core_func_geometric Module Reference
These operate on vectors as vectors, not componentwise.
Include < glm/geometric.hpp > to use these core features.
Public Member Functions

GLM_FUNC_DECL Tlength (vec< L, T, Q > const &x)
Returns the length of x, i.e., sqrt(x * x).
L
An integer between 1 and 4 included that qualify the dimension of the vector.
TFloatingpoint scalar types.
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GLM_FUNC_DECL Tdistance (vec< L, T, Q > const &p0, vec< L, T, Q > const &p1)
Returns the distance betwwen p0 and p1, i.e., length(p0  p1).
L
An integer between 1 and 4 included that qualify the dimension of the vector.
TFloatingpoint scalar types.
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GLM_FUNC_DECL Tdot (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.
L
An integer between 1 and 4 included that qualify the dimension of the vector.
TFloatingpoint scalar types.
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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.
T
Floatingpoint scalar types.
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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. According to issue 10 GLSL 1.10 specification, if length(x) == 0 then result is undefined and generate an error.
L
An integer between 1 and 4 included that qualify the dimension of the vector.
TFloatingpoint scalar types.
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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.
L
An integer between 1 and 4 included that qualify the dimension of the vector.
TFloatingpoint scalar types.
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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.
L
An integer between 1 and 4 included that qualify the dimension of the vector.
TFloatingpoint scalar types.
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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.
L
An integer between 1 and 4 included that qualify the dimension of the vector.
TFloatingpoint scalar types.
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