance. I am in very similar situation as Rob was in: I installed ruby-opengl-0.40.1 in OS X(v. 10.4.10), and found ‘opengl.rb’ and others in /usr/local/lib/ruby/gems/1.8/gems/ruby-opengl-0.40.1/lib/opengl.rb But when I do irb(main):003:0\> require ‘gl’ I get the following error: LoadError: Failed to lookup Init function ./gl.bundle from ./gl.bundle from (irb):2 (Well, ‘opengl.rb’ file contains line “require ‘gl’” anyway, but when I do irb(main):003:0\> require ‘opengl’, I receive: LoadError: Failed to lookup Init function ./gl.bundle from ./gl.bundle from ./opengl.rb:16 from (irb):1:in `require’ from (irb):1 ) I also tried to test run ‘plane.rb’ file located in /usr/local/lib/ruby/gems/1.8/gems/ruby-opengl-0.40.1/lib/examples using TextMate and got the following: /Volumes/TextMate1.5.5/TextMate.app/Contents/SharedSupport/Support/lib/ scriptmate.rb:107:in `initialize’: Permission denied - /usr/local/lib/ruby/gems/1.8/gems/ruby-opengl-0.40.1/examples/plane.rb (Errno::EACCES) from /Volumes/TextMate What am I doing wrong? Sy ---
**Author:** ![fearless\_fool](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/5e9695/32.png) [@fearless\_fool](https://www.ruby-forum.com/u/fearless_fool)\ **Post date:** [October 13, 2007, 12:23am UTC](https://www.ruby-forum.com/t/ruby-opengl-on-mac-os-x/115056/7 "2007-10-13T00:23:21Z")
On 10/12/07, Sy Yoon [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > I think TextMate needs write access to files to run them (bug?). I had > > /usr/local/lib/ruby/gems/1.8/gems/ruby-opengl-0.40.1/lib/gl.bundle > > method require in custom\_require.rb at line 32 > at top level in gl-test.rb at line 46 > > ??? > > BTW, my TextMate is a trial version. Don’t know if it might be the same problem, but just in case. I was trying to install opengl in Ubuntu, but couldn’t make it work, until someone pointed to me that opengl.0.40.1 required version 1.9+ of rubygems. So maybe you could try to upgrade to version 1.9 to see if that’s the problem? In Ubuntu: sudo gem update --system Don’t know how to do it in Mac OS X, though. Hope this helps, Jesus.