Re: [PATCH 4/5] d3d/tests: Table fog does not abs the fog coordinate (v2).

[Stefan Dösinger]

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Am 2014-11-27 10:27, schrieb Henri Verbeet:
> On 26 November 2014 at 19:08, Stefan Dösinger  wrote:
> > - /* Needed to make AMD drivers happy. Yeah, it is not supposed to
> > -
> > * have an effect on RHW draws. */
> > - static const D3DMATRIX identity =
> > - {{{
> > -
> >    1.0f, 0.0f, 0.0f, 0.0f,
> > -
> >    0.0f, 1.0f, 0.0f, 0.0f,
> > -
> >    0.0f, 0.0f, 1.0f, 0.0f,
> > -
> >    0.0f, 0.0f, 0.0f, 1.0f
> > - }}};
>
> Is this the same projection matrix issue as in
> fog_test()/fog_with_shader_tests()/etc.?

I can't look into the AMD drivers, so I don't know for sure, but I think this is different. fog_test, fog_interpolation_test want a redundant application of the projection matrix. In this case there's a SetTransform(D3DTS_PROJECTION) already, but the z = 0.0 part breaks AMD drivers in RHW draws.

Why are you asking? Do you have some idea what is causing this behavior?
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