Re: [Mesa3d-dev] depth test after texturing

[Keith W. <ke...@tu...>]

> 
> See the OpenGL specification.  The per-fragment operations have to
> be done in a particular order.  Suppose that alpha test is enabled,
> depth testing is enabled and texturing is enabled.  Texturing may
> effect the alpha value which may determine whether a fragment is
> culled by the alpha test.  The fragment may or may not make it to
> the depth test.  Clearly, the depth test can't be done before texturing
> in this situation.

Why not?

Keith