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98 lines
3.5 KiB
98 lines
3.5 KiB
/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// OpenGL Mathematics Copyright (c) 2005 - 2011 G-Truc Creation (www.g-truc.net) |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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// Created : 2008-08-03 |
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// Updated : 2010-02-04 |
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// Licence : This source is under MIT License |
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// File : glm/core/func_geometric.hpp |
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/////////////////////////////////////////////////////////////////////////////////////////////////// |
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#ifndef glm_core_func_geometric |
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#define glm_core_func_geometric |
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namespace glm |
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{ |
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/// \addtogroup core_funcs |
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/// @{ |
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//! Returns the length of x, i.e., sqrt(x * x). |
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//! |
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/length.xml">GLSL length man page</a> |
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//! \li GLSL 1.30.08 specification, section 8.4 |
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template <typename genType> |
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typename genType::value_type length( |
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genType const & x); |
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//! Returns the distance betwwen p0 and p1, i.e., length(p0 - p1). |
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//! |
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/distance.xml">GLSL distance man page</a> |
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//! \li GLSL 1.30.08 specification, section 8.4 |
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template <typename genType> |
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typename genType::value_type distance( |
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genType const & p0, |
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genType const & p1); |
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//! Returns the dot product of x and y, i.e., result = x * y. |
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//! |
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/dot.xml">GLSL dot man page</a> |
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//! \li GLSL 1.30.08 specification, section 8.4 |
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template <typename genType> |
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typename genType::value_type dot( |
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genType const & x, |
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genType const & y); |
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//! Returns the cross product of x and y. |
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//! |
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/cross.xml">GLSL cross man page</a> |
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//! \li GLSL 1.30.08 specification, section 8.4 |
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template <typename T> |
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detail::tvec3<T> cross( |
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detail::tvec3<T> const & x, |
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detail::tvec3<T> const & y); |
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//! Returns a vector in the same direction as x but with length of 1. |
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//! |
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/normalize.xml">GLSL normalize man page</a> |
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//! \li GLSL 1.30.08 specification, section 8.4 |
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template <typename genType> |
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genType normalize( |
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genType const & x); |
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//! If dot(Nref, I) < 0.0, return N, otherwise, return -N. |
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//! |
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/faceforward.xml">GLSL faceforward man page</a> |
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//! \li GLSL 1.30.08 specification, section 8.4 |
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template <typename genType> |
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genType faceforward( |
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genType const & N, |
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genType const & I, |
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genType const & Nref); |
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//! For the incident vector I and surface orientation N, |
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//! returns the reflection direction : result = I - 2.0 * dot(N, I) * N. |
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//! |
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/reflect.xml">GLSL reflect man page</a> |
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//! \li GLSL 1.30.08 specification, section 8.4 |
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template <typename genType> |
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genType reflect( |
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genType const & I, |
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genType const & N); |
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//! For the incident vector I and surface normal N, |
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//! and the ratio of indices of refraction eta, |
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//! return the refraction vector. |
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//! |
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//! \li <a href="http://www.opengl.org/sdk/docs/manglsl/xhtml/refract.xml">GLSL refract man page</a> |
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//! \li GLSL 1.30.08 specification, section 8.4 |
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template <typename genType> |
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genType refract( |
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genType const & I, |
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genType const & N, |
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typename genType::value_type const & eta); |
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/// @} |
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}//namespace glm |
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#include "func_geometric.inl" |
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#endif//glm_core_func_geometric
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