lenn/LearnOpenGL
1
0
Fork 0
mirror of https://github.com/JoeyDeVries/LearnOpenGL.git synced 2026-01-07 09:13:22 +08:00
Code Issues Packages Projects Releases Wiki Activity

Initial commit, all code samples with working CMake script for VS/Windows.

Browse Source
This commit is contained in:
Joey de Vries
2015-03-23 15:42:04 +01:00
commit f28ad1e256
440 changed files with 177823 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
includes/glm/gtx/closest_point.inl Normal file
View File

@@ -0,0 +1,36 @@
///////////////////////////////////////////////////////////////////////////////////////////////////
// OpenGL Mathematics Copyright (c) 2005 - 2013 G-Truc Creation (www.g-truc.net)
///////////////////////////////////////////////////////////////////////////////////////////////////
// Created : 2005-12-30
// Updated : 2008-10-05
// Licence : This source is under MIT License
// File : glm/gtx/closest_point.inl
///////////////////////////////////////////////////////////////////////////////////////////////////
#ifndef glm_gtx_closest_point
#define glm_gtx_closest_point
namespace glm
{
template <typename valType>
GLM_FUNC_QUALIFIER detail::tvec3<valType> closestPointOnLine
(
detail::tvec3<valType> const & point,
detail::tvec3<valType> const & a,
detail::tvec3<valType> const & b
)
{
valType LineLength = distance(a, b);
detail::tvec3<valType> Vector = point - a;
detail::tvec3<valType> LineDirection = (b - a) / LineLength;
// Project Vector to LineDirection to get the distance of point from a
valType Distance = dot(Vector, LineDirection);
if(Distance <= valType(0)) return a;
if(Distance >= LineLength) return b;
return a + LineDirection * Distance;
}
}//namespace glm
#endif//glm_gtx_closest_point