simd_refract
Returns the refraction direction of an incident vector, a unit normal vector, and an index of refraction eta.
Declaration
static simd_double2 simd_refract(simd_double2 __x, simd_double2 __n, double __eta);Returns the refraction direction of an incident vector, a unit normal vector, and an index of refraction eta.
static simd_double2 simd_refract(simd_double2 __x, simd_double2 __n, double __eta);