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Fix T49290: Specific .blend with hair crashes in MacOS 2.78 RC1 on render 

The issue was caused by some false-positive empty non-AABB intersection.
Tried to tweak it a bit so it does not record intersection anymore.

Hopefully will work for all platforms. Tested here on iMac and Debian.
This commit is contained in:
Sergey Sharybin 2016-09-13 10:59:48 +02:00
parent 56c798ee62
commit 52038fd8c7
Notes: blender-bot 2023-02-14 11:25:11 +01:00 
Referenced by issue #49290, specific .blend with hair crashes in MacOS 2.78 RC1 on render
1 changed files with 17 additions and 3 deletions
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20
intern/cycles/bvh/bvh.cpp
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@ -951,9 +951,23 @@ void QBVH::pack_unaligned_node(int idx,
/* We store BB which would never be recorded as intersection
* so kernel might safely assume there are always 4 child nodes.
*/
for(int j = 1; j < 13; ++j) {
data[j][i] = 0.0f;
}
data[1][i] = 1.0f;
data[2][i] = 0.0f;
data[3][i] = 0.0f;
data[4][i] = 0.0f;
data[5][i] = 0.0f;
data[6][i] = 0.0f;
data[7][i] = 0.0f;
data[8][i] = 0.0f;
data[9][i] = 0.0f;
data[10][i] = -FLT_MAX;
data[11][i] = -FLT_MAX;
data[12][i] = -FLT_MAX;
data[13][i] = __int_as_float(0);
}