diff --git a/invesalius/data/volume.py b/invesalius/data/volume.py
index 9da5254..f3a894d 100644
--- a/invesalius/data/volume.py
+++ b/invesalius/data/volume.py
@@ -612,6 +612,7 @@ class Volume():
                 volume_mapper.IntermixIntersectingGeometryOn()
             else:
                 volume_mapper = vtk.vtkGPUVolumeRayCastMapper()
+                volume_mapper.UseJitteringOn()
                 self.volume_mapper = volume_mapper
 
         self.SetTypeRaycasting()
@@ -636,14 +637,15 @@ class Volume():
         except NameError:
             pass
 
-        # Using these lines to improve the raycasting quality. These values
-        # seems related to the distance from ray from raycasting.
-        # TODO: Need to see values that improve the quality and don't decrease
-        # the performance. 2.0 seems to be a good value to pix_diag
-        pix_diag = 2.0
-        volume_mapper.SetImageSampleDistance(0.25)
-        volume_mapper.SetSampleDistance(pix_diag / 5.0)
-        volume_properties.SetScalarOpacityUnitDistance(pix_diag)
+        if not self.volume_mapper.IsA("vtkGPUVolumeRayCastMapper"):
+            # Using these lines to improve the raycasting quality. These values
+            # seems related to the distance from ray from raycasting.
+            # TODO: Need to see values that improve the quality and don't decrease
+            # the performance. 2.0 seems to be a good value to pix_diag
+            pix_diag = 2.0
+            volume_mapper.SetImageSampleDistance(0.25)
+            volume_mapper.SetSampleDistance(pix_diag / 5.0)
+            volume_properties.SetScalarOpacityUnitDistance(pix_diag)
 
         self.volume_properties = volume_properties
 
--
libgit2 0.21.2