1 files changed, 3 insertions, 0 deletions
diff --git a/intern/cycles/scene/scene.h b/intern/cycles/scene/scene.h
index e1b36899302..9e3e8d61b80 100644
--- a/intern/cycles/scene/scene.h
+++ b/intern/cycles/scene/scene.h
@@ -197,6 +197,9 @@ class Scene : public NodeOwner {
   /* Optional name. Is used for logging and reporting. */
   string name;
 
+  /* Maps from Light group names to their pass ID. */
+  map<ustring, int> lightgroups;
+
   /* data */
   BVH *bvh;
   Camera *camera;