Gawain: fix for building empty element list

2017-04-21 18:32:36 +10:00
parent dafdf72904
commit 15d73e53c3
1 changed files with 6 additions and 0 deletions
--- a/intern/gawain/src/element.c
+++ b/intern/gawain/src/element.c
@@ -134,6 +134,12 @@ void add_triangle_vertices(ElementListBuilder* builder, unsigned v1, unsigned v2

 static unsigned index_range(const unsigned values[], unsigned value_ct, unsigned* min_out, unsigned* max_out)
 	{
+	if (value_ct == 0)
+		{
+		*min_out = 0;
+		*max_out = 0;
+		return 0;
+		}
 	unsigned min_value = values[0];
 	unsigned max_value = values[0];
 	for (unsigned i = 1; i < value_ct; ++i)