1 files changed, 1 insertions, 4 deletions
diff --git a/intern/cycles/scene/camera.cpp b/intern/cycles/scene/camera.cpp
index eec269ab542..d9e574873bd 100644
--- a/intern/cycles/scene/camera.cpp
+++ b/intern/cycles/scene/camera.cpp
@@ -772,10 +772,7 @@ float Camera::world_to_raster_size(float3 P)
 #endif
 
     /* TODO: would it help to use more accurate differentials here? */
-    differential3 dP;
-    differential_transfer_compact(&dP, ray.dP, ray.D, ray.dD, ray.D, dist);
-
-    return max(len(dP.dx), len(dP.dy));
+    return differential_transfer_compact(ray.dP, ray.D, ray.dD, dist);
   }
 
   return res;