Assigning a Material to a Surface
To assign a material to a surface, you can:
Drag and drop from the editor Materials,
Drag and drop from active element in the Matter sidebar's material library,
Drag and drop from a selected element in the Matter sidebar's material library.
The use of the key modifies, Ctrl, Alt, and Shift, can optimize the assignment of materials to one or several surfaces of the active model.
Ctrl: The Ctrl modifier replaces a given material with a new material on all of the product surfaces to which the first material was assigned. The new material will thus be identically assigned to all of the same surfaces as the previous material had been.
Alt: The Alt modifier resets the position of a material in the scene. This reset is carried out according to the surface mapping that was calculated in Shaper. If you have transformed the surface by the rotation or translation operating modes, using the Alt modifier will recalculate its original position. This command can also be combined with the Shift modifier to position a material according to an absolute grid determined by the surface mapping.
Ctrl+Shift: Combining the Ctrl+Shift modifiers gives access to the context menu containing advanced assignment options:
Apply the material to:
this surface, in the visible aspect layer,
this surface, in the active aspect layer,
all of the surfaces that are currently using the same material as this surface,
all of the surfaces that have the same tags as this surface.
Apply as a sticker on active aspect layer to:
this surface, with the choice among the mappings calculated for this surface,
all of the surfaces using the same material on the same mapping,
Replace a sticker applied to this surface,
Replace a sticker applied to this surface and to all of the visible surfaces where that sticker is also used.