diff --git a/snapcraft.yaml b/snapcraft.yaml
index 95d4da7d5..ced5a0837 100644
--- a/snapcraft.yaml
+++ b/snapcraft.yaml
@@ -29,10 +29,9 @@ apps:
 
 parts:
   meshlab:
-    plugin: [qmake, cmake]
+    plugin: qmake
     qt-version: qt5
     source: https://github.com/cnr-isti-vclab/meshlab.git
-    build-snaps: [cmake]
     build-packages:
       - cmake
       - qt5-default
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index cb359792c..22d8ad439 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -2,7 +2,7 @@
 # Copyright 2019, 2021, Visual Computing Lab, ISTI - Italian National Research Council
 # SPDX-License-Identifier: BSL-1.0
 
-cmake_minimum_required(VERSION 3.13)
+cmake_minimum_required(VERSION 3.10)
 project(MeshLab)
 
 ### Build options
diff --git a/src/common/GLExtensionsManager.cpp b/src/common/GLExtensionsManager.cpp
index 985260d56..e9aa7134e 100644
--- a/src/common/GLExtensionsManager.cpp
+++ b/src/common/GLExtensionsManager.cpp
@@ -61,7 +61,7 @@ void GLExtensionsManager::initializeGLextensions()
     if (!glewInitialized) {
         glewExperimental = GL_TRUE;
         GLenum err = glewInit();
-        if (err != GLEW_OK && err != GLEW_ERROR_NO_GLX_DISPLAY) {
+        if (err != GLEW_OK) {
             throw MLException(QString("GLEW initialization failed: %1\n")
                                   .arg((const char *)glewGetErrorString(err)));
         }
diff --git a/src/common/ml_shared_data_context/ml_shared_data_context.cpp b/src/common/ml_shared_data_context/ml_shared_data_context.cpp
index 23899066f..081c90a89 100644
--- a/src/common/ml_shared_data_context/ml_shared_data_context.cpp
+++ b/src/common/ml_shared_data_context/ml_shared_data_context.cpp
@@ -134,11 +134,15 @@ void MLPoliciesStandAloneFunctions::maskMeaninglessAttributesPerPrimitiveModalit
     }
 }
 
-void MLPoliciesStandAloneFunctions::updatedRendAttsAccordingToPriorities(const MLRenderingData::PRIMITIVE_MODALITY pm,const MLRenderingData::RendAtts& updated,const MLRenderingData::RendAtts& current,MLRenderingData::RendAtts& result)
+void MLPoliciesStandAloneFunctions::updatedRendAttsAccordingToPriorities(
+		const MLRenderingData::PRIMITIVE_MODALITY pm,
+		const MLRenderingData::RendAtts& updated, //from the result of the filter
+		const MLRenderingData::RendAtts& current, //from the current model
+		MLRenderingData::RendAtts& result) //returned final result
 {
-    MLRenderingData::RendAtts filteredupdated = updated;
-    MLRenderingData::RendAtts tmp = current;
-    tmp[MLRenderingData::ATT_NAMES::ATT_VERTPOSITION] |= filteredupdated[MLRenderingData::ATT_NAMES::ATT_VERTPOSITION];
+	MLRenderingData::RendAtts filteredupdated = updated;
+	MLRenderingData::RendAtts tmp = current; // tmp will be then saved in returned
+	tmp[MLRenderingData::ATT_NAMES::ATT_VERTPOSITION] |= filteredupdated[MLRenderingData::ATT_NAMES::ATT_VERTPOSITION];
 	if ((pm == MLRenderingData::PR_WIREFRAME_TRIANGLES) || (pm == MLRenderingData::PR_WIREFRAME_EDGES))
 	{
 		tmp[MLRenderingData::ATT_NAMES::ATT_VERTNORMAL] = false;
@@ -146,15 +150,18 @@ void MLPoliciesStandAloneFunctions::updatedRendAttsAccordingToPriorities(const M
 	}
 	else
 	{
+		//vert normal shading if in current or in updated
 		tmp[MLRenderingData::ATT_NAMES::ATT_VERTNORMAL] |= filteredupdated[MLRenderingData::ATT_NAMES::ATT_VERTNORMAL];
-		tmp[MLRenderingData::ATT_NAMES::ATT_FACENORMAL] = (tmp[MLRenderingData::ATT_NAMES::ATT_FACENORMAL] || filteredupdated[MLRenderingData::ATT_NAMES::ATT_FACENORMAL]) && !(filteredupdated[MLRenderingData::ATT_NAMES::ATT_VERTNORMAL]);
+//		tmp[MLRenderingData::ATT_NAMES::ATT_FACENORMAL] = (tmp[MLRenderingData::ATT_NAMES::ATT_FACENORMAL] || filteredupdated[MLRenderingData::ATT_NAMES::ATT_FACENORMAL]) && !(filteredupdated[MLRenderingData::ATT_NAMES::ATT_VERTNORMAL]);
+		//face normal shading if in current and in updated
+		tmp[MLRenderingData::ATT_NAMES::ATT_FACENORMAL] = (tmp[MLRenderingData::ATT_NAMES::ATT_FACENORMAL] && filteredupdated[MLRenderingData::ATT_NAMES::ATT_FACENORMAL]);
 	}
- 
+
 	tmp[MLRenderingData::ATT_NAMES::ATT_VERTCOLOR] |= filteredupdated[MLRenderingData::ATT_NAMES::ATT_VERTCOLOR];
 	tmp[MLRenderingData::ATT_NAMES::ATT_FACECOLOR] = (tmp[MLRenderingData::ATT_NAMES::ATT_FACECOLOR] || filteredupdated[MLRenderingData::ATT_NAMES::ATT_FACECOLOR]) && !(filteredupdated[MLRenderingData::ATT_NAMES::ATT_VERTCOLOR]);
-    tmp[MLRenderingData::ATT_NAMES::ATT_WEDGETEXTURE] |= filteredupdated[MLRenderingData::ATT_NAMES::ATT_WEDGETEXTURE];
-    tmp[MLRenderingData::ATT_NAMES::ATT_VERTTEXTURE] = (tmp[MLRenderingData::ATT_NAMES::ATT_VERTTEXTURE] || filteredupdated[MLRenderingData::ATT_NAMES::ATT_VERTTEXTURE]) && !(filteredupdated[MLRenderingData::ATT_NAMES::ATT_WEDGETEXTURE]);
-    result = tmp;
+	tmp[MLRenderingData::ATT_NAMES::ATT_WEDGETEXTURE] |= filteredupdated[MLRenderingData::ATT_NAMES::ATT_WEDGETEXTURE];
+	tmp[MLRenderingData::ATT_NAMES::ATT_VERTTEXTURE] = (tmp[MLRenderingData::ATT_NAMES::ATT_VERTTEXTURE] || filteredupdated[MLRenderingData::ATT_NAMES::ATT_VERTTEXTURE]) && !(filteredupdated[MLRenderingData::ATT_NAMES::ATT_WEDGETEXTURE]);
+	result = tmp;
 }
 
