[pixel shader]
uniform float4 a;

float4 main() : sv_target
{
    return radians(a);
}

[test]
uniform 0 float4 0.0 30.0 150.0 180.0
todo(msl) draw quad
probe (0, 0) rgba (0.0, 0.52359877, 2.61799387, 3.14159265)


[pixel shader]
uniform float4 a;

float4 main() : sv_target
{
    return degrees(a);
}

[test]
uniform 0 float4 0.0 0.78539816 1.57079632 2.35619449
todo(msl) draw quad
probe (0, 0) rgba (0.0, 45.0, 90.0, 135.0)