From: Tom <valde.maximus@...>
Date: 2007-10-04T23:20:09+09:00
Subject: Re: generate texture

On Oct 4, 12:16 am, Tom <valde.maxi...@gmail.com> wrote:
> I am trying to generate a texture.
>
> When I execute: @texture = glGenTextures(1).first
>
> I get the following error:
>
> [BUG] Bus Error
> ruby 1.8.4 (2005-12-24) [i686-darwin8.8.1]
>
> Any help would be great.  Thanks.
>
> Tom
>
> Below is a more complete snippet of the code that I am using:
>
> #!/usr/local/bin/ruby
>
> require 'rubygems'
> require 'opengl'
>
> include Gl
> include Glu
> include Glut
>
> class GlutTest
>
>   def initialize
>     puts "=== GlutTest.initialize ==="
>
>     @texture = glGenTextures(1).first
>
>     # Setup the GLUT display loop callback
>     @display = lambda do
>       glClear(Gl::GL_COLOR_BUFFER_BIT | Gl::GL_DEPTH_BUFFER_BIT)
>
>       gluOrtho2D(0.0, 128.0, 0.0, 128.0)
>
>       glutSwapBuffers
>     end
>
> ...
>
> end

The issue was that the call to generate a texture must be inside of a
glut call back.