Re: [GtkGLExt] textures

[jlm <jsado_sc4 earthlink net>]

glTexImage2D expects texture data to be handed it in an array. The 
parameters to glTexImage2D describe how the image data is packed in the 
array. For example you could use 8 bit integers in red, green, blue 
order. So the first pixel will be described by the first three elements 
of the array, first the red component, then the green component, finally 
the blue component.

I don't readily see how to take the image data loaded via a gtk library 
 call, and get it's RGB components to place into an array. For my 
application I don't need to load from a file, so it isn't a problem. I 
store my image data in an array in RGB format anyway.

You might want to look into the imlib2 library. It can be used to load 
and save image data, I think it will allow you to extract the RGB 
component data also.

flood wrote:
> Hello, how can I load a simple texture to use use in opengl? Can I use the
> function gtk_image_new_from_file? If so eactly what parameters do I pass for
> the function glTexImage2D?
>
> --
> ~flood
>
>
>
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