Already seen...I think my problem is not linked to matrix transformations or
math linearization but something like target textures or else. I'm trying to
write the z-value of the screen in the alpha channel of a RGBA float 32
texture (GL_RGBA32F_ARB).
I read somewhere that there is a GL_DEPTH_BUFFER_ARB internal format but I
can't find the header where is defined.
2008/12/16 Dirk Reiners <dirk.rein...@gmail.com>
>
> Check out
>
> http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=234519
> for some interesting info on gl_FragCoord.
>
> Hope it helps
>
> Dirk
>
>
>
>
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