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[param98 <>]

I got a segmentation fault while running  Polyhedron demo. cmake and make
were executed without error.
The segfault occurs as soon as I run the demo. A window appears for a split
second but segfault occurs before I can interact with it.
Details about my setup:
1. Ubuntu 16.04
2. QGL Viewer 2.6.4
3. Qt 5.6.2
4. OpenGL version 3.0, OpenGL core profile version 4.5
5. CGAL version 4.7

Here is the error message:

$ ./Polyhedron_3
Enable scripts.
# Looking for plugins in directory
"/home/param/Libs/demos/demo/Polyhedron"...
### Loading " libadvancing_front_plugin.so "...  success
### Loading " libcamera_positions_plugin.so "...  success
### Loading " libconvex_hull_plugin.so "...  success
### Loading " libcorefinement_plugin.so "...  success
### Loading " libcut_plugin.so "...  success
### Loading " libedit_polyhedron_plugin.so "...  success
### Loading " libfairing_plugin.so "...  success
### Loading " libfeatures_detection_plugin.so "...  success
### Loading " libgocad_plugin.so "...  success
### Loading " libhole_filling_plugin.so "...  success
### Loading " libhole_filling_polyline_plugin.so "...  success
### Loading " libinside_out_plugin.so "...  success
### Loading " libintersection_plugin.so "...  success
    + Loading Function "libp_klein_function_plugin.so"...
    + Loading Function "libp_sphere_function_plugin.so"...
    + Loading Function "libp_tanglecube_function_plugin.so"...
### Loading " libio_implicit_function_plugin.so "...  success
### Loading " libjet_fitting_plugin.so "...  success
### Loading " libjoin_and_split_polyhedra_plugin.so "...  success
### Loading " libkernel_plugin.so "...  success
### Loading " libmean_curvature_flow_skeleton_plugin.so "...  success
### Loading " libmesh_3_plugin.so "...  success
### Loading " libmesh_segmentation_plugin.so "...  success
### Loading " libmesh_simplification_plugin.so "...  success
### Loading " libnef_io_plugin.so "...  success
### Loading " libnef_plugin.so "...  success
### Loading " libnormal_estimation_plugin.so "...  success
### Loading " liboff_plugin.so "...  success
### Loading " liboff_to_nef_plugin.so "...  success
### Loading " liboff_to_xyz_plugin.so "...  success
### Loading " liborient_soup_plugin.so "...  success
### Loading " libparameterization_plugin.so "...  success
### Loading " libpca_plugin.so "...  success
### Loading " libpoint_inside_polyhedron_plugin.so "...  success
### Loading " libpoint_set_average_spacing_plugin.so "...  success
### Loading " libpoint_set_bilateral_smoothing_plugin.so "...  success
### Loading " libpoint_set_outliers_removal_plugin.so "...  success
### Loading " libpoint_set_selection_plugin.so "...  success
### Loading " libpoint_set_shape_detection_plugin.so "...  success
### Loading " libpoint_set_simplification_plugin.so "...  success
### Loading " libpoint_set_smoothing_plugin.so "...  success
### Loading " libpoint_set_upsampling_plugin.so "...  success
### Loading " libpoint_set_wlop_plugin.so "...  success
### Loading " libpoisson_plugin.so "...  success
### Loading " libpolyhedron_slicer_plugin.so "...  success
### Loading " libpolyhedron_stitching_plugin.so "...  success
### Loading " libpolylines_io_plugin.so "...  success
### Loading " libremeshing_plugin.so "...  success
### Loading " libscale_space_reconstruction_plugin.so "...  success
### Loading " libselection_io_plugin.so "...  success
### Loading " libselection_plugin.so "...  success
### Loading " libself_intersection_plugin.so "...  success
### Loading " libshortest_path_plugin.so "...  success
### Loading " libstl_plugin.so "...  success
### Loading " libsubdivision_methods_plugin.so "...  success
### Loading " libtransform_polyhedron_plugin.so "...  success
### Loading " libtriangulate_facets_plugin.so "...  success
### Loading " libtrivial_plugin.so "...  success
### Loading " libvcm_normal_estimation_plugin.so "...  success
### Loading " libxyz_plugin.so "...  success
Succesfully loaded shader func 'VisibilityVP' in file 'Raycasting.glsl'
Succesfully loaded shader func 'VisibilityFP' in file 'Raycasting.glsl'
Succesfully loaded shader func 'AttributeVP' in file 'Raycasting.glsl'
Succesfully loaded shader func 'AttributeFP' in file 'Raycasting.glsl'
Succesfully loaded shader func 'Finalization' in file 'Finalization.glsl'
Segmentation fault (core dumped)

Any help would be greatly appreciated. Thank you.




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