Re: [Plib-devel] User defined texture formats

[Steve B. <sjb...@ai...>]

> Dave McClurg wrote:
> 
> Trent Gamblin wrote:
> > I think SSG needs to have some hooks to allow user defined image
> > formats...
> 
> I did a cvs commit which adds a leaf creation hook to ssgLoadAC.cxx

OK - but I don't think this is the place to load textures.

Shouldn't this just be the (existing) ssgGetAppState callback?

Whenever the loader allocates a new ssgState, it calls that callback
with the name of the texture map - you can then either share an
existing ssgState or allocate a new one - complete with correctly
loaded texture map.

> This should allow you to load the image formats you need.  This hook
> should allow you to do other things like:
> 
> - load compressed or volumized textures
> - strip off full paths from texture filenames
>     i use that for ASE files because the modeler stores full paths
>     whereas Steve likes a path that starts with '/' to be left alone.

Both are more appropriate for ssgGetAppState.

> - cull unwanted geometry or texture info
> - recompute normals

Yep - these are good reasons for a leaf callback.

-- 
Steve Baker                  http://web2.airmail.net/sjbaker1
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