Re: [PATCH v3 0/3] MR364: vkd3d-shader/hlsl: Implement inverse trigonometry.

[Giovanni Mascellani (＠giomasce)]

Giovanni Mascellani (@giomasce) commented about tests/hlsl/inverse-trig.shader_test:
> +[pixel shader]
> +uniform float4 a;
> -
>
> +float4 main() : sv_target
> +{
> - // Add 10 to avoid epsilon problems near 0
> - // Note that this means -8.5odd means -pi/2
> - return float4(asin(a.x), acos(a.y), 0.0, 0) + 10.0;
>
> +}
> -
>
> +[test]
> +uniform 0 float4 -1.0 -1.0 -1.0 0.0
> +draw quad
> +probe all rgba (8.429203673, 13.141592654, 10.0, 10.0) 256

Are you sure you need this amount of tolerance, once you use the coefficients and formulae from the native compiler?