Re: [PATCH v3 0/2] MR184: vkd3d-shader/hlsl: Add support for SampleGrad() method

[Giovanni Mascellani (＠giomasce)]

Giovanni Mascellani (@giomasce) commented about tests/sampler.shader_test:
> [test]
>  draw quad
>  probe all rgba (0.25, 0, 0.25, 0)
> +
> +[pixel shader]
> +SamplerState s;
> +Texture2D t;
> +
> +float4 main() : sv_target
> +{
> +    return t.SampleGrad(s, float2(0.5, 0.5), float2(0, 0), float2(0, 0));
> Given this is a relatively complex operation, it wouldn't be bad to test some less trivial input values and check that our implementation is reasonably similar to native.

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https://gitlab.winehq.org/wine/vkd3d/-/merge_requests/184#note_31499