Inputs
Here you can pass the geometry to be processed to the Node.
If you want to use a selection to flip the Normals only in certain sections of the geometry, select the type of selection here. You can choose from points, edges or polygons.
If there is already an active selection on the geometry with the type selected in the Type menu, it will be evaluated automatically. Alternatively, you can introduce the indices of the elements to be processed by the Node here yourself. To do this, select the appropriate element type from the Type menu.
Here you can, for example, use the name of a selection in quotation marks that you want to read out, e.g., "MySelection". Otherwise, the default entry will use an active selection on the geometry.
You can also use special keywords and logical operations here to create a new selection from scratch or a combination of already saved selections. The following keywords and operations can be used:
- Default: This term causes an active selection currently present on the geometry to be used. If no selection is active, all points will be used.
- odd: This term is used to select all elements that have an odd index number.
- even: This term is used to select all elements that have an even index number.
- all: This selects all elements of the selected type.
- hidden: Selects the hidden elements of the geometry.
- Name of a saved selection: If you enter the name of a saved selection in quotation marks, this selection will be read and used. To use a combination of a saved selection and another keyword or selection, use quotation marks with the selection name.
- Index numbers: You can also use index numbers directly, just as you are used to from the Index Array From String Node.
- Mathematical and logical operations: Mathematical or logical operations can be used to combine selections. Using the string odd – "center" for instance selects all odd elements and then subtracts the selection that has been stored by the name "center". You can use +, -, & (logical and), | (logical or) as well as a comma to combine multiple selections or index sequences.
If there is a Normal tag on the geometry, the enabled option ensures that the Normals stored there are also updated. Otherwise, this information will be stored unchanged.