diff --git a/src/meshlabplugins/filter_sampling/filter_sampling.cpp b/src/meshlabplugins/filter_sampling/filter_sampling.cpp
index 02b5cfd3f..56e836866 100644
--- a/src/meshlabplugins/filter_sampling/filter_sampling.cpp
+++ b/src/meshlabplugins/filter_sampling/filter_sampling.cpp
@@ -776,6 +776,8 @@ switch(ID(action))
 		mm->updateDataMask(curMM);
 		BaseSampler mps(&(mm->cm));
 
+    mps.perFaceNormal = par.getBool("PerFaceNormal");
+
 		if(par.getBool("EdgeSampling"))
 		{
 			tri::SurfaceSampling<CMeshO,BaseSampler>::EdgeMontecarlo(curMM->cm,mps,par.getInt("SampleNum"),false);
@@ -1237,7 +1239,7 @@ switch(ID(action))
 
 		Point3i volumeDim;
 		Box3m volumeBox = baseMesh->cm.bbox;
-		volumeBox.Offset(volumeBox.Diag()/10.0f+offsetThr);
+		volumeBox.Offset(volumeBox.Diag()/10.0f+abs(offsetThr));
 		BestDim(volumeBox , voxelSize, volumeDim );
 
 		Log("Resampling mesh using a volume of %i x %i x %i",volumeDim[0],volumeDim[1],volumeDim[2]);
diff --git a/src/meshlabplugins/filter_texture/filter_texture.cpp b/src/meshlabplugins/filter_texture/filter_texture.cpp
index 05b3d5003..90d23b82b 100644
--- a/src/meshlabplugins/filter_texture/filter_texture.cpp
+++ b/src/meshlabplugins/filter_texture/filter_texture.cpp
@@ -1045,7 +1045,7 @@ bool FilterTexturePlugin::applyFilter(QAction *filter, MeshDocument &md, RichPar
 		assert(srcMesh!=NULL);
 		assert(trgMesh!=NULL);
 
-		CheckError(trgMesh->cm.fn == 0, "Source mesh requires to have faces");
+		CheckError(srcMesh->cm.fn == 0, "Source mesh requires to have faces");
 
 		// Check whether is possible to access source mesh texture
 		CheckError(!srcMesh->hasDataMask(MeshModel::MM_WEDGTEXCOORD), "Source mesh doesn't have Per Wedge Texture Coordinates");