From 6b6ef77808585713ab1d04f03e970865b7e7ddb8 Mon Sep 17 00:00:00 2001 From: ladevieq Date: Tue, 22 Dec 2020 22:22:04 +0100 Subject: Fix dielectric materials refraction --- include/hittable.hpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/hittable.hpp') diff --git a/include/hittable.hpp b/include/hittable.hpp index aa55034..074de55 100644 --- a/include/hittable.hpp +++ b/include/hittable.hpp @@ -16,7 +16,7 @@ struct hit_info { inline void set_face_normal(const ray& r, const vec3& outward_normal) { front_face = r.direction.dot(outward_normal) < 0.0; - normal = front_face ? outward_normal : -outward_normal; + normal = front_face ? outward_normal : (-outward_normal); } }; -- cgit v1.3