Intersection Class Reference

Provide helpers for basic analytic intersections. More...

#include <Intersection.hpp>

Static Public Member Functions
static bool	sphere (const glm::vec3 &rayOrigin, const glm::vec3 &rayDir, float radius, glm::vec2 &roots)
static bool	box (const Ray &ray, const BoundingBox &box, float mini, float maxi)

Detailed Description

Provide helpers for basic analytic intersections.

Member Function Documentation

box()

bool Intersection::box ( const Ray &  ray, const BoundingBox &  box, float  mini, float  maxi  )

static

Test a ray and bounding box intersection.

Parameters

ray	the ray
box	the bounding box
mini	the minimum allowed distance along the ray
maxi	the maximum allowed distance along the ray

Returns

a boolean denoting intersection

sphere()

bool Intersection::sphere ( const glm::vec3 &  rayOrigin, const glm::vec3 &  rayDir, float  radius, glm::vec2 &  roots  )

static

Check if a sphere of a given radius is intersected by a ray defined by an origin wrt to the sphere center and a normalized direction.

Parameters

rayOrigin	the origin of the ray
rayDir	the direction of the ray (normalized)
radius	the radius of the sphere to intersect
roots	will contain the two roots of the associated polynomial, ordered.

Returns

true if there is intersection.

Warning

The intersection can be in the negative direction along the ray. Check the sign of the roots to know.

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The documentation for this class was generated from the following files:

• src/engine/raycaster/Intersection.hpp
• src/engine/raycaster/Intersection.cpp