From: Jan Dvorak <jan.dvorak@...>
Date: 2008-06-20T20:51:45+09:00
Subject: Re: How to load a Texture in Ruby-Opengl

On Thursday 19 June 2008 20:38:40 onionblossom@gmail.com wrote:
> Hi,
>
> I don't get it working in Ruby. I try to load a texture which works
> pretty easy in other languages like c++ and there are plenty of
> examples in other languages but none for Ruby.
>
> The file could be any format but I like to keep it simple: ppm or raw.
> Can anyone give me a hint or a snippet how to do it?

It works the same way as in C or other languages, you need library (like 
RMagick/ImageMagick,SDL_image etc.) that decodes the image format to raw 
pixel data in memory (in ruby it's represented as string), then pass it to 
the opengl functions (glTexImage*).

Jan