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Diffstat (limited to 'external/include/glm/detail/func_geometric.hpp')
| -rw-r--r-- | external/include/glm/detail/func_geometric.hpp | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/external/include/glm/detail/func_geometric.hpp b/external/include/glm/detail/func_geometric.hpp new file mode 100644 index 0000000..2f39bf5 --- /dev/null +++ b/external/include/glm/detail/func_geometric.hpp @@ -0,0 +1,113 @@ +/// @ref core +/// @file glm/detail/func_geometric.hpp +/// +/// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.5 Geometric Functions</a> +/// +/// @defgroup core_func_geometric Geometric functions +/// @ingroup core +/// +/// These operate on vectors as vectors, not component-wise. + +#pragma once + +#include "type_vec3.hpp" + +namespace glm +{ + /// @addtogroup core_func_geometric + /// @{ + + /// Returns the length of x, i.e., sqrt(x * x). + /// + /// @tparam genType Floating-point vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/length.xml">GLSL length man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.5 Geometric Functions</a> + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL T length( + vecType<T, P> const & x); + + /// Returns the distance betwwen p0 and p1, i.e., length(p0 - p1). + /// + /// @tparam genType Floating-point vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/distance.xml">GLSL distance man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.5 Geometric Functions</a> + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL T distance( + vecType<T, P> const & p0, + vecType<T, P> const & p1); + + /// Returns the dot product of x and y, i.e., result = x * y. + /// + /// @tparam genType Floating-point vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/dot.xml">GLSL dot man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.5 Geometric Functions</a> + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL T dot( + vecType<T, P> const & x, + vecType<T, P> const & y); + + /// Returns the cross product of x and y. + /// + /// @tparam valType Floating-point scalar types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/cross.xml">GLSL cross man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.5 Geometric Functions</a> + template <typename T, precision P> + GLM_FUNC_DECL tvec3<T, P> cross( + tvec3<T, P> const & x, + tvec3<T, P> const & y); + + /// 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. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/normalize.xml">GLSL normalize man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.5 Geometric Functions</a> + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL vecType<T, P> normalize( + vecType<T, P> const & x); + + /// If dot(Nref, I) < 0.0, return N, otherwise, return -N. + /// + /// @tparam genType Floating-point vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/faceforward.xml">GLSL faceforward man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.5 Geometric Functions</a> + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL vecType<T, P> faceforward( + vecType<T, P> const & N, + vecType<T, P> const & I, + vecType<T, P> const & Nref); + + /// For the incident vector I and surface orientation N, + /// returns the reflection direction : result = I - 2.0 * dot(N, I) * N. + /// + /// @tparam genType Floating-point vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/reflect.xml">GLSL reflect man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.5 Geometric Functions</a> + template <typename genType> + GLM_FUNC_DECL genType reflect( + genType const & I, + genType const & N); + + /// For the incident vector I and surface normal N, + /// and the ratio of indices of refraction eta, + /// return the refraction vector. + /// + /// @tparam genType Floating-point vector types. + /// + /// @see <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/refract.xml">GLSL refract man page</a> + /// @see <a href="http://www.opengl.org/registry/doc/GLSLangSpec.4.20.8.pdf">GLSL 4.20.8 specification, section 8.5 Geometric Functions</a> + template <typename T, precision P, template <typename, precision> class vecType> + GLM_FUNC_DECL vecType<T, P> refract( + vecType<T, P> const & I, + vecType<T, P> const & N, + T eta); + + /// @} +}//namespace glm + +#include "func_geometric.inl" |