Think I found it. TextureManager>>uploadTexture:   calls 
TextureManager>>uploadTexture:dirtyRect: which does the OpenGL calls to 
register the texture with OpenGL.

Hooray.

L.

On 12/20/11 8:57 AM, Lawson English wrote:
> I'm trying to figure out how to load and use an image as a gl texture. 
> I've bounced my head against this for several hours over the past 2 
> days. I've looked at the texture manager code but not  getting it. 
> Since it depends on TForm, which is a Croquet/Cobalt object, it 
> wouldn't be possible to use it directly even if I did understand it 
> (yes, I looked at TForm as well, but still don't quite get what is 
> going on)
>
>  Is there a simple example of how to load a texture with squeak and 
> use #glBindTexture:with: so that it can be used in the NeHe tutorial 6?
>
> I have a vague idea that I could allocate ExternalMemory and BitBlt 
> into that and then hand that off to the #glBindTexture:with: call,  
> but I cant find out how TextureManager does it and I thought perhaps I 
> should make sure I'm doing it the best way if I'm writing a tutorial 
> how-to for the public-at-large.
>
> Thanks in advance for any tips/advice/code.
>
> Lawson
>
>
>
>