Fix T49249: Alembic export with multiple hair systems crash blender

Crash was due to a name collision in Alembic objects caused by the fact
that names derive from the one of the Blender object. An object having
multiple particles system would thus give its name to various
subobjects.

Now use the name of the particles system for the Alembic object.

2 files changed, 2 insertions, 2 deletions

diff --git a/source/blender/alembic/intern/abc_hair.cc b/source/blender/alembic/intern/abc_hair.cc
index 45bf9b7ab8a..14bcf6731ea 100644
--- a/source/blender/alembic/intern/abc_hair.cc
+++ b/source/blender/alembic/intern/abc_hair.cc
@@ -59,7 +59,7 @@ AbcHairWriter::AbcHairWriter(Scene *scene,
 {
 	m_psys = psys;
 
-	OCurves curves(parent->alembicXform(), m_name, m_time_sampling);
+	OCurves curves(parent->alembicXform(), psys->name, m_time_sampling);
 	m_schema = curves.getSchema();
 }
 
diff --git a/source/blender/alembic/intern/abc_points.cc b/source/blender/alembic/intern/abc_points.cc
index 322bb906bf5..03014547416 100644
--- a/source/blender/alembic/intern/abc_points.cc
+++ b/source/blender/alembic/intern/abc_points.cc
@@ -67,7 +67,7 @@ AbcPointsWriter::AbcPointsWriter(Scene *scene,
 {
 	m_psys = psys;
 
-	OPoints points(parent->alembicXform(), m_name, m_time_sampling);
+	OPoints points(parent->alembicXform(), psys->name, m_time_sampling);
 	m_schema = points.getSchema();
 }