From fd835f2266fdf28febb7e15591c907f8f28776f8 Mon Sep 17 00:00:00 2001
From: Stan Seibert <stan@mtrr.org>
Date: Tue, 24 Jan 2012 16:20:14 -0500
Subject: Increase look ahead in node_swap BVH optimization to improve surface
 area minimization

---
 chroma/gpu/bvh.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/chroma/gpu/bvh.py b/chroma/gpu/bvh.py
index 7f2794e..3a70fcc 100644
--- a/chroma/gpu/bvh.py
+++ b/chroma/gpu/bvh.py
@@ -216,7 +216,7 @@ def optimize_layer(orig_nodes):
         test_index = i * 2
 
         blocks = 0
-        look_forward = min(8192, n - test_index - 2)
+        look_forward = min(8192*50, n - test_index - 2)
         skip_this_round = min(skip_size, n - test_index - 1)
         flag[:] = 0
         for first_index, elements_this_iter, nblocks_this_iter in \
-- 
cgit