> For the complete documentation index, see [llms.txt](https://sylvl.gitbook.io/panoramake-legacy-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://sylvl.gitbook.io/panoramake-legacy-docs/interface-overview/builder-interface/building-masks.md). # Building Masks The mask builder works by toggling filters or/and a noise together. These masks allow to automatically apply the Sub-Layer Material on the terrain. The functions described below applies to the whole mask and not the individual filters. ![](https://content.gitbook.com/content/mlqGhioNPOejbOqn53Jr/blobs/xNip28IiR9lv8dW3v2dX/Mask_1.png)
NumberFunction
1Changes how the masks act with the manually drawn areas of the Sub-Layer. See Manual Sub-Layer Drawing for more information.
2Clicking on the rectangle shows the color picker, to change the color of the layer when in LOOKDEV View. See LOOKDEV View for more information.
3
  • Contrasts, Increase/Decrease force of the Sub-Layer mask.
    The Force multiplies the mask by itself to increase its force.
  • The steps values steps down the values instead of letting them smooth if set to a value greater than 0.
  • The "Start from white mask" sets the mask to start to 1 instead of 0.
The **"Contrain Mask to Sub-Layer"** options allows you to constrain the Mask of the current Sub-Layer to one or more Sub-Layers, as long as they are under the Sub-Layers being edited and have valid masks.

The Sub-Layer 2 (Green) is constrained
to the Sub-Layer 1 (Red).

The next page will show in more detail each filters.