From dfae3de6bdf5d3e63d34281c840b9e568d0da613 Mon Sep 17 00:00:00 2001 From: Sergey Sharybin Date: Fri, 25 Aug 2017 14:00:33 +0200 Subject: Cycles: Fix stack overflow during traversal caused by floating overflow Would be nice to be able to catch this with assert as well, will see what would be the best way to do this/.\ Need to verify with Mai that this solves crash for her and maybe consider porting this to 2.79. --- intern/cycles/bvh/bvh4.cpp | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/intern/cycles/bvh/bvh4.cpp b/intern/cycles/bvh/bvh4.cpp index aeedd802f49..777de20423b 100644 --- a/intern/cycles/bvh/bvh4.cpp +++ b/intern/cycles/bvh/bvh4.cpp @@ -242,21 +242,21 @@ void BVH4::pack_unaligned_node(int idx, * so kernel might safely assume there are always 4 child nodes. */ - data[1][i] = 1.0f; - data[2][i] = 0.0f; - data[3][i] = 0.0f; + data[1][i] = NAN; + data[2][i] = NAN; + data[3][i] = NAN; - data[4][i] = 0.0f; - data[5][i] = 0.0f; - data[6][i] = 0.0f; + data[4][i] = NAN; + data[5][i] = NAN; + data[6][i] = NAN; - data[7][i] = 0.0f; - data[8][i] = 0.0f; - data[9][i] = 0.0f; + data[7][i] = NAN; + data[8][i] = NAN; + data[9][i] = NAN; - data[10][i] = -FLT_MAX; - data[11][i] = -FLT_MAX; - data[12][i] = -FLT_MAX; + data[10][i] = NAN; + data[11][i] = NAN; + data[12][i] = NAN; data[13][i] = __int_as_float(0); } -- cgit v1.2.3