nerdcruft/libcruft-util
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ray: style

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This commit is contained in:
Danny Robson 2015-04-15 18:00:37 +10:00
parent a946b182f9
commit d0bf00a9ac
1 changed files with 9 additions and 7 deletions
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16
ray.cpp
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@ -18,11 +18,13 @@
#include "debug.hpp" #include "debug.hpp"
using util::ray;
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
template <size_t S, typename T> template <size_t S, typename T>
util::ray<S,T>::ray (util::point<S,T> _origin, ray<S,T>::ray (util::point<S,T> _origin,
util::vector<S,T> _direction): util::vector<S,T> _direction):
origin (_origin), origin (_origin),
direction (_direction) direction (_direction)
{ {
@ -37,7 +39,7 @@ util::ray<S,T>::ray (util::point<S,T> _origin,
/// returns 0 if corayar /// returns 0 if corayar
template <size_t S, typename T> template <size_t S, typename T>
T T
util::ray<S,T>::intersect (plane<S,T> q) const ray<S,T>::intersect (plane<S,T> q) const
{ {
return dot (q.p - origin, q.n) / dot (direction, q.n); return dot (q.p - origin, q.n) / dot (direction, q.n);
} }
@ -50,7 +52,7 @@ util::ray<S,T>::intersect (plane<S,T> q) const
/// returns NaN if behind /// returns NaN if behind
template <size_t S, typename T> template <size_t S, typename T>
T T
util::ray<S,T>::intersect (AABB<S,T> r) const ray<S,T>::intersect (AABB<S,T> r) const
{ {
auto t1 = (r.p0 - origin) / direction; auto t1 = (r.p0 - origin) / direction;
auto t2 = (r.p1 - origin) / direction; auto t2 = (r.p1 - origin) / direction;
@ -80,7 +82,7 @@ util::ray<S,T>::intersect (AABB<S,T> r) const
/// returns NaN if behind /// returns NaN if behind
template <size_t S, typename T> template <size_t S, typename T>
T T
util::ray<S,T>::intersect (sphere<S,T> s) const ray<S,T>::intersect (sphere<S,T> s) const
{ {
T b = dot (direction, origin - s.centre); T b = dot (direction, origin - s.centre);
T c = dot (origin - s.centre, origin - s.centre) - s.radius * s.radius; T c = dot (origin - s.centre, origin - s.centre) - s.radius * s.radius;
@ -103,7 +105,7 @@ util::ray<S,T>::intersect (sphere<S,T> s) const
/// returns the closest parameter along the ray to a given point /// returns the closest parameter along the ray to a given point
template <size_t S, typename T> template <size_t S, typename T>
T T
util::ray<S,T>::closest (point<S,T> q) const ray<S,T>::closest (point<S,T> q) const
{ {
// project the origin-point difference onto the direction // project the origin-point difference onto the direction
return dot (origin - q, direction); return dot (origin - q, direction);
@ -113,7 +115,7 @@ util::ray<S,T>::closest (point<S,T> q) const
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
template <size_t S, typename T> template <size_t S, typename T>
util::point<S,T> util::point<S,T>
util::ray<S,T>::at (T t) const ray<S,T>::at (T t) const
{ {
return origin + direction * t; return origin + direction * t;
} }