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# glm::gtx::simd_vec4 Namespace Reference

GLM_GTX_simd_vec4 extension: SIMD implementation of vec4 type. More...

## Functions
detail::fvec4SIMD | abs (detail::fvec4SIMD const &x)
| Returns x if x >= 0; otherwise, it returns -x.
detail::fvec4SIMD | ceil (detail::fvec4SIMD const &x)
| Returns a value equal to the nearest integer to x.
detail::fvec4SIMD | clamp (detail::fvec4SIMD const &x, detail::fvec4SIMD const &minVal, detail::fvec4SIMD const &maxVal)
| Returns min(max(x, minVal), maxVal) for each component in x using the floating-point values minVal and maxVal.
detail::fvec4SIMD | cross (detail::fvec4SIMD const &x, detail::fvec4SIMD const &y)
| Returns the cross product of x and y.
float | distance (detail::fvec4SIMD const &p0, detail::fvec4SIMD const &p1)
| Returns the distance betwwen p0 and p1, i.e., length(p0 - p1).
detail::fvec4SIMD | distance4 (detail::fvec4SIMD const &p0, detail::fvec4SIMD const &p1)
| Returns the distance betwwen p0 and p1, i.e., length(p0 - p1).
detail::fvec4SIMD | dot4 (detail::fvec4SIMD const &x, detail::fvec4SIMD const &y)
| Returns the dot product of x and y, i.e., result = x * y.
detail::fvec4SIMD | fastInversesqrt (detail::fvec4SIMD const &x)
| Returns the reciprocal of the positive square root of x.
float | fastLength (detail::fvec4SIMD const &x)
| Returns the length of x, i.e., sqrt(x * x).
detail::fvec4SIMD | fastLength4 (detail::fvec4SIMD const &x)
| Returns the length of x, i.e., sqrt(x * x).
detail::fvec4SIMD | fastNormalize (detail::fvec4SIMD const &x)
| Returns a vector in the same direction as x but with length of 1.
detail::fvec4SIMD | fastSqrt (detail::fvec4SIMD const &x)
| Returns the positive square root of x Less accurate but much faster than sqrt.
detail::fvec4SIMD | floor (detail::fvec4SIMD const &x)
| Returns a value equal to the nearest integer that is less then or equal to x.
detail::fvec4SIMD | fma (detail::fvec4SIMD const &a, detail::fvec4SIMD const &b, detail::fvec4SIMD const &c)
| Returns true if x holds a NaN (not a number) representation in the underlying implementation's set of floating point representations.
detail::fvec4SIMD | fract (detail::fvec4SIMD const &x)
| Return x - floor(x).
detail::fvec4SIMD | inversesqrt (detail::fvec4SIMD const &x)
| Returns the reciprocal of the positive square root of x.
float | length (detail::fvec4SIMD const &x)
| Splits x into a floating-point significand in the range [0.5, 1.0) and an integral exponent of two, such that: x = significand * exp(2, exponent) The significand is returned by the function and the exponent is returned in the parameter exp.
detail::fvec4SIMD | length4 (detail::fvec4SIMD const &x)
| Returns the length of x, i.e., sqrt(x * x).
detail::fvec4SIMD | max (detail::fvec4SIMD const &x, detail::fvec4SIMD const &y)
| Returns y if x < y; otherwise, it returns x.
detail::fvec4SIMD | min (detail::fvec4SIMD const &x, detail::fvec4SIMD const &y)
| Returns the fractional part of x and sets i to the integer part (as a whole number floating point value).
detail::fvec4SIMD | mix (detail::fvec4SIMD const &x, detail::fvec4SIMD const &y, detail::fvec4SIMD const &a)
| (From GLM_GTX_simd_vec4 extension, common function)
detail::fvec4SIMD | mod (detail::fvec4SIMD const &x, detail::fvec4SIMD const &y)
| Modulus.
detail::fvec4SIMD | mod (detail::fvec4SIMD const &x, float const &y)
| Modulus.
float | niceLength (detail::fvec4SIMD const &x)
| Returns the length of x, i.e., sqrt(x * x).
detail::fvec4SIMD | niceLength4 (detail::fvec4SIMD const &x)
| Returns the length of x, i.e., sqrt(x * x).
detail::fvec4SIMD | niceSqrt (detail::fvec4SIMD const &x)
| Returns the positive square root of x with the nicest quality but very slow.
detail::fvec4SIMD | normalize (detail::fvec4SIMD const &x)
| Returns a vector in the same direction as x but with length of 1.
detail::fvec4SIMD | reflect (detail::fvec4SIMD const &I, detail::fvec4SIMD const &N)
| For the incident vector I and surface orientation N, returns the reflection direction : result = I - 2.0 * dot(N, I) * N.
detail::fvec4SIMD | refract (detail::fvec4SIMD const &I, detail::fvec4SIMD const &N, float const &eta)
| For the incident vector I and surface normal N, and the ratio of indices of refraction eta, return the refraction vector.
detail::fvec4SIMD | round (detail::fvec4SIMD const &x)
| Returns a value equal to the nearest integer to x.
detail::fvec4SIMD | sign (detail::fvec4SIMD const &x)
| Returns 1.0 if x > 0, 0.0 if x = 0, or -1.0 if x < 0.
float | simdDot (detail::fvec4SIMD const &x, detail::fvec4SIMD const &y)
| Returns the dot product of x and y, i.e., result = x * y.
detail::fvec4SIMD | simdFaceforward (detail::fvec4SIMD const &N, detail::fvec4SIMD const &I, detail::fvec4SIMD const &Nref)
| If dot(Nref, I) < 0.0, return N, otherwise, return -N.
detail::fvec4SIMD | smoothstep (detail::fvec4SIMD const &edge0, detail::fvec4SIMD const &edge1, detail::fvec4SIMD const &x)
| Returns 0.0 if x <= edge0 and 1.0 if x >= edge1 and performs smooth Hermite interpolation between 0 and 1 when edge0 < x < edge1.
detail::fvec4SIMD | sqrt (detail::fvec4SIMD const &x)
| Returns the positive square root of x.
detail::fvec4SIMD | step (detail::fvec4SIMD const &edge, detail::fvec4SIMD const &x)
| Returns 0.0 if x < edge, otherwise it returns 1.0.
detail::fvec4SIMD | trunc (detail::fvec4SIMD const &x)
| Returns a value equal to the nearest integer to x whose absolute value is not larger than the absolute value of x.
detail::tvec4< float > | vec4_cast (detail::fvec4SIMD const &x)
| Convert a simdVec4 to a vec4.

## Detailed Description

GLM_GTX_simd_vec4 extension: SIMD implementation of vec4 type.