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Why do Materials sometimes disappear when using LiveSync and a Section Box? - Example B: A house design

Refer to Main Article: 

 

Example B.  A house design (sample Revit template).

The key difference here:- some surfaces are not fully cut in the 'Section Box' and so are still parts of the model in Lumion and therefore have materials.

1.  The Revit Example House Project:

s1._rac_basic_sample_House_Project.jpg

1.1:  House Example - in Lumion:

s1b._House_Example_-_in_Lumion.jpg

1.2:  House Example - full model with some Lumion Materials applied:

1c._House_Example_-_full_model_Lumion_Materials_applied.jpg

Lumion Materials have been applied to:

  • Exterior walls (Lounge exterior wall is still Revit material).
  • Block retaining wall.
  • Landscape - 3D Grass.
  • Windows.
  • Rook - tiles.
  • Roof of lounge - timber decking.

1.3:  Lumion Materials of the whole house ('Section Box' View 1):

1d._Lumion_Materials_of_the_Whole_house.jpg

2.  'Section Box' in Revit - the full model:

2._SectionBox_in_Revit_-_full_model.jpg

3.  The Revit 'Section Box' View 2 - now focuses/changes the view to part of house:

3._Revit_SectionBox_-_now_focuses_on_parts_of_house.jpg

 

4.  The house in Lumion conforming with the active 'Section Box' View 2 view:

4._House_in_Lumion_with_the_active_SectionBox.jpg

4b._Materials_for_House_in_Lumion_with_the_active_SectionBox_B.jpg

4.1:  Materials for the house in Lumion for the current 'Section Box' View 2:

4b._Materials_for_House_in_Lumion_with_the_active_SectionBox.jpg

All surfaces that are fully/completely removed due to the 'Section Box' are no longer present in the model and there is no material for that surface.  Main example of surfaces completely removed:  the roof.

Surfaces that are still showing (in part), for example the main exterior wall, the grass and retaining wall-concrete panels.

4.2:  If you were to open the Material Set saved at the beginning for the whole house then there are less materials showing - some are non-matching to a surface so no material is possible to be applied:

4c._if_open_the_whole_house_MaterialSet_there_are_nonMatching_surfaces_so_no_material_to_apply.jpg

5.  Compare the 'Section Box' View 2 materials to original 'Section Box' View 1 materials (in blue box):

5b_compare_each.jpg

If you save these new materials to the same Material Set file, even though the Revit model still exists but is just hidden (partially) then those non-existent surfaces (no material exists) will no longer be included in the Material Set file.  The model is in a different state.

You need to save the Material Set to a new file name.

6.  Revit view reverted back to the initial view of 'Section Box' View 1:

6._Revit_SectionBox_reverted.jpg

7.  In Lumion the roof has lost its Lumion Material:

7a._the_roof_has_lost_its_Lumion_Material.jpg

8.  Reloading the original set of Materials - the roof material exists and can be applied:

8._Reload_the_oringnal_set_of_Materials_-_the_roof_material_exists_and_can_be_applied_b.jpg

9.  The roof can now be updated from the prior Material Set:

9b_roof_now_updated_from_prior_MatSet.jpg

 

Note - Advanced: Changing Other Materials:

10.  Note that if you change materials whilst working with a different 'Section Box' view such as those reflected in a prior Material Set, for example you change this interior wall during Section Box' View 2

change_this_interior_wall_during_SectionBox.jpg

Then the older Material Set is no longer in sync and would overwrite that surface with the older material:

10_interoir_SB_wall_wil_lchange_back_to_MatSet.jpg

You need to either:

10.1:  Save a Material File for each material changed when working with a 'Section Box' that has changed the model and materials:

save_MatFile.jpg

10.1.1:  Example: Interior Plasterboard Material file:

10b._Interior_Plasterboard_Material_file.jpg

10.1.2:  Interior Plasterboard updated from LNM Material File:

10b._Interior_Plasterboard_Material_file_-updated_from_LNM.jpg

10.2:  Or save a Material Set for those changes.  Even though the Material Set will not have other materials for non-existent surfaces it will have the surfaces you changed and those can match and apply.  You should specifically select the material to be applied due to your more recent update of the material:

10.2.1:  Specifically select which material to apply from a Material Set:

10c._specifically_select_which_material_to_apply_from_a_Material_Set.jpg

 

See also:

or return the the main article:

 

See Also: