Re: [Plib-devel] SSG: Using the bitmap loaders for own texture classes?

[Jan R. <slo...@gm...>]

Am Fri, 12 Aug 2005 16:36:43 +0200 schrieb p.l...@ci...:

> You could approach by overriding the default createTexture() method in the
> ssgLoaderOptions class, which is then used by almost all 3D loaders.

Hello Paolo,

thanks for your reply, but I think we're talking about different things.
My problem is the texture bitmap loading (loading a texture file into
memory so that I can access the pixel data), not the texture generation
itself. 

SSG encapsulates all those steps:

- allocate a texture handle
- call a loader function that matches the file extension
- the loader reads the pixel data into memory
- the loader function itself calls ssgMakeMipmaps() on the pixel data
  array for the actual texture generation

What I need:

- call the loader function directly
- manipulate the pixel data (split image into several tiles)
- generate textures from the tiles
- set the texture parameters the way I need them

Only step one is a problem, because I can't use the loader without
automatically invoking ssgMakeMipMaps. The rest is relatively easy.

Kind regards,
Jan R.

-- 
Jan Reucker
email: jan dot reucker at web dot de
web:   http://www.reucker-online.de