X-Git-Url: http://git.localhorst.tv/?p=blobs.git;a=blobdiff_plain;f=src%2Fmath%2Fgeometry.hpp;h=6410ee013cb622f84879e3788dfd5dee8bb6d720;hp=4d1b07bbf2f1e93c61f97f5a6fbf685c56f6b724;hb=348143f5e41a5692ed7c8deab200f3c62f4395a2;hpb=237297d676d6841a35d320cc910a2d42aa9c13ef

diff --git a/src/math/geometry.hpp b/src/math/geometry.hpp
index 4d1b07b..6410ee0 100644
--- a/src/math/geometry.hpp
+++ b/src/math/geometry.hpp
@@ -35,6 +35,33 @@ bool Intersect(
 	glm::dvec3 &normal,
 	double &depth) noexcept;
 
+class Ray {
+
+public:
+	Ray(const glm::dvec3 &orig, const glm::dvec3 &dir)
+	: orig(orig), dir(dir), inv_dir(1.0 / dir) { }
+
+	void Origin(const glm::dvec3 &o) noexcept { orig = o; }
+	const glm::dvec3 &Origin() const noexcept { return orig; }
+	void Direction(const glm::dvec3 &d) noexcept { dir = d; inv_dir = 1.0 / d; }
+	const glm::dvec3 &Direction() const noexcept { return dir; }
+	const glm::dvec3 &InverseDirection() const noexcept { return inv_dir; }
+
+private:
+	glm::dvec3 orig;
+	glm::dvec3 dir;
+	glm::dvec3 inv_dir;
+
+};
+
+/// oriented ray/box intersection test
+bool Intersect(
+	const Ray &,
+	const AABB &,
+	const glm::dmat4 &M,
+	glm::dvec3 &normal,
+	double &dist) noexcept;
+
 }
 }