From: Mikko Rasa <tdb@tdb.fi>
Date: Fri, 19 Aug 2016 23:24:20 +0000 (+0300)
Subject: Adjust start_nesting in CompositeShape::get_intersections
X-Git-Url: http://git.tdb.fi/?p=libs%2Fmath.git;a=commitdiff_plain;h=36c65e8612aa7209f50270474003a4b22d67042b

Adjust start_nesting in CompositeShape::get_intersections

The intersection points are coalesced to incrementally form a single
composite shape so start_nesting must follow suit.
---

diff --git a/source/geometry/compositeshape.h b/source/geometry/compositeshape.h
index 0c2c838..0f1dd43 100644
--- a/source/geometry/compositeshape.h
+++ b/source/geometry/compositeshape.h
@@ -179,6 +179,9 @@ inline unsigned CompositeShape<T, D, O>::get_intersections(const Ray<T, D> &ray,
 			return 0;
 
 		n = k;
+
+		if(i!=shapes.begin())
+			start_nesting = (start_nesting>!Ops::shortcircuit(false));
 	}
 
 	if(buffer!=points)