 void MLPoliciesStandAloneFunctions::suggestedDefaultPerViewRenderingData(MeshModel* meshmodel,MLRenderingData& dtout, size_t minpolnumpersmoothshading)
diff --git a/src/meshlabplugins/filter_camera/filter_camera.cpp b/src/meshlabplugins/filter_camera/filter_camera.cpp
index b7cad21af..3a4204a12 100644
--- a/src/meshlabplugins/filter_camera/filter_camera.cpp
+++ b/src/meshlabplugins/filter_camera/filter_camera.cpp
@@ -74,13 +74,13 @@ QString FilterCameraPlugin::filterName(ActionIDType filterId) const
 QString FilterCameraPlugin::filterInfo(ActionIDType filterId) const
 {
 	switch(filterId) {
-	case FP_SET_MESH_CAMERA :     return QString("This filter allows one to set a shot for the current mesh");
-	case FP_SET_RASTER_CAMERA :   return QString("This filter allows one to set a shot for the current mesh");
-	case FP_QUALITY_FROM_CAMERA : return QString("Compute vertex quality using the camera definition, according to viewing angle or distance");
-	case FP_CAMERA_ROTATE :       return QString("Rotate the camera, or all the cameras of the project. The selected raster is the reference if viewpoint rotation is selected.");
-	case FP_CAMERA_SCALE :        return QString("Scale the camera, or all the cameras of the project. The selected raster is the reference if viewpoint scaling is selected.");
-	case FP_CAMERA_TRANSLATE :    return QString("Translate the camera, or all the cameras of the project.");
-	case FP_CAMERA_TRANSFORM :    return QString("Transform the camera extrinsics, or all the cameras of the project.");
+	case FP_SET_MESH_CAMERA :           return QString("This filter allows one to set a shot for the current mesh");
+	case FP_SET_RASTER_CAMERA :         return QString("This filter allows one to set a shot for the current mesh");
+	case FP_QUALITY_FROM_CAMERA :       return QString("Compute vertex quality using the camera definition, according to viewing angle or distance");
+	case FP_CAMERA_ROTATE :             return QString("Rotate the camera, or all the cameras of the project. The selected raster is the reference if viewpoint rotation is selected.");
+	case FP_CAMERA_SCALE :              return QString("Scale the camera, or all the cameras of the project. The selected raster is the reference if viewpoint scaling is selected.");
+	case FP_CAMERA_TRANSLATE :          return QString("Translate the camera, or all the cameras of the project.");
+	case FP_CAMERA_TRANSFORM :          return QString("Transform the camera extrinsics, or all the cameras of the project.");
 	case FP_ORIENT_NORMALS_WITH_CAMERAS:return QString("Reorient vertex normals using cameras. For this  filter to work the mesh needs to have the attribute 'correspondences' which is only created when loading Bundler files (.out projects)");
 	default : assert(0);
 	}
diff --git a/src/vcglib b/src/vcglib
index c150c3f6b..5c0ea8b20 160000
--- a/src/vcglib
+++ b/src/vcglib
@@ -1 +1 @@
-Subproject commit c150c3f6b66edbb21e96d02d373af264b44afdc2
+Subproject commit 5c0ea8b20ea95adfc3a443ef60e02ee54057ec41