Physical materials

Opening the physical materials editor

Do one of the following:
  • Launch the BLMATERIALS command.
  • Use the hamburger menu (Open material dialog) in the compositions panel
  • Click the Browse button () of the Material property of a component in the Mechanical Browser.


Creating physical materials

You can create physical materials in either the Project or the Central database. You can create new materials from scratch or copy them from an existing material.

Creating a physical material from scratch

Select a material in either the In Project or the In central database material list.

Do one of the following:
  1. Click the New Material button () in the Physical Materials dialog box.
  2. Right-click and choose New Material in the context menu.

A material named New is added to the selected database. Now you can edit the new material.

Adding a physical material as a copy of an existing material

Select a material in the In Project or in the In central database material list. Do the following:
  1. Right-click on the material you want to copy and choose Duplicate in the context menu.
  2. A material named <existing_material>-2 is added in selected database.
  3. Edit the copy of the material.

Editing a physical material

The various settings of a physical material definition are divided into three groups under three tabs on the Physical Materials dialog:
  • Identity: Name, Class and Description of the material.
  • Appearance: the BIM Materials layers the composition is composed of.
  • Properties: properties of building material such as Cost, Manufacturer, Thickness...

Select the material you want to edit in the In Project or in the In central database list on the Physical Materials dialog box.

Identity tab page

  1. Type a Name for the material.
  2. Select a Class from the drop-down list*.
  3. (Optional) Type a Description.
* Click the Browse button () to open the Material Classes dialog box where you can create new material classes.
Appearance tab page


  • Section settings

    The Section settings define the fill of the section boundary lines in generated 2d sections.

    1. Click the Hatch Type button and select the type of the hatch: None, Solid, Linear, Predefined or Custom.
    2. Do one of the following to select a predefined or custom hatch pattern:
      • Click the Hatch preview and select the pattern in the Hatch Pattern dialog box.
      • Click the Hatch Pattern Name button and select the pattern in the list.
    3. Define the Scale.

      The final pattern scale in a section is the product of the Scale setting of the physical material and the value of the Scale property of the BIM section. As a result, the printed scale of the hatch pattern is independent of the section plane scale.

    4. Set the Rotation angle.
    5. In the Layer field, either type a name or click the arrow button and select a layer in the list.
    6. Optionally, check the Annotative option.
    7. Optionally, choose a Hatch Background Color for the selected hatch pattern.
  • Elevation settings

    The Elevation settings define the elevation fill of the section background lines in generated 2d sections. The Generate elevation fill setting needs to be active on the viewport of the 2d section to use elevation fills.

    See the Section settings above, except for the Scale setting. The elevation hatch is independent of the Scale property of the BIM section.

  • 3D settings

    The 3D settings define the rendering material that will be used in the 3d model.

    Double-click the preview image and select a material in the Select Render Material dialog box.

Properties tab page
  1. Edit the Tags field: tags are separated by commas.

    Tags are case sensitive.

    Click the Browse button () to open the Tags dialog box.


  2. Click the New Item button () to add a new tag at the bottom of the list.
  3. Select a tag in the list and click a tool button:
    • : Edit the selected tag.
    • : Delete the tag.
    • : Move the tag up.
    • : Move the tag down.
  4. (Optional) Expand the Information properties and fill out the necessary fields.
  5. (Optional) Expand the Physical properties and specify the physical properties of the material.
  6. Expand the BIM properties.
    • Union Section: Select Yes to remove connection lines in sections between different solids of this material. Select No to keep the connection lines.
    • Union Elevation: Select Yes to remove connection lines in elevations between different solids of this material. Select No to keep the connection lines.
    • Select a Function from the drop-down list.
    • Variable Thickness: select Yes to allow a variable thickness. When applying a composition that contains a material with variable thickness to a solid, the ply thickness will adapt so the total composition thickness matches the thickness of the original solid. Select No to not allow a variable thickness. When applying a composition where all plies have a fixed thickness to a solid, the thickness of the solid will be adapted to match the thickness of the composition.
    • Type a default thickness in the Thickness field.
  7. Click OK.

Copying materials between the project and library databases

  1. Select the material(s) in the source database.
    Press and hold the Ctrl key to select multiple materials.
  2. Drag the materials to the target database.

    The selection set is copied.

    If one or more materials already exist in the target database, an alert box displays:


    Click the appropriate button to either overwrite, duplicate or skip the existing material. If the Apply to all materials in this operation option is selected, the option applies to all existing materials. Duplicated materials have an index number added to their name.

Deleting physical materials

  1. On the Physical Materials dialog box, select the material(s) in the Project or Library database.
  2. Click Delete.
Note: You cannot delete materials that are used in a composition or a mechanical component.