1 files changed, 8 insertions, 0 deletions
diff --git a/source/blender/blenloader/intern/versioning_290.c b/source/blender/blenloader/intern/versioning_290.c
index bf70a50631f..a4a16acf1d1 100644
--- a/source/blender/blenloader/intern/versioning_290.c
+++ b/source/blender/blenloader/intern/versioning_290.c
@@ -36,6 +36,7 @@
 #include "DNA_gpencil_modifier_types.h"
 #include "DNA_gpencil_types.h"
 #include "DNA_hair_types.h"
+#include "DNA_light_types.h"
 #include "DNA_mesh_types.h"
 #include "DNA_meshdata_types.h"
 #include "DNA_modifier_types.h"
@@ -1915,5 +1916,12 @@ void blo_do_versions_290(FileData *fd, Library *UNUSED(lib), Main *bmain)
    */
   {
     /* Keep this block, even when empty. */
+
+    if (!DNA_struct_elem_find(fd->filesdna, "Light", "float", "diff_fac")) {
+      LISTBASE_FOREACH (Light *, light, &bmain->lights) {
+        light->diff_fac = 1.0f;
+        light->volume_fac = 1.0f;
+      }
+    }
   }
 }