0.9.9 API documentation
geometric.hpp File Reference

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## Functions

template<typename T , qualifier Q>
GLM_FUNC_DECL vec< 3, T, Q > cross (vec< 3, T, Q > const &x, vec< 3, T, Q > const &y)
Returns the cross product of x and y. More...

template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL T distance (vec< L, T, Q > const &p0, vec< L, T, Q > const &p1)
Returns the distance betwwen p0 and p1, i.e., length(p0 - p1). More...

template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL T dot (vec< L, T, Q > const &x, vec< L, T, Q > const &y)
Returns the dot product of x and y, i.e., result = x * y. More...

template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, T, Q > faceforward (vec< L, T, Q > const &N, vec< L, T, Q > const &I, vec< L, T, Q > const &Nref)
If dot(Nref, I) < 0.0, return N, otherwise, return -N. More...

template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL T length (vec< L, T, Q > const &x)
Returns the length of x, i.e., sqrt(x * x). More...

template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, T, Q > normalize (vec< L, T, Q > const &x)
Returns a vector in the same direction as x but with length of 1. More...

template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, T, Q > reflect (vec< L, T, Q > const &I, vec< L, T, Q > const &N)
For the incident vector I and surface orientation N, returns the reflection direction : result = I - 2.0 * dot(N, I) * N. More...

template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, T, Q > refract (vec< L, T, Q > const &I, vec< L, T, Q > const &N, T eta)
For the incident vector I and surface normal N, and the ratio of indices of refraction eta, return the refraction vector. More...