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[blobs.git] / src / math / geometry.hpp

diff --git a/src/math/geometry.hpp b/src/math/geometry.hpp
index 6410ee013cb622f84879e3788dfd5dee8bb6d720..8f062841fe8adf64b05f6c8a0668f3e8a07adf2f 100644 (file)
--- a/src/math/geometry.hpp
+++ b/src/math/geometry.hpp
@@ -4,6 +4,8 @@
 #include "glm.hpp"
 
 #include <algorithm>
+#include <ostream>
+#include <glm/gtx/io.hpp>
 
 
 namespace blobs {
@@ -26,6 +28,9 @@ struct AABB {
 
 };
 
+inline std::ostream &operator <<(std::ostream &out, const AABB &b) {
+       return out << "AABB(" << b.min << ", " << b.max << ")";
+}
 /// matrices must not scale
 bool Intersect(
        const AABB &a_box,
@@ -54,6 +59,16 @@ private:
 
 };
 
+inline Ray operator *(const glm::dmat4 &m, const Ray &r) noexcept {
+       glm::dvec4 o(m * glm::dvec4(r.Origin(), 1.0));
+       glm::dvec4 d(m * glm::dvec4(r.Origin() + r.Direction(), 1.0));
+       return Ray(glm::dvec3(o) / o.w, glm::normalize((glm::dvec3(d) / d.w) - (glm::dvec3(o) / o.w)));
+}
+
+inline std::ostream &operator <<(std::ostream &out, const Ray &r) {
+       return out << "Ray(" << r.Origin() << ", " << r.Direction() << ")";
+}
+
 /// oriented ray/box intersection test
 bool Intersect(
        const Ray &,