From 0b999f4165f599372a5b97eba84e9e788085ad78 Mon Sep 17 00:00:00 2001
From: EvilSpirit <anandamide@mail.ru>
Date: Fri, 24 Jun 2016 15:12:10 +0600
Subject: [PATCH] Improved outline detection condition.

Before this commit, circles parallel to the camera plane caused
some edges to be randomly marked as outlines.
---
 src/mesh.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesh.cpp b/src/mesh.cpp
index b03c9906..10a735a1 100644
--- a/src/mesh.cpp
+++ b/src/mesh.cpp
@@ -1052,7 +1052,7 @@ void SKdNode::MakeOutlinesInto(SOutlineList *sol) const
 }
 
 bool SOutline::IsVisible(Vector projDir) const {
-    return (nl.Dot(projDir) > 0.0) != (nr.Dot(projDir) > 0.0);
+    return (nl.Dot(projDir) > LENGTH_EPS) == (nr.Dot(projDir) < LENGTH_EPS);
 }
 
 void SOutlineList::Clear() {