From e4cdda548a582b626f4a42bb702f166178a083e5 Mon Sep 17 00:00:00 2001
From: Sergey Sharybin <sergey.vfx@gmail.com>
Date: Mon, 11 Apr 2016 16:18:33 +0200
Subject: [PATCH] Cycles: Remove unused SAH from BVH pack

---
 intern/cycles/bvh/bvh.cpp | 9 ---------
 intern/cycles/bvh/bvh.h   | 4 ----
 2 files changed, 13 deletions(-)

diff --git a/intern/cycles/bvh/bvh.cpp b/intern/cycles/bvh/bvh.cpp
index b1273d64098..9e63485c04e 100644
--- a/intern/cycles/bvh/bvh.cpp
+++ b/intern/cycles/bvh/bvh.cpp
@@ -89,15 +89,6 @@ void BVH::build(Progress& progress)
 		return;
 	}
 
-	/* compute SAH */
-	if(!params.top_level)
-		pack.SAH = root->computeSubtreeSAHCost(params);
-
-	if(progress.get_cancel()) {
-		root->deleteSubtree();
-		return;
-	}
-
 	/* pack triangles */
 	progress.set_substatus("Packing BVH triangles and strands");
 	pack_primitives();
diff --git a/intern/cycles/bvh/bvh.h b/intern/cycles/bvh/bvh.h
index 4b9f1bae801..6076c25ca31 100644
--- a/intern/cycles/bvh/bvh.h
+++ b/intern/cycles/bvh/bvh.h
@@ -67,13 +67,9 @@ struct PackedBVH {
 	/* index of the root node. */
 	int root_index;
 
-	/* surface area heuristic, for building top level BVH */
-	float SAH;
-
 	PackedBVH()
 	{
 		root_index = 0;
-		SAH = 0.0f;
 	}
 };